Optional Attachments And Devices; Counterweight Removal - Hitachi ZAXIS 450LC-3 Operator's Manual

COUNTERWEIGHT REMOVAL

IMPORTANT: This machine is equipped with 2 shutoff
valves for the counterweight removal/
install system. Refer to the shutoff valve
orientation table for proper shutoff valve
settings.
Shutoff Valve Orientation Table
NORMAL
WORKING
VALVE 1
OPEN
(To Hyd Cyl Head)
VALVE 2 (To Tank) OPEN
f
NOTE: Counterweight removal procedure must be
performed with machine located on a level surface.
1. Park the machine on a level surface with the
upperstructure rotated 90°.
2. Lower the bucket to the ground.
3. Turn the auto-idle switch off.
IMPORTANT: The turbocharger may be damaged if the
engine is not properly shut down.
4. Run the engine at slow idle speed without load for five
minutes.
IMPORTANT: Do not attempt to remove or install
counterweight with the side flame
(track gauge) in the narrow (transport)
position. Before removing or installing the
counterweight, the side flame (track gauge)
must be widened to the work position. To
change the side flame (track gauge), see
procedure in this section.
5. Stop the engine.
6. Pull the pilot control shut-off lever to the LOCK position.
d
CAUTION: Avoid personal injury from unexpected
counterweight movement. DO NOT go directly
under machine counterweight. To remove or install
counterweight hardware, go under machine entering
from the area on either SIDE of the counterweight.
Clear everyone from the area before removing or
installing the counterweight.
Counterweight Weights
ZX450LC : 8230 kg (18100 lb)
-3
ZX650LC : 10100 kg (22300 lb)
-3
ZX850LC : 12500 kg (27600 lb)
-3
7. Remove bolts (1) to remove counterweight top cover
plate (2).
8. Open the engine hood.
9. Remove machine mainframe bottom access covers (3)
and (5).
10. Remove lift cylinder guard (4).
(Except ZX850LC
-3

OPTIONAL ATTACHMENTS AND DEVICES

COUNTERWEIGHT COUNTERWEIGHT
OPERATION
OPEN
CLOSE
)
2
REMOVED
CLOSE
OPEN
2
13-1
1
ZX450LC
-3
1
ZX650LC , 850LC
-3 -3
3
4
ZX450LC , 650LC
-3 -3
3
ZX850LC
-3
4
M116-06-019
M1J3-NACW1-001
M1J3-NACW1-002
5
M116-06-020
5
M1J3-NACW1-003
M1J3-13-003