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4. Rotate filter case (6) of pilot filter (4) counterclockwise to
remove filter case (6).
5. While rotating filter element (7), pull to remove filter
element (7) downward.
6. Replace O-ring (8) with a new one.
7. Clean the filter O-ring (8) contact area on filter head (5).
8. Securely install O-ring (8) in the O-ring groove on filter
head (5).
9. Coat the seal on new filter element (7) with clean
hydraulic oil. Completely install filter element (7) into
filter head (5) while rotating filter element (7) taking care
not to damage filter element (7).
10. Take care not to allow dust and/or water enter filter case
(6).
11. Install filter case (6) into filter head (5) while rotating
filter case (6) clockwise.
Tightening Torque: 25 to 35 N·m
12. After replacing the filter element, bleed air from the
hydraulic system and check the oil level in the hydraulic
oil tank.
(Refer to the "Bleed Air from Hydraulic System")
If the machine is operated with air mixed in the hydraulic
circuit, damage to the pump may result.
13. Replace filter element (7) at the regular interval to keep
hydraulic oil clean and to extend the service life of the
hydraulic components.
14. Install under cover (2).
Wrench size:
17 mm
15. Tighten cap (1).
MAINTENANCE
(2.5 to 3.5 kgf·m, 18.0 to 26 lbf·ft)
4
8
7
6
7-47
5
ZX17U-5A
ZX26U-5A
MABA-07-032
M503-07-031
MABA-07-018
MABA-07-019
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