Tweco 2460 Heavy Duty CC CV Control Wire Feeder - Manual (Page 28)

Troubleshooting
The following chart contains information which can be used to diagnose and correct unsatisfactory operation
or failure of various components of the unit. Each symptom of trouble is followed by a list of probable causes
and procedures to correct them.
Wire does not feed, open-circuit voltage is normal
Switch on Feeder not on or bad
Check and correct.
Fuse open on Feeder
Check and replace.
Work lead not connected
Check and connect.
Cables from Power Sources not properly connected
Check and connect.
Gun switch defective
Check for proper operation.
Feed rolls not properly tightened
Correct situation.
Bad PC board on feeder
Replace.
5 A internal fuse blown
Replace fuse.
Erratic weld output
Ground clamp loose at WORK connection
Check ground clamp for secure attachment.
Gun liner dirty
Check gun liner and replace if necessary.
Voltage/current and feeder settings are not correct
Readjust as necessary.
Improper wire for gas less welding
Change to proper wire.
Wire feed motor operates, but wire does not feed
Too little pressure on wire feed roll
Increase pressure adjustment.
Incorrect wire groove
Check wire size stamped on outside of feed roll. Match to wire size.
TIP-218
CONTROL BOX ASSEMBLY NO. 376783A & 376783B
Page 4 May 29, 1996 Revised