Lincoln Electric Ranger 305D Service Manual page 103

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OIL PRESSURE SWITCH
OIL FILTER
16. If battery voltage is present at leads #210H
and #224B, but not present at leads #200N
The Control PC board is probably defective.
Replace.
17. If battery voltage is present at lead #210H,
but not present at leads #224B or #200N
check the engine protection wiring and CR1
engine protection relay, per the wiring dia-
gram. Also check that the oil pressure
switch lead, (lead #229) has not come into
contact with chassis ground. The engine
protection light should be off during this tes t.
18. If battery voltage is not present at lead
#210H, check wiring per wiring diagram, and
check the run/stop switch. Also check the
ground PC board chassis ground wire, lead
#5K and the stud where it connects to the
chassis.
TROUBLESHOOTING & REPAIR
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FLASHING VOLTAGE TEST (continued)
FIGURE F.11 – EXCITER LEADS T1, T2, T3
ENGINE ALTERNATOR
RANGER 305D
#229
19. Set the RUN/STOP switch to the "STOP"
position.
20. Re-connect lead #229 to the oil pressure
switch.
21. If testing is completed, perform the Case
Cover Replacement procedure.
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