ESAB CIGWELD Transmig 255i, Руководство по эксплуатации, Страница: 88 / 96

OPERATING MANUAL
Transmig 255i Transmig 255i
ROUTINE SERVICE REQUIREMENTS AND POWER SOURCE PROBLEMS 8-6 Manual 0-5550
8 Inconsistent wire feed. A Worn or dirty contact tip. A Replace if necessary.
B Worn feed roll. B Replace.
C Excessive brake tension on
wire reel hub.
C Reduce brake tension on spool
hub
D Worn, kinked or dirty con-
duit liner
D Clean or replace conduit liner
9 No gas flow in MIG mode. A Gas hose is damaged. A Replace or repair.
B Gas passage contains
impurities.
B Disconnect gas hose from
the rear of power source or
wirefeeder and blow out impuri-
ties.
C Gas regulator turned off. C Turn on regulator.
D Empty gas cylinder. D Replace gas cylinder.
10 Gas flow continues after
the torch trigger switch has
been released (MIG mode).
Gas valve has jammed open
due to impurities in the gas
or the gas line. Have an accredited CIGWELD
service provider repair or re-
place gas valve.
11 Power indicator will not
illuminate and welding arc
cannot be established.
The mains supply voltage
has exceeded voltage limits
of the power source. Ensure that the mains supply
voltage is within 240VAC ± 15%.
12 TIG electrode melts when
arc is struck.
TIG torch is connected to
the (+) VE terminal. Connect the TIG torch to the (-)
VE terminal.
13 Arc flutters during TIG
welding.
Tungsten electrode is too
large for the welding cur-
rent. Select the correct size of tung-
sten electrode. Refer to Table
6-1.
Table 8-4