Doosan GV158TIC, Operation & Maintenance Manual

Page: 118 / 162

Disassembly and Reassembly of Major Components - 112 -
3.7. Diagnosis and Remedies of Trouble Causes
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Prior to asking for repair, please check the following items
Generated Problem Inspection Items Inspecting Position
Starting failure, starting motor
not rotate
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Confirm connector that connects electric
wiring to gauge panel if it is correctly
connected
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Confirm connection of electric wiring and
batteries if it is connected correctly.
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Confirm connection of electric wiring and
starting motor if it is connected correctly.
Backward of gauge panel
Battery terminal
Starting motor terminal
Starting motor rotates but
starting fail
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Make sure that fuel quantity is sufficient. Fuel tank
Engine revolution meter not
operates
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Confirm connector that connects wiring and
gauge panel if it is correctly connected.
●
Check if terminal resistance of tacho
sensor is pulled out
Backward of gauge panel
Tacho sensor terminal
Cooling water temp, gauge fails
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Confirm connector that connects wiring and
gauge panel if it is correctly connected.
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Confirm connector of cooling temp sensor
if it is correctly connected.
Backward of gauge panel
Cooling water pipe
Engine oil pressure gauge not
operate
●
Confirm connector that is connected to
engine oil pressure sensing sensor if it is
pulled out.
Side of oil filter
Charging abnormality warning
lamp lights continuously
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Confirm that the electric wiring terminal that
is connected to generator's L terminal if it is
pulled out and touched to engine body.
Alternator terminal
Though engine stopped, engine
revolution meter works continu-
ously
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Characteristics of engine revolution meter
is so designed that it may slowly drop
down, and so it's not trouble. Starting key
Cooling water temp, gauge and
engine revolution meter not
operate simultaneously.
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Confirm if the present position of start
switch is at ACC.
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For power source of gauge panel goes
from starting key, if the start key is at OFF,
though engine is running, gauge panel
does not move.
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Confirm connector that connects wiring and
gauge panel if it is correctly connected.
●
Confirm if connector that connected to
solenoid and wiring is pulled out.
Backward of gauge panel
Though engine switch is
pushed, it does not stall.
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Confirm if the cable that connects electric
governor and injection pump is cut.
Electric governor