Miller Millermatic Spoolmate 185 Spool Gun Owner's Manual page 38

Trouble
Low, high, or erratic wire speed.
No wire feed.
4-12. Spool Gun Troubleshooting
Trouble
Gun tube assembly loose.
No weld output; gun/feeder does not
work.
Erratic weld output.
Pressing gun/feeder trigger does not en-
ergize welding power source; welding
wire is not energized; shielding gas does
not flow.
Wire feeds, shielding gas flows, but Secure control cable leads in welding power source (see Section 2-10).
welding wire is not energized.
Wire feeds erratically.
OM-1322 Page 34
Remedy
Readjust front panel settings (see Section 3-1).
Change to correct size drive rolls (see Section 4-5).
Readjust drive roll pressure (see Section 2-18).
Replace inlet guide, contact tip, and/or liner if necessary (see Sections 4-4 and 4-7).
Check position of input jumper links (see Section 2-15).
Have Factory Authorized Service Agent check main control board.
Reset circuit breaker CB1 (see Section 4-2).
Turn Wire Speed control to higher setting (see Section 3-1).
Clear obstruction in gun contact tip or liner (see Sections 4-4 and 4-7).
Readjust drive roll pressure (see Section 2-18).
Change to correct size drive rolls (see Section 4-5).
Rethread welding wire (see Section 2-18).
Check gun trigger and leads. Repair or replace gun if necessary.
Have Factory Authorized Service Agent check main control board.
Tighten nut at base of gun tube assembly.
Place Power switch on welding power source in the On position (see welding power source Owner's
Manual).
Tighten and clean all connections.
Secure plug from gun/feeder trigger cord into 4-socket receptacle on welding power source
(see Section 2-10).
See Troubleshooting section in welding power source Owner's Manual.
Check and correct drive roll pressure (see Section 2-14).
Clean or replace drive roll; clean or replace liner (see Sections 4-9 and 4-10).
Remedy