Troubleshooting; Impossible To Start The Engine - Hitachi 120-3 class Operator's Manual

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

IMPOSSIBLE TO START THE ENGINE

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
No fuel
Air in the fuel system
Clogged fuel filter
Frozen fuel
Faulty injection pump
Faulty engine control system
The emergency engine stop SW 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
11-1
Solution
Charge or replace battery.
After repairing the corroded
area, securely tighten the con-
nectors.
Pull pilot control shut-off lever
up.
After repairing the corroded
area, securely tighten the con-
nectors.
See your authorized dealer.
Change engine oil with ap-
propriate viscosity.
See your authorized dealer.
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.
See your authorized dealer.
See your authorized dealer.
See your authorized dealer.
See your authorized dealer.
See your authorized dealer.
After draining water, replace
the element.
Clean or replace the element.
See your authorized dealer.
Clean or replace the element.
See your authorized dealer.
See your authorized dealer.
Drain water or bleed air.
See your authorized dealer.