5-9. Welding Troubleshooting Table

 

 

 

 

 

 

 

 

 

 

 

Welding Trouble

 

 

Remedy

 

 

No weld output; wire does not feed.

Secure power cord plug in receptacle (see Section 3-14).

 

 

 

 

 

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 5-2).

 

 

 

 

 

Replace building line fuse or reset circuit breaker if open (see Section 3-14).

 

 

 

 

 

Secure gun trigger plug in receptacle or repair leads, or replace trigger switch (see Sections 3-4and/or

 

 

Parts List).

 

 

 

 

 

Thermostat open (overheating). Allow fan to run; the thermostat will close when the unit has cooled (see

 

 

Section 3-2).

 

 

No weld output; wire feeds.

Connect work clamp to get good metal to metal contact.

 

 

 

 

 

Replace contact tip (see Section 5-6).

 

 

Low weld output.

Connect unit to proper input voltage or check for low line voltage (see Section 3-14).

 

 

Low, high, or erratic wire speed.

Readjust front panel settings (see Section 4-1).

 

 

 

 

 

Change to correct size drive roll (see Section 5-3).

 

 

 

 

 

Readjust drive roll pressure (see Section 3-15).

 

 

 

 

 

Replace inlet guide, contact tip, and/or liner if necessary (see Sections 5-3, 5-6and/or 5-8).

 

 

 

 

 

5-10. Wire Drive/Gun Troubleshooting Table

Wire Drive/Gun Trouble

Remedy

 

 

Electrode wire feeding stops during

Straighten gun cable and/or replace damaged parts (see Section 5-8).

welding or wire feeding intermittently.

 

 

 

 

Adjust drive roll pressure (see Section 3-15).

 

 

 

Readjust hub tension (see Section 3-8).

 

 

 

Check supplementary protectors CB1 and/or CB2, and reset if necessary (see Section 5-2).

 

 

 

Replace contact tip if blocked (see Section 5-6).

 

 

 

Clean or replace wire inlet guide or liner if dirty or plugged (see Sections 5-3and/or 5-8).

 

 

 

Replace drive roll if worn or slipping (see Section 5-3).

 

 

 

Secure gun trigger plug in receptacle or repair leads, or replace trigger switch (see Section 3-4and/or

 

see Parts List).

 

 

 

Check and clear any restrictions at drive assembly and liner (see Section 5-8).

 

 

 

Have nearest Factory Authorized Service Agent check drive motor.

 

 

OM-235 281 Page 30

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Hobart Welding Products 230 Welding Troubleshooting Table, Wire Drive/Gun Troubleshooting Table, Welding Trouble Remedy