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TROUBLE SHOOTING
THE POWER FEED DOES NOT WORK AND THE POWER INDICATOR DOES NOT
GLOW:
1.Ensure there is no problem with power supply.
2.Check if the circuit breaker on the power feed unit kicked out.
3.Check for proper contact at the ON-OFF switch.
THE MOTOR DOES NOT WORK WHEN PUSH DIRECTION LEVER TO EITHER LEFT
OR RIGHT:
•
1.0pen power feed unit by loosening
bottom 4 hex screws.
2.Check if the carbon brush is making proper contact with the armature or if carbon brus
h is all used up already.
3.Check that internal wiring to the printed circuit board ard all connected.
4.Check that the potentiometer
connections
ard intact and that it is functioning
properly.
SPEED CONTROL ERRATIC OR ALWAYS AT HIGH SPEED ONLY:
1.Check rapid micro switch.
Make sure it is not stuck.
If its position
is too high up,
lightly tap on it to lower.
2.Check V.R. Is in good connection
and proper function.
BREAKER ALWAYS KICKS OUT ON POWER FEED UNIT UNDER NORMAL USAGE:
Short circuit in the armature, need to be replaced new armature.
CURRENT LEAKAGE:
1.Check limits switch assembly for possible short.
2.Check armature by first removing the brush cap.
3.Measure for short with an ohmmeter across the carbon brush and the outer cover of
the power feed unit.
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