Introduction

This machine is a ride-on, multi-purpose machine intended to be used by professional, hired operators in commercial applications. It is primarily designed for maintaining grass on well-maintained lawns in parks, sports fields, and on commercial grounds. Using this product for purposes other than its intended use could prove dangerous to you and bystanders.

Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product properly and safely.

Visit www.Toro.com for product safety and operation training materials, accessory information, help finding a dealer, or to register your product.

Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product. Write the numbers in the space provided.

Important: With your mobile device, you can scan the QR code on the serial number decal (if equipped) to access warranty, parts, and other product information.

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This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.

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This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.

This product complies with all relevant European directives; for details, please see the separate product specific Declaration of Conformity (DOC) sheet.

It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire.

The enclosed engine owner's manual is supplied for information regarding the US Environmental Protection Agency (EPA) and the California Emission Control Regulation of emission systems, maintenance, and warranty. Replacements may be ordered through the engine manufacturer.

Warning

CALIFORNIA

Proposition 65 Warning

Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Safety

This machine has been designed in accordance with ANSI B71.4-2017 and with EN ISO 5395 when you complete the setup procedures and install the CE Kit, per the Declaration of Conformity.

General Safety

This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious personal injury.

  • Read and understand the contents of this Operator’s Manual before starting the engine.

  • Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

  • Do not operate the machine without all guards and other safety protective devices in place and functioning properly on the machine.

  • Keep your hands and feet away from rotating parts. Keep clear of the discharge opening.

  • Keep bystanders and children out of the operating area. Never allow children to operate the machine.

  • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

Improperly using or maintaining this machine can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety-alert symbol Graphic, which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with these instructions may result in personal injury or death.

Safety and Instructional Decals

Graphic

Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or missing.

decalbatterysymbols
decal93-7272
decal106-5976
decal106-9206
decal108-2073
decal115-8155
decal125-9688
decal127-0392
decal132-1316
decal133-8062
decal138-2765
decal138-7471
decal138-7473
decal139-6215
decal139-6217
decal139-6218
decal139-6224

Decal 139-6246: Affix over Decal 139-6215 (as shown in the CE Kit Installation Instructions) for use in CE-compliant countries.

decal139-6246
decal139-6304
decal140-1460
decal140-3125
decal140-6632
decal144-0472

Setup

Removing the Machine from the Shipping Container

Models 31900, 31901, and 31907 Only
  1. Remove the screws that hold down the rear-wheel hubs to the pallet.

  2. Cut the cable tie that holds the driveshaft to the rear wheels.

  3. Remove the rear wheels from the shipping skid.

  4. Raise the roll bar; refer to Raising the Roll Bar.

  5. Connect a hoist to the top, center area of the roll bar and raise the machine.

  6. Remove the shipping skid from the bottom area of the machine.

  7. Position 2 jack stands under the rear area of the machine shown in Raising the Rear of the Machine.

  8. Lower the machine on the jack stands.

Installing the Rear Tires

Models 31900, 31901, and 31907 Only

Parts needed for this procedure:

Rear wheel2
Small washer (2-wheel-drive only)2
Large washer (2-wheel-drive only)2
Bolt (5/8 x 1-1/4 inch) (2-wheel-drive only)2
Dust cap (2-wheel-drive only)2
Lug nut (4-wheel-drive only)8
Thread-locking compound
  1. Remove the shipping bracket from the axle spindle or wheel hub and discard the bracket.

  2. Remove the tires from the shipping container and retain the 2 bolts (5/8 x 1-1/4 inch) and large washers that secured the tires to the container.

  3. Install each tire as follows:

    • 2-wheel-drive machines:

      1. Apply thread-locking compound to the bolt (5/8 x 1-1/4 inch).

      2. Use a small washer, large washer, bolt (5/8 x 1-1/4 inch), and to secure the wheel to the axle spindle (Figure 3).

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      3. Torque the bolt to 203 N∙m (150 ft-lbs).

      4. Install the dust cap to the wheel (Figure 3).

    • 4-wheel-drive machines: Use 4 lug nuts to secure the wheel to the wheel hub (Figure 4).

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  4. Torque the wheel lug nuts; refer to Torquing the Wheel-Lug Nuts.

Removing the Front Tires

Models 31900, 31901, and 31907 Only

Note: You must perform this procedure to correctly install the lift arms.

  1. Loosen and remove the wheel lug nuts (Figure 12).

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  2. Removed the wheels from the wheel hubs (Figure 12).

Installing the Lift-Arm Assembly

Models 31900, 31901, and 31907 Only

Parts needed for this procedure:

Right lift arm1
Left lift arm1
Large pin2
Bolt (3/8 x 2-3/4 inches)2
Nut (3/8 inch)6
Small pin2
Sensor bracket1
Carriage bolt2
Bolt (3/8 x 1-1/4 inches)2
Grease fitting2

Note: Have an assistant help you to install the lift arms, as needed.

  1. Remove the lift arms from the shipping skid.

  2. Use 2 large pins to install the lift arms to the machine frame (Figure 6).

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  3. Install the grease fittings to the large pins (Figure 6).

  4. Use 2 nuts (3/8 inch) and 2 bolts (3/8 x 2-3/4 inches) to secure the large pins to the frame (Figure 7).

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  5. Use 2 carriage bolts and 2 nuts (3/8 inch) to secure the sensor bracket to the right lift arm (Figure 8).

    Note: Ensure that the sensor bracket does not interfere with the sensor.

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  6. Perform the following steps to secure the hydraulic cylinders to the lift arms:

    1. Place a drain pan under the hydraulic manifold (shown in Figure 9).

      Note: A small amount of hydraulic fluid will need to be bled in order to manually retract the lift cylinders.

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    2. Loosen the hose swivel nut connected to port C1 of the hydraulic manifold (Figure 10).

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    3. Use a drift punch to align the cylinder rod holes with the lift-arm holes (Figure 11).

      Note: Fully raise the lift arm to help with the alignment.

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    4. Use 2 bolts (3/8 x 1-1/4 inches), 2 nuts (3/8 inch), and 2 small pins to secure the lift arms to the cylinders (Figure 11).

    5. Torque the hose swivel nut on port C1 to 41 N∙m (30 ft-lb).

      Note: You can use a backup wrench to prevent the hose from twisting.

  7. Grease the attachment pin joints and lift-arm pin joints; refer to Greasing the Bearings and Bushings.

Installing the Front Tires

Models 31900, 31901, and 31907 Only
  1. Use the previously-removed lug nuts to secure the tires to the wheel hubs (Figure 12).

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  2. Torque the wheel lug nuts; refer to Torquing the Wheel-Lug Nuts.

Installing the Tie-Down Bracket

Models 31900, 31901, and 31907 Only

Parts needed for this procedure:

Tie-down bracket1
Bolt (3/8 x 3-1/4 inches)2
Nut (3/8 inch)2

Use 2 bolts (3/8 x 3-1/4 inches) and 2 nuts (3/8 inch) to secure the tie-down bracket to the platform (Figure 13).

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Installing the Seat

Models 31900, 31901, and 31907 Only

Parts needed for this procedure:

Seat Kit (ordered separately; refer to your authorized Toro distributor)1

Install the seat; refer to the Seat Kit Installation Instructions.

Installing the Steering Wheel

Models 31900, 31901, and 31907 Only

Parts needed for this procedure:

Steering wheel1
Cover1
  1. Remove the steering wheel from the shipping skid (Figure 14).

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  2. Remove the nylock nut and washer from the steering shaft.

    Note: Ensure that the foam collar remains on the steering shaft (Figure 14).

  3. Slide the steering wheel and washer onto the steering shaft (Figure 14).

  4. Use the nylock nut to secure the steering wheel to the shaft. Tighten the nylock nut to 27 to 35 N∙m (20 to 26 ft-lb).

  5. Mount the cover to the steering wheel (Figure 14).

Installing the Bumper

Models 31900, 31901, and 31907 Only

Parts needed for this procedure:

Bumper1
Bolt (3/8 x 2-3/4 inches)2
Bolt (3/8 x 3-1/4 inches)4
Nut (3/8 inch)6
  1. Remove the bumper from the shipping skid.

  2. Use 4 bolts (3/8 x 3-1/4 inches) and 4 nuts (3/8 inch) to secure the upper area of the bumper to the machine frame (Figure 15).

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  3. Use 2 bolts (3/8 x 2-3/4 inches) and 2 nuts (3/8 inch) to secure the bumper under the machine frame (Figure 15).

Adjusting the Roll-Bar Position

Models 31900, 31901, and 31907 Only

Raise the roll bar; refer to Raising the Roll Bar.

Connecting the Battery

Models 31900, 31901, and 31907 Only

Connect the battery; refer to Connecting the Battery.

Installing the Attachment

Parts needed for this procedure:

Attachment (ordered separately; refer to your authorized Toro distributor)1
Bolt (5/16 x 2 inches) 2
Nut (5/16 inch)2

Install the front attachment (e.g., cutting unit, plow blade, or blower); perform the following steps and refer to your attachment Operator’s Manual for additional installation instructions.

  1. Have an assistant sit in the seat, turn the key to the ON position, and use the attachment lift switch to lower the lift arms while you push down on the lift arms.

  2. Align the lift-arm holes with the attachment-arm holes per the attachment Installation Instructions.

  3. When you install the PTO shaft to the gearbox, assemble each pair of bolts (5/16 x 2 inches) and nuts (5/16 inch) opposite each other (Figure 16) and torque the nuts to 40 N∙m (30 ft-lb).

