Lincoln Electric CLASSIC IM514-A - Manual (Page 24)

E-6 TROUBLESHOOTING E-6
CLASSIC I
LINCOLN
ELECTRIC ELECTRIC
®
ELECTRONIC IDLER TROUBLESHOOTING GUIDE
Engine Will Not Return to Idle
in Approximately 15 Seconds
Set Idler Control Switch
to the Auto Position
Check to See Whether Oil Pressure
Light is On and Alternator is Charging
Light Off Light On
If Oil Light is O.K., Replace Oil Check Continuity of Idler
Pressure Switch Control Switch
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
Check Connections and Continuity of
Current Transformer.
Replace P.C. Board
Engine Picks Up Speed
When Arc is Struck
1. Replace Reed Switch
in Weld Circuit.
Engine Does Not Pick
Up Speed
Replace P.C. Board
Engine Will Not Pick Up Speed When:
Continuity Good
1. Reed switch in weld circuit
may be stuck closed.
2. Check continuity of idler
solenoid coil (25 ohms).
3. Replace P.C. Board.
Open
Replace Switch