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LN-23P
F-4 F-4
TROUBLESHOOTING AND REPAIR
FEEDING PROBLEMS
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
CAUTION
Major physical or electrical
damage is evident when the
sheet metal covers are removed.
Contact the Lincoln Electric
Service Department at 1-888-
935-3877.
Motor does not run. No Voltage on
the Voltmeter
Motor does not run. OCV is
indicated on the meter.
1. Check for power source output.
2. Remote Sensing lead not
connected to work or broken.
3. Control Cable to Adapter Kit
misconnected or defective.
4. Defective Adapter Kit
1. OCV must be at least 14 VDC.
NOTE: Code 9085 OCV must be
less than 50vdc (45Volts
on DC600).
2. Circuit Breaker tripped.
3. Defective gun trigger or control
leads.
4. Possible defective Control Board
5. Defective Adapter Kit or Control
cable
6. Defective Motor or gearbox.
1. If OK, continue to Step 2.
2. Check continuity of sense lead
circuit. See Wiring Diagram.
If meter reads backwards,
polarity is wrong. Reverse
polarity of power source. The
LN23P must run on Electrode
Negative.
3 Check continuity of the control
cable.
4. See the K350 Adapter test.
1. Adjust power source output
accordingly. If OCV cannot be
adjusted below 50 vdc, Code
9085 machines must be
upgraded with a new Control
Board.
2. Reset breaker. If it trips again,
check the wire feed system for
restrictions. Perform the Gun
Test.
3. Check the trigger circuit
continuity. See the Wiring
Diagram.
4. Perform the Wire Feeder Test
5. See the K350 Adapter test.
6. See Feed Head test.