TM 5-6675-328-14
Table 5-4. ORGANIZATIONAL TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
DRIVE MOTOR DOES NOT OPERATE - Cont
Step 5.
Remove receptacle and check for 120 V ac input.
(a) If present, replace receptacle (paragraph 1-16.5).
(b) If not present, repair or replace defective wiring.
Step 6.
Using multimeter, check for continuity of power cord from controller to motor.
(a) If continuity exists, replace drive motor (paragraph 5-16.1).
(b) If continuity does not exist, replace controller (paragraph 5-16.6).
2.
DRIVE MOTOR OPERATES BUT HEADSTOCK SPINDLE DOES NOT ROTATE.
Step 1.
Check headstock spindle lock for engagement.
Disengage headstock spindle lock.
Step 2.
Check drive belt for breakage, slippage, or improper adjustment.
Replace broken or damaged drive belt and adjust (paragraph 5-16.2).
Step 3.
Check for frozen headstock bearings.
Replace damaged headstock (paragraph 5-16.3).
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