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.
FOREWORD
CAUTION
1.1FOREWORD
• This manual has been carr ied out by Komatsu Utility in o rder to supply thei r customers with al l the necessa ry
information on the mac hine and th e safety regulatio ns rela ted to it, t ogether with the use an d maintena nce instructions tha t enable the o perator to exploit the capaci ty of the machine w ith optimal results a nd to keep the
machine efficient over time.
• The operation manual, together with the spare parts catalogue, is an integral par t of the mac hin e 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 comp artment be hind the seat, where also the
ownership documents and the logbook are usually kept (see “3.5.10 TECHNICAL DOCUMENTATION”).
• 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 co nten ts c ar ef ull y m or e th an o nce, in s uc h a way as to clear l y un der st an d wha t
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 upon request.
Komatsu Utility machines are constantly improved in order to increase their efficiency and reliability; this manual sums up all the infor mation regarding the m ost recent techniques ap plied at the moment in which the machine is marketed.
For any further and/or updated information, contact your Komatsu Utility Dealer.
• For the various maintenance phases it is advisable to consult the hour meter and in particular the maintenance
plan set on the electron ic unit of th e mach ine frequentl y. The display of the maintenance plan can be obtai ned
by means of an appropriate scre en po si tio ned on the uppe r pa rt of the front dashboard. In any case, the mai ntenance plan can be als o consulted on the r elevant manual provided. Keep to the various maintenance i ntervals indicated on the screen and on the use and maintenance manual.
• Over the years Komatsu Utility Dealers have gathered considerable experience in customer service.
If more information is needed , do n ot hes itate to cont act your Komatsu Utility Dealer : he always knows how to
get the best perform ance from the m achine, he ca n su ggest the u se of the e quipm ent tha t is most suit able for
specific needs and can provide the technical assistance necessary for any change that may be required to conform the machine to the safety standards and traffic rules.
Further more, Komatsu Utility Dealers also ens ure their assistance for the suppl y of Komatsu Utility genuine
spare parts, which alone guarantee safety and interchangeability.
• The table included in th is m anual mus t be filled i n wit h t he ma chine data, which a re th e data that must al ways
be indicated to the Dealer when requiring assistance and ordering spare parts.
• 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 main tenance operat ions
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 describ ed herein, the operator
shall be responsible for his own safety and for the safety of any other person involved.
1
INFORMATION ON SAFETY
IMPORTANT
☞
1.2INFORMATION ON SAFETY
Many accidents are caused by insuffi cient knowledge of and failure to comply with th e safety regulations prescribed for the maintenance operations that must be performed on the machine.
In order to avoid accidents, before star ting work and before carr ying 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.
DANGER
CAUTION
Komatsu Utility cannot reasonably predict every circumstance that might involve a potential hazard during the operation or maintenance of the mac hi ne; for this reason, the safety mess ag es inclu ded in thi s manual and a ppl ied
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 regarding the safety measures necessary for some procedures, contact Komatsu Utility or your local Dealer.
• 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 res ult in serious
damage to the machine.
• Th is word is used in the safety war n ings in the manua l and on t he p lates t o sig-
nal risks that may cause moderate damage or injuries.
The message can be used even to indicate th e risk of damage t o the machine
only.
• This wor d is used when precautions are indicated, which must be taken to avoid
actions that may shorten the life of the machine.
DANGER
• Before starting any maintenance operation, position the machine on firm and level ground, engage the
safety locks of the equipment and controls, stop the engine and apply the parking brake.
DANGER
• To make the information clearer, some illustrations in this manual represent the machine without safety
guards. Do not use the machine without guar ds and do not start the engine when the engine pr ot ection
casing is open, if this is not expressly prescribed for some specific maintenance operations.
2
INFORMATION ON SAFETY
DANGER
DANGER
DANGER
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.
• Before carrying out any electrical welding, disconnect the battery, the alternator and the connector of
the gearshift unit installed under the steering wheel (see “2.8.13 PRECAUTIONS CONCERNING THE
BATTERY AND THE ALTERNATOR” - “2.8.15 PRECAUTIONS CONCERNING THE GEARSHIFT”).
• Install only authorized additional equipment (see “6.1 AUTHORIZED OPTIONAL EQUIPMENT”).
• The machine can travel on roads only if provided with homologated equipment; before travelling on
roads, make sure that the equipment with which the machine is provided is homologated and that the
safety locks are correctly connected.
