MALFUNCTIO!N
TEST OR INSPECTION
CORRECTIVE ACTION
WELDING GUN
1 . WELDING GUN WILL NOT FEED WIRE.
Step 1. Check to see if motor is burned out.
Replace motor if burned out
Step 2. Check to see if inching switch is inoperative.
Replace inching switch if necessary.
Step 3. Check to see if wiring in handle is faulty.
Repair or replace wiring as necessary.
2 . WELDING GUN WILL NOT OPERATE.
Step 1. Check for faulty components in control monitor.
Replace faulty components as necessary.
Step 2. Check for faulty components in welding gun handle.
Replace faulty components as necessary.
Step 3. Welding machine will not function properly.
Repair welding machine per TM 5-3431-221-15.
5-2