Blower Wiper Arm or Feedback Potentiometer
Remove vacuum valve and spring, and vacuum motor and power spring (see above). Lift blower resistor wiper arm and feedback potentiometer arm off the blower resistor circuit board
CAUTION:
(Take care not to lose single ball bearing located in bearing cup on resistor board).
Separate blower resistor wiper arm from feedback potentiometer arm
CAUTION:
(Take care not to lose two single ball bearings and make certain they are properly located in bearing cups on wiper arm).
Install these parts by reversing removal procedure and make certain that all ball bearings are properly located in bearing cups.