7-63
1. Park the machine on a firm, level surface. Lower the buck
-
et to the ground. Stop the engine. Remove key from the
key switch. Push lock lever to the LOCK position.
2. Check for kinked hoses, and hoses that rub against each
other parts for leaks.
Check hoses at the check points indicated below for leaks
and other damage that may result in future leaks. If any
abnormalities are found, replace or retighten them, as
shown in Table 4.
3. Repair or replace any loose or damaged hoses. Never in
-
stall bent or damaged hoses.
Table 4. Hose
Interval(hours) Check Points Abnormalities Remedies
Daily Hose ends
Soutache braid
hose
Leak (1)
Friction (2)
Crack (2)
Retighten or
replace
Replace
Replace
Every 250
hours
Soutache braid hose
Hose ends
Hose
Hose
Hose ends and fit
-
tings
Crack (3)
Crack (4)
Bend (5)
Collapse (6)
Deformation or
Corrosion (7)
Replace
Replace
Replace
Replace
(Use proper bend ra
-
dius)
Replace
NOTE: Refer to the illustrations in Fig.1 for each check point location or for a description of
the abnormality. Use genuine Hitachi parts.
7
M4GB-07-071
M4GB-07-072
M4GB-07-073
M4GB-07-074
Fig.1
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