MAINTENANCE
7-12
E. FUEL SYSTEM (See Page 7-42)
Parts Quantity
Interval (hours)
8 50 100 250 500 1000 2000
1. Drain Fuel Tank Sump 1
2. Drain Fuel Filter 1
3. Replace Fuel Main Filter Element 1
4. Replace Fuel Pre-Filter Element 1
5. Clean Fuel Solenoid Pump Strainer 1
6. Check Fuel
Hoses
for leaks, cracks, etc. –
for cracks, bend, etc. –
F. AIR CLEANER (See Page 7-53)
Parts Quantity
Interval (hours)
8 50 100 250 500 1000 2000
1. Air Cleaner Outer
Element
Cleaning 1 (Or when indicator lit)
Replacement 1 After cleaning 6 times or 1 year
2. Air Cleaner Inner
Element
Replacement 1 When outer element is replaced
G. COOLING SYSTEM (See Page 7-55)
Parts Quantity
Interval (hours)
8 50 100 250 500 1000 2000
1. Check Coolant Level 1
2. Check and Adjust Fan Belt Tension 1
★★
3. Change Coolant
ZX120-3 Class
16 L
(4.2 US gal)
Twice a year
✸
1
ZX180-3, 200-3,
270-3 Class
26 L
(6.9 US gal)
Twice a year
✸
1
ZX330-3 Class
41 L
(10.8 US gal)
Twice a year
✸
1
4. Clean Radiator, Oil Cooler
Core and Inter Cooler
Outside 1
✸
2
Inside 1 Once a year
5. Clean Oil Cooler, Radiator and Inter Cooler
Front Screen
1
✸
2
6. Clean Air Conditioner Condenser 1
✸
2
7. Clean Fuel Oil Cooler 1
✸
2
8. Clean Air Conditioner Front Screen (Opt.) 1
✸
2
NOTE:
★★
Maintenance required only during first time check.
✸
1
When genuine Hitachi coolant is used, change every two years or 4000 operating hours, whichever comes first.
✸
2
Shorten the maintenance interval when the machine is operated in dusty areas.
IMPORTANT: Use fresh water or normal tap water as a coolant. Do not use strong acid or alkaline water.
Use the coolant with genuine Hitachi Long-Life Coolant (LLC) mixed by 30 to 50 %.
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