LT3340 4 Wheel Drive Triple Reel Mower

Move the lever upward to adjust the forward/backward position of the seat. Release the lever to lock the seat in position (Figure 9).

Figure 9

1. Lever

Rotate the handle clockwise to increase suspension stiffness and counterclockwise to decrease the stiffness. The dial indicates when the seat suspension is adjusted for the operator’s weight (kg); refer to Figure 10.

Figure 10

1. Lever
2. Dial

To adjust seat height incremental, manually lift the seat. To lower the seat, lift it beyond the highest setting, allow it to drop to the lowest setting, and if needed manually lift the seat to the desired height (Figure 11).

Figure 11

1. Handle

Pull the handle outward to adjust the seat backrest angle. Release the handle to lock the seat backrest in position (Figure 12).

Figure 12

1. Handle

Raise the cutting units to the TRANSPORT position and secure the arm-latch pins to the latches with the bails (Figure 14).

Figure 14

1. Bails (front cutting-unit arm latches)

Raise the cutting units to the TRANSPORT position, lift the latch arm for the rear cutting-unit arm, and position the arm inboard (Figure 15).

Figure 15

1. Latch arm (rear cutting-unit arm latch)
2. Front of the machine

Before starting the machine each day, perform the Each Use/Daily procedures listed in .

With the engine shut off, operate the forward and reverse traction pedals through the full range of articulation and ensure that the mechanism returns freely to the NEUTRAL position.

Important: Do not operate the machine if the operator presence controls are damaged or worn. Always replace damaged or worn parts, and check that operator presence controls function correctly before operating the machine.

Important: Always use the seat belt when the roll bar is in the raised and locked position. Do not use the seat belt when the roll bar is in the lowered position.

Important: If you are starting the engine for the first time, the engine has stopped from lack of fuel, or you performed fuel system maintenance, bleed the fuel system before starting the engine; refer to Priming the Fuel System.

Important: This machine is fitted with an engine start lockout; refer to Understanding the Operator Presence Controls.

1. Engage the parking brake, move the traction pedal to the NEUTRAL position, and ensure that the cutting unit drive switch is in the OFF position.

2. Turn the key to the INTAKE HEATER/RUN POSITION position.

   Note: The pre-heat indicator icon displays in the InfoCenter. Wait until the pre-heat indicator icon no longer displays.

   

   Figure 24

   1. Key
   2. Key switch
   3. Shutoff position (stop)
   4. Intake heater/run position
   5. Start position

3. Rotate the key to the start position.

   When the engine starts, release the key to the intake heater/run position.

   Important: Crank the engine for no longer than 15 seconds.

4. Run the engine at low idle speed until it warms up.

Important: Allow the engine to idle for 5 minutes before shutting it off after a full-load operation. This allows the turbocharger to cool down before shutting off the engine. Failure to idle the engine may damage the turbocharger.

1. Move the traction pedal to the NEUTRAL position, shut off the cutting unit drive switch, engage the parking brake, and lower the cutting units.

2. Press the engine speed switch until the engine speed is at low idle.

3. Let the engine run for at least 5 minutes.

4. Turn the key to shutoff (stop) position (Figure 25).

   

   Figure 25

   1. Key
   2. Key switch
   3. Shutoff position (stop)
   4. Intake heater/run position
   5. Start position

5. Remove the key before you leave the operator’s seat.

Use the 3 lift-control switches to raise or lower the cutting units independently.

Note: You enable the cutting-unit Auto Limited Lift feature in the settings menu of the InfoCenter.

• Manual limited lift uses the 3 lift-control switches, and is always available regardless of auto-limited lift setting in the InfoCenter.

• When cutting-unit Auto Limited Lift is enabled, driving the machine in reverse causes the cutting units to automatically raise to the limited-lift position.

• The cutting units return to the floating position when driving the machine forward.

To raise the cutting units to the limited-lift position, momentarily pull the lift-control switches.

