Caterpillar Compact Track Loader 277

Bogie and Idler Oil Level - Check

Note: Inspect the seals on the tubes for the bogies and the idlers during the walk around inspection. If a seal is leaking, replace the seal.

Note: The 267B (S/N: CYC 954-UP), 277B (S/N: MDH 3315-UP), and 287B (S/N: ZSA 2205-UP) have sealed bearings. The bogie is maintenance free. If maintenance is required on the bogie, please refer to your Caterpillar dealer.

Personal injury or death can result from servicing the track.

The machine must be on a hard, level surface before the track is removed or personal injury or death could occur.

1. Park the machine on a hard, level surface.

Personal injury or death can result from improper lifting or blocking.

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.

NOTICE: Mixing ELC with other products will reduce the effectiveness of the coolant. This could result in damage to cooling system components.

Note: The machine was shipped from the factory with Extended Life Coolant (ELC) in the cooling system.

Drain the coolant whenever the coolant is dirty or whenever the coolant is foaming.

Allow the machine to cool before you change the coolant.

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

Remove the drain plug and allow the coolant to drain into a suitable container.

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:

Refer to the Service Manual for the complete adjustment procedure for the engine valve lash.

A qualified mechanic should adjust the engine valve lash and the fuel injector timing because special tools and training are required.

Hydraulic System Oil Filter - Replace

Sign off on the maintenance procedure