Komatsu PC27R-8 Manual

PC20R-8
WEAM000101
PC27R-8
Operation &
Maintenance Manual
HYDRAULIC EXCAVATOR
SERIAL NUMBER
PC20R-8 - F30791 and up
PC27R-8 - F31103 and up
Unsafe use of this machine may cause serious injury
or death. Operators and maintenance personnel
must read this manual before operating or
maintaining this machine. This manual should be
kept inside the cab for reference and periodically
reviewed by all personnel who will come into contact
with the machine.
WARNING

FOREWORD
1
1.1 FOREWORD
•This manual has been carried out by Komatsu Utility in order to supply their customers with all the necessary
information on the machine and the safety regulations related to it, together with the use and maintenance in-
structions that enable the operator to exploit the capacity of the machine with optimal results and to keep the
machine efficient over time.
•The operation manual, together with the spare parts catalogue, is an integral part of the machine and must ac-
company it, even when it is resold, until its final disposal.
•The manual must be handled with the greatest care and always kept on board the machine, so that it can be
consulted at any moment; it must be placed in the appropriate compartment inside the seat support, where also
the ownership documents and the logbook are usually kept.
•This manual must be given to the persons who have to use the machine and carry out the routine maintenance
operations; they must read the contents carefully more than once, in such a way as to clearly understand what
are the correct operating conditions and the dangerous conditions that must be avoided.
In case of loss or damage, request a new copy to Komatsu Utility or your Komatsu Utility Dealer.
•The illustrations contained in this manual may represent machine configurations available on request.
The machines are constantly upgraded in order to increase their efficiency and reliability; this manual sums up
all the information regarding the state of technical progress at the moment in which the machine is launched on
the market.
Consult your Komatsu Utility Dealer for any updated information.
•Punctual periodic annotations regarding the maintenance operations that have been carried out are important
to have a clear prospect of the situation and to know exactly what has been done and what has to be done after
the next maintenance interval. Therefore, it is advisable to consult either the hour meter and the maintenance
plan frequently.
•Over the years Komatsu Utility Dealers have gathered considerable experience in customer service.
If more information is needed, do not hesitate to contact your Komatsu Utility Dealer: he always knows how to
get the best performance from the machine, he can suggest the use of the equipment that is most suitable for
specific needs and can provide the technical assistance necessary for any change that may be required to con-
form the machine to the safety standards and traffic rules.
Furthermore, Komatsu Utility Dealers also ensure their assistance for the supply of Komatsu Utility genuine
spare parts, which alone guarantee safety and interchangeability.
•The table included in this manual must be filled in with the machine data, which are the data that must always
be indicated to the Dealer when requiring assistance and ordering spare parts.
CAUTION
•The incorrect use of the machine and inappropriate maintenance operations may cause serious inju-
ries and even death.
•Operators and maintenance personnel must carefully read this manual before using the machine or
performing maintenance operations.
•Any serious accident that may occur during the use of the machine or during maintenance operations
is due to failure to comply with the instructions given herein.
•The procedures and precautions described in this manual are valid for application to the machine only
when it is used correctly.
If the machine is used for any purpose or in any way other than those described herein, the operator
shall be responsible for his own safety and for the safety of any other person involved.

