Radiator

Clean the radiator every 1,000 operating hours. Blow compressed air from the outside of the coil in toward the fan to clean coil (the direction opposite the normal air flow). Inspect the coil and fins for damage and repair if necessary.

    Notice
  • Equipment Damage
  • The air pressure should not be high enough to damage coil fins.

Parent topic: Structural/Accessory Maintenance

Radiator Fan Motor

Starting in June of 2015 the radiator fan motor changed from a one piece fan and motor to a separate fan and fan motor.

1. One Piece Fan Motor
2. Separate Fan and Fan Motor

Fan Installation for Separate Fan and Fan Motor

When installing the fan on the fan motor, the fan and fan shroud must be properly aligned for proper air flow.

  1. Place the fan assembly on the fan motor shaft so and position it so the inside fan blade tip is 7.0 to 9.0 mm (0.28 to 0.35 in.) from the fan shroud as shown below.

  2. Finger tighten the hub bolts till the bolt heads are flush with the hub face.

  3. Using a wrench, do a full turn on each bolt alternatively. Repeat this step until some torque builds.

  4. Use a torque wrench set at 7.0 to 9.0 N.m (5.2 to 6.6 ft-lb) to complete the tightening sequence on each hub bolt alternatively.

  5. Tighten the set screw to a torque of 2.5 to 2.9 N.m (1.8 to 2.1 ft-lb).

    1. Hub Bolts
    2. Set Screw