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Checking the Fluid Levels

Before you start the engine for the first time, perform the following fluid-level checks:

Checking the Tire Pressure

Check the tire pressure; refer to Checking the Tire Air Pressure.

Important: Maintain pressure in all tires to ensure a good quality-of-cut and proper machine performance. Do not underinflate the tires.

Installing the CE Kit

Parts needed for this procedure:

CE Kit (ordered separately; refer to your authorized Toro distributor)1

If you operate the machine in a country that complies to CE standards, install the CE Kit; refer to the kit Installation Instructions.

Adding Rear Weight

Parts needed for this procedure:

Weight—19 kg (42 lb) [amount varies per your model]
Weight—6 kg (15 lb) [amount varies per your model]
Weight Bracket Kit (if necessary)1
Weight—11 kg (25 lb) [amount varies per your model]

Determining the Required Rear Weight

Refer to the following table for the weight that is shipped with each machine:

ModelShipped Rear Weight
319002 weights (19 kg or 42 lb each)
319011 weight (19 kg or 42 lb)
319070 weights
319095 weights (19 kg or 42 lb each) and 2 weights (6 kg or 15 lb each)

Refer to the following table for the required amount of rear weights for your traction unit and attachment combination:

Required Rear Weight

Traction-Unit Model NumberAttachment Model NumberTotal Required Weights (19 kg or 42lb)Total Required Weights (6 kg or 15 lb)Total Required Weights (11 kg or 25 lb)
3190031970, 31971, 31974200
31972, 31973, 3197530
0283540
MSC23345*52
3190131970, 31971, 3197410
31972, 31973, 3197520
0283530
MSC23345*50
3190731970, 3197100
31972, 3197310
0283552
MSC23345*52
3190931970, 3197152
31972, 31973521**
02835520
MSC2334552
*Winter Enclosure (Model 31990) equipped. **With equipped Weight Bracket Kit 

If you need to add rear weight, contact your authorized Toro distributor for additional weights and refer to the following installation procedures:

Adding 19 kg (42 lb) Weights

  1. Loosen the hardware that secures the weight-lock rod to the bumper.

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  2. Add the required amount of weights.

  3. Tighten the weight-lock-rod hardware to secure the weight to the bumper.

Adding 6 kg (15 lb) Weights

  1. Refer to your authorized Toro distributor to order the following parts:

    • 2 screws (part number 116-4701)

    • 2 washers (part number 125-9676)

    • 2 nuts (part number 104-8301)

  2. Use the hardware to secure the weights to the bumper (Figure 18).

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Adding 11 kg (25 lb) Weights

  1. Refer to your authorized Toro distributor to order the following parts:

    • 2 screws (part number 3231-5)

    • 2 nuts (part number 104-8301)

    • Weight Bracket Kit, which includes mounting hardware and 1 weight (11 kg or 25 lb).

  2. Use the hardware to secure the weights to the extra bracket; refer to the Weight Bracket Kit Installation Instructions.

Adjusting the Weight Transfer of the Attachment

Perform this procedure only if you are installing an attachment other than the standard rotary cutting units (e.g., snowthrower, blade, or flail).

You can change the hydraulic pressure used to transfer the weight of the attachment to the traction unit by adjusting the weight-transfer valve of the hydraulic manifold. For best performance, adjust the weight-transfer valve so that any bouncing motion of the attachment is minimal over uneven terrain, but also adjust the valve so that the attachment does not ride heavily over flat terrain or lower too quickly.

  • To improve the contour-tracking performance of the attachment as you operate the machine over uneven terrain, decrease the weight-transfer (hydraulic) pressure at the hydraulic manifold.

    Note: If the attachment casters or the leading edge of the snowthrower float above the ground, the hydraulic pressure of the weight transfer valve is too high.

  • When you are cutting flat turf, when the cutting unit is scalping the grass, if the quality of cut is uneven from side to side, or the leading edge of a snowthrower is scraping too heavily, increase the weight-transfer pressure at the hydraulic manifold.

    Note: Increasing weight-transfer pressure also transfers the weight from the attachment to the wheels of the traction unit, thereby improving the traction of the traction unit.

Adjust the weight-transfer pressure as follows:

  1. Operate the machine for 10 minutes.

    Note: This will warm the hydraulic fluid.

  2. Park the machine on a level surface, lower the attachment, engage the parking brake, shut off the engine, and remove the key from the switch.

  3. Locate the lift manifold from under the machine (Figure 19).

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  4. Connect a pressure gauge to the test port (labeled G1; refer to Figure 20).

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  5. At the side of the lift manifold, remove the cap from the test port (labeled G1; refer to Figure 20).

  6. Loosen the jam nut at the end of the weight-transfer spool (labeled LC; refer to Figure 20).

  7. Start the engine, set the throttle to HIGH IDLE.

  8. Use a hex-socket wrench to adjust the counterbalance valve of the weight-transfer spool until the gauge indicates the desired pressure; refer to the following table for the recommended pressure setting for the attachment.

    • Rotate the adjusting screw clockwise to increase the pressure.

    • Rotate the adjusting screw counterclockwise to decrease the pressure.

    AttachmentWeight-Transfer Pressure
    Rotary cutting unit1,724 kPa (250 psi)
    Flail Mower (Model No. 02835)1,379 kPa (200 psi)
    Snowthrower1,724 kPa (250 psi)
    Snow Blade (Model No. MSC23345)1,379 kPa (200 psi)
    Snow Broom1,724 kPa (250 psi)
  9. Shut off the engine and remove the key.

  10. Tighten the jam nut at the end of the weight-transfer spool, and torque the nut to 13 to 16 N∙m (10 to 12 ft-lb).

  11. Install the cap on the test port.

  12. Remove the pressure gauge from the test port.

Product Overview

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Traction Pedal

Note: Adjust the seat position before you operate the machine. Refer to the seat kit Installation Instructions for seat-adjustment instructions.

Use the traction pedal (Figure 22) to move the machine forward or rearward.

  • Move the machine forward: Use your toes to press the top of the pedal.

  • Move the machine rearward: Use your toes to press the bottom of the pedal.

Note: You can achieve steady operation by keeping your heel on the platform and pressing the pedal with your toes.

Ground speed is proportionate to how far the pedal is pressed. For maximum ground speed, you must fully press traction pedal while throttle is in the FAST position. Maximum speed forward is as follows:

  • Model No. 31900 and 31901: 21 km/h (13 mph)

  • Model No. 31907 and 31909: 24 km/h (15 mph)

To get maximum power under heavy load or when ascending a hill, have the throttle in the FAST position while pressing traction pedal slightly to keep the engine speed (rpm) high. If the engine speed begins to decrease rapidly, release the traction pedal slightly to allow the engine speed to increase.

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Tilt-Steering Lever

To tilt the steering wheel toward you, press the tilt-steering lever (Figure 22) down and pull the steering tower toward you. Release the lever when the steering tower is at a position that allows you to comfortably handle the steering wheel.

Parking Brake

Whenever you shut off the engine, engage the parking brake (Figure 16) to prevent the machine from accidentally moving.

  • Engage the parking brake: Pull the handle up to the ENGAGED position.

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  • Disengage the parking brake: Use your thumb to push down the button on the top of handle and lower the handle down to the DISENGAGED position.

    Note: If the handle is not completely lowered, the machine shuts off when you engage the traction pedal.

Console

Refer to the following sections for a description of the console controls (Figure 24).

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Attachment Lift Switch

The attachment lift switch raises the attachment to the highest position (i.e., the TRANSPORT position) and lowers the attachment to the lowest position (i.e., the OPERATING) position.

  • Raise the attachment: Press the rear of the switch.

  • Lower the attachment: Press the front of the switch.

Raise the attachment to the TRANSPORT position whenever you transport the machine between locations. Lower the attachment to the OPERATING position whenever you are not using the machine.

PTO Switch

  • Engage the PTO: Pull up on the switch.

  • Disengage the PTO: Push the switch down.

The only time you should engage the PTO is when the PTO attachment is in the OPERATING position (lowered to the ground with the driveshaft connected) and you are ready to begin operation.

Note: If you leave the operator’s seat while the PTO switch is in the ON position, the machine will automatically shut off the engine; refer to Resetting the PTO Function.

Key Switch

The key switch has 3 positions: OFF, ON/PREHEAT, and START.

Use the switch to start or shut off the engine [refer to Starting the Engine or Shutting Off the Engine] or to review the display-screen information [refer to Understanding the Display-Screen Information].

Throttle Control

The throttle control adjusts the engine speed.

  • Increase the engine speed: Move the lever forward.

  • Decrease the engine speed: Move the lever rearward.

Glow-Plug Switch

Use the glow-plug switch to help start a cold engine.

Display Screen

The display screen shows information about your machine, such as the operating status, various diagnostics, and other information.

Refer to Understanding the Display-Screen Information for more display-screen information.

Display Screen Button

Cab Controls

Machines Equipped with a Cab
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Windshield-Wiper Switch

Use the switch (Figure 25) to turn the windshield wipers on or off.

Fan-Control Knob

Rotate the fan-control knob (Figure 25) to regulate the speed of the fan.

Light Switch

Press the switch (Figure 25) to turn the dome light on or off.

Temperature-Control Knob

Rotate the temperature-control knob (Figure 25) to regulate the air temperature in the cab.

Air-Conditioning Switch

Use this switch (Figure 25) to turn the air conditioning on or off. Use the fan-control knob to control the air-conditioning.