Note: The cutting-unit drives disengage immediately, and the cutting units raise to approximately 150 mm (6 inches) above ground level.

Auto-limited lift operates with the cutting units lowered and rotating.

The cutting unit drive engages only when you sit in the operator’s seat; refer toChecking the Operator Presence Seat Switch.

Figure 28

1. Forward
2. Off
3. Reverse

A variable hydraulic weight transfer system provides improved tire grip with the grass surface—traction assistance.

Hydraulic pressure from the cutting-unit lift system provides a lifting force that reduces the weight of the cutting units on the ground and transfers the weight downward to the tires. This action is known as weight transfer.

Note: Adjust the amount of weight transfer to suit operating conditions.

1. Open the hood.

   

   Figure 29

   1. Lock wheel
   2. Weight transfer hand wheel

2. At the right side of the machine, loosen the lock wheel of the weight transfer manifold 1/2 turn counterclockwise while holding the hand wheel steady (Figure 29).

3. Rotate the weight transfer hand wheel (Figure 29) as follows:

   • counterclockwise to reduce weight transfer

   • clockwise to increase weight transfer

   Note: The recommended setting for the weight transfer/traction assistance is to increase the weight transfer until the cutting units start to lift, then rotate the hand wheel 1/2 turn counterclockwise.

4. Tighten the lock wheel (Figure 29).

1. Park the machine on a level surface.

2. Move the traction pedal to the NEUTRAL position, engage the parking brake, and shut off the cutting units.

3. Lower the cutting units to the ground or securely lock them in the transport positions.

4. Shut off the engine, remove the key, and wait for all moving parts to stop.

5. Release all stored energy devices.

6. Check that all moving parts are stationary.

7. Using a suitable strong wooden instrument, remove the blockage. Ensure that the wooden instrument is properly supported in the cutting unit and avoid using excessive force to prevent damage.

8. Remove the wooden instrument from the cutting unit before starting the engine.

9. Repair or adjust the cutting unit if required.

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

• Tie the machine down securely.

Ensure that the towing vehicle can control the combined weight of both vehicles; refer to Specifications.

1. Move the platform-latch handle (Figure 40) toward the front of the machine until the latch hooks clear the locking bar.

   

   Figure 40

   1. Platform-latch handle

2. Raise the platform (Figure 41).

   Note: The gas lift cylinder assists lifting the platform.

   

   Figure 41

1. Lower the platform carefully (Figure 42).

   Note: The gas lift cylinder helps support the platform.

   

   Figure 42

2. As the platform nears the fully lowered position, move the platform-latch handle (Figure 43) toward the front of the machine.

   Note: This ensures that the latch hooks clear the locking bar.

   

   Figure 43

   1. Platform-latch handle
   2. Locking bar

3. Fully lower the platform and move the platform-latch handle toward the rear of the machine until the latch hooks fully engage the locking bar (Figure 44).

   

   Figure 44

   1. Platform-latch handle

1. At the left side of the operator’s platform, open the door of the storage compartment (Figure 45).

   

   Figure 45

   1. Washer
   2. Knob
   3. Storage compartment

2. Remove the 3 knobs and 3 washers that secure the storage compartment to the machine, and remove the compartment (Figure 45).

1. Align the holes on the bottom of the storage compartment with the holes in the chassis brackets.

2. Assemble the storage compartment to the machine with the 3 knobs and 3 washers (Figure 46)

   

   Figure 46

   1. Washer
   2. Knob
   3. Storage compartment

3. Close the storage-compartment door.

Note: Use jack stands to support the machine when you lift it.

• Front—under the front arm mount

• Rear—axle tube on the rear axle

Figure 47

1. Front left lift point
2. Front right lift point
3. Rear lift point

Important: Lubricate the bearings, bushings, and pivot points immediately after every washing, regardless of the service interval listed.

Grease specification: No. 2 lithium grease.

