Engine Does Not Start - Hitachi ZW 370-6 Operator's Manual

3. Engine does not Start.

Symptom
The starter does not turn.
Although the starter turns,
the engine does not start.
Engine speed does not
increase.
Although the engine cranks,
running speed is low and easy
to stall.
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NOTE: * Consult your nearest authorized dealer.
TROUBLESHOOTING
Cause
Reduced battery voltage
High resistance in the starter circuit
Faulty key switch
Damaged wire harness
Faulty battery relay
Blown slow blow fuse link
The forward/reverse selector lever is in either
the forward or reverse position.
Faulty starter
Battery disconnect switch is OFF.
Use of poor quality fuel, insufficient fuel, lack
of fuel
Faulty glow plug
Air mixed in the fuel supply line
Faulty injection pump or nozzle
Reduced compression pressure
During fan reversing operation, the F, R, or
parking switch was deactivated or the Fan
reverse rotation switch was turned OFF.
DEF tank is empty.
The accelerator pedal function is abnormal.
Deteriorated engine oil
Contaminated injection nozzle
Clogged fuel filter
Clogged feed pump strainer
Air mixed in the fuel supply line
Poor fuel quality
11-2
Solution
Charge the batteries. Replace.
* Clean and/or retighten the battery
terminals and starter terminals
* Replace
* Repair or replace
* Replace
* Replace
Return to neutral.
* Repair or replace
Turn the switch to ON position.
Change fuel. Refill tank with good
quality fuel.
* Replace glow plug
Bleed air
* Repair or replace
* Repair or replace
Rotate the fan in normal direction.
Refer to the fan reverse switch on page
1-108.
Supply DEF.
Replace the accelerator pedal or parts.
Change engine oil
* Replace
Replace
Clean
Bleed air
Replace