Maintenance
Note: Determine the left and right sides of the machine from the normal operating position.
Caution
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.
Maintenance Safety
-
Park the machine on a level surface, disengage the auxiliary hydraulics, lower the attachment, engage the parking brake (if equipped), shut off the engine, and remove the key. Wait for all movement to stop and allow the machine to cool before adjusting, cleaning, storing, or repairing it.
-
Clean up oil or fuel spills.
-
Do not allow untrained personnel to service the machine.
-
Use jack stands to support the components when required.
-
Carefully release pressure from components with stored energy; refer to Relieving Hydraulic Pressure.
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Disconnect the battery before making any repairs; refer to Servicing the Battery.
-
Keep your hands and feet away from the moving parts. If possible, do not make adjustments with the engine running.
-
Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals.
-
Do not tamper with the safety devices.
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Use only Toro-approved attachments. Attachments can change the stability and the operating characteristics of the machine. You may void the warranty if you use the machine with unapproved attachments.
-
Use only genuine Toro replacement parts.
-
If any maintenance or repair requires the loader arms to be in the raised position, secure the arms in the raised position with the hydraulic-cylinder lock(s).
Recommended Maintenance Schedule(s)
Maintenance Service Interval | Maintenance Procedure |
---|---|
After the first 8 hours |
|
After the first 50 hours |
|
Before each use or daily |
|
Every 25 hours |
|
Every 100 hours |
|
Every 200 hours |
|
Every 250 hours |
|
Every 400 hours |
|
Every 500 hours |
|
Every 1,500 hours |
|
Yearly |
|
Yearly or before storage |
|
Every 2 years |
|
Important: Refer to your engine owner’s manual for additional maintenance procedures.
Pre-Maintenance Procedures
Using the Cylinder Lock
Warning
The loader arms may lower when in the raised position, crushing anyone under them.
Install the cylinder lock(s) before performing maintenance that requires raised loader arms.
Installing the Cylinder Lock
-
Remove the attachment.
-
Raise the loader arms to the fully raised position.
-
Shut off the engine and remove the key.
-
Remove the lynch pin securing the cylinder lock to the loader arm (Figure 23).
-
Lower the cylinder lock over the cylinder rod and secure it with the lynch pin (Figure 23).
-
Slowly lower the loader arms until the cylinder lock contacts the cylinder body and rod end.
Removing and Storing the Cylinder Lock
Important: Remove the cylinder lock from the rod and fully secure it in the storage position before operating the machine.
-
Start the engine.
-
Raise the loader arms to the fully raised position.
-
Shut off the engine and remove the key.
-
Remove the lynch pin securing the cylinder lock.
-
Rotate the cylinder lock up to the loader arm and secure it with the lynch pin.
-
Lower the loader arms.
Accessing Internal Components
Warning
Opening or removing covers, hoods, and screens while the engine is running could allow you to contact moving parts, seriously injuring you.
Before opening any of the covers, hoods, and screens, shut off the engine, remove the key from the key switch, and allow the engine to cool.
Opening the Hood
Closing the Hood
Opening the Rear-Access Cover
Closing the Rear-Access Cover
-
Move the rear-access cover in place over the back of the machine; ensure that the tabs line up in the slots.
-
Push the access cover forward, lining up the hand-knob screws with the threaded holes in the machine.
-
Screw the hand knobs tight to secure the rear-access cover in place.
Removing the Side Screens
-
Open the hood.
-
Slide the side screens (Figure 27) up and out of the slots in the front screen and frame.
Installing the Side Screens
Slide the side screens into place in the slots in the front screen and frame.
Lubrication
Greasing the Machine
Maintenance Service Interval | Maintenance Procedure |
---|---|
Before each use or daily |
|
Grease Type: General-purpose grease
-
Park the machine on a level surface, engage the parking brake (if equipped), and lower the loader arms.
-
Shut off the engine and remove the key.
-
Clean the grease fittings with a rag.
-
Connect a grease gun to each fitting (Figure 28 and Figure 29).
-
Pump grease into the fittings until grease begins to ooze out of the bearings (approximately 3 pumps).
-
Wipe up any excess grease.
Engine Maintenance
Engine Safety
-
Shut off the engine before checking the oil or adding oil to the crankcase.
-
Do not change the engine governor setting or overspeed the engine.
-
Keep your hands, feet, face, clothing, and other body parts away from the muffler and other hot surfaces.
