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www.Komatsu.com

CEN00073-04

Materials and specifications are subject to change without notice.

is a trademark of Komatsu Ltd. Japan.

Printed in Japan 200809 IP.As(05)

STANDARD EQUIPMENT

ENGINE AND RELATED ITEMS:

Air cleaner, double element, dry

Variable speed cooling fan, with fan guard

Engine, Komatsu SAA6D140E-5

ELECTRICAL SYSTEM:

Alternator, 50 amp, 24 V

Batteries, 170 Ah, 2 x 12 V

Starting motors, 11kW

Working lights-2 boom, 2 cab top front, 1 cab bottom 

Step light with timer

Auto decelerator

UNDERCARRIAGE:

610 mm

24'' double grouser

8 track/3 carrier rollers (each side)

Hydraulic track adjusters (each side)

Variable track gauge

Sealed track

GUARDS AND COVERS:

Dust-proof net for radiator and oil cooler

Pump/engine room partition cover

Travel motor guards

Strengthened revolving frame underguard

OPG top guard (operator protective guards ISO 10262 level 2 (FOG))

OPERATOR ENVIRONMENT:

Damper mount, all-weather, sound-suppressed cab with tinted
safety glass windows, lockable door, intermittent window wiper
and washer, floormat, cigarette lighter and ashtray 

Multi-function color monitor, electronically-controlled throttle dials,
electric service meter, gauges (coolant temperature, hydraulic oil
temperature and fuel level), caution lights (electric charge, engine
oil pressure, and air cleaner clogging), indicator lights (engine
preheating and swing lock light) level check lights (coolant, engine
oil, and hydraulic oil level), self-diagnostic system with trouble
data memory

Rear view mirror (R,H)

Seat, fully adjustable with suspension

Cab with fixed front window

HYDRAULIC CONTROLS:

Fully hydraulic, with Electronic Open-Center Load-Sensing
(EOLSS) and engine speed sensing (pump and engine mutual
control system)

Two axial piston motors for swing with single-stage relief valve

One axial piston motor per track for travel with counter balance
valve

Two variable capacity piston pumps

Two control valves, 5+4 spools (boom, arm, bucket, swing, and
travel)

Control levers, wrist control levers for arm, boom, bucket, and
swing with PPC system

Control levers and pedals for steering and travel with PPC system

Oil cooler

In-line filter

Heavy lift mode system

Shockless boom control

Swing priority selection system

Two-mode setting for boom

DRIVE AND BRAKE SYSTEM:

Brakes, hydraulic lock travel brakes, oil disc parking

Hydrostatic two travel speed system with planetary triple reduction
final drive

OTHER STANDARD EQUIPMENT:

Automatic swing holding brake

Counterweight, 

11850 kg

26,120 lb

Horn, electric

Marks and plates, English

Paint, Komatsu standard

Large handrails

One-touch engine oil drainage

PM tune-up service connector

Remote greasing for radiator fan drive

Travel alarm

Rear reflector

Anti-slip plates

Corrosion resistor

OPTIONAL EQUIPMENT

Alternator, 75 Amp,  24 V

Air suspension seat

Arms (Backhoe):
PC850-8: 

3600 mm

11'10'' HD arm assembly

PC850SE-8: 

2945 mm

9'8'' SE arm assembly

3600 mm

11'10'' HD arm assembly

Auto air conditioner

Booms (Backhoe):
PC850-8: 

8040 mm

26'5'' boom assembly

PC850SE-8:

7100 mm

23'4'' boom assembly

Cab front guard (ISO 10262 level 2)

Catwalk

Coolant heater

Double flange track roller

12V electric supply

Fire extinguisher

General tool kit

Grease gun, electric pump with indicator

Interconnected horn and warning light

Large-capacity batteries

Lower wiper

Provision for fast fuel fill

Radio AM/FM

Rain visor

Rear view mirror (L,H)

Seat belt 

78 mm

3''

Shoes:

710 mm

28'' double grouser

Spare parts for first service

Track frame undercover (center)

Vandalism protection locks

HORSEPOWER

Gross: 370 kW 

496 HP @ 1800 rpm

Net: 363 kW 

487 HP @ 1800 rpm

OPERATING WEIGHT

PC850-8: 78700–79500 kg 

173,500–175,270 lb

PC850SE-8: 78300–79100 kg 

172,620–174,380 lb

Photo may include optional equipment.

PC850

-8

BACKHOE

PC850SE

-8

BACKHOE

PC

850

H

YDRA

ULIC 

E

XCA

V

A

T

O

R

Summary of Contents for PC850-8 BACKHOE

Page 1: ...al piston motor per track for travel with counter balance valve Two variable capacity piston pumps Two control valves 5 4 spools boom arm bucket swing and travel Control levers wrist control levers fo...

Page 2: ...nce Easy Cleaning of Cooling Unit Fan reverse rotation function facilitates clogged radiator cleaning Centralized Arrangement of Engine Checkpoints Anti slip Plates for improved foot traction Large Ha...

Page 3: ...echnology and adding customer feedback Komatsu is achieving great advancements in technology To achieve both high levels of productivity and economical performance Komatsu has developed the main compo...

Page 4: ...acement time Halves the conventional machine STEP 1 Observing proper safety procedures place tooth onto adapter as shown STEP 2 Insert fastener making sure it is in the unlocked position as shown STEP...

Page 5: ...ght 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 bu...

Page 6: ...tor with 5 step Indication Informs of air cleaner clogging in 5 steps to warn of filter condition Divided Type Engine Cover The divided engine cover allows inspection points around the engine to be ea...

Page 7: ...m 8 9 x 55 9 SWING SYSTEM Driven method Hydraulic motors Swing reduction Planetary gear Swing circle lubrication Grease bathed Swing lock Oil disc brake Swing speed 6 8 rpm PC850 8 PC850SE 8 Operating...

Page 8: ...over front Cs Rating over side Rating at maximum reach Load is limited by hydraulic capacity rather than tipping Ratings are based on SAE standard No J1097 Rated loads do not exceed 87 of hydraulic li...

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