Rapid-Air PALLET MASTER (PMDH): PMDH35 & PMDH50. 115VAC, 1PH, 60HZ User Manual
Page 11

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TROUBLE SHOOTING GUIDE
MAIN SWITCH ON BUT NOT LIT
1. CB tripped
a. Reset CB
2. Unit not plugged into main power.
a. Plug into main power source.
3. No power in incoming line.
a. Check outlet.
b. Check power cord.
4. Loose wiring
a. Check terminals and connections.
MOTOR CREEPS IN STOP POSITION
1. “Min” speed pot on RAMM board out of adjustment.
UNIT TURNS BUT WON’T JOG
1. Jog function was not selected
a. Select jog.
2. Jog speed has not been set up
a. Call factory.
UNIT ON BUT MOTOR WON’T RUN. (ARMATURE VOLTAGE PRESENT - ON
RAMM BOARD)
1. Check motor wiring
a. Replace motor cord or correct motor wiring. Call factory.
2. Check motor
a. Worn brushes or motor defective. Call factory.
b. Check for oil in motor, gear box seal could have ruptured.
.
UNIT ON BUT MOTOR WON’T RUN. (NO ARMATURE VOLTAGE ON RAMM
BOARD)
1. Selector switch not in run position.
a. Turn selector switch to run position.
2. If running with a dancer arm control.
a. Check that the external/loop arm function is in the loop arm position.
3. If running with external control.
a. Check that the external/loop arm function is in the external position.
4. Loop height switch setting too high.
a. Set height setting to “0”.
5. Taut stock switch has been tripped.
a. Reset the switch on the dancer arm