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F-4

TROUBLESHOOTING & REPAIR

F-4

 

Observe Safety Guidelines

 

 

 

 

 

 

TROUBLESHOOTING GUIDE

 

 

detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

RECOMMENDED

 

 

 

(SYMPTOMS)

 

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

The machine is dead. No weld out-

1.

Check the input voltage. The

1. Check the input power switch,

 

put – no 115 VAC at the receptacle.

 

input voltage must match the rat-

reconnect panel and associated

 

 

 

 

ing plate and the voltage con-

wires for loose or faulty connec-

 

 

 

 

nection.

Refer

to

Reconnect

tions.

 

 

 

 

 

 

Procedure in

the

Installation

2. The input power switch may be

 

 

 

2.

section of this manual.

faulty.

 

 

 

 

 

Make sure that the input power

3. Perform the T1 Transformer

 

 

 

3.

switch is in the “ON” position.

Test.

 

 

 

 

 

Check for blown or missing

 

 

 

 

 

 

4.

fuses in the input lines.

 

 

 

 

 

 

Check

circuit

breaker CB1.

 

 

 

 

 

 

 

Reset if necessary.

 

 

 

 

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CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.

PRECISION TIG 275

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Lincoln Electric SVM162-B service manual Troubleshooting Guide, Reconnect, Procedure, Test