• Use 1 pump of grease on the height-of-cut adjusters and 3 pumps of grease on all other grease fittings

• Refer to Figure 48 for the grease fitting locations.

• Replace any damaged grease fittings.

Figure 48

1. – Grease every 50 hours
2. – Grease daily

1. Open the hood.

2. Check the air filter-blockage indicator (Figure 49).

   Important: If the indicator is red, inspect the primary air filter and replace it if it is dirty or damaged; refer to Replacing the Primary Air Filter.

   

   Figure 49

   1. Filter-blockage indicator

3. If the filter-blockage indicator is not red, close the hood.

Check the air-cleaner body for damage that could cause an air leak. Replace the air-cleaner body if damaged. Check the whole intake system for leaks, damage, or loose hose clamps.

Note: Service the primary air filter when the filter-blockage indicator (Figure 49) is red. Changing the air filter frequently increases the chance of dirt entering the engine when the filter is removed.

Important: Be sure that the cover is seated correctly and seals with the air-cleaner body.

1. Before removing the air-filter cover, use low pressure air (40 psi, clean and dry) to help remove large accumulations of debris packed outside of the filter canister.

   Note: This cleaning process prevents debris from migrating into the intake when the filter is removed.

   Important: Avoid using high-pressure air which could force dirt through the filter into the intake tract.

   

   Figure 50

   1. Air-filter cover
   2. Primary air filter
   3. Canister
   4. Dirt ejection port

2. Remove the cover from the air-cleaner body.

3. Remove the primary air filter (Figure 50).

   Important: Do not clean and reuse a used element because of possible damage to the filter element.

4. Inspect the new filter for shipping damage, checking the sealing end of the filter and the body.

   Important: Do not use a damaged element.

5. Insert the new filter by applying pressure to the outer rim of the element to seat it in the canister.

   Important: Do not apply pressure to the flexible center of the filter.

6. Clean the dirt ejection port located in the air-filter cover. Remove the rubber outlet valve from the cover, clean the cavity in the valve, and install the outlet valve into the air-filter cover.

7. Align the dirt ejection port air-filter cover between 5 o’clock to 7 o’clock when viewed from the end, assemble the cover to the canister, and secure the cover.

8. Check the condition of the air-cleaner hoses.

The air filter has a secondary, safety filter element inside the primary air filter to prevent dislodged dust and other items from entering the engine while changing the main element.

Replace the safety filter; never clean it.

Important: Never attempt to clean the safety filter. If the safety filter is dirty, then the primary filter is damaged. Replace both filters.

Figure 51

1. Air-filter cover
2. Primary air filter
3. Canister
4. Safety filter

If engine faults , , or display in the InfoCenter (Figure 54), clean the soot filter using the steps that follow:

Figure 54

1. Refer to the Engine section in the Service Manual for information on disassembling and assembling the diesel-oxidation catalyst and the soot filter of the DPF.

2. Refer to your authorized Toro distributor for diesel-oxidation catalyst and the soot filter replacement parts or service.

3. Contact your authorized Toro distributor to reset the engine ECU after you install a clean DPF.

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

2. Place a clean container under the fuel filter.

3. Loosen the drain valve at the bottom of the filter canister and open the vent screw at the top of the canister mount.

   

   Figure 55

   1. Vent screw
   2. Drain valve (water separator filter)

4. Tighten the drain valve at the bottom of the filter canister and close the vent screw at the top of the canister mount.

5. Prime the fuel system; refer to Priming the Fuel System.

Prime the fuel system under the following conditions:

• Before starting the engine for the first time.

• If you run out of fuel and then add new fuel to the system.

• After performing maintenance to the fuel system, such as changing the fuel filter, draining the water separator, or replacing a fuel-system component.

To prime the fuel system, rotate the key switch to the ON position for 10 to 15 seconds to allow the electric fuel pump to prime the fuel system.

Important: Do not use the starter motor to crank the engine to prime the fuel system. You will damage the starter motor.

