Hitachi Zaxis 850LC-3 Operator's Manual page 219

D. HYDRAULIC SYSTEM (See Page 7-29)
Parts
1. Check Hydraulic Oil Level
2. Drain Hydraulic Oil Tank Sump
3. Change Hydraulic Oil
4. Suction Filter Cleaning
5. Replace Hydraulic Oil Tank Filter
6. Replace Pump Drain Filter
7. Replace Pilot Oil Filter
8. Replace Air Breather Filter
for leaks
9. Check Hoses
and Lines
for cracks, bend, etc.
NOTE: ✸ Hydraulic oil changing interval differs according to the kind of hydraulic oil used.
See recommended oil chart.
E. FUEL SYSTEM (See Page 7-46)
Parts
1. Drain Fuel Tank Sump
2. Check Water Separator
3. Replace Fuel Main Filter
4. Replace Fuel Pre-Filter
5. Clean Feed Pump Strainer
for leaks
6. Check Fuel
Hoses
for cracks, bend, etc.
F. AIR CLEANER (See Page 7-56)
Parts
1. Air Cleaner Outer Element
2. Air Cleaner Inner Element
G. COOLING SYSTEM (See Page 7-57)
Parts
1. Check Coolant Level
2. Change Coolant
3. Clean Radiator, Oil Cooler,
Inter Cooler, Fuel Cooler Core
4. Clean Oil Cooler Front Screen
NOTE: ★ Shorten maintenance interval when the machine is operated in dusty areas.
When genuine coolant is used, replace every two years or 4000 operating hours, whichever comes first.
✸
MAINTENANCE
Quantity
1
1
790 L (209 US gal)
1
1
1
1
1
—
—
Quantity
1
3
2
1
1
—
—
Quantity
Cleaning 1
Replacement 1
Replacement 1
Quantity
1
116 L (31 US gal)
Outside 1
Inside 1
1
Interval (hours)
10 50 100
When changing hydraulic oil
10 50
10 50
After cleaning 6 times or 1 year
When outer element is replaced
10 50
7-7
250 500 1000 1500 2500 4000
✸
Tank capacity 1120 liter (296 US gal)
Interval (hours)
100 250 500 1000
Interval (hours)
100 250 500 1000
(Or when indicator lit)
Interval (hours)
100 250 500 1000
Twice a year ✸
Once a year
★
✸ ✸
2000
2000
2000