33
SERVICE
4.2 TROUBLESHOOTING GUIDE (continued)
3. Insufficient postflow time.
a. Increase postflow time.
4. Loose gas fittings on regulator or gas line. This will draw air into
the weld zone.
a. Check and tighten all gas fittings.
5. Water in torch.
a. Refer to torch parts list for part(s) requiring replacement
and repair torch as necessary.
G. Lack of high frequency; difficulty establishing an arc.
1. Dissipation of high frequency from torch cable or conductive gas
hose.
a. Be sure that torch cable is not near any grounded metal.
Do not use conductive gas hose.
2. Weld cable leakage.
a. Check cables and torch for cracked or deteriorated
insulation or bad connections. Repair or replace neces-
sary parts.
Summary of Contents for 400 GTSW AC/DC
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