Important: Replace the fuel filter canister periodically to prevent wear of the fuel injection pump plunger or the injection nozzle, due to dirt in the fuel.

1. Place a clean container under the fuel filter canister (Figure 56).

2. Drain the fuel filter canister; refer to Servicing the Water Separator.

3. Clean the area around the fuel filter and filter head (Figure 56).

   

   Figure 56

   1. Filter head
   2. Fuel filter

4. Remove the filter canister and clean the filter head (Figure 56).

5. Lubricate the gasket on the filter canister with clean diesel fuel.

6. Install the new filter canister by hand until the gasket contacts mounting surface.

7. Prime the fuel system; refer to Priming the Fuel System.

Note: Refer to the engine owner's manual included with the machine for additional information.

1. Clean the area around the fuel-filter head (Figure 57).

   

   Figure 57

   1. Fuel-filter head
   2. Fuel filter

2. Remove the filter and clean the filter-head mounting surface (Figure 57).

3. Lubricate the filter gasket with clean diesel fuel.

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.

Check the fuel lines and connections for deterioration, damage, or loose connections.

The fuel pick-up tube is located inside the fuel tank. The pick-up tube is equipped with a screen to help prevent debris from entering the fuel system. Remove the fuel pick-up tube and clean screen as required.

Keep the terminals and the entire battery case clean because a dirty battery discharges slowly. To clean the battery, wash the entire case with a solution of baking soda and water. Rinse it with clear water.

Inspect all electrical connections and cables and replace any which are damaged or corroded. Spray a good-quality water inhibitor onto exposed connections to prevent moisture ingress.

1. Remove the storage compartment; refer to Removing the Storage Compartment.

2. Remove the fuse-block cover (Figure 58)

   Note: The fuse block is located next to the battery.

   

   Figure 58

   1. Fuse block
   2. Fuse-block cover

3. Check for open fuses.

   Note: There are 10 fuses in the electrical system.

4. Replace any open fuse with a fuse of equal amperage capacity.

   

   Figure 59

5. Install the fuse-block cover (Figure 58).

6. Install the storage compartment; refer to Installing the Storage Compartment.

Important: Maintain correct tire pressure in all tires to ensure correct contact with the turf.

Recommended tire pressure is 1 bar (14.5 psi) for general all around use. Adjust the tire air pressures according to the following table depending on operating conditions.

Front wheel nuts torque specification: 200 N∙m (148 ft-lb)

Rear wheel nuts torque specification: 100 N∙m (74 ft-lb)

Check the condition and security of the cable and operating mechanism at the speed-control pedals and transmission pump ends.

• Remove buildup of dirt, grit, and other debris.

• Ensure that the ball joints are securely anchored and check that the mounting brackets and cable anchors are tight and free from cracks.

• Inspect end fittings for wear, corrosion, broken springs, and replace if necessary.

• Ensure that the rubber seals are correctly located and are in good condition.

• Ensure that the articulating sleeves supporting the inner cable are in good condition and firmly attached to the outer cable assembly at the crimped connections. If there are any signs of cracking or detachment install a new cable immediately.

• Check that sleeves, rods, and inner cable are free from bends, kinks, or other damage. If they are not, install a new cable immediately.

• With the engine shut off, operate the pedal controls through the entire range and ensure that the mechanism moves smoothly and freely to the neutral position without sticking or hanging up.

  

  Figure 60

  1. Outer cover
  2. Rubber seal
  3. Sleeve
  4. Rod end

1. Rotate the steering wheel to position the rear wheels straight ahead.

2. Loosen the jam nut on each end of the tie rod (Figure 61).

   Note: The end of the tie rod with the external groove is a left-hand thread.

