Lincoln Electric IM725 Troubleshooting Guide, Problems Possible Areas Symptoms Misadjustments

Models: IM725

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E-2

TROUBLESHOOTING

E-2

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

PROBLEMS

POSSIBLE AREAS OF

(SYMPTOMS)

MISADJUSTMENT(S)

 

OUTPUT PROBLEMS

Major physical or electrical damage

Contact your LOCAL LINCOLN

is evident.

AUTHORIZED FIELD SERVICE

 

FACILITY.

 

 

No wire feed, weld output or gas

1. Make sure correct voltage is

flow when gun trigger is pulled. Fan

applied to the machine (115

does NOT operate.

vac).

 

2. Make certain that power switch

 

is in the ON position.

No weld output or wire feed when

Contact your LOCAL LINCOLN

gun trigger is pulled. Fan runs and

AUTHORIZED FIELD SERVICE

gas flows normally.

FACILITY.

 

 

 

No weld output when gun trigger is

1.

Arc voltage may be set too low.

pulled. Fan runs, gas flows and

 

 

wire feeds normally.

2.

Gun tip may be worn Replace.

 

3.

Check for correct input voltage

 

 

to machine.

 

4.

Gun or work cable may be

 

 

faulty.

 

 

 

No Wire feed, weld output or gas

1.

Check the circuit breaker locat-

flow when the gun trigger is pulled -

 

ed in the machines wire drive

Fan operates normally.

 

compartment. Reset if tripped.

 

2.

The thermostat may be tripped

 

 

due to overheating. Let machine

 

 

cool. Weld within the duty cycle

 

 

or remove any air obstruction to

 

 

machine.

 

3.

Wire feed motor may be over-

 

 

loaded. Correct feeding prob-

 

 

lem.

RECOMMENDED COURSE OF ACTION

Contact your local Lincoln Authorized Field Service Facility.

4. Gun trigger may be faulty.

CAUTION

If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your

LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

SP-135 PLUS

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Lincoln Electric IM725 manual Troubleshooting Guide, Problems Possible Areas Symptoms Misadjustments