Open the recirculation vents (Figure 25) when the air conditioning is on.

Note: Specifications and design are subject to change without notice.

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DescriptionFigure 26 referenceDimension or Weight
Height with roll bar raised D200 cm (79 inches)
Height with roll bar loweredC111 cm (44 inches)
Height with cabH226 cm (89 inches)
Overall length (rear weights equipped) GMaximum of 332 cm (131 inches)
Overall length (no rear weights equipped)FMaximum of 312 cm (123 inches)
Overall widthBRefer to Width Specifications.
Wheel-base lengthE131 cm (51-1/2 inches)
Front-wheel tread widthA107 cm (42 inches)
Rear-wheel tread width 104 cm (41 inches)
Ground clearance 21 cm (8-5/16 inches)
Net weight (Model No. 31900) 781 kg (1,751 lb)
Net weight (Model No. 31901) 792 kg (1,747 lb)
Net weight (Model No. 31907) 836 kg (1,843 lb)
Net weight (Model No. 31909) 1,106 kg (2,439 lb)

Width Specifications

Refer to the following table for width measurements per your equipped cutting unit:

Cutting UnitWidth
Model No. 31970198 cm (78 inches)
Model No. 31971168 cm (66 inches)
Model No. 31972228 cm (90 inches)
Model No. 31973198 cm (78 inches)
Model No. 31974158 cm (62 inches)
Model No. 31975188 cm (74 inches)
Model No. 02835 (Flail)218 cm (86 inches)

Attachments/Accessories

A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or authorized Toro distributor or go to www.Toro.com for a list of all approved attachments and accessories.

To ensure optimum performance, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty

Operation

Before Operation

Before Operation Safety

General Safety

  • Never allow children or untrained people to operate or service the machine. Local regulations may restrict the age of the operator. The owner is responsible for training all operators and mechanics.

  • Become familiar with the safe operation of the equipment, operator controls, and safety signs.

  • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

  • Know how to stop the machine and shut off the engine quickly.

  • Check that operator-presence controls, safety switches, and guards are attached and functioning properly. Do not operate the machine unless they are functioning properly.

  • Before mowing, always inspect the machine to ensure that the blades, blade bolts, and cutting assemblies are in good working condition. Replace worn or damaged blades and bolts in sets to preserve balance.

  • Inspect the area where you will use the machine and remove all objects that the machine could throw.

Fuel Safety

  • Use extreme care in handling fuel. It is flammable and its vapors are explosive.

  • Extinguish all cigarettes, cigars, pipes, and other sources of ignition.

  • Use only an approved fuel container.

  • Do not remove the fuel cap or fill the fuel tank while the engine is running or hot.

  • Do not add or drain fuel in an enclosed space.

  • Do not store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or other appliance.

  • If you spill fuel, do not attempt to start the engine; avoid creating any source of ignition until the fuel vapors have dissipated.

Checking the Machine Daily

Check the following machine systems each day before operating the machine:

Checking the Tire Air Pressure

Maintenance Service IntervalMaintenance Procedure
Before each use or daily
  • Check the air pressure in the tires.
    • Tire air pressure specification (2-wheel-drive machines):

      • Front tires: 138 kPa (20 psi)

      • Rear tires: 193 kPa (28 psi)

    • Tire air pressure specification (4-wheel-drive machines): 138 kPa (20 psi)

    Danger

    Low tire pressure decreases machine side-hill stability. This could cause a rollover, which may result in personal injury or death.

    Do not underinflate the tires.

    Check the air pressure in the front and rear tires. Add or remove air as needed to set the air pressure in the tires to the tire air pressure specification.

    Important: Maintain pressure in all tires to ensure a good quality of cut and proper machine performance.Check the air pressure in all the tires before operating the machine.

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    Adding Fuel

    Fuel Specification

    Important: Use only low sulphur or ultra-low sulphur diesel fuel.Failure to observe the following cautions may damage the engine.

    • Never use kerosene or gasoline instead of diesel fuel.

    • Never mix kerosene or used engine oil with the diesel fuel.

    • Never keep fuel in containers with zinc plating on the inside.

    • Do not use fuel additives.

    • Use only clean, fresh diesel fuel or biodiesel fuels.

    • Purchase fuel in quantities that you can use within 180 days to ensure fuel freshness.

    Petroleum Diesel

    Cetane rating: 40 or higher

    Sulfur content: Low sulphur (<500 ppm) or ultra-low sulfur (<15 ppm)

    Use summer-grade diesel fuel (No. 2-D) at temperatures above -7°C (20°F) and winter-grade fuel (No. 1-D or No. 1-D/2-D blend) below that temperature.

    Note: Use of winter-grade fuel at lower temperatures provides lower flash point and cold flow characteristics which eases starting and reduces fuel filter plugging.Using summer-grade fuel above -7°C (20°F) contributes toward longer fuel pump life and increased power compared to winter-grade fuel.

    Biodiesel

    This machine can also use a biodiesel blended fuel of up to B20 (20% biodiesel, 80% petroleum diesel).

    Sulfur content: Ultra-low sulfur (<15 ppm)

    Biodiesel fuel specification: ASTM D6751 or EN14214

    Blended fuel specification: ASTM D975, EN590, or JIS K2204

    Important: The petroleum diesel portion must be ultra-low sulfur.

    Observe the following precautions:

    • Biodiesel blends may damage painted surfaces.

    • Use B5 (biodiesel content of 5%) or lesser blends in cold weather.

    • Monitor seals, hoses, gaskets in contact with fuel as they may degrade over time.

    • Fuel filter plugging may occur for period after converting to biodiesel blends.

    • Contact your authorized Toro distributor if you wish for more information on biodiesel.

    Filling the Fuel Tank

    Fuel tank capacity: 45 L (12 US gallons)

    Note: If possible, fill the fuel tank after each use; this minimizes condensation buildup inside the fuel tank.

    1. Park the machine on a level surface (Figure 28), engage the parking brake, shut off the engine, and remove the key

    2. Unscrew the cap from the fuel tank.

    3. Fill the fuel tank with the specified fuel until the fuel-gauge dial indicates that the tank is full.

    4. Screw the cap onto the fuel tank.

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    Checking the Safety-Interlock System

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the interlock system.
  • The purpose of the safety-interlock system is to prevent the engine from cranking or starting unless the traction pedal is in neutral and the PTO switch is in the OFF position. In addition, the engine should stop when the following occurs:

    • The PTO switch is set to the ON position and you are not in the seat.

    • The traction pedal is pressed but you are not in the seat.

    • The traction pedal is pressed and the parking brake is engaged.

    Caution

    If the safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury.

    • Do not tamper with the interlock switches.

    • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine.

    1. Move the PTO switch to OFF position and remove your foot from traction pedal.

    2. Rotate the key switch to the START position. If the engine cranks, proceed to step 3.

      Note: If engine does not crank, there may be a malfunction in the safety-interlock system.

    3. With the engine running, rise from the seat and set the PTO switch to the ON position . The engine should shut off within 2 seconds. If the engine shuts off, proceed to step 4.

      Important: If engine does not shut off, there is a malfunction in the safety-interlock system. Refer to your authorized Toro distributor.

    4. With the engine running and the PTO switch set to the OFF position, raise off the seat and press the traction pedal. The engine should shut off within 2 seconds. If engine shuts off, proceed to step 5.

      Important: If engine does not shut off, there is a malfunction in the safety-interlock system. Refer to your authorized Toro distributor.

    5. Engage the parking brake. With the engine running and the PTO switch set to the ON position, press the traction pedal. The engine should shut off within 2 seconds. If engine shuts off, the switch is operating correctly; the interlock system is ready for machine operation.

      Important: If engine does not shut off, there is a malfunction in the safety-interlock system. Refer to your authorized Toro distributor.

    Adjusting the Roll Bar

    Warning

    A rollover can cause injury or death.

    • Keep the roll bar in the raised locked position.

    • Use the seat belt.

    Warning

    There is no rollover protection when the roll bar is lowered.

    • Do not operate the machine on uneven ground or on a hill side with a lowered roll bar.

    • Lower the roll bar only when absolutely necessary.

    • Do not wear the seat belt when the roll bar is lowered.

    • Drive slowly and carefully.

    • Raise the roll bar as soon as clearance permits.

    • Check carefully for overhead clearances (e.g., branches, doorways, or electrical wires) before driving under any objects and do not contact them.

    Lowering the Roll Bar

    Important: Lower the roll bar only when absolutely necessary.

    1. Park the machine on a level surface, engage the parking brake, lower the cutting unit, shut off the engine, and remove the key.

    2. Remove the cotter pins and pins from the roll bar (Figure 29).

    3. Lower the roll bar and secure it in place with the pins and cotter pins (Figure 29).

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    Raising the Roll Bar

    1. Park the machine on a level surface, engage the parking brake, lower the cutting unit, shut off the engine, and remove the key from the key switch.

    2. Remove the cotter pins and pins from the roll bar (Figure 30).

    3. Raise the roll bar and secure it in place with the pins and cotter pins (Figure 30).

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    Understanding the Display-Screen Information

    The display screen shows information about your machine, such as the operating status, various diagnostics, and other information about the machine. There are two main-information screens (Figure 31) and a main menu screen.

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    Using the Display-Screen Button

    Use the display-screen button (shown in Figure 32) to toggle between the 2 main-information screens and to access the main menu.

