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ELECTRICAL TROUBLESHOOTING (Continued)
Spin Torque Pot (TORQ)
is not set correctly
(SSP) is not working
Worn Motor Brushes
Possible Cause Checkout Procedure
H. Check remote torque pot
(TORQ) on the (SDC)
board.
I. (SSP) (10K) Remove 3
Remote Speed wires.
Red wire to term 2
White wire to term 1
Black wire to term 3
J. Inspect Motor Brushes
(TORQ) on (SDC) board, should be set
as labled on page 25. Adjust if incorrect and
check Spin Drive Function. All
Potentiometers are set correctly
Yes--Go to Step I. next
No--Retest after adjustments.
Check for 10,000 ohm
Red wire to white wire
Full CCW--0 ohms
Full CW-10,000 ohms
Red wire to black wire
Full CCW--10,000 ohms
Full CW--0 ohms
Yes--replace (SDC)
No--replace (SSP)
Remove the brushes one at a time and
maintain orientation for reinsertion. See if
brush is worn short 3/8" (10 mm) minimum
length.
Yes--replace motor brushes
No--replace Spin Drive Motor
DISCONNECT POWER
FROM MACHINE !