Servicing the Air Cleaner
Maintenance Service Interval | Maintenance Procedure |
---|---|
Before each use or daily |
|
Every 25 hours |
|
Servicing the Air-Cleaner Cover and Body
Important: Replace the air-cleaner filter only when the service indicator shows red (Figure 30). Changing the air filter before it is necessary only increases the chance of dirt entering the engine when you remove the filter.
-
Park the machine on a level surface, engage the parking brake (if equipped), and lower the loader arms.
-
Shut off the engine and remove the key.
-
Open the hood and secure the prop rod (if applicable).
-
Check the air-cleaner body for damage that could cause an air leak. Check the whole intake system for leaks, damage, or loose hose clamps.
Replace or repair any damaged components.
-
Release the latches on the air cleaner and pull the air-cleaner cover off the air-cleaner body (Figure 30).
Important: Do not remove the air filter.
-
Squeeze the dust cap sides to open it and knock the dust out.
-
Clean the inside of the air-cleaner cover with compressed air that is under 205 kPa (30 psi).
Important: Do not use compressed air on the air-cleaner body.
-
Check the service indicator.
-
If the service indicator is clear, install the air-cleaner cover with the dust cap oriented downward and secure the latches (Figure 30).
-
If the service indicator is red, replace the air filter as described in Replacing the Filter.
-
Replacing the Filter
Important: To prevent engine damage, always operate the engine with the air filter and cover installed.
-
Gently slide the filter out of the air-cleaner body (Figure 30).
Note: Avoid knocking the filter into the side of the body.
Important: Do not attempt to clean the filter.
-
Inspect the new filter for tears, an oily film, or damage to the rubber seal. Look into the filter while shining a bright light on the outside of the filter; holes in the filter appear as bright spots.
If the filter is damaged, do not use it.
-
Carefully install the filter (Figure 30).
Note: Ensure that the filter is fully seated by pushing on the outer rim of the filter while installing it.
Important: Do not press on the soft inside area of the filter.
-
Install the air-cleaner cover with the dust cap oriented downward and secure the latches (Figure 30).
-
Close the hood.
Servicing the Engine Oil
Maintenance Service Interval | Maintenance Procedure |
---|---|
After the first 50 hours |
|
Before each use or daily |
|
Every 100 hours |
|
Every 200 hours |
|
Engine-Oil Specifications
Oil Type: Detergent diesel engine oil (API service CH-4 or higher)
Crankcase Capacity: with filter, 3.7 L (1.0 US gallon)
Viscosity: See table below
Checking the Engine-Oil Level
-
Park the machine on a level surface, engage the parking brake, and lower the loader arms.
-
Shut off the engine, remove the key, and allow the engine to cool.
-
Open the hood.
-
Clean the area around the oil dipstick (Figure 32).
-
Pull out the dipstick and wipe the metal end clean (Figure 32).
-
Slide the dipstick fully into the dipstick tube (Figure 32).
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Pull the dipstick out and look at the metal end.
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If the oil level is low (below the bottom hole), clean around the oil-fill cap and remove the cap (Figure 32).
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Slowly pour only enough oil into the valve cover to raise the level to the upper hole on the dipstick.
Important: Do not overfill the crankcase with oil to prevent damaging the engine.
-
Replace the fill cap and dipstick.
-
Close the hood.
Changing the Engine Oil
-
Start the engine and let it run for 5 minutes.
Note: This warms the oil so that it drains better.
-
Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely.
-
Lower the loader arms, engage the parking brake, shut off the engine, and remove the key.
-
Remove the drain plug (Figure 33).
-
When the oil has drained completely, replace the plug.
Note: Dispose of the used oil at a certified recycling center.
-
Remove the fill cap (Figure 32) and slowly pour approximately 80% of the specified amount of oil in through the valve cover.
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Check the oil level.
-
Slowly add additional oil to bring the level to the upper hole on the dipstick.
-
Replace the fill cap.
Changing the Oil Filter
-
Drain the oil from the engine; refer to Changing the Engine Oil.
-
When the oil has drained completely, replace the plug.
Note: Dispose of the used oil at a certified recycling center.
-
Place a shallow pan or rag under the filter to catch oil.
-
Remove the old filter (Figure 34) and wipe the surface of the filter adapter gasket.
-
Pour new oil of the proper type through the center hole of the filter. Stop pouring when the oil reaches the bottom of the threads.
