36
PD17A ROTATION INDICATION PROXIMITY SENSOR
Early PD17A models have a rotation indicator proximity sensor and hub between the motor and the hoist. If the sensor is
removed or replaced, use the following procedure for adjustment and testing. Refer to the drawing below for item numbers.
If sensor hub is not correctly positioned with a lobe directly under the sensor port, proper adjustment may not be possible
and severe damage to the sensor and internal hoist components may result.
CAUTION
!
!
1. Install a new O-ring (item 108) onto motor pilot.
2. Install sensor hub (item 123) onto motor sha
ft
, positioning the sensor hub so that one of the lobes will be directly under
the sensor port.
3. Install the motor onto the hoist.
4. Install capscrews and lockwashers (items 101 & 102) securing the motor to motor adapter.
5. Install
fl
atwasher (item 121) and O-ring (item 122) onto new sensor (item 120).
6. Apply a small amount of silicone sealant to the threads just below the washer and O-ring.
(DO NOT apply sealant to the
end of the sensor or to the threads of the sensor port where it could be pushed into the hoist.)
7. Install the sensor into the motor adapter until it contacts the sensor hub.
8. Back sensor out of the port 2 complete turns.
9. Attach wire harness to sensor to verify proper sensor operation. IT IS NOT necessary to operate the hoist motor.
10. If sensor light is on, hold sensor from turning and tighten jam nut against motor adapter. If light is o
ff
or blinks intermit-
tently, adjust sensor inward toward sensor hub until light remains on, then tighten jam nut.