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    • To access the main menu: Hold down the display-screen button until the menu items appear on the screen.

    • To select a menu item: Quickly press the display-screen button twice.

      You can also perform this action to toggle an option (e.g., toggling between English or metric units in the SETTINGS screen).

    • To return to the previous screen (e.g., returning to the MAIN MENU screen from the SETTINGS screen, or returning to the main-information screens from the MAIN MENU screen): Hold down the display-screen button until the previous screen appears.

    • To scroll down to the next menu item: Press the display-screen button once.

    Understanding the Menu Items

    Main Menu

    Menu ItemDescription
    FAULTSContains a list of the recent machine faults. Refer to the Service Manual or your authorized Toro distributor for more information on the FAULTS menu.
    SERVICEContains information on the machine such as hours of use and counts. Refer to the Service table.
    DIAGNOSTICSLists various states and data that the machine currently has. You can use this information to troubleshoot certain issues, as it quickly tells you which machine controls are on/off and lists control levels (e.g., sensor values).
    SETTINGSAllows you to customize and modify configuration variables on the InfoCenter display. Refer to the Settings table.
    ABOUTLists the model number, serial number, and software version of your machine. Refer to the About table.

    Service

    Menu ItemDescription
    HOURSLists the total number of hours that the key, engine, and PTO have been on.
    COUNTSLists the number of engine and PTO starts.

    Settings

    Menu ItemDescription
    UNITSControls the units used on the display screen. The menu choices are English or metric.
    LANGUAGEControls the language used on the display screen.
    BACKLIGHTControls the brightness of the display screen.
    CONTRASTControls the contrast of the display screen.
    PROTECTED MENUSAllows a person authorized by your company with the PIN code to access protected menus (i.e., the slope sensor setting and the ability to clear the fault log).
    PROTECT SETTINGSWhen disabled, you can access protected settings without entering the PIN code.
    PTO SOFTSTART:Enables or disables the PTO Softstart feature. This feature is enabled by default.
    SLOPE SENSOR INSTALLEDShows whether or not a slope sensor is installed. If a slope sensor is removed from the machine, this setting can be disabled to clear the slope-sensor communication fault.

    Diagnostics

    Menu ItemDescription
    DECKIndicates if the cutting unit inputs/outputs are active.
    PTOIndicates if the PTO is active.
    ENGINEIndicates if the engine inputs/outputs are active.

    About

    Menu ItemDescription
    MODELLists the model number of the machine.
    SNLists the serial number of the machine.
    S/W REVLists the software revision of the master controller.

    Understanding the Display-Screen Icons

    Refer to the following table for a description of each display-screen icon:

    Display-Screen Icons

    GraphicEngine speed
    GraphicEngine fault
    GraphicHour meter
    GraphicAir intake heater is active
    GraphicOperator must sit in seat
    GraphicParking brake is engaged
    GraphicNeutral
    GraphicPTO is engaged
    GraphicPTO is disabled
    GraphicIndicates when the cutting units are being lowered
    GraphicIndicates when the cutting units are being raised
    GraphicPIN passcode
    GraphicBattery
    GraphicCoolant temperature

    Accessing the Protected Menus

    Note: The factory default PIN code for you machine is “1234”.

    If you changed the PIN code and forgot the code, contact your authorized Toro distributor for assistance.

    1. Select the SETTINGS option.

    2. Select the PROTECTED MENUS option.

    3. To enter the PIN code, press the display-screen button until the appropriate digit appears, then quickly press the display-screen button twice to move to the next digit.

    4. After all four digits are entered, press the display button once to submit the PIN code.

      If the PIN code has been entered correctly, the PIN icon will appear at the top right of all menu screens.

    During Operation

    During Operation Safety

    General Safety

    • The owner/operator can prevent and is responsible for accidents that may cause personal injury or property damage.

    • Wear appropriate clothing, including eye protection; long pants; substantial, slip-resistant footwear; and hearing protection. Tie back long hair and do not wear loose clothing or loose jewelry.

    • Do not operate the machine while ill, tired, or under the influence of alcohol or drugs.

    • Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

    • Before you start the engine, ensure that all drives are in neutral, the parking brake is engaged, and you are in the operating position.

    • Do not carry passengers on the machine and keep bystanders and children out of the operating area.

    • Operate the machine only in good visibility to avoid holes or hidden hazards.

    • Avoid mowing on wet grass. Reduced traction could cause the machine to slide.

    • Keep your hands and feet away from rotating parts. Keep clear of the discharge opening.

    • Look behind and down before backing up to be sure of a clear path.

    • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure your vision.

    • Stop the blades whenever you are not mowing.

    • Stop the machine, remove the key, and wait for all moving parts to stop before inspecting the attachment after striking an object or if there is an abnormal vibration in the machine. Make all necessary repairs before resuming operation.

    • Slow down and use caution when making turns and crossing roads and sidewalks with the machine. Always yield the right-of-way.

    • Disengage the drive to the cutting unit, shut off the engine, remove the key, and wait for all movement to stop before adjusting the height of cut (unless you can adjust it from the operating position).

    • Operate the engine only in well-ventilated areas. Exhaust gases contain carbon monoxide, which is lethal if inhaled.

    • Never leave a running machine unattended.

    • Before you leave the operator’s position, do the following:

      • Park the machine on a level surface.

      • Disengage the power takeoff and lower the attachments.

      • Engage the parking brake.

      • Shut off the engine and remove the key.

      • Wait for all movement to stop.

    • Operate the machine only in good visibility. Do not operate the machine when there is the risk of lightning.

    • Do not use the machine as a towing vehicle.

    • Use accessories, attachments, and replacement parts approved by Toro only.

    Rollover Protection System (ROPS) Safety

    • The ROPS is an integral and effective safety device.

    • Do not remove any of the ROPS components from the machine.

    • Ensure that the seat belt is attached to the machine.

    • Pull the belt strap over your lap and connect the belt to the buckle on the other side of the seat.

    • To disconnect the seat belt, hold the belt, press the buckle button to release the belt, and guide the belt into the auto-retract opening. Ensure that you can release the belt quickly in an emergency.

    • Check carefully for overhead obstructions and do not contact them.

    • Keep the ROPS in safe operating condition by thoroughly inspecting it periodically for damage and keeping all the mounting fasteners tight.

    • Replace damaged ROPS components. Do not repair or alter them.

    Additional ROPS Safety for Machines with a Cab or a Fixed Roll Bar

    • A cab installed by Toro is a roll bar.

    • Always wear your seat belt.

    Additional ROPS Safety for Machines with a Foldable Roll Bar

    • Keep a folding roll bar in the raised and locked position, and wear your seat belt when operating the machine with the roll bar in the raised position.

    • Lower a folding roll bar temporarily only when necessary. Do not wear the seat belt when the roll bar is folded down.

    • Be aware that there is no rollover protection when a folded roll bar is in the down position.

    • Check the area that you will be mowing and never fold down a folding roll bar in areas where there are slopes, drop-offs, or water.

    Slope Safety

    • Slopes are a major factor related to loss of control and rollover accidents, which can result in severe injury or death. You are responsible for safe slope operation. Operating the machine on any slope requires extra caution.

    • Evaluate the site conditions to determine if the slope is safe for machine operation, including surveying the site. Always use common sense and good judgment when performing this survey.

    • Review the slope instructions listed below for operating the machine on slopes and to determine whether you can operate the machine in the conditions on that day and at that site. Changes in the terrain can result in a change in slope operation for the machine.

    • Avoid starting, stopping, or turning the machine on slopes. Avoid making sudden changes in speed or direction. Make turns slowly and gradually.

    • Do not operate a machine under any conditions where traction, steering, or stability is in question.

    • Remove or mark obstructions such as ditches, holes, ruts, bumps, rocks, or other hidden hazards. Tall grass can hide obstructions. Uneven terrain could overturn the machine.

    • Be aware that operating the machine on wet grass, across slopes, or downhill may cause the machine to lose traction. Loss of traction to the drive wheels may result in sliding and a loss of braking and steering.

    • Use extreme caution when operating the machine near drop-offs, ditches, embankments, water hazards, or other hazards. The machine could suddenly roll over if a wheel goes over the edge or the edge caves in. Establish a safety area between the machine and any hazard.

    • Identify hazards at the base of the slope. If there are hazards, mow the slope with a pedestrian-controlled machine.

    • If possible, keep the cutting unit(s) lowered to the ground while operating on slopes. Raising the cutting unit(s) while operating on slopes can cause the machine to become unstable.

    • Use extreme caution with grass-collection systems or other attachments. These can change the stability of the machine and cause a loss of control.

    Starting the Engine

    1. Model 31900 and 31901 machines: Ensure that the fuel-valve lever is in the ON position; refer to Figure 55 in Servicing the Fuel Filter.

    2. Sit on the operator’s seat and fasten the seat belt.

    3. Ensure that the parking brake is engaged and the PTO is disengaged.

    4. Preheat the engine by rotating the key switch to the ON position.

    5. Press and hold the glow-plug switch for 10 seconds.

    6. Rotate the key to the START position, crank the engine for no longer than 15 seconds, and allow the key to return to the ON position.

      Note: If additional preheating is required, turn the key to the OFF position, then to the ON/PREHEAT position. Repeat this process as needed.

    7. Move the throttle to idle speed or partial throttle and run the engine until it warms up.

    Resetting the PTO Function

    Note: If you leave the operator’s seat while the PTO switch is in the ON position, the machine will automatically shut off the engine.