INFORMATION ON SAFETY
2
1.2 INFORMATION ON SAFETY
Many accidents are caused by insufficient knowledge of and failure to comply with the safety regulations pre-
scribed for the maintenance operations that must be performed on the machine.
In order to avoid accidents, before starting work and before carrying out any maintenance operation, carefully
read and be sure to understand all the information and warnings contained in this manual and given on the plates
applied onto the machine, so that you can follow the instructions without making mistakes.
To identify the messages regarding safety that are included in this manual and written on the machine plates, the
following words have been used.
• This word is used in the safety warnings in the manual and on the plates when
the situation is dangerous and it may possibly result in serious injuries or even
death.
These messages describe the safety precautions to be taken in order to avoid
any risk. Non-compliance with these instructions may also result in serious
damage to the machine.
• This word is used in the safety warnings in the manual and on the plates to sig-
nal risks that may cause moderate damage or injuries.
The message can be used even to indicate the risk of damage to the machine
only.
• This word is used when precautions are indicated, which must be taken to
avoid actions that may shorten the life of the machine.
Komatsu Utility cannot reasonably predict every circumstance that might involve a potential hazard during the op-
eration or maintenance of the machine; for this reason, the safety messages included in this manual and applied
onto the machine may not include all possible safety precautions.
If all the procedures and operations prescribed for this machine are kept to, you can be sure that the operator
and the persons in the vicinity can work in total safety, with no risk of damaging the machine. In case of doubt re-
garding the safety measures necessary for some procedures, contact Komatsu Utility or your local Dealer.
DANGER
•Before starting any maintenance operation, position the machine on a firm and level surface, lower the
equipment to the ground, engage the safety locks of either the equipment and the controls and stop the
engine.
DANGER
•To make the information clearer, some illustrations in this manual represent the machine without safety
guards. Do not use the machine without guards and do not start the engine when the engine protection
casing is open, if this is not expressly prescribed for some specific maintenance operations.
DANGER
CAUTION
IMPORTANT
☞

INFORMATION ON SAFETY
3
DANGER
•It is strictly forbidden to modify the setting of the hydraulic system safety valves; Komatsu Utility can-
not be held liable for any damage to persons, property or the machine, if this has been tampered with
by modifying the standard setting of the hydraulic system.
DANGER
•Before carrying out any electrical welding, disconnect the battery and the alternator (See “2.8.13 PRE-
CAUTIONS CONCERNING THE BATTERY AND THE ALTERNATOR”).
DANGER
•Install only authorized additional equipment (See “6.1.3 CHARACTERISTICS OF THE OPTIONAL
EQUIPMENT”).

INTRODUCTION
4
1.3 INTRODUCTION
1.3.1 INTENDED USES
1.3.2 IMPROPER OR UNAUTHORIZED USES
The KOMATSU UTILITY MACHINES described in this manual have been designed and constructed to be used
mainly for EXCAVATION and EARTH-MOVING OPERATIONS.
If provided with suitable safety devices, they can be used with authorized optional equipment having the charac-
teristics illustrated at point “6.1 AUTHORIZED OPTIONAL EQUIPMENT”.
CAUTION
•This paragraph describes some of the improper or unauthorized uses of the machine; since it is impos-
sible to predict all the possible improper uses, if the machine happens to be used for particular applica-
tions, contact your Komatsu Utility Dealer before carrying out the work.
IMPORTANT
☞
•The instructions regarding the authorized optional equipment are given in the relevant operation and
maintenance manuals; if the equipment is supplied by Komatsu Utility, these publications are enclosed
to this manual.
•The instructions regarding the assembly of the authorized equipment, the controls requiring special ar-
rangements on the machine and the hydraulic couplings necessary for the operation of the equipment
are grouped in the final section of this manual.
KOMATSU UTILITY MACHINES are constructed exclusively for the handling, excavation and treatment of inert
materials; therefore, the following uses are absolutely forbidden:
•USE OF THE MACHINE BY MINORS OR INEXPERIENCED PERSONS.
•USE OF THE MACHINE FOR LIFTING PERSONS OR OBJECTS.
•TRANSPORT OF CONTAINERS WITH FLAMMABLE OR DANGEROUS FLUIDS.
•USE OF THE BUCKET FOR DRIVING OR EXTRACTING PILES.
•USE OF THE MACHINE FOR TOWING DAMAGED VEHICLES.

