Fan Replacement
Fan Replacement^ Tools Required
- J 38425 Fan Hub Wrench
- J 38426 Pulley Strap Wrench
Removal Procedure
Notice: If a fan blade is bent or damaged, do not repair and use the damaged part. Replace a bent or damaged fan assembly with a new fan assembly. Using a fan with a different diameter, pitch, number of blades, or type of blade material may effect the cooling efficiency, performance and engine noise level.
1. If a fan assembly fails, inspect the hub and the drive components. A fan assembly may fail due to an imbalance in the hub. This type of failure may not be the fault of the blades.
2. Remove the upper fan shroud.
3. Insert the J 38426 around the pulley in order to secure the pulley. Insert the J 38425 onto the fan clutch nut.
4. Remove the following components:
^ The fan (1)
^ The fan clutch (2)
5. Inspect the following components for cracks, distortion, or other damage:
^ The belts
^ The hub
^ The adapter
^ The pulley
6. Replace the components, as necessary.
Installation Procedure
Notice: Refer to Fastener Notice in Service Precautions.
1. Install the following components
^ The fan (1)
^ The fan clutch (2)
^ Tighten the fan clutch nut to 145 Nm (107 ft. lbs.).
2. Install the upper fan shroud.