   

   Figure 61

   1. Jam nut
   2. Tie rod
   3. Wrench flat

3. To pivot the wheels, rotate the tie rod to by turning it at the wrench flats (Figure 61).

4. Measure the distance between the front of the rear wheels and between the rear of the rear wheels at axle height.

   Note: When the wheel alignment is correct, you should measure 6 mm (1/4 inch) or less between the front of the wheels and between the rear of the wheels.

5. Repeat steps 3 and 4 until the difference between the front and rear is 6 mm (1/4 inch) or less.

6. Tighten the jam nut on each end of the tie rod (Figure 61).

The coolant reservoir is filled at the factory with a 50/50 solution of water and ethylene glycol base extended-life coolant.

Important: Use only commercially available coolants that meet the specifications listed in the Extended Life Coolant Standards Table.Do not use conventional (green) inorganic-acid technology (IAT) coolant in your machine. Do not mix conventional coolant with extended-life coolant.

Coolant Type Table

Extended Life Coolant Standards

Important: Coolant concentration should be a 50/50 mixture of coolant to water.

• Preferred: When mixing coolant from a concentrate, mix it with distilled water.

• Preferred option: If distilled water is not available, use a pre-mix coolant instead of a concentrate.

• Minimum requirement: If distilled water and pre-mix coolant are not available, mix concentrated coolant with clean drinkable water.

1. Check the level of coolant in the expansion tank (Figure 62).

   The coolant level should be between the marks on the side of the tank.

   

   Figure 62

   1. Expansion tank

2. If the coolant level is low, remove the expansion-tank cap and replenish the system. Do not overfill.

3. Install the expansion-tank cap.

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

2. Remove the ball pin from the screen latch (Figure 63)

   

   Figure 63

   1. Ball pin
   2. Screen latch
   3. Back of the machine

3. Unlatch the engine screen, open it, and lift it from the machine (Figure 64).

   

   Figure 64

4. Clean the screens.

5. Unlatch and open the hood (Figure 65).

   

   Figure 65

6. Thoroughly clean all debris out of the engine area.

7. Thoroughly clean both sides of the radiator and oil cooler with compressed air (Figure 66).

   

   Figure 66

   1. Radiator

8. Close and latch the hood.

9. Assemble the screen onto the pivot pins, close the screen and secure it with the latch and ball pin.

1. Apply 10 kgf (22 lb) of force against the alternator belt (Figure 67), midway between the pulleys.

   Note: The belt should deflect 10 mm (3/8 inch).

   

   Figure 67

   1. Tension bracket bolt
   2. Alternator tension bolt
   3. Belt
   4. Alternator pivot bolt
   5. Alternator

2. If the belt tension is incorrect, perform the following:

   • If belt deflection is less than 10 mm (3/8 inch), loosen the alternator pivot bolt and tension bolt (Figure 67), and reduce the belt tension.

   • If belt deflection is greater than 10 mm (3/8 inch), loosen the alternator pivot bolt and tension bolt (Figure 67), and increase the belt tension.

     Note: If needed, loosen the tension bracket bolt (Figure 67).

3. Tighten the bolts (Figure 67).

4. Check the deflection of the belt again to ensure correct belt tension.

Check the hydraulic lines and hoses for leaks, kinked lines, loose mounting supports, wear, loose fittings, weather deterioration, and chemical deterioration. Make all necessary repairs before operating.

The reservoir is filled at the factory with high-quality hydraulic fluid. Check the level of the hydraulic fluid before you first start the engine and daily thereafter; refer to Checking the Hydraulic Fluid Level.

Recommended hydraulic 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

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 (0.67 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 gallon) pails or 208 L (55 US gallon) drums from your authorized Toro distributor.

The reservoir is filled at the factory with high-quality hydraulic fluid. The best time to check the hydraulic fluid is when it is cold.

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

2. Check the sight-level gauge on the side of the tank.

   Note: The hydraulic-fluid level needs to align with the upper mark.

