Lincoln Electric IM698 PIPELINER 200G - Manual (Page 25)

E-7 TROUBLESHOOTING E-7
PIPELINER 200G
ELECTRONIC IDLER CONTROL TROUBLESHOOTING GUIDE
Engine Will Not Return to Low
Idle in Approximately 10 Seconds
After Welding and Auxiliary Loads are Removed
Set Idler Control Switch
to the Auto Position
Check for Continuity through Idler
Control Switch
Open Closed
Remove Molex connector Replace Idler
from current sensing board. Control Switch.
Operation Same Machine Idlers
Check wiring between TBI controller and current sensing board. 1. Check for current in wires looping through
current sensor.
2. Replace current sensor.
Have TBI controller inspected at authorized service shop. Not O.K.
Correct wiring
With Idler Control Switch in the AUTO Position,Engine Will Not Pick Up Speed When:
Auxiliary Load
1. Load too small. Try load
above 150 Watts.
2. Check for loose or
disconnected wire running
from black lead out of exciter
to CB2 circuit breaker.
The Arc is Struck
Check for loose or disconnected
wire running between weld
selector switch and output stud.
Both
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. Replace current Sensing 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.
CAUTION