Hitachi ZAXIS 135US-5B Operator's Manual page 285

C. Transmission
Pump
1. Change ZX225US-5B, 225USLC-5B
Transmission
Air Breather Cleaning
Swing Reduction
2.
Gear
Change
Travel Reduction
3.
Gear
Change
D. Hydraulic System
Parts
1. Check Hydraulic Oil Level
2. Change Hydraulic Oil
3. Suction Filter Cleaning
4. Replacement of full-
flow filter
5. Replace Pilot Oil Filter
6. Replace Air Breather Element
7. Check Hoses and Lines
 : Changing interval differs according to the brand of hydraulic oil used, kind of filter element or average attachment
operating availability.
Refer to the "changing intervals of hydraulic oil and full flow filter element". See recommended oil chart.
* : Replace every 300 hours.
MAINTENANCE
Parts
Check Oil Level
Check Oil Level
ZX135US-5B
ZX225US-5B, 225USLC-5B
Check Oil Level
ZX135US-5B
ZX225US-5B, 225USLC-5B
Quantity
ZX135US-5B
ZX225US-5B,
225USLC-5B
Std. Model
Demolition and
logging work
for leaks, loose
for cracks, bend, etc.
Quantity
1
1.6 L
1
1
3.2 L
6.2 L
2
4.0 L×2
6.8 L×2
8 50 100 250 500 1000 1500 2000 2500 5000
1
125 L
185 L
1 Each time when hydraulic oil is changed
1
1
1
1
−
7-11
Interval (hours)
8 50 100 250 500 1000 2000
Interval (hours)

*
Page
7-28
7-28
7-28
7-29
7-29
7-30
7-31
Page
7-36
7-37
 
7-40
7-41
7-42
7-44
7-45
7-46
7-46