8
9
W
ORKING
E
NVIRONMENT
HYDRAULIC EXCAVATOR
PC850
-8
0
Large Comfortable Cab
Comfortable Cab
New PC850-8’s cab offers an exceptionally comfortable
operating environment. The large cab enables full flat
reclining of the seat back with headrest.
Pressurized Cab
The optional air conditioner, air filter and a higher internal air
pressure (
6.0 mm Aq
0.2" in Aq) prevent external dust
from entering the cab.
Low Noise Design
Noise level is remarkably reduced, not only engine noise but
also swing and hydraulic relief noise.
Low Vibration with Cab Damper Mounting
PC850-8 uses a new, improved cab damper mount system
that incorporates longer stroke and the addition of a spring.
The new cab damper mounting combined with a
strengthened left and right side deck, aids vibration reduction
at the operator’s seat.
Vibration at floor is reduced from 120 dB (VL) to 115 dB (VL).
dB (VL) is index for expressing
size of vibration.
Cab Damper
Mounting
Multi-Layer
Viscous Mount
Floor Vibration
Comparison of Riding Comfort
Conditions:
●
Traveling over obstacle
one side track
●
Traveling speed forward high
Vertical direction on graph shows size of vibration.
Photo may include optional equipment.
Multi-position Controls
The multi-position, PPC (proportional pressure control)
levers allow the operator to work in comfort
while maintaining precise control. A double-slide
mechanism allows the seat and control levers to move
together or independently, allowing the operator
to position the controls for maximum
productivity and comfort.
Safety Features
Step light with timer
provides light for about one
minute to allow the operator to
get off the machine safely.
Pump/engine room partition
prevents oil from spraying on
the engine if a hydraulic hose
should burst.
Thermal and fan guards
are
placed around high-temperature
parts of the engine and fan drive.
Seat Sliding Amount: 340 mm 13.4",
increased 120 mm 4.7"
Seat with headrest
reclined full flat
Defroster (optional)
Cab Frame Mounted Wiper
Bottle Holder and
Magazine Rack
The cab interior
is spacious and provides a comfortable working
environment…
Automatic Air Conditioner (optional)
A 6,900 kcal air conditioner
is utilized. 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.
H
Y D R A U L I C
E
X C A V A T O R
PC850
-8
Anti-slip Plates
Spiked plates on working
surfaces provide anti-slip
performance.
Anti-Slip Plates
Horn interconnected with
warning light (optional)
give
visual and audible notice of the
excavator’s operation when
activated.
Rigid and Safe Operator's Cab
OPG top guard
The OPG top guard securely
protects the operator's cab and
conforms to the ISO standard.
Single sheet fixed glass
The glass installed in the machine
has excellent visibility since it is
laminated to prevent shortening and
has less vibration.
See-through skylight equipped with a sun shade
The upward visibility is excellent.
Additional head lamp
Night operation is safe.
Lower wiper (optional)
Lower windshield wiper improves
visibility in rain.
Horn interconnected with warning
light (optional)
give visual and
audible notice of the excavator’s operation when activated.
Rubber
Silicon
Oil
Spring
Warning light (optional)