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Allow 1 to 2 minutes for the oil to be absorbed by filter material, then pour off the excess oil.
-
Apply a thin coat of new oil to the rubber gasket on the replacement filter.
-
Install the replacement oil filter to the filter adapter. Turn the oil filter clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 1/2 turn.
-
Remove the fill cap (Figure 32) and slowly pour approximately 80% of the specified amount of oil in through the valve cover.
-
Check the oil level.
-
Slowly add additional oil to bring the level to the upper hole on the dipstick.
-
Replace the fill cap.
Fuel System Maintenance
Danger
In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property.
Refer to Fuel Safety for a complete list of fuel related precautions.
Checking the Fuel Lines and Connections
Maintenance Service Interval | Maintenance Procedure |
---|---|
Every 400 hours |
|
Inspect the fuel lines and connections for deterioration, damage, or loose connections. Tighten any loose connections and contact your Authorized Service Dealer for assistance in fixing damaged fuel lines.
Draining the Fuel Filter/Water Separator
Maintenance Service Interval | Maintenance Procedure |
---|---|
Before each use or daily |
|
-
Park the machine on a level surface, engage the parking brake, and lower the loader arms.
-
Shut off the engine and remove the key.
-
Locate the fuel filter on the right side of the engine (Figure 35) and place a clean container under it.
-
Loosen the drain valve on the bottom of the filter canister and allow the water to drain.
-
When finished, tighten the drain valve.
Replacing the Fuel Filter Canister and In-Line Filter
Maintenance Service Interval | Maintenance Procedure |
---|---|
Every 400 hours |
|
-
Park the machine on a level surface, engage the parking brake, and lower the loader arms.
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Shut off the engine and remove the key.
-
Open the rear-access cover; refer to Opening the Rear-Access Cover.
-
Locate the fuel filters on the right side of the engine (Figure 35) and place a clean container under it.
-
Clean the area where the filter canister mounts (Figure 35).
-
Remove the filter canister and clean the mounting surface (Figure 35).
-
Lubricate the gasket on the new filter canister with clean oil.
-
Fill the canister with fuel.
-
Install the filter canister by hand until the gasket contacts the mounting surface, then rotate it an additional 1/2 turn (Figure 35).
-
Locate the in-line filter to the left of the fuel filter canister (Figure 35) and note the direction of flow arrow on the side of the in-line filter.
-
Open the clamps on each end of the in-line filter and slide the hoses off it (Figure 35). Discard the filter.
-
Slide the hoses over the end of a new filter (Figure 35), ensuring that the arrow on the filter is pointing toward the engine or electric fuel pump.
-
Secure the hoses to the filter with the hose clamps.
-
Close the rear-access cover and secure with the fastener(s).
Bleeding the Fuel System
You must bleed the fuel system before starting the engine if any of the following situations have occurred:
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Initial startup of a new machine
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The engine has ceased running due to a lack of fuel.
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Maintenance has been performed on fuel system components (e.g., filter replaced).
-
Park the machine on a level surface, lower the loader arms, and shut off the engine.
-
Ensure that the fuel tank is at least half full.
-
Open the hood.
-
Open the air-bleed screw on the fuel-injection pump (Figure 36).
-
Turn the key in the key switch to the ON position. The electric fuel pump begins operation, thereby forcing air out around the air-bleed screw. Leave the key in the ON position until a solid stream of fuel flows out around the screw.
-
Tighten the screw and turn the key to the OFF position.
Note: The engine should start after the above bleeding procedures are followed. However, if engine does not start, air may be trapped between injection pump and injectors; contact your Authorized Service Dealer.
Draining the Fuel Tank(s)
Maintenance Service Interval | Maintenance Procedure |
---|---|
Every 2 years |
|
Have an Authorized Service Dealer drain and clean the fuel tank(s).
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.
-
Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes, and clothing. Protect your face, eyes, and clothing when working with a battery.
-
Battery gases can explode. Keep cigarettes, sparks, and flames away from the battery.
Servicing the Battery
Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of 4 parts water and 1 part baking soda. Apply a light coating of grease to the battery terminals to reduce corrosion.
Specifications: 12 V, 585 A (cold cranking)
Removing the Battery
Warning
Battery terminals or metal tools could short against metal machine 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.
-
Park the machine on a level surface, engage the parking brake (if equipped), and lower the loader arms.
-
Shut off the engine and remove the key.
