TM 9-4940-549-14&P
Table 3-2. Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
Corrective Action
4.
Dynamotor-Welder Will Not Deliver AC When Internal Power Source Is
Used.
Power selector switch in OFF position.
Turn power selector switch to GEN.
AIR
COMPRESSOR
1.
Circuit breaker tripped.
Step 1.
Reset circuit breaker.
Step 2.
Overload circuit in starter control box tripped.
Push reset button.
If problem still exists, notify your supervisor.
Air Compressor Fails To Build Up Pressure In Receiver Tank.
2.
Step 1.
Receiver tank draincock open.
Close draincock.
Air hoses, lines or fittings leaking.
Step 2.
Tighten or replace hoses, couplings, or fittings.
Step 3.
Inlet air filter clogged.
Clean or replace inlet air filter (para. 3-13 and 14-5).
Air Compressor Overheats.
3.
Check for blockage of air to fan wheel.
Step 1.
Move any foreign object that is blocking air passage. Use com-
pressed air to remove any accumulation of dust or dirt.
3-9