3
INTRODUCTION
IMPORTANT
☞
1.3INTRODUCTION
1.3.1 INTENDED USES
The Komatsu Utility BACKHOE LOADERS d escr ibed i n this manual have been desig ned and constr ucted to be
used mainly for the following functions:
• LOADER
• EXCAVA TOR
Through the installation of optional equipment, the machine can also be used for the following applications:
• HANDLING OF MATERIALS (4IN1 BUCKET - PALLET FORKS)
• SNOWPLOUGH (ANGLEDOZER BLADE - SNOWPLOUGH)
• DEMOLITION (HAND HAMMER - HAMMER ON THE BACKHOE)
• DITCH CLEANING AND DIGGING (SPECIAL BUCKETS)
1.3.2 IMPROPER OR UNAUTHORIZED USES
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 f or particular applications, contact your Komatsu Utility Dealer before carrying out the work.
• 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-
rangement 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 backhoe loaders are constr ucted exclusively for the handling, excavation and treatment of iner t
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.
• TRANSPORTATION OF PERSONS even if they are in the operator’s cab.
• TRANSPORTATION OF CONTAINERS with fluids, flammable fluids, loose material, without the approp riate
slinging equipment.
• TRANSPORTATION AND L IFTING (EVEN IF IN EXCEPTIONAL CASES) OF EQUIPMENT OR MATERIALS
THAT PROTRUDE FROM THE BUCKET OR ARE NOT SECURED TO THE BUCKET BY MEANS OF ROPES
OR CHAINS.
• USE OF THE BUCKET FOR DRIVING OR EXTRACTING PILES.
• USE OF THE MACHINE FOR TOWING DAMAGED VEHICLES ON ROADS.
• USE OF THE MACHINE FOR LIFTING DAMAGED VEHICLES.
4
INTRODUCTION
IMPORTANT
☞
1.3.3 MAIN CHARACTERISTICS
• Simple and easy operation.
• Servo-assisted steering with priority hydraulic system.
• Three steering modes that can be selected with a push button:
- Two-wheel steering
- All-wheel steering
- Crab steering
• Gearshift with elec tronic gear selection through soleno id valve actuators and t ransmission wi th hydraulic con-
verter; reversal and gear shifting with controls on a single lever.
• Loader control through a single lever ensuring also combined movements that can be modulated proportionally
and continually.
• Backhoe controls with two levers ensuring also combined movements that can be modulated proportionally and
continually.
• Complete series of instruments visible from the two operating positions (loader or backhoe).
• Separate accelerator controls for the two operating positions.
• Foot brake control.
• Easy maintenance with simplified intervals.
• Automatic engagement and disconnection of the differential locking on both axles (front and rear).
1.3.4 RUNNING-IN
Every machine is scrupulously adjusted and tested before delivery.
A new machine, however, must be used car efully for the fir st 100 hours, in order to en sure prop er runni ng-in of
the various components.
If the machine is subj ected to excessive work loa d at the beginni ng of operation, its potential yiel d and its functionality will be shortly and untimely reduced.
Every new machine must be used carefully, paying special attention to the following indications:
• After the star t, let the engine idl e 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, carr y out the following operations, in addition to thos e to be performed every 250
hours:
1 - Change the hydraulic transmission oil and filter.
2 - Change the differential unit oil (front and rear axle).
3 - Change the oil in the final reduction gears (front and rear axle).
4 - Check and adjust the engine valve clearance.
5 - Change the hydraulic circuit oil filter.
SYNTHETIC BIODEGRADABLE OIL TYPE HEES
On machines in whic h t he s y nthe tic bi ode gradable oil ty pe HEE S is us ed, the following ope rations ar e t o 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.
• When changing the oil filters (cartridges), check their innner 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 machine.
• The number of operation hours is indicated by the hour meter, while the par tial service hours for the
various maintenance operations to be carried out on the machine are stored and displayed on the electronic screen positioned on the front dashboard.
5
PRODUCT IDENTIFICATION
1.4PRODUCT IDENTIFICATION
The Komatsu Utility backhoe loader a nd its main com ponents are identifi ed by serial numbers s tamped 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.
1.4.1 MACHINE SERIAL NUMBER
The machine ser ial number is stampe d on the front par t of the
main frame, on the right side.
RWAB0070
1.4.2 MACHINE IDENTIFICATION PLATE
The Komatsu Utility backhoe loader s described in this manual
are provided with the CE mar k, which certifies th at they are in
compliance with the CE harmonized standards.
The plate with the mark is appl ied inside the operator’s cab, on
the left vertical wall of the frame, in correspondence with the
brake pedals.
RWA04680
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
MANUFACTURED BY KOMATSU UTILITY EUROPE S.p.A.
36025 NOVENTA VICENTINA (VI) ITALY
kg
kw
kg
kg
21D-98-12580
RWA34270
MODEL
SERIAL N
YEAR
TOTAL MAX WEIGHT
ENGINE POWER
MAX WEIGHT FRONT AXLE
MAX WEIGHT REAR AXLE
MANUFACTURED BY KOMATSU UTILITY EUROPE S.p.A.
