Troubleshooting - Hitachi ZW 120-6 Operator's Manual

Troubleshooting

If any abnormality is found on the machine, immediately take action to solve it. Find out the cause of the abnormality to
prevent the recurrence of malfunction.
If the cause of malfunction is unknown or for inquiry on solution item with mark "*" on the list below, consult your nearest
authorized dealer.
Do NOT attempt to adjust or disassemble hydraulics, electrical and electronic parts.
Engine
Consult your nearest authorized dealer for the engine troubleshooting.
Engine Auxiliaries
Symptom
Batteries will not charge.
Batteries discharge quickly after being
charged.
Coolant temperature is too high.
TROUBLESHOOTING
Cause
Broken battery separator
Faulty regulator
Faulty ground line
Faulty alternator
Shorted cable
Shorted battery separator
Increased sediment in battery
Low coolant level
Abnormal fan rotation
Damaged rubber hose
Faulty thermostat
Faulty coolant temperature gauge
Faulty radiator cap seal
Radiator fin plugged
11-1
Solution
Replace
* Adjust, Replace
* Repair
* Repair, Replace
* Repair, Replace
* Repair, Replace
* Replace
Refill
* Repair, Adjust
* Replace
* Replace
* Replace
Replace
Clean
* Consult your nearest authorized dealer.