Hitachi EX1900-5 Operator's Manual page 205

Interval (hours)
Daily Hose covers
Hose ends
Fittings
Every 250 Hose covers
hours
Hose ends
Hose covers
Hose covers
Hose
Hose
Hose ends and fit-
tings
NOTE: Refer to the illustrations in Fig. 4 for each check point location or for
a description of the abnormality. Use genuine Hitachi parts.
MAINTENANCE
Table 4. Hoses
Check Points Abnormalities
Leak (1)
Leak (2)
Leak (3)
Crack (4)
Crack (5)
Exposed rein-
forcement (6)
Blister (7)
Bend (8)
Collapse (9)
Deformation or
corrosion (10)
Remedies
Replace
Replace
Retighten or replace
Replace
Replace
Replace
Replace
Replace
Replace
(Use proper bend ra-
dius)
Replace
7-73
2
3
1
2
3
M115-07-145
4
5
M115-07-146
7
6
M115-07-147
8
M115-07-148
9
10
M115-07-149
Fig. 4