Lincoln Electric IM915 POWER FEED 10M SINGLE WIRE FEEDER - Manual (Page 65)

E-7 TROUBLESHOOTING E-7
POWER FEED ® 10M SINGLE WIRE FEEDER
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)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Wire feed speed consistently oper-
ates at the wrong value.
Variable or "hunting" arc.
Poor arc starts with sticking or
"blast-offs", weld porosity, narrow
and ropy looking bead.
1. The wire feeder gear setting is
not properly set. Verify the
POWER FEED
® 10M Single Wire
Feeder software setting matches
the gear mounted. See the
Instruction Manual for setting the
gear speed.
1. Wrong size, worn and/or melted
contact tip. Replace the contact
tip.
2. Worn work cable or poor work
connection. Verify all work and
electrode connections are tight
and that the cables are in good
condition. Clean/replace as nec-
essary.
3. Wrong polarity. Adjust polarity to
the recommended procedure.
Verify DIP switch #7 setting
matches the electrode polarity.
4. The gas nozzle is extended
beyond the contact tip or the wire
stickout is too long. Adjust the
gas nozzle and shorten the con-
tact tip to work distance 1/2” to
3/8” inches.
5. Poor gas shielding on processes
requiring gas. Check gas flow
and mixture. Remove or block
sources of drafts.
1. Improper procedures or tech-
niques. See "Gas Metal Arc
Welding Guide" (GS-100).
If all recommended possible areas of
misadjustment have been checked
and the problem persists, Contact
your local Lincoln Authorized
Field Service Facility.