Hitachi ZAXIS 120-6 class User Manual

7-75
MAINTENANCE
Interval
(hours)
Check Points Abnormalities Remedies
Every 250
hours
Hose covers Damage or leak (4) Replace
Hose ends Damage or leak (5) Replace
Hose covers Exposed reinforcement (6) Replace
Hose covers Crack or blister (7) Replace
Hose Bend (8), Collapse (9) Replace
Hose ends and
Fittings
Deformation or corrosion (10) Replace
Lines
Interval
(hours)
Check Points Abnormalities Remedies
Daily Contact surfaces of
flange joints
Leak (11) Replace
Bolts Loose or leak (11) Retighten or
replace O-ring
Welded surfaces on
flange joints
Leak (12) Replace
Every 250
hours
Flange joint neck Crack (13) Replace
Welded surfaces on
flange joints
Crack (12) Replace
Clamps Missing or
deformation Loose
bolts
Replace or
retighten
Hose and Lines
Interval
(hours)
Check Points Abnormalities Remedies
Daily
Check
Flexible master
coupling
Leak (14) Replace or
retighten
Every 250
hours
Constant torque
clamp
Leak (15) Replace or
retighten
Oil Cooler
Interval
(hours)
Check Points Abnormalities Remedies
Every 250
hours
Oil Cooler Leak (16) Replace
4
5
M115-07-146
7
6
M115-07-147
8
M115-07-148
9
10
M115-07-149
12
13
11
M137-07-001
12
13
M137-07-007
16
M1U1-07-051
MDCD-07-044
14
15
MDC1-07-050

Hitachi ZAXIS 120-6 class Specifications

General

Brand	Hitachi
Model	ZAXIS 120-6 class
Category	Excavators
Language	English