Hitachi ZX27U-2, Operator'S Manual

Page: 193 / 230

MAINTENANCE
7-73
IMPORTANT: The operation torque of adjuster screw
(4) shall be less than 24.5 N
⋅
m (2.5 kgf
⋅
m,
18 lbf
⋅
ft). In case the operating torque
requires more than 24.5 N
⋅
m (2.5 kgf
⋅
m,
18 lbf
⋅
ft), bolts (3) may not be completely
removed yet. Recheck whether all bolts
(3) are completely removed.
In case the canopy or cab is tilted with-
out removing bolts (3), adjuster screw (4)
may be deformed, cracked or damaged.
Then, replace adjuster screw (4).
10. Turn adjuster screw (4) to tilt canopy or cab assembly
toward the front attachment.
Wrench size: 17 mm
11. Turn adjuster screw (4) clockwise until disc plate (5)
on the side of the floor tilt mechanism is moved to the
end of the floor tilt mechanism.
WARNING: In case the cab is mounted, stop tilt-
ing the floor before the disc plate reaches the
striped area. If the floor is tilted into the striped
area, the cab may become unbalance so that it
may fall downward, potentially creating hazard-
ous conditions.
IMPORTANT: Don’t tilt the canopy or cab using other
than the floor tilt mechanism (such as a
crane). Failure to do so may cause
damage to the floor tilt mechanism
and/or floor.
12. Raise fall prevention bar (6) in the arrowed direction
until it comes in contact with the bracket (7) mounted
on the cab floor reverse surface. Lock stopper (8) will
automatically turns and retains the fall prevention bar
in position at this time so that fall prevention bar (6)
does not come off.
13. Before starting to work under the tilted cab floor,
make sure if fall prevention bar (6) does not come off
by jolting fall prevention bar (6) by hand.
WARNING: The fall prevention bar is a redundant
safety device to be functioned in case the floor tilt
mechanism fails. Never attempt to work under the
tilted cab floor supported with only the fall pre-
vention bar. Failure to do so may result in a se-
rious personal accident.
M1M7-07-065
M1M7-07-066
M1MF-07-040
M1M7-07-081
4
5
4
Canopy
5
50 mm (2 in)
4
Cab (Optional)
7
6
8