    Perform the following to reset the PTO function:

    1. Push down the PTO switch.

    2. Start the engine; refer to Starting the Engine.

    3. Pull up the PTO switch.

    Shutting Off the Engine

    1. Use the throttle control to lower the engine speed.

    2. Move the PTO switch to the OFF position.

    3. Rotate the key switch to the OFF position and remove the key from the switch.

    After Operation

    After Operation Safety

    General Safety

    • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

    • Clean grass and debris from the cutting units, mufflers, and engine compartment to help prevent fires. Clean up oil or fuel spills.

    • If the cutting units are in the transport position, use the positive mechanical lock (if available) before you leave the machine unattended.

    • Allow the engine to cool before storing the machine in any enclosure.

    • Remove the key and shut off the fuel (if equipped) before storing or hauling the machine.

    • Never store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or on other appliances.

    • Maintain and clean the seat belt(s) as necessary

    Servicing the Cutting Unit

    You can rotate the cutting unit from the TRANSPORT position (A in Figure 33) to the SERVICE position (B in Figure 33). Use the SERVICE position to maintain the cutting unit blades or clean underneath the cutting unit; refer to your cutting unit Operator’s Manual.

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    Rotating the Cutting Unit to the

    Perform this procedure to rotate the cutting unit from the TRANSPORT position to the SERVICE position.

    Warning

    If you leave the key in the switch, someone could accidently start the engine and seriously injure you or other bystanders.

    Remove the key from the switch and do not start the engine with the cutting unit in the SERVICE position.

    1. Park the machine a level surface.

    2. Press the lift switch to raise the cutting unit to the TRANSPORT position.

    3. Engage the parking brake, shut off the engine, and remove the key.

    4. Remove the pins from the height-of-cut plates (Figure 34).

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    5. Rotate the cutting unit (Figure 35) so that the latch engages with the tie-down bracket (Figure 36).

      Warning

      The cutting unit is heavy.

      Use assistance when you lift the cutting unit.

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    Rotating the Cutting Unit to the

    Perform this procedure to rotate the cutting unit from the SERVICE position to the TRANSPORT position.

    1. Release the cutting-unit latch from the tie-down bracket (Figure 37) by slightly rotating the cutting unit slightly forward (refer to Figure 35) and pulling the latch handle forward.

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    2. Slowly rotate the cutting unit down until the pin contacts the lift-arm plate (A in Figure 38).

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    3. Use your foot to press down on the cutting unit, then pull out on the pin (B in Figure 38) to let the cutting unit settle into the TRANSPORT position.

    4. Insert the height-of-cut pins through the height-of-cut plates and chains.

    Towing the Machine

    If it becomes necessary to tow or push the machine, the traction pump must be set to bypass hydraulic fluid. Move the machine at a speed below 4.8 kph (3 mph), and for a very short distance.

    Important: If towing limits are exceeded, severe damage to the hydraulic pump may occur.If the machine needs to be moved more than a short distance, the machine should be transported on a trailer.

    1. Access the bypass valve from under the machine.

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    2. Use an 18 mm (11/16 inch) box-end wrench to loosen the bypass valve, then open the valve 3 revolutions maximum.

      Important: Do not start or run the engine when the valve is set to the bypass position.

    3. After towing and before starting the engine, tighten the bypass valve to 20 N·m (15 ft-lb).

    Hauling the Machine

    • Use care when loading or unloading the machine into a trailer or a truck.

    • Use full-width ramps for loading the machine into a trailer or a truck.

    • Tie the machine down securely.

    • Remove the key before storing or hauling the machine.

    Maintenance

    Note: Determine the left and right sides of the machine from the normal operating position.

    Note: Download a free copy of the electrical or hydraulic schematic by visiting www.Toro.com and searching for your machine from the Manuals link on the home page.

    Maintenance Safety

    • Before you leave the operator’s position, do the following:

      • Park the machine on a level surface.

      • Disengage the power takeoff and lower the attachments.

      • Engage the parking brake.

      • Shut off the engine and remove the key.

      • Wait for all movement to stop.

    • If you leave the key in the switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the switch before you perform any maintenance.

    • Allow machine components to cool before performing maintenance.

    • If the cutting units are in the transport position, use the positive mechanical lock (if equipped) before you leave the machine unattended.

    • If possible, do not perform maintenance while the engine is running. Keep away from moving parts.

    • Support the machine with jack stands whenever you work under the machine.

    • Carefully release pressure from components with stored energy.

    • Keep all parts of the machine in good working condition and all hardware tightened, especially blade-attachment hardware.

    • Replace all worn or damaged decals.

    • To ensure safe, optimal performance of the machine, use only genuine Toro replacement parts. Replacement parts made by other manufacturers could be dangerous, and such use could void the product warranty.

    Recommended Maintenance Schedule(s)

    Maintenance Service IntervalMaintenance Procedure
    After the first hour
  • Torque the wheel-lug nuts.
  • After the first 10 hours
  • Torque the wheel-lug nuts.
  • Check the alternator-belt tension.
  • After the first 50 hours
  • Check the alternator-belt tension.
  • After the first 1000 hours
  • Change the hydraulic fluid and hydraulic filter.
  • Before each use or daily
  • Check the air pressure in the tires.
  • Check the interlock system.
  • Grease the PTO driveshaft (cross-bearings and telescoping splines).
  • Check the engine-oil level.
  • Check the air-cleaner restriction indicator and replace the filter elements if necessary.
  • Check the cooling system and the coolant level.
  • Remove debris from the engine area, oil cooler, fuel cooler, and radiator (clean them more frequently in dirty or dusty conditions).
  • Check the hydraulic-fluid level.
  • Every 50 hours
  • Grease the bearings and bushings.
  • Drain water or other contaminants from the fuel/water separator.
  • Check the battery-cable connections.
  • Check the battery condition; clean the battery if needed.
  • Check the battery-electrolyte level when in operation (if applicable).
  • Check the hood-air-intake screen.
  • Check and clean the hood-air-intake screen.
  • Every 100 hours
  • Check the alternator-belt condition and tension.
  • Check the traction-belt condition.
  • Every 200 hours
  • Torque the wheel-lug nuts.
  • Inspect the cooling-system hoses.
  • Adjust the PTO-clutch gap.
  • Every 250 hours
  • Change the engine oil and filter (when the machine is used in dirty or dusty conditions) [Model 31900 and 31901 only].
  • Change the air-cleaner element.
  • Check and clean the cooling fins (clean them more frequently in dirty or dusty conditions).
  • Every 400 hours
  • Replace the fuel/water separator.
  • Replace the fuel filter.
  • Inspect the fuel lines and connections.
  • Check the parking brake and adjust if needed.
  • Clean the cab air filters; replace them if they are torn or excessively dirty.
  • Every 500 hours
  • Change the engine oil and filter.
  • Every 800 hours
  • Change the hydraulic filter (if you are not using the recommended hydraulic fluid or have ever filled the hydraulic tank with alternative fluid).
  • Change the hydraulic fluid (if you are not using the recommended hydraulic fluid or have ever filled the hydraulic tank with alternative fluid).
  • Every 1,000 hours
  • Change the hydraulic filter (if you are using the recommended hydraulic fluid).
  • Every 1,500 hours
  • Change the engine coolant
  • Every 2,000 hours
  • Change the hydraulic fluid (if you are using the recommended hydraulic fluid).
  • Monthly
  • Check the battery-electrolyte level when the machine is in storage (if applicable).
  • Yearly
  • Drain and clean the fuel tank
  • Every 2 years
  • Replace moving hoses.
  • Important: Refer to your engine owner’s manual for additional maintenance procedures.

    Pre-Maintenance Procedures

    Raising the Machine

    Danger

    Mechanical or hydraulic jacks may fail to support the machine and cause a serious injury.

    • Use jack stands to support the raised machine.

    • Use only mechanical or hydraulic jacks to lift the machine.

    Raising the Front of the Machine

    Important: Ensure that no cables or hydraulic components are between the jack and the frame.

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    1. Chock the 2 rear wheels with chocks to prevent the machine from moving.

    2. Position the jack securely under the desired jacking point.

    3. After raising the front of the machine, use an appropriate jack stand under the machine frame to support the machine.

    Raising the Rear of the Machine

    Important: Ensure that no cables or hydraulic components are between the jack and the frame.

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    1. Chock the 2 front wheels with chocks to prevent the machine from moving.

    2. Position the jack securely under the desired jacking point.

      Important: 4-wheel-drive machines have hydraulic lines that run close to the frame. Ensure that your jack is positioned so that the hydraulic lines are not damaged while the machine is raised.

    3. After raising the front of the machine, use an appropriate jack stand under the machine frame to support the machine.

    Raising the Hood

    1. Release the straps from each side of the machine (Figure 42).

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    2. Raise the hood (Figure 42).

    Note: If your machine is equipped with a hood lock, use a key to unlock and raise the hood.

    Lubrication

    Greasing the Bearings and Bushings

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Grease the PTO driveshaft (cross-bearings and telescoping splines).
  • Every 50 hours
  • Grease the bearings and bushings.
  • The machine has grease fittings that you must lubricate regularly with No. 2 lithium grease.

    Important: Lubricate the machine immediately after every washing.

    • Idler arm (Figure 43)

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    • PTO driveshaft (Figure 44)

      Important: Grease the driveshaft before each use or daily.

