Fabricator 141i – Tweco Fabricator 141i Operating Manual User Manual

Page 88

Advertising
background image

Fabricator 141i

TROUBLE SHOOTING AND SERVICE

5-2

Manual 0-5145

FAULT

CAUSE

REMEDY

6 Inconsistent wire feed.

A Fouled contact tip.

A Replace Velocity contact tip if

necessary.

B Drive roll tension not tight enough. B Tighten drive roll tension.
C Worn feed roll.

C Replace.

D Excessive brake tension on wire

reel hub.

D Reduce brake tension on spool hub

E Worn, kinked or dirty conduit liner. E Clean or replace conduit liner

7 No gas flow in MIG mode.

A Gas hose is damaged.

A Replace or repair.

B Gas passage contains debris.

B Disconnect gas hose from the rear

of Power Source and blow out

debris.

C Shielding gas cylinder valve shut

off.

C Turn on the cylinder.

D Flowmeter/ Regulator turned off.

D Turn on flowmeter/ regulator.

E Empty gas cylinder.

E Replace gas cylinder.

8 Gas flow continues after

the torch trigger switch has

been released (MIG mode).

Gas valve has jammed open due to

debris in the gas or the gas line.

Have an accredited Tweco service

provider repair or replace gas valve.

9 Power indicator will not

illuminate and welding arc

cannot be established.

The Electricity supply is inad-

equate.

Ensure that the Electricity Supply

voltage is within 95-140 VAC.

10 TIG electrode melts when

arc is struck.

TIG Torch is connected to the (+)

polarity terminal.

Connect the TIG Torch to the (-)

polarity terminal.

11 Arc flutters during TIG

welding.

Tungsten electrode is too large for

the welding current.

Select the correct size of tungsten

electrode. Refer to Table 4-7.

Table 5-1

Advertising