Replacing VARI-COOL™ Fan Belt (Version B)-9230 9.0 L Engine1. For disassembly perform the following: Raise hood.2. Remove cap screws (B) and front right-hand side panel (A).
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VARI-COOL is a trademark of Deere & Company | RW29387,000011F -19-30APR09-1/7 |
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3.
Remove cap screws (A) and finger protection (B).
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IMPORTANT: Be careful not to damage sheave or belt when forcing outer sheave outward. 4. Locate control valve in gudgeon hinge location (A) under rear left-hand upper gusset of main frame. IMPORTANT: Bleed screw (B) does not need to be completely removed for bleeding. Loosen bleed screw only enough to bleed oil back into reservoir (a maximum of two full turns). Bleed screw (B) is an internal drain that must be closed after sheave has been forced open. 5. Loosen bleed screw jam nut and bleed screw (B) 1-2 turns. IMPORTANT: Be careful not to damage sheave or belt when forcing inner sheave rearward. NOTE: Retain vent adapter screw for reuse. 6. Remove vent adapter (C) from vent hole, then remove service cap screw (D) from storage hole. 7. Install service cap screw through vent hole and thread into inner sheave housing. 8. Tighten to carefully pull inner sheave (E) rearward until it stops. 9. Close bleed screw (B) and tighten to specification. Specification
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10.
Using a wrench (A) on a square tab, hold outer sheave (B) and remove cap screws (C).
IMPORTANT: When prying outer sheave (B) forward, make sure that belt contact surface of pulley is not damaged. 11. Pry outer sheave (B) evenly off shaft to expose belt (D).
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12.
Remove nuts (A) and position fan (B) forward.
13. Remove belt (C) between fan (B) and fan hub (D). Discard belt. 14. Install new fan belt on drive pulley.
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15.
Install fan in reverse order on driven assembly. Tighten fan nuts to specification.
Fan-to-Driven Assembly - Specification
16. For reassembly perform the following: Pull or pry belt (A) into driven sheave (B) IMPORTANT: Mating surfaces of sheave and shaft must be clean and free of oil or lubricant when installing drive sheave on shaft. Make sure that belt remains loose and is not pinched between pulleys. 17. Install drive sheave (C) making sure cap screw holes align in the sheave. 18. Position belt (A) to outer edge of drive. 19. Hold drive sheave with wrench and tighten three cap screws to specification. Drive Pulley-to-Drive - Specification
NOTE: Belt will be loose on the drives until tractor is started and run. 20. Check bleed screw to make sure it is closed and belt is loose between pulleys. |
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IMPORTANT: If service cap screw is left in vent hole, fan cannot adjust causing tractor to overheat. 21. Remove the service cap screw from vent hole and reinstall vent adapter screw (A) in original location. 22. Reinstall service cap screw (B) in storage hole. Torque to specification.
Fan Drive Hardware - Specification
23. Install finger guard and right-hand side shield. Torque to specification. Side Panel Cap Screws - Specification
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. 24. Start engine and run at idle for 15 seconds. Turn off engine. 25. Remove right-hand side shield and check to make sure that belt is correctly positioned between pulleys.
26. Install right-hand side shield. IMPORTANT: Internal bleed screw must be closed for proper tension to be applied to the belt once tractor is started. 27. Check internal bleed screw to make sure it is closed. |
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CAUTION:
Keep hands away from exposed fan blades. Blades have sharp edges which may result in personal injury.
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