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Doosan GC25P-3 User Manual

Doosan GC25P-3
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LP Engine G430(3.0L) Starting System
7. Are all the voltages within specifications ?
I
If the voltage drops are correct, go to Step 8, to
check the engine.
I
If the voltage drops are too high, repair and/or
replace the faulty electrical component.
8. Rotate the crankshaft by hand to make sure it is not
locked up. Check oil viscosity and any external
loads that would affect engine rotation.
9. Is the engine locked up or hard to turn ?
I
If it is, repair the engine as required.
I
If the engine is not hard to turn, go to Step 10.
10. Does the starting motor crank?
I
If it does crank, remove the starting motor for repair
and/or replacement.
I
If it does not crank, check for blocked engagement
of the pinion and flywheel ring gear.
NOTE: Blocked engagement and open solenoid
contacts will give the same electrical symptoms.
Start Relay Tests
D167422 Relay
1. Put the multimeter on the 200 ohm scale.
2. Put the multimeter lead to the 85 and 86 terminals.
3. The indication on the meter must be 82 L 5 ohms.
If the indication is not correct, the start relay must
be replaced.
4. Put the multimeter leads to the 30 and 87 terminals.
5. The indication must be "OL"(Over Load). If the
indication is not correct, the start relay must be
replaced.
6. Connect WH wire to 86 and BK wire to 85 terminal
with the ignition switch to start position. Put the
meter lead to 30 and 87 terminal.
7. The indication must be Zero ohm. If the indication is
not correct the start relay must be replaced.

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Doosan GC25P-3 Specifications

General IconGeneral
BrandDoosan
ModelGC25P-3
CategoryEngine
LanguageEnglish

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