525C, 535C and 545C Wheel Skidders Caterpillar


Transmission Oil - Change

Usage:

525C 525


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.

Dispose of all fluids according to local regulations and mandates.


  1. Operate the engine in order to warm the oil. Park the machine on a level surface and lower the decking blade to the ground with slight down pressure.

  2. Engage the parking brake. Stop the engine.

  3. Remove the access plate underneath the machine.

  4. Remove the transmission drain plug at the bottom of the transmission. Drain the oil into a suitable container.

    Note: The transmission is equipped with an ecology drain valve.

  5. Clean the drain plug and install the drain plug. Install the access plate.

  6. Remove the transmission guards. The first guard weighs approximately 45 kg (95 lb). The second guard weighs approximately 20 kg (45 lb).


    Illustration 1g00701384


    Illustration 2g00586353

  7. Remove the magnetic strainer cover.

    Note: The first photo shows a machine that is equipped with a secondary steering pump and electric motor. The second photo shows a machine that is not equipped with a secondary steering pump and electric motor.



    Illustration 3g00585943

  8. Remove suction screen (2) and tube (4) from the housing. Remove three magnets (3) from the tube.

  9. Wash the tube and the suction screen in a clean, nonflammable solvent.

  10. Use a cloth, a stiff bristle brush or pressurized air to clean the magnets.


    NOTICE

    Do not drop or rap the magnets against any hard objects. Replace any damaged magnets.


  11. Clean the cover and inspect cover seal (1). Replace the seal, if necessary.

  12. Install three magnets (3) on the tube. Insert suction screen (2) and tube (4) in the housing.

  13. Install the cover and the cover bolts.

  14. Replace the transmission oil filter.

    Reference: Refer to Operation and Maintenance Manual, "Transmission Oil Filter - Replace" for the correct procedure.



    Illustration 4g01135465

  15. Open the access door on the right side of the machine.


    Illustration 5g01135488

  16. Pull out the extendable oil filler tube for easier access and fill the transmission with oil.

    Reference: Refer to Operation and Maintenance Manual, "Capacities (Refill)" for the correct amount.

  17. Remove the transmission breather from the top of the dipstick tube. Wash the breather in a clean, nonflammable solvent. Install the breather.


    Illustration 6g01115803

  18. Open the access panel on the left side of the machine.


    Illustration 7g01119039

  19. Remove the transfer gear housing breather. Wash the breather in a clean, nonflammable solvent. Install the breather.

    Note: The photo shows a machine that is equipped with a secondary steering arrangement.

  20. Start the engine and run the engine at low idle.

  21. Disengage the parking brake. Apply the service brakes.

  22. Move the transmission control to FORWARD and to REVERSE in order to circulate the oil.

  23. Move the transmission control to the NEUTRAL position and engage the parking brake.

  24. Check for leaks under the machine.

  25. Check the transmission oil level.

    Reference: Refer to Operation and Maintenance Manual, "Transmission Oil Level - Check" for the correct procedure.

  26. If transmission oil level is low, add oil. Recheck the transmission oil level.

  27. Close the access door.

  28. Stop the engine.

  29. Close the access panel on the left side of the machine. Install the transmission guards underneath the machine.

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