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    • Axle pivot pin (Figure 45)

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    • Front of the machine (Figure 46):

      • Attachment pivot hubs (2)

      • Lift-cylinder bushings (2)

      • Lift-arm pivot pins (2)

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    • Rear of the machine (Figure 47):

      • Hydraulic-cylinder ball joint (2)

      • Axle spindle hubs (2)

      • Tie-rod ends (2)

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    Engine Maintenance

    Engine Safety

    • Shut off the engine and remove the key before checking the oil or adding oil to the crankcase.

    • Do not change the governor speed or overspeed the engine.

    Servicing the Engine Oil

    Understanding the Engine-Oil Specifications

    Oil Type: Use high-quality, low-ash engine oil that meets or exceeds the following specifications:

    • API service category CJ-4 or higher

    • ACEA service category E6

    • JASO service category DH-2

    Crankcase Capacity: Approximately 6.2 L (6.5 US qt) with the filter.

    Viscosity: Use the following engine oil viscosity grade:

    • Preferred oil: SAE 15W-40 (above 0°F)

    • Alternate oil: SAE 10W-30 or 5W-30 (all temperatures)

    Toro Premium Engine Oil is available from your authorized Toro distributor in either 15W-40 or 10W-30 viscosity grades.

    Checking the Engine-Oil Level

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the engine-oil level.
  • The best time to check the engine oil is when the engine is cool before it has been started for the day. If the engine has already been run, allow the oil to drain back down to the sump for at least 10 minutes before checking.

    If the oil level is at or below the Add mark on the dipstick, add oil to bring the oil level to the Full mark. Do not overfill the engine with oil.

    Important: Check the engine oil daily. If the engine-oil level is above the Full mark on the dipstick, the engine oil may be diluted with fuel. If the engine-oil level is above the Full mark, change the engine oil.

    Important: Keep the engine-oil level between the upper and lower limits on the dipstick. The engine may fail if you run it with too much or too little oil.

    1. Raise the hood; refer to Raising the Hood.

    2. Check the engine-oil level; refer to Figure 48.

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    Changing the Engine Oil and Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 250 hours
  • Change the engine oil and filter (when the machine is used in dirty or dusty conditions) [Model 31900 and 31901 only].
  • Every 500 hours
  • Change the engine oil and filter.
    1. Start the engine and let it run 5 minutes to allow the oil to warm up.

    2. With the machine parked on a level surface, engage the parking brake, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Change the engine oil as shown in Figure 49.

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    4. Change the engine-oil filter as shown in Figure 50.

      Note: Ensure that the oil-filter gasket touches the engine, and then an extra 3/4 turn is completed.

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    Servicing the Air Cleaner

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the air-cleaner restriction indicator and replace the filter elements if necessary.
  • Every 250 hours
  • Change the air-cleaner element.
  • Check the air-cleaner body for damage, which could cause an air leak. Replace the body if it is damaged. Check the intake system for leaks, damage, or loose hose clamps

    Service the air-cleaner element only when the restriction indicator (Figure 51) requires it. Changing the air cleaner element before it is necessary increases the chance of dirt entering the engine when you remove the element.

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    Important: Ensure that the cover is seated correctly and seals with the air-cleaner body and that the latches are closed properly.

    1. Replace the air filter element (Figure 52).

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      Important: Do not clean a used element; cleaning it can damage the filter media.

    2. Reset the restriction indicator (Figure 51) if it shows red.

    Fuel System Maintenance

    Danger

    Under certain conditions, diesel fuel and fuel vapors are highly flammable and explosive. A fire or explosion from fuel can burn you and others and can cause property damage.

    Never smoke when handling fuel, and stay away from an open flame or where a spark may ignite fuel fumes.

    Draining Water from the Fuel/Water Separator

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Drain water or other contaminants from the fuel/water separator.
  • Drain water from the fuel/water separator as shown in Figure 53.

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    Servicing the Fuel/Water Separator

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Replace the fuel/water separator.
  • Replace the fuel/water separator as shown in Figure 53.

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    Servicing the Fuel Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Replace the fuel filter.
  • Servicing the Fuel Filter

    Model 31900 and 31901 Machines
    1. Rotate the fuel-valve lever to the OFF position (Figure 55).

    2. Clean the area around the fuel-filter head (Figure 55).

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    3. Remove the filter and clean the filter head mounting surface (Figure 55).

    4. Lubricate the filter gasket with clean lubricating engine oil; refer to the engine owner's manual for additional information.

    5. Install the dry filter canister by hand until the gasket contacts the filter head, then rotate it an additional 1/2 turn.

    6. Rotate the fuel-valve lever to the ON position (Figure 55).

    7. Start the engine and check for fuel leaks around the filter head.

    Servicing the Fuel Filter

    Model 31907 and 31909
    1. Clean the area around the fuel-filter head (Figure 56).

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    2. Remove the filter and clean the filter head mounting surface (Figure 56).

    3. Lubricate the filter gasket with clean lubricating engine oil; refer to the engine owner's manual for additional information.

    4. Install the dry filter canister by hand until the gasket contacts the filter head, then rotate it an additional 1/2 turn.

    5. Start the engine and check for fuel leaks around the filter head.

    Cleaning the Fuel Tank

    Maintenance Service IntervalMaintenance Procedure
    Yearly
  • Drain and clean the fuel tank
  • Drain and clean tank if fuel system becomes contaminated or if you store the machine for an extended period. Use clean diesel fuel to flush out the tank.

    Inspecting the Fuel Lines and Connections

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Inspect the fuel lines and connections.
  • Inspect the fuel lines for deterioration, damage, or loose connections.

    Electrical System Maintenance

    Electrical System Safety

    • Disconnect the battery before repairing the machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last.

    • Charge the battery in an open, well-ventilated area, away from sparks and flames. Unplug the charger before connecting or disconnecting the battery. Wear protective clothing and use insulated tools.

    Accessing the Battery

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Check the battery-cable connections.
  • The battery is adjacent to the fuel tank on the left side of the machine. To access the battery, raise the hood, unscrew the thumb screw that secures the cover over the battery, and remove the cover (Figure 57).

    Note: The screw is retained with a locking washer.

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    Disconnecting the Battery

    Warning

    Battery terminals or metal tools could short against metal components, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.

    • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the machine.

    • Do not allow metal tools to short between the battery terminals and metal parts of the machine.

    Warning

    Incorrect battery cable routing could damage the machine and cables, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.

    Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable.

    1. Remove the negative battery cable from the battery post (Figure 58).

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    2. Lift the insulator and remove the positive battery cable from the battery post (Figure 58).

    Connecting the Battery

    Warning

    Incorrect battery cable routing could damage the machine and cables, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.

    Always connect the positive (red) battery cable before connecting the negative (black) cable.

    1. Connect the positive cable to the battery and tighten the battery-clamp nut (Figure 59).

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    2. Connect the negative cable to the battery and tighten the battery-clamp nut (Figure 59).

      Important: Ensure that the cable-clamp fasteners do not interfere with the fuel tank.

    Removing or Installing the Battery

    A retainer (Figure 60) holds the battery in the tray. Loosen the retainer hardware to remove the battery; tighten it when installing the battery.

    Note: To access the battery, refer to Accessing the Battery. Replace the cover when you install the battery.

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    Checking the Battery Condition

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Check the battery condition; clean the battery if needed.
  • Check the battery-electrolyte level when in operation (if applicable).
  • Important: Before welding on the machine, disconnect the negative cable from the battery to prevent damage to the electrical system.

    Check the battery condition weekly or after every 50 hours of operation. Keep the terminals and the entire battery case clean, as a dirty battery will discharge slowly.

    1. Access the battery; refer to Accessing the Battery.

    2. Remove the rubber insulator from the positive terminal and inspect the battery. If the battery is dirty, do the following steps:

      1. Wash the entire case with a solution of baking soda and water.

      2. Coat both battery posts and cable connectors with Grafo 112X (skin-over) grease (Toro Part No. 505-47) to prevent corrosion.

      3. Slide the rubber insulator over the positive terminal.

      4. Close the battery cover.

    Locating the Fuses

    Locating the Traction-Unit Fuses

    Remove the console cover to access the traction-unit fuses (Figure 61).

    Note: The traction-unit fuse decal is located on the other side of the console cover.

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    Refer to the Traction-Unit Fuse Block table for a description of each fuse on the traction-unit fuse block (Figure 62):

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    Traction-Unit Fuse Block

    AB
    1Cab (10 A)Display-screen power (15 A)
    2Open slotKey run input for the display-screen controller (10 A)
    3Air ride seat (15 A)Start circuit (15 A)
    4USB port, hour meter, telematics, expansion port (20 A)Ignition switch power (20 A)

    Locating the Cab Fuses

    The cab fuses are located above the passenger seat. Access the fuses by removing the fuse-box cover (Figure 63).

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    Refer to the Cab Fuse Block table for a description of each fuse on the cab fuse block (Figure 64):

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    Cab Fuse Block

    A
    1Condenser fan; Air-conditioning clutch (25 A)
    2Windshield washer (20 A)
    3Fan and interior light (40 A)
    4Open slot

    Drive System Maintenance

    Torquing the Wheel-Lug Nuts

    Maintenance Service IntervalMaintenance Procedure
    After the first hour
  • Torque the wheel-lug nuts.
  • After the first 10 hours
  • Torque the wheel-lug nuts.
  • Every 200 hours
  • Torque the wheel-lug nuts.
  • Wheel-lug nut torque specification: 102 to 108 N∙m (75 to 80 ft-lb)

    Torque the lug nuts at the front and rear wheels (4-wheel-drive machines only) in the pattern as shown in Figure 65 and Figure 66 to the specified torque.