INTRODUCTION
5
1.3.3 MAIN CHARACTERISTICS
1.3.4 RUNNING-IN
•Simple and easy operation
•Hydrostatic transmission obtained through two axial piston motors that operate epicyclic reduction gears.
•Upper structure rotation achieved through an orbital hydraulic motor (for PC20R only).
•Upper structure rotation achieved through an axial piston hydraulic motor acting on an epicyclic reduction gear
(for PC27R only)
•Main equipment servolevers ensuring also combined movements that can be modulated proportionally and
continually.
•Pedal controls for the boom swing and the optional equipment.
•Lever controls for travel and blade.
•Travel speed increase achieved through a pedal-operated push button.
•Complete series of instruments visible from the operating position.
•Lever accelerator.
•Easy maintenance with simplified intervals.
Every machine is scrupulously adjusted and tested before delivery.
A new machine, however, must be used carefully for the first 100 hours, in order to ensure proper running-in of
the various components.
If the machine is subjected to excessive work load at the beginning of operation, its potential yield and its func-
tionality will be shortly and untimely reduced.
Every new machine must be used carefully, paying special attention to the following indications:
•After the start, let the engine idle for 5 minutes, in such a way as to warm it up gradually before actual opera-
tion.
•Avoid operating the machine with the limit loads allowed or at high speed.
•Avoid abrupt starts or accelerations, useless sudden decelerations and abrupt reversals.
•After the first 250 hours, carry out the following operations, in addition to those to be performed every 250
hours:
1 - Change the oil in the travel reduction gears.
2 - Check and adjust the engine valve clearance.
SYNTHETIC BIODEGRADABLE OIL TYPE HEES
On machines in which the synthetic biodegradable oil type HEES is used, the following operations are to be per-
formed besides the standard maintenance operations:
•After the first 50 hours of operation, change the hydraulic circuit drain filter.
•After the first 500 hours of operation, change the hydraulic circuit oil.
IMPORTANT
☞
•When changing the oil filters (cartridges), check their inner part to make sure that there are no depos-
its.
If considerable deposits are observed, find out what may have caused them before starting the ma-
chine.
•The number of operating hours is indicated by the hour meter.

PRODUCT IDENTIFICATION
6
1.4 PRODUCT IDENTIFICATION
1.4.1 MACHINE SERIAL NUMBER
1.4.2 MACHINE IDENTIFICATION PLATE
The KOMATSU UTILITY EXCAVATOR and its main components are identified by serial numbers stamped on the
identification plates.
The serial number and the identification numbers of the components are the only numbers that must be indicated
to the Dealer when requiring assistance and ordering spare parts.
RWA08630
The machine serial number is stamped on the front upper part of
the main frame, on the left side.
RWA08640
The KOMATSU UTILITY EXCAVATORS described in the
present manual are provided with the CE mark, which certifies
that they are in compliance with the harmonized standards of the
European Community.
The plate provided with the mark is applied onto the front wall of
the main frame, on the left side.
kg
kw
kg
kg
MODELLO - MODEL
TYP - MODELE
MATRICOLA N˚ - SERIAL N˚
FABR. NR. - SERIE NR.
ANNO - YEAR
BAUJAHR - ANNEE
MASSA TOTALE MAX - TOTAL MAX WEIGHT
ZUL. GESAMTGEWICHT - POIDS TOTAL MAX
POTENZA MOTORE - ENGINE POWER
LEISTUNG - PUISSANCE MOTEUR
MASSA MAX ASSE ANT. - MAX WEIGHT FRONT AXLE
ZUL. ACHSLAST VORN - POIDS MAX ESSIEU AV
MASSA MAX ASSE POST. - MAX WEIGHT REAR AXLE
ZUL. ACHSLAST HINTEN - POIDS MAX ESSIEU AR
kg
kw
kg
kg
RYA11760
20T-98-RB26441
MANUFACTURED BY KOMATSU UTILITY EUROPE S.p.A.
36025 NOVENTA VICENTINA (VI) ITALY UNDER LICENSE FROM KOMATSU LTD
MANUFACTURED BY KOMATSU UTILITY EUROPE S.p.A.
36025 NOVENTA VICENTINA (VI) ITALY UNDER LICENSE FROM KOMATSU LTD
MODEL
SERIAL N
YEAR
TOTAL MAX WEIGHT
ENGINE POWER
MAX WEIGHT FRONT AXLE
MAX WEIGHT REAR AXLE