-
Open the rear-access cover; refer to Opening the Rear-Access Cover.
-
Remove the battery-access panel
-
Remove the bolt, washer, and bar securing the battery (Figure 38).
-
Disconnect the negative (black) ground cable from the battery post (Figure 38). Retain the fasteners.
-
Slide the rubber cover off the positive (red) cable.
-
Disconnect the positive (red) cable from the battery post (Figure 38). Retain the fasteners.
-
Lift the battery out of the chassis.
Charging the Battery
Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 0°C (32°F).
-
Remove the battery from the machine; refer to Removing the Battery.
-
Charge the battery for 10 to 15 minutes at 25 to 30 A or 30 minutes at 4 to 6 A (Figure 39). Do not overcharge the battery.
-
When the battery is fully charged, unplug the charger from the electrical outlet, then disconnect the charger leads from the battery posts (Figure 39).
Cleaning the Battery
Note: Keep the terminals and the entire battery case clean, to help extend battery life.
-
Park the machine on a level surface, engage the parking brake (if equipped), and lower the loader arms.
-
Shut off the engine and remove the key.
-
Remove the battery from the machine; Removing the Battery.
-
Wash the entire case with a solution of baking soda and water.
-
Rinse the battery with clear water.
-
Coat the battery posts and cable connectors with Grafo 112X (skin-over) grease (Toro Part No. 505-47) or petroleum jelly to prevent corrosion.
-
Install the battery; refer to Installing the Battery.
Installing the Battery
-
Using the fasteners previously removed, install the positive (red) battery cable to the positive (+) battery terminal (Figure 38).
-
Slide the red terminal boot onto the positive battery post.
-
Using the fasteners previously removed, install the negative (black) battery cable to the negative (-) battery terminal (Figure 38).
-
Secure the battery using the bar, bolt, and washer (Figure 38).
Important: Ensure that the battery cables do not contact any sharp edges or each other.
-
Install the battery-access panel (Figure 37).
-
Close the rear-access cover; refer to Closing the Rear-Access Cover.
Servicing a Replacement Battery
The original battery is maintenance-free and does not require service. For servicing a replacement battery, refer to the battery manufacturer’s instructions.
Servicing the Fuses
The electrical system is protected by fuses. It requires no maintenance; however, if a fuse blows, check the component/circuit for a malfunction or a short. Figure 40 illustrates the fuse block and identifies the fuse positions.
Note: If the machine does not start, either the main circuit or control panel/relay fuse could be blown.
To access the fuses, you must remove the fuse panel, as follows:
-
Park the machine on a level surface, engage the parking brake (if equipped), and lower the loader arms.
-
Shut off the engine and remove the key.
-
Open the hood.
-
Pull the hairpin cotter from the bottom end of the hood prop-rod and slide the prop rod out of the retaining brackets and the prop-rod tab (Figure 41).
-
Remove the 4 screws securing the fuse panel and then pull the panel out and up to remove it (Figure 42).
-
Check the fuses.
-
Install the fuse panel using the 4 screws removed previously.
-
Install the prop-rod into the retaining brackets and prop-rod tab and secure it with the hairpin cotter (Figure 41).
-
Close the hood.
Drive System Maintenance
Servicing the Tracks
Maintenance Service Interval | Maintenance Procedure |
---|---|
After the first 50 hours |
|
Before each use or daily |
|
Every 100 hours |
|
Every 250 hours |
|
Cleaning the Tracks
-
Park the machine on a level surface and engage the parking brake.
-
With the bucket installed and pointing down, lower it into the ground so that the front of the traction unit lifts off the ground a few centimeters (inches).
-
Shut off the engine and remove the key.
-
Using a water hose or pressure washer, remove dirt from each track system.
Important: Ensure that you use high-pressure water to wash only the track area. Do not use a high-pressure washer to clean the rest of the machine. Do not use high pressure water between the drive sprocket and the machine or you may damage the motor seals. High-pressure washing can damage the electrical system and hydraulic valves or deplete grease.
Important: Ensure that you fully clean the road wheels, the tension wheel, and the drive sprocket (Figure 43). The road wheels should rotate freely when clean.
Adjusting the Track Tension
There should be 7 cm (2-3/4 inches) between the tension nut and the back of the tension tube (Figure 44). If not, adjust the track tension using the following procedure:
-
Park the machine on a level surface, engage the parking brake, and lower the loader arms.
-
Shut off the engine and remove the key.