    • Front wheels: refer to Figure 65

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    • Rear wheels (4-wheel-drive machines only): refer to Figure 66

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    Aligning the PTO Driveshaft

    If you separate the PTO-driveshaft telescoping end the from the clutch end, ensure that the arrows align (Figure 67) when you install the telescoping end.

    Important: If the arrows on the driveshaft are not aligned, severe imbalance may occur in the driveline system.

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    Cooling System Maintenance

    Cooling System Safety

    • Swallowing engine coolant can cause poisoning; keep out of reach from children and pets.

    • Discharge of hot, pressurized coolant or touching a hot radiator and surrounding parts can cause severe burns.

      • Always allow the engine to cool at least 15 minutes before removing the radiator cap.

      • Use a rag when opening the radiator cap, and open the cap slowly to allow steam to escape.

    • Do not operate the machine without the covers in place.

    • Keep your fingers, hands and clothing clear of rotating fan and drive belt.

    Coolant Specifications

    The engine coolant must conform to the following specifications:

    • JIS K-2234 (Japanese industrial standard)

    • SAE J814 (engine coolants)

    • ASTM D3306 (specification for ethylene-glycol base engine coolant)

    Use one of the following coolant blends:

    • Glycol-based pre-diluted coolant (50/50 blend)

    • Glycol-based coolant mixed with distilled water (50/50 blend)

    • Glycol-based coolant mixed with good quality water (50/50 blend)

      • Total hardness <170 ppm

      • Chloride <40 ppm (CI)

      • Sulfates <100 ppm (SO4)

    Checking the Cooling System and Coolant Level

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the cooling system and the coolant level.
  • Remove debris from the engine area, oil cooler, fuel cooler, and radiator (clean them more frequently in dirty or dusty conditions).
  • Every 1,500 hours
  • Change the engine coolant
  • When the engine is cold, the coolant level should be no higher than the COLD mark on the side of the expansion tank (Figure 68). When the engine is warm, the coolant level should be no higher than the FULL (HOT) mark.

    If the coolant is above the COLD mark when the engine is cold, it may leak out of the tank when the engine gets hot during operation.

    1. When the engine is cold, check the level of the coolant in the expansion tank.

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    2. If the coolant is not visible at the COLD mark or below when cold, remove the expansion-tank cap and add the recommended replacement coolant [refer to Coolant Specifications] as required to bring the level to the COLD mark.

      Important: Do not use water only or alcohol-based coolants.Do not fill past the COLD mark on the tank.

    3. Install the expansion-tank cap.

    Checking the Hood-Air-Intake Screen

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Check the hood-air-intake screen.
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    1. Raise the hood; refer to Raising the Hood.

    2. Use compressed air to clean the hood screen (shown in Figure 69). Direct the air out from the machine.

    Checking the Cooling Fins

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Check and clean the hood-air-intake screen.
  • Every 250 hours
  • Check and clean the cooling fins (clean them more frequently in dirty or dusty conditions).
    • Use compressed air to clean the radiator fins. Direct the air out from the machine (Figure 70).

      Important: Do not use water to clean the fins.

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    • Straighten any bent fins.

    Inspecting the Cooling-System Hoses

    Maintenance Service IntervalMaintenance Procedure
    Every 200 hours
  • Inspect the cooling-system hoses.
  • Inspect the cooling-system hoses for leaks, kinked lines, loose mounting supports, wear, loose fittings, weather deterioration, and chemical deterioration. Make all necessary repairs before operating the machine.

    Brake Maintenance

    Checking and Adjusting the Parking Brake

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Check the parking brake and adjust if needed.
  • Checking the Parking Brake

    1. Place jack stands under the front of the machine; refer to Raising the Front of the Machine.

    2. Remove the front wheels.

    3. Move the parking brake to the DISENGAGED position; refer to Parking Brake.

    4. Remove the brake drums (Figure 71) by hand.

      • If you feel resistance while removing the brake drums by hand, an adjustment is not needed.

      • If you do not feel resistance while removing the brake drums by hand, an adjustment is needed; refer to Adjusting the Parking Brake.

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    5. Install the front wheels and torque the lug nuts; refer to Torquing the Wheel-Lug Nuts.

    Adjusting the Parking Brake

    1. Chock the wheels.

    2. Ensure that the parking brake is disengaged.

    3. Locate the brake-cable mount (Figure 72) under the left side of the machine near the left wheel.

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    4. Loosen the top jam nuts so that a gap (3.2 mm [1/8 inch] to 4.8 mm [3/16 inch]) appears.

    5. Pull down on a cable until the top jam nut contacts the bracket.

    6. Tighten the bottom jam nut.

    7. Repeat steps 5 and 6 for the other cable.

    8. Check the parking brake; refer to Checking the Parking Brake.

    Belt Maintenance

    Checking the Alternator-Belt Tension

    Maintenance Service IntervalMaintenance Procedure
    After the first 10 hours
  • Check the alternator-belt tension.
  • After the first 50 hours
  • Check the alternator-belt tension.
  • Every 100 hours
  • Check the alternator-belt condition and tension.
  • Proper tension of the belt allows 10 mm (3/8 inch) of deflection when a force of 4.5 kg (10 lb) is applied on the belt midway between the pulleys.

    If the deflection is not 10 mm (3/8 inch), perform the following steps:

    1. Loosen the alternator-mounting bolt (Figure 64).

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    2. Increase or decrease the alternator-belt tension and tighten the bolt.

    3. Check the deflection of the belt again to ensure that the tension is correct.

    Servicing the Traction Belt

    Checking the Traction Belt

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Check the traction-belt condition.
  • Inspect the traction belt for signs of excessive wear or damage.

    Replace the belt if it is excessively worn or damaged; refer to Replacing the Traction Belt.

    Replacing the Traction Belt

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    Removing the Traction Belt

    1. Disconnect the PTO shaft from the attachment gearbox; refer to your attachment Operator’s Manual.

    2. Unplug the clutch-wire-harness connector from the machine wire harness (Figure 75).

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    3. Remove the bolt, washer, and nut from the rubber strap (Figure 75) on the frame.

      A spacer is contained in the rubber strap; ensure that this is not misplaced.

    4. Have an assistant use a ratchet to release tension from the belt, then remove the belt from the pump pulley, idler pulley, and engine pulley.

    5. Move the belt over the clutch and forward on the PTO shaft.

    Installing the Traction Belt

    1. Move the belt along the PTO shaft, over the clutch, and onto the engine pulley.

    2. Have an assistant use a ratchet to pull the idler pulley down.

    3. Route the belt on the engine pulley, idler pulley, and pump pulley (Figure 74).

    4. Remove the ratchet from the idler arm.

    5. Ensure that the rubber-strap spacer is in-place.

    6. Use the previously removed bolt, washer, and nut to secure the end of the rubber strap to the frame.

    7. Plug in the clutch-wire-harness connector to the machine wire harness.

    Controls System Maintenance

    Adjusting the PTO-Clutch Gap

    Maintenance Service IntervalMaintenance Procedure
    Every 200 hours
  • Adjust the PTO-clutch gap.
    1. Allow the engine to cool.

    2. Raise the engine hood.

    3. Adjust the air gap so that a 0.3 mm (0.012 inch) feeler gauge slides in between the clutch lining and friction plate with light pressure (Figure 76).

      Note: You can decrease the gap by turning the adjusting nuts clockwise (Figure 76). The maximum service gap is 0.6 mm (0.024 inch). Adjust all 3 air gaps to 0.4 mm (0.012 inches).

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    4. After the 3 air gaps are adjusted, check all 3 again.

      Note: Adjusting 1 air gap can alter the other gaps.

    Adjusting the Traction-Pedal Stop

    You can adjust the traction pedal for operator comfort or to reduce the maximum forward speed of the machine.

    1. Move the traction pedal fully forward (Figure 77).

      Note: The traction pedal should contact the traction-pedal stop before the pump reaches full stroke.

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    2. If the traction pedal does not contact the traction-pedal stop or if you want to reduce the forward speed of the machine, perform the following:

      1. Hold the traction-pedal stop (Figure 77) with a wrench.

      2. Loosen the jam nut at the bottom of the footrest plate (Figure 78).

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      3. Move the traction pedal to the full forward position (Figure 77).

      4. While holding the traction-pedal stop, adjust the jam nut that is above the footrest plate (Figure 77) until the traction pedal makes contact with the stop.

      5. Lengthen the traction-pedal stop position by rotating the stop 1 full rotation counterclockwise away from the jam nut above the footrest plate.

        Note: Shortening the traction-pedal-stop position will increase the forward speed of the machine.

      6. While holding the traction-pedal stop, torque the jam nut at the bottom of the footrest plate (Figure 77 and Figure 78) to 37 to 45 N∙m (27 to 33 ft-lb).

      7. Check that the traction pedal contacts the traction-pedal stop before the pump reaches full stroke.

        Note: If the traction pedal does not contact the traction-pedal stop, repeat steps 1 through 7.

    Hydraulic System Maintenance

    Hydraulic System Safety

    • Seek immediate medical attention if fluid is injected into skin. Injected fluid must be surgically removed within a few hours by a doctor.

    • Ensure that all hydraulic-fluid hoses and lines are in good condition and all hydraulic connections and fittings are tight before applying pressure to the hydraulic system.

