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F-4

 

 

 

 

 

 

F-4

TROUBLESHOOTING & REPAIR

 

 

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

 

 

 

 

Major physical or electrical dam-

1. Contact your local authorized

1.

Contact

the Lincoln Electric

age is evident when the sheet

 

Lincoln Electric Field Service

 

Service Department,

 

metal cover(s) are removed.

 

Facility for technical assistance.

 

1-800-833-9353 (WELD).

 

 

 

 

 

 

 

 

 

 

Machine is dead – no output – no

1.

Make sure that the input power

1.

Check the input power switch

fan – no status indicator lights.

 

switch is in the “ON” position.

 

(S1) for proper operation. See

 

2. Check the input voltage at the

 

the Wiring Diagram.

 

 

 

 

 

 

 

 

machine.

Input voltage must

2.

Check the leads associated

 

 

match the rating plate and the

 

with the power switch (S1) and

 

 

reconnect panel.

 

the auxiliary transformer (T2) for

 

3.

Check for

blown or missing

 

loose or

faulty connections.

 

 

See the Wiring Diagram.

 

 

fuses in the input lines and the

 

 

 

 

 

 

 

 

 

0.6 amp slow blow reconnect

3.

Perform the Auxiliary Trans-

 

 

fuse.

 

 

former Test.

 

 

 

 

 

 

 

 

Machine is dead - not output - no

1.

Check the input voltage at the

1.

Perform

the

Auxiliary

status indicator lights - fans run.

 

machine.

Input voltage must

 

Transformer Test.

 

 

 

match the rating plate and the

2.

Perform

the Low

Voltage

 

 

reconnect panel.

 

 

 

Circuit Test.

 

 

 

 

 

 

 

 

 

 

 

3.

Perform

the Input

Rectifier

 

 

 

 

 

Test.

 

 

 

 

 

 

4.

The control board may be

 

 

 

 

 

faulty. Replace.

 

 

 

 

 

5.

The display board may be

 

 

 

 

 

faulty. Replace.

 

 

 

 

 

All status indicators remain lit

1. The microprocessor has experi-

1. The control board

may be

immediately after power up.

 

enced a memory fault. Contact

 

faulty. Replace.

 

 

 

your Local

Lincoln Authorized

 

 

 

 

 

 

Field Service Facility.

 

 

 

 

 

 

 

 

 

 

 

 

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 1-800-833-9353.

PRO-CUT 80

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Lincoln Electric SVM146-A service manual Troubleshooting Guide, Output Problems

SVM146-A specifications

Lincoln Electric's SVM146-A is a versatile and powerful multi-process welding machine designed for professionals in various industries. Known for its robustness and reliability, this machine excels in both performance and user-friendly features, making it a popular choice among welders.

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