Thermal Arc 185 AC, Руководство по обслуживанию

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8-3
ARCMASTER 185 ACDC 200 ACDC
May 22, 2006
Description Possible Cause Remedy
9 Poor weld finish Inadequate shielding gas.
Increase gas flow or check gas line
for gas flow problems.
10 Arc flutters during TIG
welding
A Tungsten electrode is too large for
the welding current.
A Select the right size electrode. Refer
to Basic TIG Welding guide.
B Absence of oxides in the weld pool. B Refer Basic TIG Welding Guide for
ways to reduce arc flutter.
11 Welding arc can not be
established
A Work clamp is not connected to the
work piece or the work/torch leads
are not connected to the right
welding terminals.
A Connect the work clamp to the work
piece or connect the work/torch
leads to the right welding terminals.
B Torch lead is disconnected. B Connect it to the ‘ ‘ terminal.
C Gas flow incorrectly set, cylinder
empty or the torch valve is off. C Select the right flow rate, change
cylinders or turn torch valve on.
12 Arc start is not smooth A Tungsten electrode is too large for
the welding current.
A Select the right size electrode. Refer
to Basic TIG Welding Guide.
B The wrong electrode is being used
for the welding job
B Select the right electrode type.
Refer to Basic TIG Welding Guide
C Gas flow rate is too high. C Select the correct rate for the
welding job.
Refer to Basic TIG Welding Guide.
D
Incorrect shielding gas is being
used.
D Select the right shielding gas. Refer
to Basic TIG Welding Guide.
E Poor work clamp connection to
work piece.
E Improve connection to work piece.
Table 8-1: TIG Welding Problems