3. If additional hydraulic fluid is needed, remove the storage compartment; refer to Removing the Storage Compartment.

4. Clean the area around the filler neck and the cap of the hydraulic tank (Figure 68) .

   

   Figure 68

   1. Hydraulic-tank cap
   2. Fluid tank
   3. Sight-level gauge

5. Remove the cap and fill the tank with the specified hydraulic fluid to the upper mark on the sight-level gauge.

   Important: Do not overfill the tank with hydraulic fluid.

6. Install the cap onto the tank.

7. Install the storage compartment; refer to Installing the Storage Compartment.

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

2. Open the hood.

3. At the left side of the machine, clean the area around the filter head and place a drain pan under the filter (Figure 69).

   

   Figure 69

   1. Filter head
   2. Hydraulic fluid return filter

4. Remove the return filter (Figure 69).

5. Lubricate the gasket of the new return filter with clean hydraulic fluid.

6. Assemble the filter to the filter head, and tighten the filter by hand until the gasket contacts the mounting surface, then rotate it an additional 1/2 turn (Figure 69).

7. Start the engine and let it run for 2 minutes to purge air from the system.

8. Shut off the engine, remove the key, and check for leaks.

9. Close and latch the hood.

If the fluid becomes contaminated, contact your authorized Toro distributor to flush the system. Contaminated fluid looks milky or black when compared to clean fluid.

Use this process to restore the sharp cutting edges to reels and bedknives which are needed for good-quality grass cutting.

This process can only removes a small amount of metal to restore the cutting edges. If the blade edges are seriously worn or damaged, remove the cutting unit and have the reels and bedknife ground again.

1. Engage the parking brake, lower the cutting units, shut off the engine, and remove the key.

2. Adjust the reels to the bedknives to obtain light contact.

3. Apply a coat of medium-grade detergent-based carborundum paste to the cutting edges of the reels with a long-handled brush.

   80-grade carborundum paste
   	Part number
   0.45 kg (1 lb)	63-07-088
   11.25 kg (25 lb)	63-07-086

   

   Figure 72

4. Sit on the operator seat, start the engine, and set the engine speed to idle.

   Warning

   If you touch the cutting units when the engine is running, you could be seriously injured.

   • Ensure that the area surrounding the cutting units is clear of people.

   • Keep hands and feet clear of the cutting units during the period when the mower engine is running.

5. Press cutting unit drive switch to the REVERSE (backlap) position for a period of time. Listen to the grinding action.

6. Operate the cutting unit drive switch to the OFF. When the cutting unit stops running, shut off the engine and remove the key.

7. Thoroughly clean the blade edges and adjust the bedknives to the reels.

8. Check that a thin piece of paper can be cut cleanly at all points along the cutting edges while rotating the reels by hand.

9. If further back lapping is necessary repeat steps 2 through 8.

10. Thoroughly clean off all traces of the carborundum paste from the reels and bedknives.

• Grind reel blades or bedknives to correct excessively rounded or distorted reel edges or bedknife edges.

  Important: Replace the bedknives at the end of their wear life.

• Grind new blades on their holders prior to fitting.

• When grinding reel blades or the bedknives are needed, it is essential that they are ground at the same time.

  Note: The only exception to this rule is when a new reel is installed, in which case only grind the bedknife.

• Have your authorized Toro dealer grind your reel blades and bedknives on a quality, well-maintained reel / bedknife grinding machine.

1. Inspect the seat belt for wear, cuts, and other damage. Replace the seat belt(s) if any component does not operate properly.

2. Clean the seat belt as necessary.

Check the machine for loose and missing fasteners.

Note: Tighten any loose fasteners; replace any missing fasteners.

Wash the machine as needed using water alone or with a mild detergent. You may use a rag when washing the machine.

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

Important: Do not use power-washing equipment to wash the machine. Power-washing equipment may damage the electrical system, loosen important decals, or wash away necessary grease at friction points. Avoid excessive use of water near the control panel, engine, and battery.

Important: Do not wash the machine with the engine running. Washing the machine with the engine running may result in internal engine damage.