Transmig 210, 250, 310, 330
Page 30 of 31 DOC No: MIGTRN0001
Date: 14/09/98 Issue No: 2
Power Source Problems (continued)
FAULT CAUSE REMEDY
6 Wire feeds when the torch
trigger switch is depressed
but arc can not be
established.
Poor or no work lead
contact.
Clean work clamp area and
ensure good electrical contact.
7 Mains supply voltage is
ON and contactor in the
Power Source operates but
wire does not feed when the
torch trigger switch is
depressed.
TWECO Torch has been
damaged internally, trigger
wires are making contact
with welding power cable.
Have an Accredited CIGWELD
Service Agent repair torch &
replace PCB.
8 Jerky wire feed AWorn or dirty contact tip AReplace
BWorn feed roll. BReplace
CExcessive back tension
from wire reel hub.
CReduce brake tension on spool
hub
DWorn, kinked or dirty
conduit liner
DClean or replace conduit liner
9 No gas flow AGas hose is cut. AReplace or repair.
BGas passage contains
impurities.
BDisconnect gas hose from the
rear of Power Source or wire-
feeder then raise gas pressure
and blow out impurities.
CGas regulator turned off. CTurn on.
10Gas flow continues after
the torch trigger switch has
been released.
Gas valve has jammed open
due to impurities in the gas
or the gas line.
Have an Accredited CIGWELD
Service Agent repair or replace
gas valve.
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