Diesel Data: Automotive Repair

Radiator Cooling Fan Motor: Service and Repair

REMOVAL PROCEDURE

Caution: Keep hands, tools, and clothing away from the electric engine coolant fans in order to help prevent personal injury. These fans are electric and can turn on whether or not the engine is running. The fans can start automatically with the ignition in the ON position.





1. Remove the cooling fan assembly.
2. Remove the cooling fan heat shield(s).
3. Disconnect the cooling fan motor electrical connector(s).





4. Remove the cooling fan blade nut.
5. Remove the cooling fan blade.

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.

6. Inspect the cooling fan for the following conditions:
- Bent or cracked cooling fan blades
- Smoothness of the cooling fan blade mating surfaces
- Remove burrs or other imperfections as necessary





7. Remove the cooling fan motor bolts.
8. Remove the cooling fan motor.


INSTALLATION PROCEDURE





1. Install the cooling fan motor.

Notice: Refer to Fastener Notice in Service Precautions.

2. Install the cooling fan motor bolts.
- Tighten the cooling fan motor bolts to 6 Nm (53 inch lbs.).





3. Install the cooling fan blade.
4. Install the cooling fan blade nut.
- Tighten the cooling fan blade nut to 6 Nm (53 inch lbs.).





5. Connect the cooling fan motor electrical connector(s).
6. Install the cooling fan heat shield(s)
7. Install the cooling fan assembly.