Thermal and Fan Guards
Thermal and fan guards are
placed around high-
temperature parts of the
engine and fan drive.
7
6
W
ORKING
E
NVIRONMENT
HYDRAULIC EXCAVATOR
PC450
-8R
0
H
Y D R A U L I C
E
X C A V A T O R
PC450
-8R
Large Serrated Steps
Large Handrail
Lock Lever
Locks the hydraulic
pressure to prevent
unintentional move-
ment. Neutral start
function only allows
machine to be start-
ed in lock position.
Low Cab Noise
The newly-designed cab is highly rigid
and has excellent sound absorption
ability. Thorough improvement of noise
source reduction and use of low noise
engine, hydraulic equipment, and air
conditioner allows this machine to
generate a low level of noise.
Low Vibration with Cab Damper
Mounting
PC450-8R uses viscous damper
mounting for cab that incorporates
longer stroke and the addition of a
spring. The new cab damper mounting
combined with high rigidity deck aids
vibration reduction at operator seat.
Wide Newly-designed Cab
Newly-designed wide spacious cab
includes seat with reclining backrest.
The seat height and longitudinal incli-
nation are easily adjusted using a pull-
up lever. You can set the appropriate
operational posture of armrest together
with the console.
Reclining the seat further enables you
to place it into the fully flat state with
the headrest attached.
Pressurized Cab
Optional air conditioner, air filter and a
higher internal air pressure (
+9.0 mm
Aq
+0.35"Aq) prevent external dust
from entering the cab.
Automatic Air Conditioner
(optional)
Enables you
to easily and
precisely set
cab atmos-
phere with
the instru-
ments on the large LCD.
The bi-level control function keeps the
operator's head and feet cool and
warm respectively. This improved air
flow function keeps the inside of the
cab comfortable throughout the year.
Defroster function keeps front glass
clear.
Safety Features
Rubber
Silicon
Oil
Spring
Anti-slip Plates
Highly durable anti-slip
plates maintain superior
traction performance for
the long term.
Cab Dedicated to Hydraulic Excavator
The cab is designed specifically for hydraulic excavators and
gains reinforced strength from the pipe-structured cab frame-
work. The cab framework provides the high durability and
impact resistance with very high impact absorbency. The
seat belt keeps the operator in the safety of the cab during a
rollover.
Pump/Engine Room Partition
Pump/engine room
partition prevents oil
from spraying onto
the engine if a
hydraulic hose
should fail.