PRODUCT IDENTIFICATION
7
1.4.3 ENGINE SERIAL NUMBER AND EX-
HAUST GAS EMISSION PLATE
1.4.4 TRAVEL REDUCTION GEAR SERIAL
NUMBER
RWA08650
The engine serial number is stamped on the plate positioned on
the top of the engine cylinder head cover.
The exhaust gas emission plate is applied on the top of the en-
gine cylinder head cover.
RWAA10520
RWA04970
The serial number of the travel reduction gear is stamped on the
plate positioned on the outer side of the reduction gear cover.

PRODUCT IDENTIFICATION
8
1.4.5 SWING MOTOR SERIAL NUMBER
(for PC20R only)
1.4.6 SWING REDUCTION GEAR SERIAL
NUMBER (for PC27R only)
1.4.7 CAB SERIAL NUMBER
RWA09980
The serial number of the swing reduction gear is stamped on the
plate positioned on the swing motor head.
RWA09990
The serial number is stamped on the plate positioned laterally on
the reduction gear body.
RYAA0050
The CAB serial number is stamped on the plate positioned on
the top left side.

PRODUCT IDENTIFICATION
9
1.4.8 SERIAL NUMBERS AND DEALER’S ADDRESS
Machine n. Model
Engine n.
Swing motor (for PC20R only) n.
Swing reduction gear (for PC27R only) n.
Cab n.
Dealer:
Address:
Tel.
Person to contact:
NOTES:
Travel reduction gear n.

10

TABLE OF CONTENTS
11
Page
TABLE OF CONTENTS
SAFETY AND ACCIDENT PREVENTION
1.1 FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 INFORMATION ON SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.1 INTENDED USES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.2 IMPROPER OR UNAUTHORIZED USES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.3 MAIN CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.4 RUNNING-IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 PRODUCT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4.1 MACHINE SERIAL NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4.2 MACHINE IDENTIFICATION PLATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4.3 ENGINE SERIAL NUMBER AND EXHAUST GAS EMISSION PLATE. . . . . . . . . . . . . . . . . . 7
1.4.4 TRAVEL REDUCTION GEAR SERIAL NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4.5 SWING MOTOR SERIAL NUMBER (for PC20R only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4.6 SWING REDUCTION GEAR SERIAL NUMBER (for PC27R only) . . . . . . . . . . . . . . . . . . . . 8
1.4.7 CAB SERIAL NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4.8 SERIAL NUMBERS AND DEALER’S ADDRESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 SAFETY, NOISE AND VIBRATION PLATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.1.1 POSITION OF THE SAFETY PLATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.1.2 PICTOGRAMS AND RELEVANT MEANINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.1.3 POSITION OF THE NOISE PLATES ON MACHINES WITH CAB . . . . . . . . . . . . . . . . . . . . 26
2.1.4 POSITION OF THE NOISE PLATES ON MACHINES WITH CANOPY . . . . . . . . . . . . . . . . 27
2.1.5 VIBRATIONS TO WHICH THE OPERATOR IS SUBJECTED . . . . . . . . . . . . . . . . . . . . . . . 27
2.2 GENERAL PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.2.1 GENERAL SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.2.2 SAFETY DEVICES AND GUARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.2.3 CLOTHING AND PERSONAL PROTECTION ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.2.4 UNAUTHORIZED MODIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.2.5 LEAVING THE OPERATOR’S SEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.2.6 GETTING ON AND OFF THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.2.7 PREVENTING FIRES DUE TO FUEL AND OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.2.8 PREVENTING BURNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.2.9 PREVENTING DAMAGE DUE TO ASBESTOS POWDER . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.2.10 PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT . . . . . . . . . . . . . . . . . . . . 32
2.2.11 FIRE EXTINGUISHERS AND FIRST AID KIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.2.12 PRECAUTIONS CONCERNING THE CAB STRUCTURE . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.2.13 PRECAUTIONS CONCERNING THE EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.3 PRECAUTIONS TO BE TAKEN BEFORE STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . 33
2.3.1 SAFETY ON THE WORK SITE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.3.2 FIRE PREVENTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.3.3 PRECAUTIONS TO BE TAKEN FOR THE OPERATOR'S CAB . . . . . . . . . . . . . . . . . . . . . . 33
2.3.4 ROOM VENTILATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2.3.5 PRECAUTIONS TO BE TAKEN FOR THE LIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2.3.6 CLEANING THE WINDOWS - CHECKING THE WINDSHIELD WIPER BLADES . . . . . . . . 34

