Hitachi ZAXIS 135US-6 class Operator's Manual page 472

Impossible to Start the Engine
Problem
Starter does not rotate or is not
powerful.
Starter rotates.
Even though the engine is started, the
engine stalls soon.
Engine runs irregularly.
TROUBLESHOOTING
Cause
Discharged battery
Disconnected, loose, or corroded battery
terminals
Lowered pilot control shut-off lever.
Disconnected, loose, or corroded starter
ground line terminals.
Faulty pilot control shut-off lever electrical
system
Too high engine oil viscosity
Faulty starter and/or electrical system
Battery Disconnect Switch is in the OFF
position
No fuel
Air in the fuel system
Clogged fuel main filter
Clogged fuel pre-filter
Frozen fuel
Engine stop switch is ON
Faulty preheat system
Too low idle speed
Clogged fuel main filter
Clogged fuel pre-filter
Faulty engine control system
Clogged air cleaner
Faulty fuel system
Faulty fuel system
Water or air in the fuel system
Faulty engine control system
Clogged aftertreatment device
11-2
Charge or replace battery.
After repairing the corroded
area, securely tighten the
connectors.
Pull pilot control shut-off lever
up.
After repairing the corroded
area, securely tighten the
connectors.
* Repair
Change engine oil with
appropriate viscosity.
* Repair and replace
Turn the disconnect switch to
the ON position
After checking that no fuel is
leaking, refill fuel.
Bleed air.
Replace element
Replace element
Warm the fuel pump with
hot water or wait until the
atmospheric temperature rises.
* Repair and replace
* Repair and replace
* Repair and replace
Replace element.
Replace element.
* Repair and replace
Clean or replace the element.
* Repair and replace
* Repair and replace
Drain water or bleed air.
* Repair and replace
* Repair and replace
Items with * mark: Consult your authorized dealer.
Solution