2. Check air supply for oil or a great deal of water. If there is oil or a great deal of water, the air must be filtered or the machine switched to nitrogen or bottled air.
3. Make sure the air pressure is set at 70 psi.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
The arc starts but sputters badly.
2. Make sure the air pressure is set at 70 psi (75 psi for a 50 ft. torch).
3. Possible fault in Output Power board.
1. Check the torch consumables to be sure they are in tight, not dirty or greasy and in good shape. Replace if necessary.
When the trigger is pulled air begins 1. Check the torch consumables to be to flow, but there is no pilot arc after sure they are not dirty or greasy,
at least 3 seconds.and are in good shape. Replace the consumables if necessary. Make sure the air pressure is set at 70 psi (75 psi for a 50 ft. torch).
2. Make sure there are no kinks or restrictions for air flow in the torch cable. Replace cable as needed.
3. If a slight thump cannot be felt in the torch when the trigger is pulled, check for loose connection in the torch head and solenoid assembly.
4. With machine turned off - input power removed, and torch and consumables connected - mea- sure resistance on Output Power board between B1 and B21. If >10Ω, possible fault in torch and cable assembly.
If all recommended possible areas of
5. Possible fault in Output board. misadjustment have been checked and the problem persists, Contact The air begins to flow and there is a 1. Check the torch consumables to your local Lincoln Authorized
very brief arc that snaps out consis- be sure they are in tight, not dirty Field Service Facility.
tently with repeated trigger pulls. or greasy and in good shape. Replace if necessary.
POSSIBLE
CAUSE
PROBLEMS
(SYMPTOMS)
RECOMMENDED
COURSE OF ACTION
Observe all Safety Guidelines detailed throughout this manual
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