Lincoln Electric CLASSIC 300 D - Manual (Page 25)

With Idler Control Switch in the AUTO Position, Engine Will Not Pick Up Speed When:
The Arc is Struck Both Auxiliary Load
1. Check Idler circuit wiring. Possible
Problems are wires from Current Sensing
Board reversed at idler switch or wires
connected incorrectly at Current Sensor
Molex plug.
2. Check voltage across idler control
switch.
12V 0V
Replace Current Contact Kubota
Sensing PCB Engine Repair
Facility.
E-4 TROUBLESHOOTING
CLASSIC® 300D KUBOTA
E-4
ELECTRONIC IDLER CONTROL TROUBLESHOOTING GUIDE
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.
CAUTION
Check for loose or disconnected
wire running between weld
selector switch and output stud.
1. Load too small. Try load
above 100 Watts.
2. Check for loose or discon-
nected wire running from
black lead out of exciter to
CB2 circuit breaker.