Changing Transmission Oil and Filter (2025R)

CAUTION: Touching hot surfaces can burn skin. The engine, components, and fluids will be hot if the engine has been running. Allow the engine to cool before servicing or working near the engine and components.

IMPORTANT: Contamination of hydraulic fluid could cause transmission damage or failure. Do not remove cap from fill opening unless absolutely necessary.

Severe or unusual conditions may require a more frequent service interval.

1. Run engine a few minutes to warm the transmission oil.

2. Park machine safely. (See Parking Safely in the Safety Section.)

3. 
   LVAL38548-UN-20SEP12

   A - Two Transmission Drain Plugs

   Position drain pan under the two transmission drain plugs (A). Remove the drain plugs to drain the transmission and rear axle housing.

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4. IMPORTANT: Use appropriate tool to remove/install transmission oil filter to avoid damaging filter canister.

   
   LVAL38549-UN-20SEP12

   B - Transmission Oil Filter

   Replace transmission oil filter (B) by turning counterclockwise to remove and clockwise to install new oil filter.

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5. 
   LVAL38550-UN-20SEP12

   C - Quick-Locking Pin

   D - Hinge Pin

   E - Two Bolts And Bushing

   F - Sway Chain Linkage

   G - Right Draft Arm

   H - Oil Strainer Cover

   Remove quick-locking pin (C) from right side of hinge pin (D).

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6. Remove two bolts and bushing (E).

7. Slide hinge pin to the left and allow sway chain linkage (F) and right draft arm (G) to drop.

8. Position a drain pan under the transmission oil strainer cover (H).

9. 
   LVAL38590-UN-26SEP12

   I - Four Magnets

   J - Suction Screen

   K - Cover

   L - O-Ring

   M - Spring

   N - Washer

   O - Bolt

   Remove and clean the four magnets (I) inside suction screen (J).

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10. Clean screen (J) and cover (K) with a mild solvent. Allow to dry.

11. Inspect O-ring (L) for damage or cracking. Replace if necessary.

12. Install four magnets (I) into screen (J).

13. Install screen into transmission housing.

14. NOTE: Apply hydraulic oil to O-rings to ease assembly and prevent damage to sealing surfaces.

    Install O-ring (L) onto cover (K).

15. Install spring (M) and cover (K) with the O-ring onto transmission housing and secure with retaining washers (N) and bolts (O).

16. Install and tighten drain plugs.

17. IMPORTANT: Help prevent dirt and other contaminants from entering the transmission. Clean area around fill cap before removing.

    Do not overfill transmission. Oil expands during operation and could overflow.

    
    LVAL38552-UN-26SEP12

    P - Transmission Fill Cap

    Remove fill cap (P).

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18. Add recommended transmission oil into fill opening until oil level is between 1/2 - 3/4 of the sight glass.

19. Install fill cap.

20. Start engine. Check for oil leaks.

21. Stop engine.

22. Check transmission oil level. Add oil if necessary.