TROUBLE, SYMPTOM AND CONDITION
PROBABLE CAUSE
TEST, CHECK, AND/OR REMEDY
MACHINE WILL NOT OPERATE (CONTINUED)
2. Line contactor fails to close (continued)
Step 4. Defective coil in line contactor.
Replace contactor if coil is open or shorted.
Step 5. Cable broken at line contactor.
Repair broken cable as necessary.
3. Line contactor chatters.
Step 1. Input cables too small or too long.
Use input cables of sufficient capacity for proper
operation of the machine. Refer to Section 1-2, Fig. 1
for proper cable size to be used.
Step 2. Faulty contactor coil.
Check coil voltage. If correct, replace contactor.
Step 3. Low line voltage.
Check line voltage. Correct problem as necessary.
4. Contactor operates and blows line fuses.
Step 1. Wrong line voltage.
Check nameplate of machine for line voltage to be used.
Then measure line voltage. If line voltage is of improper
value, correct this condition as is necessary to provide
proper voltage input to the machine.
Electrical Troubleshooting Chart Figure 1
(Sheet 2 of 7 Sheets)
OM-2010
April 10/89 Revised 3-4
Page 5
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