Welding Troubleshooting Table; Wire Drive/Gun Troubleshooting Table - Hobart H200L4-15 Owner's Manual

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A complete Parts List is available on-line at www.HobartWelders.com

7-9. Welding Troubleshooting Table

Welding Trouble
No weld output; wire does not feed.
No weld output; wire feeds.
Low weld output.
Low, high, or erratic wire speed.

7-10. Wire Drive/Gun Troubleshooting Table

Wire Drive/Gun Trouble
Electrode wire feeding stops during
welding or wire feeding intermittently.
OM-235 281 Page 26
Secure power cord plug in receptacle (see Section 5-12).
Place Power switch in the ON position.
Place MIG/Spool Gun switch in the proper position.
Check and replace Power switch if necessary.
Check supplementary protectors CB1 and/or CB2, and reset if necessary (see Section 7-2).
Replace building line fuse or reset circuit breaker if open (see Section 5-12).
Secure gun trigger plug in receptacle or repair leads, or replace trigger switch (see Sections 5-2 and/or
Parts List).
Thermostat open (overheating). Allow fan to run; the thermostat will close when the unit has cooled (see
Section 4-3).
Connect work clamp to get good metal to metal contact.
Replace contact tip (see Section 7-6).
Connect unit to proper input voltage or check for low line voltage (see Section 5-12).
Readjust front panel settings (see Section 6-1).
Change to correct size drive roll (see Section 7-3).
Readjust drive roll pressure (see Section 5-13).
Replace inlet guide, contact tip, and/or liner if necessary (see Sections 7-3, 7-6 and/or 7-8).
Straighten gun cable and/or replace damaged parts (see Section 7-8).
Adjust drive roll pressure (see Section 5-13).
Readjust hub tension (see Section 5-6).
Check supplementary protectors CB1 and/or CB2, and reset if necessary (see Section 7-2).
Replace contact tip if blocked (see Section 7-6).
Clean or replace wire inlet guide or liner if dirty or plugged (see Sections 7-3 and/or 7-8).
Replace drive roll if worn or slipping (see Section 7-3).
Secure gun trigger plug in receptacle or repair leads, or replace trigger switch (see Section 5-2 and/or
see Parts List).
Check and clear any restrictions at drive assembly and liner (see Section 7-8).
Have nearest Factory Authorized Service Agent check drive motor.
Remedy
Remedy