E-2
TROUBLESHOOTING
E-2
RANGER 8+ DIESEL
Observe all Safety Guidelines detailed throughout this manual
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
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
A.
No welder or output power.
B.
Engine will not idle down to
low speed.
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.
1.
Refer to wiring diagram &
check related leads.
2.
Refer to wiring diagram and
check all related leads (200,
224, 200A, 200B, 201, 201A).
3.
Lift brushes and check rotor
resistance between slip rings.
It should be approximately
4 ohms.
4.
Replace with known good one.
5.
Disconnect lead #9 at D2 and
check for continuity between
leads #9 and #7.
6.
Replace with known good one.
7.
Replace with known good one.
1.
Set switch on Automatic Idler.
2.
Remove all external loads and
short circuits.
3.
Replace with known good one.
4.
Replace P.C. Board with
known good one.
Summary of Contents for RANGER 8 + DIESEL
Page 37: ...NOTES RANGER 8 ...