TABLE OF CONTENTS
12
Page
2.4 PRECAUTIONS TO BE TAKEN WHEN WORKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2.4.1 STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2.4.2 CHECK THE DIRECTION BEFORE STARTING THE MACHINE . . . . . . . . . . . . . . . . . . . . . 35
2.4.3 CHECKS FOR TRAVELLING IN REVERSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2.4.4 MOVING THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.4.5 MOVING ON SLOPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
2.4.6 WORKING ON SLOPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2.4.7 UNAUTHORIZED OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2.4.8 PREVENTING ELECTROCUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
2.4.9 VISIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.4.10 WORKING ON ICY OR SNOW-COVERED SURFACES . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.4.11 PREVENTING DAMAGE CAUSED BY THE WORK EQUIPMENT . . . . . . . . . . . . . . . . . . . . 40
2.4.12 WORKING ON LOOSE GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2.4.13 PARKING THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.5 TRANSPORTING THE MACHINE ON MOTOR VEHICLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.5.1 LOADING AND UNLOADING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.5.2 TRANSPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.6 BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2.6.1 PREVENTING RISKS THAT MAY BE DUE TO THE BATTERY . . . . . . . . . . . . . . . . . . . . . . 43
2.6.2 STARTING WITH BOOSTER CABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2.7 PRECAUTIONS FOR THE REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2.8 PRECAUTIONS FOR MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2.8.1 WARNING PLATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2.8.2 TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2.8.3 PERSONNEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
2.8.4 EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.8.5 WORKING UNDER THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.8.6 CLEANING THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.8.7 USE OF THE ENGINE DURING MAINTENANCE OPERATIONS . . . . . . . . . . . . . . . . . . . . 47
2.8.8 PERIODICAL CHANGE OF THE PARTS THAT ARE CRITICAL FOR SAFETY . . . . . . . . . 47
2.8.9 STOP THE ENGINE BEFORE CARRYING OUT ANY MAINTENANCE OPERATION
OR INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
2.8.10 RULES TO BE FOLLOWED DURING FUEL OR OIL TOPPING UP . . . . . . . . . . . . . . . . . . 48
2.8.11 CHECKING THE COOLANT LEVEL IN THE RADIATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.8.12 USING LAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.8.13 PRECAUTIONS CONCERNING THE BATTERY AND THE ALTERNATOR . . . . . . . . . . . . 49
2.8.14 PRECAUTIONS CONCERNING THE STARTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.8.15 HANDLING HIGH-PRESSURE PIPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.8.16 PRECAUTIONS TO BE TAKEN WHEN HANDLING HIGH-PRESSURE OIL . . . . . . . . . . . . 50
2.8.17 PRECAUTIONS FOR MAINTENANCE OPERATIONS AT HIGH TEMPERATURES AND
HIGH PRESSURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
2.8.18 COOLING FAN AND BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2.8.19 WASTE MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
2.8.20 PRECAUTIONS FOR THE USE OF THE synthetic biodegradable oil type HEES . . . . . . . . 51

