Fan Clutch Replacement W/ RPO VO8 Heavy Duty

1. Disconnect the negative battery cable. Refer to

   Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

   in General Information.
2. Remove the radiator fan upper shroud bolts and the shroud. Refer to Fan Shroud Replacement .



3. Remove the fan clutch nuts.
4. Remove the fan blade with the clutch.
5. Remove the fan clutch bolts.

Caution: If a fan blade is bent or damaged in any way, do not repair or reuse the damaged part. Always replace a bent or damaged fan blade. Fan blades that have been damaged can not be assured of proper balance and could fail and fly apart during subsequent use. This creates an extremely dangerous situation.

The fan blades must remain in proper balance. You cannot assure fan blade balance once a fan blade has been bent or damaged. A fan blade that is not in proper balance could fail and fly apart during use, creating an extremely dangerous situation.

Important: Place the clutch in an upright position after removing the clutch. Laying the clutch flat may result in fluid leaking from the clutch.

6. Remove the fan blade from the clutch.
7. Inspect for bent or cracked fan blades.
8. Inspect the mating surfaces for smoothness. Remove burrs or other imperfections as necessary.

1. Install the fan blade to the clutch.
2. Install the fan clutch bolts.

Tighten
Tighten the bolts to 24 N·m (18 lb ft).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

3. Install the clutch and the fan blade to the fan pulley bracket.
4. Install the fan clutch nuts.

Tighten
Tighten the nuts to 24 N·m (18 lb ft).

5. Install the radiator fan upper shroud and the shroud bolts. Refer to Fan Shroud Replacement .
6. Connect the negative battery cable.

Tighten
Tighten the negative battery cable bolt to 17 N·m (13 lb ft).