Hitachi ZAXIS 135US-5B Operator's Manual page 406

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 OFF position
No fuel
Air in the fuel system
Clogged fuel filter
Frozen fuel
Engine stop switch is ON
Faulty preheat system
Too low idle speed
Clogged fuel filter
Clogged pre-fuel filter
Faulty engine control system
Clogged air cleaner
Faulty injection pump
Faulty fuel system
Water or air in the fuel system
Faulty engine control system
Clogged muffler filter
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 battery disconnect switch
to the ON position
After checking that no fuel is
leaking, refill fuel
Bleed air
After draining water, replace
the element
Warm the fuel pump with
hot water or wait until the
atmospheric temperature rises
* Repair and replace
* Repair and replace
* Repair and replace
After draining water, replace
the element
Clean or replace the 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 nearest Hitachi dealer.
Solution