Lincoln Electric SA-250 manual Defective -- Will Not Close, Auxiliary Power Load is Turned on

E-6	TROUBLESHOOTING	E-6
	ELECTRONIC IDLER TROUBLESHOOTING GUIDE

With Idler Control Switch in the AUTO Position,

Engine Will Not Pick Up Speed When:

The Arc is Struck

Reed Switch in Weld Circuit

Defective -- Will Not Close

To Check: Short the Red Lead on P.C. Board to Welder Frame.

The Auxiliary Power Load is Turned ON

Power Load Too Small

Try Load Above 150 Watts

Engine Does Not Pick Up Speed

Engine Picks Up Speed

1.Check for Break in Red Lead and Repair

2.Replace Reed Switch in Weld Circuit.

Engine Does Not Pick Up

Speed

1.Check Continuity of Idler Solenoid Coil (8.5-9.0 ohms) and Replace as Required.

2.Check for Jamming of the Idler Solenoid Mechanism.

3.Check Idler Circuit Wiring and Repair as Required.

4.Replace Idler P.C. Board.

1.Check Continuity of Idler Solenoid Coil (8.5-9.0 ohms) and Replace as Required.

2.Check for Jamming of the Idler Solenoid Mechanism.

3.Check for Continuity of Current Transformer (Toroid). Replace as Required.

4.Check Idler Circuit Wiring and Repair as Required.

5.Replace Idler P.C. Board.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

SA-250