Replace Full-Flow (Return) Filter Element; Comes In Contact With Escaping Hydraulic Oil. Wait For; Park The Machine Following The Same Procedures As Described On Page 7-7 For Preparation For Inspection And Maintenance; Zx17U-5N Maba-07-022 - Hitachi ZAXIS 17U-5N Owner's Manual

Replace Full-Flow (Return) Filter Element

--- every 500 hours (first time after 250 hours)
When using the high performance element
(optional)
--- every 1000 hours (first time after 500 hours)
IMPORTANT: Changing interval differs according to the
brand of hydraulic oil used, kind of filter element or
average attachment operating availability. (Refer to
7-36, 7-37)
d
WARNING: Hydraulic oil may be hot and pressurized
just after operation. Severe burns may result if skin

comes in contact with escaping hydraulic oil. Wait for

the oil to cool before starting any maintenance work.
1. Park the machine following the same procedures as
described on page 7-7 for preparation for inspection and
maintenance.
2. Before replacing element (6), be sure to bleed air
pressure from the hydraulic oil tank by loosening cap (7).
3. Loosen bolts (1) (4 used) to remove cover (2) and O-ring
(3). When removing cover (2), slowly remove cover (2)
while pressing cover (2) downward so that spring (4)
does not fly off.
IMPORTANT: Especially when removing the filter, be
aware that the remaining oil in the filter may spill. Use
extra care.
4. Remove spring (4), valve (5) and element (6).
5. Take extra care never to allow water or dust to enter the
filter case.
MAINTENANCE
7
2
7
2
7-44
ZX17U-5N
ZX26U-5N
1 2 3
4
5
6
M1M7-05-024
MABA-07-022
MABA-07-024
MADB-07-017