E-4

TROUBLESHOOTING

E-4

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

PROBLEMS

 

POSSIBLE AREAS OF

 

RECOMMENDED

(SYMPTOMS)

 

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Major physical or electrical damage

1.

Contact your local authorized

 

 

 

 

is evident when the sheet metal

 

 

 

Lincoln Electric Field Service

 

 

 

 

 

covers are removed.

 

 

 

facility for technical assis-

 

 

 

 

 

 

 

 

 

tance.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input fuses keep blowing, or input

 

 

1.

Make certain that fuses or

 

 

 

 

 

breaker keeps tripping.

 

 

 

breakers are properly sized.

 

 

 

 

 

 

 

 

 

See Installation section of this

 

 

 

 

 

 

 

 

 

manual for recommended

 

 

 

 

 

 

 

 

 

fuse and breaker sizes.

 

 

 

 

 

 

 

 

2.

Welding procedure is drawing

 

 

 

 

 

 

 

 

 

too much output current, or

 

 

 

 

 

 

 

 

 

duty cycle is too high.

 

 

 

 

 

 

 

 

 

Reduce output current, duty

 

 

 

 

 

 

 

 

 

cycle, or both.

 

 

 

 

 

 

 

 

3.

There is internal damage to

 

 

 

 

 

 

 

 

 

the power source. Contact an

 

 

If all recommended possible areas

 

 

 

 

 

 

authorized Lincoln Electric

 

 

of misadjustments have been

 

 

 

 

 

 

Service facility.

 

 

checked and the problem persists,

 

 

 

 

 

 

 

 

 

contact your local Lincoln

 

 

Machine will not power up (no

 

 

1.

Make certain that the Power

 

 

 

 

 

 

 

 

Authorized Field Service Facility.

 

 

lights, no fan, etc.)

 

 

 

Switch (SW1) is in the ON

 

 

 

 

 

 

 

 

 

position.

 

 

 

 

 

 

 

 

2.

Circuit Breaker CB1 (on Case

 

 

 

 

 

 

 

 

 

Front) may have opened.

 

 

 

 

 

 

 

 

 

Reset an over load on the 40V

 

 

 

 

 

 

 

 

 

Wire Feeder supply may

 

 

 

 

 

 

 

 

 

cause this to trip.

 

 

 

 

 

 

 

 

3.

Circuit breaker CB3 (in recon-

 

 

 

 

 

 

 

 

 

nect area) may have opened.

 

 

 

 

 

 

 

 

 

Reset. Also, check input volt-

 

 

 

 

 

 

 

 

 

age selection, below.

 

 

 

 

 

 

 

 

4.

Input voltage selection made

 

 

 

 

 

 

 

 

 

improperly. Power down,

 

 

 

 

 

 

 

 

 

check input voltage reconnect

 

 

 

 

 

 

 

 

 

according to diagram on

 

 

 

 

 

 

 

 

 

reconnect cover.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.

POWER WAVE 405

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Lincoln Electric IM746 manual Troubleshooting Guide, Contact your local Lincoln, Authorized Field Service Facility