E-5
TROUBLE SHOOTING
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.
SAE-300
®
MP
CAUTION
ELECTRONIC IDLER TROUBLESHOOTING GUIDE
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 Perkins
Sensing PCB
Engine Repair
Facility.
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.
Содержание SAE-300 MP K4089-2
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