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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
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Work Order Templates

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Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Parts

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Drive Motor
B2 Rollers
Tensioning System
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Caterpillar Compact Track Loader 257

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Maintenance Plans for Caterpillar Compact Track Loader Model 257

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3000 Hourly or 3 Yearly Compact Track Loader Maintenance

Cooling System Coolant Extender (ELC) - Add

WARNING: Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure.

When a Caterpillar Extended Life Coolant is used, an extender must be added to the cooling system periodically.

1. Open the engine access door. Refer to Operation and Maintenance Manual, “Access Doors and Covers”.

2. Tilt the radiator guard upward. Refer to Operation and Maintenance Manual, “Radiator Tilting”.

3. Slowly loosen the radiator cap in order to relieve system pressure. Remove the radiator cap.

4. If necessary, drain enough coolant from the radiator in order to allow the addition of the coolant additive.

5. Add 0.17 L (0.18 qt) of cooling system additive.

6. Inspect the radiator cap and the gasket. If the cap or the gasket is damaged, replace the cap. Install the radiator cap.

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3000 Hourly or 2 Yearly Compact Track Loader Maintenance

Cooling System Coolant Extender (ELC) - Add

WARNING: Pressurized system: Hot coolant can cause serious burn. To open cap, stop engine, wait until radiator is cool. Then loosen cap slowly to relieve the pressure.

When a Caterpillar Extended Life Coolant is used, an extender must be added to the cooling system periodically.

1. Open the engine access door. Refer to Operation and Maintenance Manual, “Access Doors and Covers”.

2. Tilt the radiator guard upward. Refer to Operation and Maintenance Manual, “Radiator Tilting”.

3. Slowly loosen the radiator cap in order to relieve system pressure. Remove the radiator cap.

4. If necessary, drain enough coolant from the radiator in order to allow the addition of the coolant additive.

5. Add 0.17 L (0.18 qt) of cooling system additive.

6. Inspect the radiator cap and the gasket. If the cap or the gasket is damaged, replace the cap. Install the radiator cap.

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3 Yearly Compact Track Loader Maintenance

Seat Belt Replacement

Is the seat belt within three years of the date of installation or within five years of the date of manufacture?

If the seat belt is within the specified time frame, proceed with the replacement. If not, skip the replacement.

Is the seat belt extension present?

If the seat belt extension is present, proceed with the replacement. If not, skip the replacement.

Sign off on the seat belt replacement

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1000 Hourly or 6 Monthly Compact Track Loader Maintenance

Engine Crankcase Breather - Clean

Note: This type of engine crankcase breather is used on naturally aspirated engines only.

Note: Ensure that the area around the vent hole on the breather cover is clean and that the vent hole is not restricted. Ensure that the breather hose is installed correctly, so that the hose does not contact other parts. Ensure that the components of the breather assembly are seated in the correct positions. Otherwise, engine damage could result.

1. Open the engine access door. Refer to Operation and Maintenance Manual, “Access Doors and Covers”.

2. Tilt the radiator upward. Refer to Operation and Maintenance Manual, “Radiator Tilting”.

3. Loosen the hose clamps (1) for the breather hose. Remove the breather hose.

4. Remove the screws (3). Remove the breather cover (4).

5. Remove the diaphragm assembly (5). The diaphragm assembly consists of the diaphragm and the locating ring. Remove the spring (6).

6. Clean the following items with a clean, nonflammable solvent:

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500 Hourly or 3 Monthly Compact Track Loader Maintenance

Fuel System Primary Filter (Water Separator) Element - Replace

Open the engine access door. Refer to Operation and Maintenance Manual, “Access Doors and Covers”.

Open the drain on the fuel filter/water separator (2). Allow the water and fuel to drain into a suitable container.

Support the fuel filter/water separator and rotate the locking ring (1) counterclockwise. Remove the fuel filter/water separator.

Clean the mounting base for the fuel filter/water separator.

Install the new fuel filter/water separator. Rotate the locking ring clockwise in order to fasten the fuel filter/water separator to the mounting base.

Prime the fuel system in order to fill the fuel filter/water separator with fuel. Refer to Operation and Maintenance Manual, “Fuel System Priming Pump - Operate”.

Close the engine access door.

500 Hourly Compact Track Loader Maintenance: Hydraulic Oil Sample - Obtain

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