Maintenance Guide - Hitachi ZX27U-2 Operator's Manual

MAINTENANCE GUIDE

A. GREASING (See Page 7-11)
1. Front Joint Pins (Incl. around the swing post)
2. Bucket and Link Pins
3. Blade Pins
4. Swing Bearing
5. Swing Internal Gear
6. Control Lever Universal Joint
7. Tilt Mechanism
NOTE: Grease all submerged pins after operating in water.
Grease all pins daily during break-in operation for 50 hours.
Grease all pins every 100 hours only during first time operation up to 500 hours.
B. ENGINE (See Page 7-18)
1. Engine oil
2. Replace engine oil filter
NOTE: The oil life is shortened more than normal under high temperature operating, shorten the maintenance interval.
C. TRANSMISSION (See Page 7-20)
1. Travel Reduction
Gear
D. HYDRAULIC SYSTEM (See Page 7-22)
1. Check Hydraulic Oil Level
2. Drain Hydraulic Oil Tank Sump
3. Change Hydraulic Oil
4. Clean Suction Filter
5. Replace Full Flow Filter Element
6. Replace Pilot Filter Element
7. Check Hoses and Lines
NOTE: Hydraulic oil changing intervals differ according to kind of hydraulic oils used.
See recommended oil chart.
For the first time only.
Parts
Parts
Check Oil Level
ZX27U ,
-2
ZX30U , ZX35U
-2
Change
ZX40U , ZX50U
-2
Parts
Check Oil Level
ZX27U ,
-2
ZX30U , ZX35U
-2
Change
ZX40U , ZX50U
-2
Parts
ZX27U ,
-2
ZX30U , ZX35U
-2
ZX40U , ZX50U
-2
for leaks or looseness
for cracks, bend, etc.
MAINTENANCE
Quantity
8
9
5
4
1
1
2
1
Quantity
–
7.2 L
(1.9 US gal)
-2
8.6 L
-2
(2.27 US gal)
1
Quantity
–
0.6 L
(0.63 US qt)×2
-2
0.9 L
-2
(0.95 US qt)×2
Quantity
1
1
58 L
(15.3 US gal)
-2
85 L
-2
(22.5 US gal)
1
1
1
–
–
7-7
Interval (hours)
50 100 250
Intervals (Hours)
8 50 100 250
Interval (hours)
8 50 100 250
Interval (hours)
8 50 100 250
When changing hydraulic oil
500 1000 2000
Or every year
Or every year
Or every year
500 1000 2000
500 1000 2000
500 1000 2000