Change Hydraulic Oil; Suction Filter Cleaning - Hitachi Zaxis 33U-5A Operator's Manual

Change Hydraulic Oil

--- every 1000 hours or 2000 hours
(when using the filter-paper element)
--- every 1500 hours or 3000 hours
(when using the high performance element)

Suction Filter Cleaning

--- when hydraulic oil is changed
d
CAUTION: Hydraulic oil may be hot just after
operation. Wait for oil to cool before starting work.
IMPORTANT: Hydraulic oil changing intervals differ
according to kind of hydraulic oils, filter elements and
attachments used and breaker operating availability.
(Refer to 7-33, 7-34 pages)
IMPORTANT: Do not use hydraulic oils other than listed in
the "Brand Names of Recommended Hydraulic Oil".
1. Park the machine following the same procedures as
described on page 7-7 for preparation for inspection and
maintenance.
2. Open the tank cover. Clean the top of the hydraulic oil
tank to keep dirt out of the hydraulic system.
3. Loosen cap (1) to release pressure from the hydraulic oil
tank.
4. Remove cover (2).
5. Remove oil using a suction pump. The hydraulic oil tank
capacity up to specified oil level is approximately A.
Model
ZX33U-5A, 38U-5A
ZX48U-5A, 55U-5A
ZX65USB-5A
MAINTENANCE
A
50 L (13.2 US gal)
66 L (17.4 US gal)
107.5 L (28.4 US gal)
7-37
1
2
ZX33U-5A, 38U-5A
1
2
ZX48U-5A, 55U-5A, 65USB-5A
M1M7-05-024
MADB-00-017
MADB-00-018