Hitachi 120-3 class - Page 203

MAINTENANCE
7-11
C. TRANSMISSION (See Page 7-23)
Parts Quantity
Interval (hours)
8 50 100 250 500 1000 2000
1. Pump
Transmission
Oil Level Check 1
Change
ZX180-3, 200-3, 270-3
Class
1.0 L
(1.1 US qt)
ZX330-3 Class
1.4 L
(1.5 US qt)
2. Swing
Reduction
Gear
Oil Level Check 1
Change
ZX120-3 Class
3.2 L
(3.4 US qt)
ZX180-3, 200-3 Class
6.2 L
(1.6 US gal)
ZX270-3 Class (Except
280LC-3, 280LCN-3)
9.1 L
(2.4 US gal)
ZX280LC-3, 280LCN-3
11.7 L
(3.1 US gal)
ZX330-3 Class
17.0 L
(4.5 US gal)
3. Travel
Reduction
Gear
Oil Level Check 2
Change
ZX120-3 Class
4.0 L
×
2
(4.2 US qt)
ZX180-3, 200-3 Class
6.8 L
×
2
(1.8 US gal)
ZX270-3 Class (Except
280LC-3, 280LCN-3)
7.8 L
×
2
(2.1 US gal)
ZX280LC-3, 280LCN-3,
330-3 Class
9.2 L
×
2
(2.4 US gal)
D. HYDRAULIC SYSTEM (See Page 7-27)
Parts Quantity
Interval (hours)
8 50 100 250 300 500 1000 1500 2500 5000
1. Check Hydraulic Oil Level 1
2. Change Hydraulic
Oil
ZX120-3 Class
130 L
(34.3 US gal)
✸ ✸ ✸ ✸
ZX180-3 Class
190 L
(50.2 US gal)
✸ ✸ ✸ ✸
ZX210-3,
210LC-3
200 L
(52.8 US gal)
✸ ✸ ✸ ✸
ZX210LCN-3,
240N-3
170 L
(44.9 US gal)
✸ ✸ ✸ ✸
ZX270-3 Class
243 L
(64.2 US gal)
✸ ✸ ✸ ✸
ZX330-3 Class
298 L
(78.7 US gal)
3. Suction Filter Cleaning 1 When changing hydraulic oil
4. Replace Hydraulic Tank Oil Filter 1
✸✸ ✸ ✸
5. Replace Pilot Oil Filter 1
6. Replace Air Breather Element 1
7. Check Hoses and
Lines
for leaks –
for cracks, bend, etc. –
NOTE:
✸
Hydraulic oil changing interval differs according to the kind of hydraulic oil used.
See recommended oil chart.
✸✸
While demolition and logging work.