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DESCRIPTION AND USE OF THE MACHINE
3.1 SAFETY LOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.1.1 MACHINE LOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.2 GENERAL VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.2.1 GENERAL VIEW OF THE MACHINE WITH CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.2.2 GENERAL VIEW OF THE MACHINE WITH CANOPY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
3.2.3 GENERAL VIEW OF THE DRIVER’S SEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3.3 INSTRUMENTS AND CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3.3.1 INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3.3.2 WARNING LIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.3.3 SWITCHES AND PUSH BUTTONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
3.3.4 ELECTRICAL ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
3.3.5 MACHINE CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
3.4 FUSES AND RELAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.4.1 FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.4.1.1 EQUIPMENT FUSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3.4.1.2 MAIN FUSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
3.4.2 RELAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
3.5 GUARDS AND DRIVER’S SEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
3.5.1 ENGINE HOOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
3.5.2 RIGHT COUNTERWEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3.5.3 CANOPY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3.5.4 CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
3.5.5 VENTILATION AND HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
3.5.6 SEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
3.5.7 SAFETY BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
3.5.8 EMERGENCY EXIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
3.5.9 TECHNICAL DOCUMENTATION CASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
3.5.10 FIRE EXTINGUISHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
3.5.11 FIRST AID KIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
3.6 USE OF THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
3.6.1 CHECKS BEFORE STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
3.6.1.1 VISUAL CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
3.6.1.2 DAILY CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
3.6.1.3 OPERATIONAL CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
3.6.2 STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
3.6.2.1 STARTING WITH WARM ENGINE OR IN TEMPERATE CLIMATES . . . . . . . . . 89
3.6.2.2 STARTING WITH COLD ENGINE OR IN COLD CLIMATES . . . . . . . . . . . . . . . . 90
3.6.3 WARMING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
3.6.4 HEATING THE HYDRAULIC OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
3.6.5 HOW TO MOVE THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
3.6.5.1 STEERING (CHANGING DIRECTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
3.6.5.2 MOVING ON SLOPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
3.6.5.3 MAXIMUM IMMERSION DEPTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

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3.7 PARKING THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
3.7.1 PARKING ON LEVEL GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
3.7.2 PARKING ON SLOPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
3.8 STOPPING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
3.9 TRANSPORTING THE MACHINE ON MOTOR VEHICLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
3.9.1 LOADING AND UNLOADING THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
3.9.2 TRANSPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
3.10 LIFTING THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
3.11 PRECAUTIONS TO BE TAKEN IN THE COLD SEASON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
3.11.1 FUEL AND LUBRICANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
3.11.2 COOLANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
3.11.3 BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
3.11.4 OTHER PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
3.11.5 PRECAUTIONS TO BE TAKEN AT THE END OF WORK . . . . . . . . . . . . . . . . . . . . . . . . . . 103
3.12 PRECAUTIONS TO BE TAKEN IN THE WARM SEASON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
3.13 USING THE WORK EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
3.13.1 ORGANIZING THE WORK AREA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
3.13.2 POSITIONING THE MACHINE FOR DIGGING OPERATIONS . . . . . . . . . . . . . . . . . . . . . . 106
3.13.3 DIGGING METHOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
3.13.4 CHANGING THE BUCKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
3.14 LONG PERIODS OF INACTIVITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
3.14.1 BEFORE THE PERIOD OF INACTIVITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
3.14.2 DURING THE PERIOD OF INACTIVITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
3.14.3 AFTER THE PERIOD OF INACTIVITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
3.15 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
3.15.1 OCCURRENCES THAT ARE NOT FAILURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
3.15.2 HOW TO REMOVE THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
3.15.3 AFTER THE FUEL HAS RUN OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
3.15.4 IF THE BATTERY IS DOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
3.15.4.1 STARTING WITH BOOSTER CABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
3.15.5 OTHER TROUBLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
3.15.5.1 ELECTRICAL CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
3.15.5.2 HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
3.15.5.3 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

