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E-2
PROBLEMS
(SYMPTOMS)
A.
No welder or output power.
B.
Engine will not idle down to
low speed.
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.
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
1.
Open in miscellaneous leads.
2.
Open lead in flashing or field
circuit.
3.
Faulty rotor.
4.
Faulty Potentiometer (R1).
5.
Faulty stator Field winding.
6.
Faulty Field rectifier (D2).
7.
Faulty P.C. Board.
1.
Idler switch on High Idle.
2.
External load on welder or
auxiliary power.
3.
Faulty idler solenoid.
4.
Faulty P.C. Board.
RANGER 8+ DIESEL
1.
2.
3.
4.
5.
6.
7.
1.
2.
3.
4.
CAUTION
RECOMMENDED
COURSE OF ACTION
Refer to wiring diagram &
check related leads.
Refer to wiring diagram and
check all related leads (200,
224, 200A, 200B, 201, 201A).
Lift brushes and check rotor
resistance between slip rings.
It should be approximately
4 ohms.
Replace with known good one.
Disconnect lead #9 at D2 and
check for continuity between
leads #9 and #7.
Replace with known good one.
Replace with known good one.
Set switch on Automatic Idler.
Remove all external loads and
short circuits.
Replace with known good one.
Replace P.C. Board with
known good one.
E-2
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