Change Hydraulic Oil

  1. T8T2329
    T8T2329-UN-13APR15

    A - Vent Cap

    B - Drain Plug

    C - Access Cover

    Remove and retain hydraulic reservoir vent cap (A) to allow venting.



  2. Remove and retain drain plug (B) at bottom rear of hydraulic reservoir.

  3. Drain oil into an approved container.

    NOTE: Dispose of oil according to employer and government guidelines.

  4. While oil is draining into a container, replace hydraulic filters. See Change Hydraulic Filters in Maintenance—Every 1500 Hours section.

    NOTE: Be sure to replace tank cover with O-ring to maintain cleanliness of the system.

  5. IMPORTANT: Be careful not to damage or lose O-ring when removing access cover (C).

    After oil has finished draining, remove and retain cap screws and access cover and clean tank inner surface.

  6. Clean or replace O-ring and install access cover. Torque cap screws to specification.

    ItemMeasurementSpecification
    Hydraulic Reservoir Access Cover Cap ScrewsTorque49 N·m (36 lb.-ft.)

  7. Install previously removed drain plug.

  8. Fill hydraulic tank. See Add Hydraulic Oil in this section.

  9. Install previously removed vent plug.

  10. Prime hydraulic system by cranking engine ten sec. If engine starts before the ten sec., turn off switch to stop engine and crank engine again.

  11. Start engine and run for 5 min. Shut OFF engine.

  12. Check hydraulic system for leaks. Check sight gauges for oil level. Add more oil if necessary.

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