Lincoln Electric IM859 POWER MIG 350MP - Manual (Page 38)

E-8 TROUBLESHOOTING E-8
POWER MIG ® 350MP
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
While loading wire the wire bird
nests if the wire misses the outlet
guide while shooting the gap in the
torch.
Arc length varies while welding (arc
length is not constant).
POSSIBLE
CAUSE
1. Straighten the first six inches of
the wire before feeding it into the
rear wire drive.
2. Make sure the torch drive rolls
are tightened slightly to help the
wire jump the gap.
3. Slow down wire feed speed while
pushing wire through torch liner.
Recommend setting = 350 ipm.
4. If problem continues after a thru
c are checked then the Stall
Factor Number needs to be
decreased. (See: Stall Factor
Number Adjustment)
1. POWER MIG ® 350MP drive rolls
set too tight. The tension arm
should be set at 1 to 1-1/2.
2. Check to see that the spindle
brake is not set too tight. There
should be an aluminum spacer
behind the spindle brake. Refer
to the push-pull connection kit for
this spacer.
3. Clean or replace contact tip.
4. If problem continues after a and
c are checked then the Stall
Factor Number needs to be
increased. (See Stall Factor
Number Adjustment)
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
PUSH PULL WIRE FEEDING PROBLEMS