Change Hydraulic Oil; Suction Filter Cleaning - Hitachi Zaxis 850LC-3 Operator's Manual

Change Hydraulic Oil

3
4

Suction Filter Cleaning

--- every 4000 hours, 2500 hours
or 1500 hours
WARNING: Hydraulic oil may be hot. Wait for oil to
cool before starting work.
IMPORTANT: Hydraulic oil changing intervals differ ac-
cording to kind of hydraulic oils used. (See
Recommended Oil Chart in this group)
1. Park the machine on a level surface with the upperstruc-
ture rotated 90° for easier access.
2. (Backhoe)
Position the machine with the arm cylinder fully retracted
and the bucket cylinder fully extended.
3. Lower the bucket to the ground.
4. Turn the auto-idle switch off.
IMPORTANT: The turbocharger may be damaged if the en-
gine is not properly shut down.
5. Run the engine at slow idle speed without load for five
minutes.
6. Stop the engine. Remove the key from the key switch.
7. Pull the pilot control shut-off lever to the LOCK position.
8. Clean the top of the hydraulic oil tank to keep dirt out of
the hydraulic system.
MAINTENANCE
3
2
7-34
W1JB-04-02-016
6
M1J1-07-006
2
M1JB-07-001
M1JB-07-010