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MAINTENANCE
4.1 GUIDE TO MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
4.2 MAINTENANCE NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
4.2.1 NOTES REGARDING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
4.2.1.1 ENGINE OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
4.2.1.2 COOLANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
4.2.1.3 FUEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
4.2.2 NOTES REGARDING THE HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
4.2.3 NOTES REGARDING THE ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
4.2.4 NOTES REGARDING LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
4.2.5 PARTS SUBJECT TO WEAR THAT PERIODICALLY NEED CHANGING . . . . . . . . . . . . . . 123
4.3 FUEL, COOLANT AND LUBRICANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
4.3.1 HOMOLOGATED HEES SYNTHETIC BIODEGRADABLE LUBRICANTS . . . . . . . . . . . . . . 126
4.4 DRIVING TORQUES FOR SCREWS AND NUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
4.4.1 STANDARD DRIVING TORQUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
4.4.2 SPECIFIC DRIVING TORQUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
4.5 LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
4.5.1 LUBRICATION DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
4.6 PERIODICAL CHANGE OF THE COMPONENTS THAT ARE CONNECTED WITH SAFETY . . . . 129
4.6.1 CRITICAL PARTS FOR SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
4.7 MAINTENANCE PLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
4.7.1 WHEN REQUIRED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
4.7.1.a WASHING THE COOLING CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
4.7.1.b DRAINING THE FUEL TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
4.7.1.c CHECKING THE ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
4.7.1.d CHECKING THE STEEL TRACK TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
4.7.1.e CHECKING THE RUBBER TRACKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
4.7.1.f CHECKING THE RUBBER TRACK TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . 142
4.7.1.g CHANGING THE RUBBER TRACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
4.7.1.h CHECKING, CLEANING OR CHANGING THE AIR CLEANER CARTRIDGE . . 146
4.7.2 MAINTENANCE INTERVALS IN CASE OF USE OF THE
DEMOLITION HAMMER (BREAKER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
4.7.2.a CHANGING THE HYDRAULIC OIL FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
4.7.2.b CHANGING THE HYDRAULIC OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
4.7.3 CHECKS BEFORE STARTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
4.7.3.a VARIOUS CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
4.7.3.b CHECKING THE COOLANT LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
4.7.3.c CHECKING THE FUEL LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
4.7.3.d CHECKING THE ENGINE OIL LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
4.7.3.e CHECKING THE OIL LEVEL IN THE HYDRAULIC CIRCUIT . . . . . . . . . . . . . . . 150
4.7.3.f CHECKING THE AIR CLEANER CLOGGING INDICATOR . . . . . . . . . . . . . . . . 151
4.7.3.g CHECKING THE FUEL FILTER FOR SEDIMENT AND WATER . . . . . . . . . . . . 151
4.7.4 MAINTENANCE AFTER THE FIRST 50 HOURS OF OPERATION
(Only for machines in which the synthetic biodegradable oil type HEES is used) . . . . . . . . . 152
4.7.5 MAINTENANCE EVERY 100 HOURS OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
4.7.5.a LUBRICATING THE JOINTS AND THE BALL-BEARING RING . . . . . . . . . . . . . . 153