-
Lift/support the side of the unit to be worked on so that the track is off the ground.
-
Remove the locking bolt and nut (Figure 45).
-
Using a 1/2-inch drive ratchet, turn the tensioning screw counterclockwise until the distance between the tension nut and the back of the tension tube (Figure 44) is 7 cm (2-3/4 inches).
-
Align the closest notch in the tension screw to the locking bolt hole and secure the screw with the locking bolt and nut (Figure 45).
-
Lower the traction unit to the ground.
Replacing the Tracks
Replacing Narrow-Width Tracks
When the tracks are badly worn, replace them.
Note: You have narrow-width tracks if the front tension wheels are mounted inside a fork on the end of the tension tube (Figure 46).
-
Park the machine on a level surface, engage the parking brake, and lower the loader arms.
-
Shut off the engine and remove the key.
-
Lift/support the side of the unit to be worked on so that the track is 8 to 10 cm (3 to 4 inches) off the ground.
-
Remove the locking bolt and nut (Figure 45).
-
Using a 1/2-inch drive ratchet, release the drive tension by turning the tensioning screw clockwise (Figure 45 and Figure 46).
-
Push the tension wheel toward the rear of the unit to move the tension tube against the frame (Figure 46).
If it does not touch the frame, continue turning the tensioning screw until it does.
-
Begin removing the track at the top of the tension wheel, peeling it off the wheel while rotating the track forward.
-
When the track is off the tension wheel, remove it from the drive sprocket and road wheels (Figure 46).
-
Beginning at the drive sprocket, coil the new track around the sprocket, ensuring that the lugs on the track fit between the cogs on the sprocket (Figure 46).
-
Push the track under and between the road wheels (Figure 46).
-
Starting at the bottom of the tension wheel, install the track around the wheel by rotating the track rearward while pushing the lugs into the wheel.
-
Turn the tensioning screw counterclockwise until the distance between the tension nut and the back of the tension tube (Figure 44) is 7 cm (2-3/4 inches).
-
Align the closest notch in the tension screw to the locking bolt hole and secure the screw with the locking bolt and nut.
-
Lower the traction unit to the ground.
-
Repeat steps 3 through 14 to replace the other track.
Replacing Wide-Width Tracks
When the tracks are badly worn, replace them.
Note: You have wide-width tracks if the front tension wheels are mounted on the sides of the end of the tension tube (Figure 47).
-
Park the machine on a level surface, engage the parking brake, and lower the loader arms.
-
Shut off the engine and remove the key.
-
Lift/support the side of the unit to be worked on so that the track is 8 to 10 cm (3 to 4 inches) off the ground.
-
Remove the locking bolt and nut (Figure 45).
-
Using a 1/2-inch drive ratchet, release the drive tension by turning the tensioning screw clockwise (Figure 45 and Figure 47).
-
Push the tension wheel toward the rear of the unit to move the tension tube against the frame (Figure 47).
If it does not touch the frame, continue turning the tensioning screw until it does.
-
Remove the nut securing the outer tension wheel and remove the wheel (Figure 47).
-
Remove the track (Figure 47).
-
Remove the nut securing the inner tension wheel and remove the wheel (Figure 47).
-
Pull the 4 large washers out of the 2 wheels, 1 on each side of each wheel.
-
Clean the old grease and dirt out of the area between where the washers were installed and the bearings inside the wheels, then fill this area on each side of each wheel with grease.
-
Install the large washers on the wheels over the grease.
-
Install the inner tension wheel and secure it with the nut removed previously (Figure 47).
-
Torque the nut to 407 N∙m (300 ft-lb).
-
Install the new track, ensuring that the lugs in the track fit between the cogs in the middle of the drive sprocket (Figure 47).
-
Install the outer tension wheel and secure it with the nut removed previously (Figure 47).
-
Torque the nut to 407 N∙m (300 ft-lb).
-
Turn the tensioning screw counterclockwise until the distance between the tension nut and the back of the tension tube (Figure 44) is 7 cm (2-3/4 inches).
-
Align the closest notch in the tension screw to the locking bolt hole and secure the screw with the locking bolt and nut.
-
Lower the traction unit to the ground.
-
Repeat steps 3 through 20 to replace the other track.
Maintaining the Road Wheels
-
Remove the tracks; refer to Replacing the Tracks.
-
Remove the 4 bolts securing each lower track guide which contains the road wheels, and remove them (Figure 48).
