Removing and Installing Fan Belt

1. 
   RXA0085938-UN-18JAN06

   Remove Front Side Panel

   
   RXA0096735-UN-20DEC07

   Bleeding Drive Assembly

   A - Side Panel

   B - Cap Screws

   C - Cap Screws

   D - Diverter Panel

   E - Jam Nut

   F - Bleed Screw

   Raise hood.

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2. Remove four cap screws (B) and right-hand front side panel (A).

3. Remove three cap screws (C) and lift diverter panel (D) out.

   IMPORTANT: Removing bleed screw will drain oil. Loosen bleed screw only enough to bleed oil back into reservoir (a maximum of two full turns).

4. Loosen jam nut (E), then loosen bleed screw (F).

5. Remove vent adapter (A) from vent hole, then remove service cap screw (B) from storage hole.

   
   RXA0096736-UN-24JUL08

   Pull Inner Sheave Rearward

   A - Vent Adapter

   B - Service Cap Screw

   C - Piston Plate

   D - Rear Sheave

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6. Install service cap screw through vent hole in piston plate (C) and thread into inner sheave housing.

7. Tighten to carefully pull rear sheave (D) rearward until it stops.

   NOTE: Bleed screw must be closed for proper tension to be applied to belt once tractor is started.

8. Close bleed screw, tighten to specification and tighten jam nut.

   Item	Measurement	Specification
   Bleed Screw	Torque	25 N·m 221 lb-in.

   Tractor may be equipped with either a 3 cap screw or a 6 cap screw fan drive.

   
   RXA0108318-UN-23JUN10

   For Three Cap Screw Sheave Remove Cap Screws And Outer Sheave

   
   RXA0111804-UN-28OCT10

   For Six Cap Screw Sheave Remove Cap Screws And Outer Sheave

   A - Cap Screws

   B - Outer Sheave

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9. Remove cap screws (A).

   IMPORTANT: When prying outer sheave (B) forward, make sure that belt contact surface of pulley is not damaged.

10. Pry outer sheave evenly off shaft.

11. Remove belt through opening between fan and fan hub.

12. Discard old belt.

13. Install new fan belt (A) between fan and fan hub.

    
    RXA0108320-UN-22JUN10

    Install Belt On Three Cap Screw Shaft

    
    RXA0095841-UN-29AUG07

    Install Front Sheave And Three Cap Screws

    
    RXA0111805-UN-28OCT10

    Install Belt On Six Cap Screw Shaft

    
    RXA0111806-UN-28OCT10

    Install Front Sheave And Six Cap Screws

    A - Belt

    B - Drive Shaft

    C - Front Sheave

    D - Cap Screws

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14. Pull or gently pry belt onto drive shaft (B) and against rear sheave.

    IMPORTANT: When installing front sheave (C), make sure that belt remains loose and is not pinched between sheaves.

    Clean mating surfaces of front sheave and shaft.

15. Install front sheave.

16. Tighten cap screws (D) to specification.

    Item	Measurement	Specification
    3 Cap Screw Drive Pulley-to-Drive
    Cap Screws	Torque	130 N˙m (96 lb-ft)
    6 Cap Screw Drive Pulley-to-Drive
    Cap Screws	Torque	37 N˙m (27 lb-ft)

17. Check bleed screw to make sure it is closed and belt is loose between sheaves.

    IMPORTANT: If service cap screw is left in vent hole, fan cannot adjust causing tractor to overheat.

    
    RXA0097840-UN-25APR08

    Return Vent Adapter To Vent Hole And Service Cap Screw To Storage Hole

    A - Vent Adapter

    B - Service Cap Screw

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18. Remove vent adapter (A) from storage hole and service cap screw (B) from vent hole.

19. Install vent adapter in vent hole and service cap screw in storage hole. Torque to specification.

    Item	Measurement	Specification
    Fan Drive Hardware
    Vent Adapter	Torque	24 N˙m (18 lb-ft)
    Service Cap Screw	Torque	13 N˙m (9 lb-ft)

20. Install diverter panel and right-hand side front shield and torque to specification.

    Item	Measurement	Specification
    Diverter Panel Cap Screws
    Cap Screw	Torque	20 N˙m (15 lb-ft)

21. NOTE: Starting engine with belt loose between pulleys allows belt to climb out of groove between pulleys. Belt will correctly position itself within a few seconds after engine is started.

    Start engine and run at idle for 15 seconds. Turn off engine.

22. Remove right-hand side front shield and make sure that belt is correctly positioned between pulleys.

    CAUTION: Keep hands away from exposed fan blades. Blades have sharp edges which may result in personal injury.

23. Install right-hand front side panel.