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TECHNICAL SPECIFICATIONS
4.7.6 MAINTENANCE AFTER THE FIRST 250 HOURS OF OPERATION . . . . . . . . . . . . . . . . . . 155
4.7.7 MAINTENANCE EVERY 250 HOURS OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
4.7.7.a ADJUSTING THE FAN BELT TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
4.7.7.b CHECKING THE BATTERY ELECTROLYTE LEVEL . . . . . . . . . . . . . . . . . . . . . 156
4.7.7.c CHECKING THE OIL LEVEL IN THE TRAVEL REDUCTION GEARS . . . . . . . . 156
4.7.7.d CHANGING THE HYDRAULIC SYSTEM OIL FILTER . . . . . . . . . . . . . . . . . . . . . 157
4.7.7.e CHANGING THE ENGINE OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
4.7.8 MAINTENANCE AFTER THE FIRST 500 HOURS OF OPERATION
(Only for machines in which the synthetic biodegradable oil type HEES is used) . . . . . . . . . 159
4.7.9 MAINTENANCE EVERY 500 HOURS OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
4.7.9.a CHANGING THE ENGINE OIL FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
4.7.9.b CHANGING THE FUEL FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
4.7.9.c CHANGING THE FUEL PUMP PRECLEANER . . . . . . . . . . . . . . . . . . . . . . . . . . 161
4.7.9.d CLEANING THE OUTSIDE OF THE RADIATORS . . . . . . . . . . . . . . . . . . . . . . . 162
4.7.9.e DRAINING THE HYDRAULIC OIL TANK (Only for machines in which the
synthetic biodegradable oil type HEES is used) . . . . . . . . . . . . . . . . . . . . . . . . . . 163
4.7.10 MAINTENANCE EVERY 1000 HOURS OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 164
4.7.10.a CHANGING THE OIL IN THE TRAVEL REDUCTION GEARS . . . . . . . . . . . . . . 164
4.7.11 MAINTENANCE EVERY 2000 HOURS OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 165
4.7.11.a CHANGING THE HYDRAULIC SYSTEM OIL AND CLEANING THE SUCTION
FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
4.7.11.b CHANGING THE COOLANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
4.7.11.c CHECKING AND ADJUSTING THE ENGINE VALVE CLEARANCE . . . . . . . . . 169
4.7.11.d CHECKING THE ALTERNATOR AND THE STARTER . . . . . . . . . . . . . . . . . . . . 169
5.1 TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
5.1.1 STANDARD OVERALL DIMENSIONS (for model PC20R only) . . . . . . . . . . . . . . . . . . . . . . 172
5.1.2 TECHNICAL CHARACTERISTICS PC20R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
5.1.3 STANDARD OVERALL DIMENSIONS (for model PC27R only) . . . . . . . . . . . . . . . . . . . . . . 174
5.1.4 TECHNICAL CHARACTERISTICS PC27R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
5.1.5 LIFTING CAPACITY WITH CAB (for model PC20R only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
5.1.6 LIFTING CAPACITY WITH CANOPY (for model PC20R only) . . . . . . . . . . . . . . . . . . . . . . . . 177
5.1.7 LIFTING CAPACITY WITH CAB (for model PC27R only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
5.1.8 LIFTING CAPACITY WITH CANOPY (for model PC27R only) . . . . . . . . . . . . . . . . . . . . . . . 179

TABLE OF CONTENTS
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Page
AUTHORIZED OPTIONAL EQUIPMENT
6.1 AUTHORIZED OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
6.1.1 PRECAUTIONS REGARDING SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
6.1.2 PRECAUTIONS REGARDING THE INSTALLATION OF EQUIPMENT . . . . . . . . . . . . . . . . 183
6.1.3 CHARACTERISTICS OF THE OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
6.2 ARRANGEMENT FOR THE INSTALLATION OF THE DEMOLITION HAMMER (BREAKER) . . . . 185
6.2.1 DESCRIPTION AND CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
6.2.2 USE OF THE DEMOLITION HAMMER AND RULES TO BE OBSERVED . . . . . . . . . . . . . . 185
6.2.3 INSTALLING AND REMOVING THE DEMOLITION HAMMER . . . . . . . . . . . . . . . . . . . . . . . 189
6.2.3.1 INSTALLING THE HAMMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
6.2.3.2 REMOVING THE HAMMER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
6.2.4 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
6.3 ARRANGEMENT FOR THE OPERATION OF OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . 191
6.3.1 SELECTION VALVE (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
6.3.2 CONTROL PEDAL (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
6.3.3 ASSEMBLYING AND CONNECTING THE EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
6.3.4 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

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