-
Remove the snap ring and cap from a road wheel (Figure 49).
-
Check the grease under the cap and around the gasket (Figure 49). If it is dirty, gritty, or depleted, clean out all of the grease, replace the gasket, and add new grease.
-
Ensure that the road wheel turns smoothly on the bearing. If it is frozen, replace the road wheel as described in the Road Wheel Kit Installation Instructions or contact your Authorized Service Dealer for repair.
-
Place the greased road wheel cap over the bolt head (Figure 46).
-
Secure the road wheel cap with the snap ring (Figure 46).
-
Repeat steps 3 through 7 for the other road wheels.
-
Install each track guide to the traction-unit frame using the fasteners you removed previously. Torque the bolts to 91 to 112 N∙m (67 to 83 ft-lb).
-
Install the tracks; refer to Replacing the Tracks.
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.
-
Servicing the Cooling System
Maintenance Service Interval | Maintenance Procedure |
---|---|
Before each use or daily |
|
Every 100 hours |
|
Danger
The rotating shaft and fan can cause personal injury.
-
Do not operate the machine without the covers in place.
-
Keep your fingers, hands, and clothing clear of the rotating fan and drive shaft.
-
Park the machine on a level surface, lower the loader arms, engage the parking brake, shut off the engine, and remove the key from the key switch before performing maintenance.
Cleaning the Radiator Screen
Maintenance Service Interval | Maintenance Procedure |
---|---|
Before each use or daily |
|
Remove any buildup of grass, dirt or other debris from the radiator screen with compressed air.
Checking, Adding, and Bleeding the Engine Coolant
The cooling system is filled with a 50/50 solution of water and permanent ethylene-glycol antifreeze.
-
Park the machine on a level surface, lower the loader arms, engage the parking brake, and shut off the engine.
-
Remove the key from the key switch and allow the engine to cool.
-
Check the coolant level of coolant in the expansion tank (Figure 50).
The coolant level should be at or above the mark on the side of the tank.
-
If the coolant level is low, complete the following procedure:
-
Remove the coolant-fill cap (Figure 51).
-
Open the front and top coolant-bleed valves (Figure 51).
-
Pour coolant into the coolant-filler neck until the coolant begins to come out of the front coolant-bleed valve (Figure 51).
-
Close the front coolant-bleed valve (Figure 51).
-
Pour coolant into the coolant-filler neck until the coolant begins to come out of the top coolant-bleed valve (Figure 51).
-
Close the top coolant-bleed valve (Figure 51).
-
Pour coolant into the coolant-filler neck until the coolant level comes into the filler neck (Figure 51).
-
Install the coolant-fill cap (Figure 51).
-
Add coolant into the expansion tank until it reaches the Full mark on the side of the tank (Figure 50).
-
-
Install the expansion tank cap.
Changing the Engine Coolant
Maintenance Service Interval | Maintenance Procedure |
---|---|
Yearly |
|
Have an Authorized Service Dealer change the engine coolant yearly.
If you need to add engine coolant, refer to Checking, Adding, and Bleeding the Engine Coolant.
Brake Maintenance
Testing the Parking Brake
Maintenance Service Interval | Maintenance Procedure |
---|---|
Before each use or daily |
|
-
Engage the parking-brake; refer to Parking-Brake Lever.
-
Start the engine.
-
Slowly attempt to drive the machine forward or rearward.
Note: The machine may roll slightly before the brakes engage in the drive sprocket.
-
If the brakes do not hold the machine after the initial slight movement, contact your Authorized Service Dealer for service.
Belt Maintenance
Checking the Condition of the Hydraulic Pump Belt
Maintenance Service Interval | Maintenance Procedure |
---|---|
Yearly |
|
Check the condition of the hydraulic pump belt (Figure 52) yearly. Have an Authorized Service Dealer replace it if it becomes damaged or worn.
Controls System Maintenance
Adjusting the Controls
The factory adjusts the controls before shipping the machine. However, after many hours of use, you may need to adjust the traction control alignment, the NEUTRAL position of the traction control, and the tracking of the traction control in the full forward position.
Important: To adjust the controls properly, complete each procedure in the order listed.
Adjusting the Traction Control Alignment
If the traction control bar does not rest flush and square with the reference bar when in the full backward position, immediately complete the following procedure:
-
Park the machine on a level surface, engage the parking brake, and lower the loader arms.
-
Shut off the engine and remove the key.
