Miller MIGmatic M-25 Benutzerhandbuch - Seite 13
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5-3. Routine Maintenance
n = Check
* To be done by Factory Authorized Service Agent
Each
Spool
Of Wire
n~ Nozzle and contact tip
Every
3
Months
l Unreadable Labels
5-4. Troubleshooting
Trouble
Wire does not feed; wire is not ener-
gized; wire feeds unevenly.
Weld porosity.
Wire feeding stops or does not feed
properly during welding.
Z = Change
~ = Clean
~ Blow out gun casing
l Damaged Gas Hose
Check contact tip. Check for kinks in gun cable.
Check gun trigger plug connection at welding power source/wire feeder.
Check, and if necessary, replace gun trigger switch (see Section 5-2).
Check contact tip. Check for kinks in gun cable. Blow out liner and gun casing (see Section 5-1).
Remove weld spatter buildup in nozzle.
Make sure inner head tube is tight in cable connector.
Check shielding gas flow/supply.
Straighten gun cable and/or replace damaged parts (see Section 5-1).
Adjust drive roll pressure (see wire feeder manual).
Change to proper drive roll groove (see wire feeder manual).
Readjust hub tension (see wire feeder manual).
Clean or replace liner if dirty or plugged (see Section 5-1).
Replace drive roll or pressure bearing if worn or slipping (see wire feeder manual).
!
Disconnect power
before maintaining.
l = Replace
nl Cords
nl Cracked Parts
Remedy
.
Maintain more often
during severe conditions.
Reference
OM-227 796 Page 9