    • Keep your body and hands away from pinhole leaks or nozzles that eject high-pressure hydraulic fluid.

    • Use cardboard or paper to find hydraulic leaks.

    • Safely relieve all pressure in the hydraulic system before performing any work on the hydraulic system.

    Hydraulic Fluid Specifications

    The reservoir is filled at the factory with approximately 22.7 L (6 US gallons) of high-quality hydraulic fluid. Check the level of the hydraulic fluid before the engine is first started and daily thereafter; refer to Checking the Hydraulic-Fluid Level.

    Recommended replacement fluid: Toro PX Extended Life Hydraulic Fluid; available in 19 L (5 US gallon) pails or 208 L (55 US gallon) drums.

    Note: A machine using the recommended replacement fluid requires less frequent fluid and filter changes.

    Alternative hydraulic fluids:If Toro PX Extended Life Hydraulic Fluid is not available, you may use another conventional, petroleum-based hydraulic fluid having specifications that fall within the listed range for all the following material properties and that it meets industry standards. Do not use synthetic fluid. Consult with your lubricant distributor to identify a satisfactory product.

    Note: Toro does not assume responsibility for damage caused by improper substitutions, so use products only from reputable manufacturers who will stand behind their recommendation.

    High Viscosity Index/Low Pour Point Anti-wear Hydraulic Fluid, ISO VG 46

    Material Properties: 
     Viscosity, ASTM D445cSt @ 40°C (104°F) 44 to 48
     Viscosity Index ASTM D2270140 or higher
     Pour Point, ASTM D97-37°C to -45° C (-34° F to -49° F)
    Industry Specifications:Eaton Vickers 694 (I-286-S, M-2950-S/35VQ25 or M-2952-S)

    Note: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic fluid is available in 20 ml (2/3 fl oz) bottles. A bottle is sufficient for 15 to 22 L (4 to 6 US gallons) of hydraulic fluid. Order Part No. 44-2500 from your authorized Toro distributor.

    Important: Toro Premium Synthetic Biodegradable Hydraulic Fluid is the only synthetic biodegradable fluid approved by Toro. This fluid is compatible with the elastomers used in Toro hydraulic systems and is suitable for a wide-range of temperature conditions. This fluid is compatible with conventional mineral oils, but for maximum biodegradability and performance, the hydraulic system should be thoroughly flushed of conventional fluid. The oil is available in 19 L (5 US gallons) pails or 208 L (55 US gallons) from your authorized Toro distributor.

    Checking the Hydraulic-Fluid Level

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the hydraulic-fluid level.
    1. Park the machine on a level surface, lower the cutting unit, engage the parking brake, shut off the engine, and remove the key.

    2. Remove the plug from the hydraulic tank (Figure 79).

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    3. Remove the dipstick from the hydraulic tank and wipe it with a clean cloth (Figure 79).

    4. Insert the dipstick into the hydraulic tank.

    5. Remove the dipstick and check the fluid level (Figure 80).

      • If you have a cutting unit equipped: The hydraulic-fluid level is at the appropriate level when the fluid appears between the lower 2 marks on the dipstick (A in Figure 80). It is also acceptable for the fluid level to be above the lower marks.

      • If you have the Hydraulic Driven Attachment Hose Kit equipped: The hydraulic-fluid level is at the appropriate level when the fluid appears between the upper 2 marks on the dipstick (B in Figure 80).

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    6. If the fluid level is below the appropriate lower mark (per your equipped attachment; refer to step 5) on the dipstick, add the specified hydraulic fluid into the tank. Repeat steps 3 through 5 until the fluid level appears between the appropriate 2 marks on the dipstick.

    7. Insert the dipstick and plug into the hydraulic tank.

    8. Hand-tighten the plug.

      Important: Do not use a tool to tighten the plug.

    9. Check all hydraulic hoses and fittings for leaks.

    Changing the Hydraulic Fluid and Filters

    Maintenance Service IntervalMaintenance Procedure
    After the first 1000 hours
  • Change the hydraulic fluid and hydraulic filter.
  • Every 800 hours
  • Change the hydraulic filter (if you are not using the recommended hydraulic fluid or have ever filled the hydraulic tank with alternative fluid).
  • Change the hydraulic fluid (if you are not using the recommended hydraulic fluid or have ever filled the hydraulic tank with alternative fluid).
  • Every 1,000 hours
  • Change the hydraulic filter (if you are using the recommended hydraulic fluid).
  • Every 2,000 hours
  • Change the hydraulic fluid (if you are using the recommended hydraulic fluid).
  • If the hydraulic fluid becomes contaminated, contact your authorized Toro distributor; the system must be flushed. Contaminated fluid looks milky or black when compared to clean fluid.

    Important: Use Toro replacement filters; refer to the machine Parts Catalog. Using any other filter may void the warranty on some components.

    1. Park the machine on a level surface, lower the cutting unit, engage the parking brake, shut off the engine, and remove the key.

    2. Place a large drain pan under the hydraulic-fluid tank.

    3. Remove the hydraulic-tank cap and dipstick.

    4. Remove the drain plug (Figure 81) from the bottom of the tank and let the hydraulic fluid flow into the pan.

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    5. Clean the area around the filter-mounting area.

    6. Place a drain pan under the filter (Figure 81), remove the filter, and let any remaining oil drain into the pan.

    7. Lubricate the new filter gasket and fill the filter with hydraulic fluid.

    8. Ensure that the filter-mounting area is clean and screw the filter on until the gasket contacts the mounting plate; then tighten the filter an additional 1/2 turn.

    9. Fill the hydraulic tank with hydraulic fluid; refer to Checking the Hydraulic-Fluid Level.

      Important: Use only the hydraulic fluids specified. Other fluids could cause system damage.

    10. Install the drain plug when the hydraulic fluid stops draining.

    11. Install the reservoir dipstick and cap.

    12. Start the engine and use all of the hydraulic controls in the following order to distribute hydraulic fluid throughout the system:

      1. Use the traction pedal to move the machine forward and backward.

      2. Use the steering wheel to move the tires all the way to the right and left.

      3. Use the lift switch to raise and lower the attachment (e.g., cutting unit).

    13. Check for leaks and shut off the engine.

    14. Check the hydraulic fluid level in the tank; refer to Checking the Hydraulic-Fluid Level.

    Checking the Hydraulic Lines and Hoses

    Maintenance Service IntervalMaintenance Procedure
    Every 2 years
  • Replace moving hoses.
  • Inspect the hydraulic lines and hoses daily for leaks, kinked lines, loose mounting supports, wear, loose fittings, weather deterioration, and chemical deterioration. Make all necessary repairs before operating the machine.

    Cab Maintenance

    Cleaning the Cab

    Important: Use care around the cab seals (Figure 82). If you are using a pressure washer, keep the washer wand at least 0.6 m (2 ft) away from the machine. Do not use the pressure washer directly on the cab seals or under the rear overhang.

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    Cleaning the Cab Air Filters

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Clean the cab air filters; replace them if they are torn or excessively dirty.
    1. Remove the knobs and grates from the cab rear overhang (Figure 83).

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    2. Remove the air filters from the cab.

    3. Clean the filters by blowing clean, oil-free, compressed air through them.

      Important: If either filter has a hole, tear, or other damage, replace the filter.

    4. Use the knobs and grates to install the filters into the cab (Figure 83).

    Cleaning the Cab-Condenser Filter

    The purpose of the cab-condenser filter is to prevent large debris, such as grass and leaves, from entering the cab condenser and condenser fans.

    1. Pull the screen cover straight down.

    2. Clean the condenser filter with water.

      Note: Do not use a pressure washer.

      Important: If the filter has a hole, tear, or other damage, replace the filter.

    3. Allow the filter to dry before installing it into the machine.

    4. Rotate the filter screen around the tabs until the latch locks into the latch-mount assembly (Figure 84).

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    Replacing the Dome Light

    Note: Refer to the Parts Catalog for the appropriate bulb part number.

    1. Use a screwdriver to remove the light lens from the control panel. (Figure 85).

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    2. Remove the bulb from the light base (Figure 85).

    3. Install a new bulb into the light base.

    4. Install the lens into the control panel.

    Filling the Windshield-Wiper-Fluid Reservoir

    Note: The windshield-wiper-fluid reservoir is located next to the engine on the right side of the machine.

    1. Remove the cap (Figure 86) on the reservoir.

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    2. Fill the reservoir with wiper fluid.

    3. Replace the cap on the reservoir.

    Storage

    Storage Safety

    • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

    • Do not store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or other appliance.

    Preparing the Machine

    Important: Do not use brackish or reclaimed water to clean the machine.

    1. Park the machine on a level surface; engage the parking brake; shut off the engine; remove the key; and wait for all movement to stop before leaving the machine.

    2. Thoroughly clean the machine, cutting unit, and engine.

      Important: Do not use high-pressure water near the electrical controls or cab seals, as this may cause damage.

    3. Check and adjust the air pressure in the tires; refer to Checking the Tire Air Pressure.

    4. Check the hydraulic lines and hoses; repair them as necessary.

    5. Check the hydraulic-fluid level; refer to Checking the Hydraulic-Fluid Level.

    6. Remove, sharpen, balance, and install the cutting-unit blades.

    7. Check for loose fasteners and tighten them as necessary.

    8. Lubricate all grease fittings and apply oil to pivot points. Wipe clean any excess lubricant.

    9. Lightly sand and use touch-up paint on painted areas that are scratched, chipped, or rusted. Repair any dents in the metal body.