-
Pull straight back on the traction control so the front of the control contacts the reference bar (Figure 53).
-
If the front of the traction control does not rest square and flush with the reference bar, loosen the flange nut and bolt in the stem of the traction control (Figure 54).
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Adjust the traction control so that it rests flush against the reference bar when you pull it straight back (Figure 54 and Figure 55).
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Tighten the flange nut and bolt in the traction control stem.
Adjusting the Traction Control Neutral Position
If the machine creeps forward or backward when the traction control is in the NEUTRAL position and the unit is warm, immediately complete the following procedure:
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Lift/support the machine so that both tracks are off the ground.
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Open the rear-access cover.
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Loosen the jam nuts on the traction rods, under the control panel (Figure 56).
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Start the traction unit and set the throttle to about 1/3 open position.
Warning
When the machine is running, you could be caught and injured in moving parts or burned on hot surfaces.
Stay away from pinch points, moving parts, and hot surfaces when adjusting the running machine.
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If the left track moves, lengthen or shorten the right traction rod until the track stops moving.
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If the right track moves, lengthen or shorten the left traction rod until the track stops moving.
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Tighten the jam nuts.
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Close the rear-access cover.
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Shut off the engine and lower the machine to the ground.
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Drive the machine in full reverse, checking to see if the unit tracks straight. If it does not, note the direction it veers. Repeat the adjustment previously described so that it tracks straight in reverse.
Adjusting the Tracking of the Traction Control, Full Forward Position
If the machine does not drive straight when you hold the traction control against the reference bar, complete the following procedure:
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Drive the machine with the traction control against the reference bar, noting which direction the traction unit veers.
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Release the traction control.
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If the traction unit veers to the left, loosen the right jam nut and adjust the tracking set screw on the front of the traction control (Figure 57).
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If the traction unit veers to the right, loosen the left jam nut and adjust the tracking set screw on the front of the traction control (Figure 57).
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Repeat steps 1 through 4 until the machine drives straight in the full forward position.
Important: Ensure that the tracking set screws touch the stops in the full forward position to avoid over stroking the hydraulic pumps.
Hydraulic System Maintenance
Hydraulic System Safety
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Seek immediate medical attention if fluid is injected into skin. Injected fluid must be surgically removed within a few hours by a doctor.
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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.
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Keep your body and hands away from pinhole leaks or nozzles that eject high-pressure hydraulic fluid.
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Use cardboard or paper to find hydraulic leaks.
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Safely relieve all pressure in the hydraulic system before performing any work on the hydraulic system.
Relieving Hydraulic Pressure
To relieve hydraulic pressure while the engine is on, disengage the auxiliary hydraulics and fully lower the loader arms.
To relieve the pressure while the engine is off, move the auxiliary-hydraulics lever between the forward and reverse flow positions to relieve auxiliary hydraulic pressure, and cycle the loader-arm/attachment-tilt lever between the forward positions to lower the loader arms (Figure 58).
Hydraulic Fluid Specifications
Maintenance Service Interval | Maintenance Procedure |
---|---|
Every 100 hours |
|
Every 1,500 hours |
|
Hydraulic-Tank Capacity: 45 L (12 US gallons)
Use only 1 of the following fluids in the hydraulic system:
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Toro Premium Transmission/Hydraulic Tractor Fluid (refer to your Authorized Toro Dealer for more information)
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Toro PX Extended Life Hydraulic Fluid (refer to your Authorized Toro Dealer for more information)
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If either of the above Toro fluids are not available, you may use another Universal Tractor Hydraulic Fluid (UTHF), but they must be only conventional, petroleum-based products. The specifications must fall within the listed range for all the following material properties and the fluid should meet the listed industry standards. Check with your hydraulic fluid supplier to determine if the fluid meets these specifications.
Note: Toro will not assume responsibility for damage caused by improper substitutions, so use only products from reputable manufacturers who will stand behind their recommendations.
Material Properties Viscosity, ASTM D445 cSt at 40°C: 55 to 62 cSt at 100°C: 9.1 to 9.8 Viscosity index, ASTM D2270 140 to 152 Pour Point, ASTM D97 -37 to -43°C (-35 to -46°F) Industry Standards API GL-4, AGCO Powerfluid 821 XL, Ford New Holland FNHA-2-C-201.00, Kubota UDT, John Deere J20C, Vickers 35VQ25 and Volvo WB-101/BM Note: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic system fluid is available in 20 ml (2/3 fl oz) bottles. One bottle is sufficient for 15 to 22 L (4 to 6 US gallons) of hydraulic fluid. Order Part No. 44-2500 from your Authorized Service Dealer.
