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SA-400I
®
ELECTRONIC IDLER TROUBLESHOOTING GUIDE
Engine Will Not Return to Low Idle in Approximately 15 Seconds
Measure DC Voltage on
Idler Solenoid Coil
0 VDC
Check Continuity of
Reed Switch in Weld Circuit
Open
1. Check Wiring in
Idler Solenoid
Circuit
2. Replace Idler
P.C. Board
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.
With Idler Control Switch in the Auto Position,
After Welding and Auxiliary Loads are Removed
Set Idler Control Switch
to the Auto Position
Check for Continuity through Idler
Control Switch
Open
12 VDC
Check for Jamming
of the Idler Solenoid
Mechanism
Closed
Replace Reed
Switch
CAUTION
E-4
TROUBLE SHOOTING
Closed
Replace Idler
Control Switch
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