Replace Air Breather Element - Hitachi ZAXIS 450LC-3 Operator's Manual

8

Replace Air Breather Element

--- every 4000 hours
d
WARNING: Hydraulic oil may be hot just after opera-
tion. Hot hydraulic oil may spout, possibly causing
severe burns. Be sure to wait for oil to cool before
starting work.
Replacement Procedures
1. Park the machine on solid and level ground. Fully extend
the bucket cylinder, fully retract the arm cylinder, and
lower the bucket to the ground as illustrated to the right.
Stop the engine.
2. Before replacing element (3), be sure to release pressure
from the hydraulic oil tank by pressing the pressure
release button on the hydraulic oil tank.
3. Turn cover (2) clockwise about 1/4 turn. Turn cap (1)
counterclockwise to remove it.
4. Turn cover (2) counterclockwise to remove it. Then,
remove element (3).
5. Install new element (3). Tighten to install cover (2) until
cover (2) comes in contact with element (3). Then,
further tighten cover (2) 1/4 turn.
6. Securely tighten cap (1) clockwise by hand. While
holding cap (1) by hand so that cap (1) does not rotate,
securely tighten cover (2) by rotating counterclockwise 5
to 10° by hand.
7. Take care never to allow water and/or contaminant to
stay between cover (2) and body (4) (air breathing port).
8. Replace element (3) periodically to keep hydraulic oil
clean and to extend hydraulic components service life.
MAINTENANCE
1
2
3
7-59
ZX450LC
ZX650LC
ZX850LC
4
M104-07-021
-3
M1J1-07-079
Air Breather
M1J7-07-048
-3
M1JB-07-001
-3
M1G6-07-001