Checking the Hydraulic-Fluid Level
Maintenance Service Interval | Maintenance Procedure |
---|---|
Every 25 hours |
|
Important: Always use the correct hydraulic fluid. Unspecified fluids will damage the hydraulic system. Refer to Hydraulic Fluid Specifications.
-
Remove any attachments.
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Park the machine on a level surface, lower the loader arms, and fully retract the tilt cylinder.
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Shut off the engine, remove the key, and allow the engine to cool.
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Open the hood.
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Clean the area around the filler neck of the hydraulic tank (Figure 59).
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Remove the filler-neck cap and check the fluid level on the dipstick (Figure 60).
Note: The fluid level should be between the marks on the dipstick.
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If the level is low, add enough fluid to raise it to the proper level.
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Install the filler-neck cap.
-
Close the hood.
Replacing the Hydraulic Filter
Maintenance Service Interval | Maintenance Procedure |
---|---|
After the first 8 hours |
|
Every 200 hours |
|
Important: Do not substitute an automotive oil filter; otherwise, severe hydraulic system damage may result.
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Park the machine on a level surface, engage the parking brake, and lower the loader arms.
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Shut off the engine and remove the key.
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Open the rear access cover.
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Place a drain pan under the filter (Figure 61).
-
Remove the old filter (Figure 61) and wipe the surface of the filter adapter gasket clean.
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Apply a thin coat hydraulic fluid to the rubber gasket on the replacement filter.
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Install the replacement hydraulic filter onto the filter adapter (Figure 61). Tighten it clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 3/4 turn.
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Clean up any spilled fluid.
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Start the engine and let it run for about 2 minutes to purge air from the system.
-
Shut off the engine, remove the key, and check for leaks.
-
Check the fluid level in the hydraulic tank and add fluid to raise the level to the mark on dipstick; refer toChecking the Hydraulic-Fluid Level.
Important: Do not overfill the tank.
-
Close the rear-access cover.
Changing the Hydraulic Fluid
Maintenance Service Interval | Maintenance Procedure |
---|---|
Every 400 hours |
|
-
Park the machine on a level surface.
-
Raise the loader arms and install the cylinder lock.
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Shut off the engine, remove the key, and allow the engine to cool.
-
Open the hood.
-
Remove the hydraulic-tank cap and dipstick (Figure 62).
Note: The filler cap is behind the front screen. If you want to improve your access to it, remove the screen.
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Place a large drain pain capable of holding 57 L (15 US gallons) under the drain plug on the front of the machine (Figure 63).
-
Remove the drain plug and allow the oil to drain into the pan (Figure 63).
-
When finished, install and tighten the drain plug.
Note: Dispose of the used oil at a certified recycling center.
-
Fill the hydraulic tank with hydraulic fluid as specified in Hydraulic Fluid Specifications.
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Start the engine and let it run for a few minutes.
-
Shut off the engine.
-
Check the hydraulic-fluid level and add fluid to fill the tank if necessary; refer to Hydraulic Fluid Specifications.
-
Close the hood.
Cleaning
Removing Debris
Maintenance Service Interval | Maintenance Procedure |
---|---|
Before each use or daily |
|
Important: Operating the engine with blocked screens and/or cooling shrouds removed will result in engine damage from overheating.
-
Park the machine on a level surface and lower the loader arms.
-
Shut off the engine, remove the key, and allow the engine to cool.
-
Open the hood and secure the prop rod.
-
Clean any debris from the front and side screens.
-
Wipe away debris from the air cleaner.
-
Clean any debris buildup on the engine and in the oil cooler fins with a brush or blower.
Important: Operating the engine with blocked screens and/or cooling shrouds removed will result in engine damage due to overheating.
-
Clean debris from the hood opening, muffler, heat shields, and radiator screen (if applicable).
-
Close the hood.
Cleaning the Chassis
Maintenance Service Interval | Maintenance Procedure |
---|---|
Every 100 hours |
|
Using a flashlight, open the hood and inspect the area under the engine regularly. When the debris is 1 to 2 inches deep, have an Authorized Service Dealer remove the rear of the machine, fuel tank, and battery, and flush the chassis clean.