36025 NOVENTA VICENTINA (VI) ITALY
kg
kw
kg
kg
6
1.4.3 ENGINE SERIAL NUMBER AND EXHAUST GAS EMISSION PLATE
The engine serial number is stam ped on the pl ate posi tioned on
the rear side of the tappet cover.
The plate regardin g the exhaust emission r egulations is applied
to the front side of the tappet cover.
PRODUCT IDENTIFICATION
RWAB0480
1.4.4 FRONT AXLE SERIAL NUMBER
The serial number of the fro nt axle is st amp ed on the plate positioned on the right side of the axle body.
1.4.5 REAR AXLE SERIAL NUMBER
The serial number o f the rear axle i s sta mped on the pl ate pos itioned on the left side of the axle body.
RWAB0620
RWAA8910
RWAA8920
7
PRODUCT IDENTIFICATION
1.4.6 TRANSMISSION SERIAL NUMBER
The transmission serial number is stamped on the plate postioned on the right side of the transmission case.
RWA02540
1.4.7 CAB SERIAL NUMBER
The cab serial number is stamped on the plate positioned on the
right center pillar.
1.4.8 CANOPY SERIAL NUMBER
(if provided)
The serial number is stam ped on the plate po sitioned inside the
canopy, on the front right part.
RWA02500
RWA18190
8
1.4.9 SERIAL NUMBERS AND DEALER’S ADDRESS
Machine n.Model
Engine n.
Front axle n.
Rear axle n.
Transmission n.
Cab n.
Canopy n.
• The safety plates must always be legible and in good conditions; for this reason, if they are dirty with dust, oil or
grease, it is necessary to clean them with a solution made of water and detergent.
Do not use fuel, petrol or solvents.
• If the plates are damaged, ask for new ones to Komatsu Utility or to your Komatsu Utility Dealer.
• In case of replacement of a component provided with a safety plate, make sure that this plate is applied also on
the new piece.
• The machine can be p rovided with other pla tes in addition to those indicated below; keep also to the instr uc-
tions given in the additional plates, in any case.
RWA26140
RWA00020
20
RWA00010
RWA00020
RWA26150
SAFETY, NOISE AND VIBRATION PLATES
RWA00030
RWA00020
RWA00150
RWA00190
RWA00020
RWA00160
RWA37700
21
SAFETY, NOISE AND VIBRATION PLATES
2.1.2 PICTOGRAMS AND RELEVANT MEANINGS
The warning and danger plates applied onto the machine are accompanied or represented by pictograms.
The personnel in charge with the operation and maintenance of the machine must know the symbols contained in
the pictograms perfectly; the following description illustrates what they look like and their respective meanings.
DANGER IN THE WORK AREA
• Do not approach or stand in the equ ipment operating radius
when the boom and the bucket are raised.
RWA00020
DO NOT OPEN THE HOOD
• Do not open or remove the hood when the engine is running.
FILLING THE HYDRAULIC SYSTEM WITH
OIL
(Only for machines in which the synthetic biod egr adable oil
type HEES is used)
O VERTURNING THE FORKS
• When the forks are overturned for use or storage, be care-
ful to the grasping points, since hands and feet may be injured and even cut.
BIO-OIL
RWA00010
RWA34380
22
RWA35830
CONSULT THE MANUAL
• Carefully read the contents of the manual before using the ma-
chine or performing maintenance operations.
HYDRAULIC OIL TOPPING UP
SAFETY, NOISE AND VIBRATION PLATES
RWA00030
REFUELLING
ENGINE LUBRICATING OIL FILTER
FUEL FILTER
RWA00050
D
RWA00040
RWA00080
D
ENGINE AIR SUCTION FILTER
RWA00060
RWA00090
23
SAFETY, NOISE AND VIBRATION PLATES
ENGINE COOLANT
ENGINE COOLANT PRESSURE
HYDRAULIC OIL LEVEL
RWA00130
RWA00110
HYDRAULIC OIL FILTER
ELECTRIC OUTLET
TRANSMISSION OIL LEVEL
RWA00120
RWA00100
RWA00070
12 V
HYDRAULIC TRANSMISSION OIL FILTER
24
RWA00180
RWA00170
ANCHORAGE POINT
EMERGENCY EXIT
BOOM LOCK
SAFETY, NOISE AND VIBRATION PLATES
RWA00200
RWA00190
SWING LOCK
BRAKE OIL
DO NOT LIFT MORE THAN 1000 kg
RWA00160
RWA00150
RWA00140
> 1000 Kg
RWA00210
25
SAFETY, NOISE AND VIBRATION PLATES
2.1.3 POSITION OF THE NOISE PLATES ON MACHINES WITH CAB
• The noise plates must always be legible and in good conditions; for this reason, if they are dirty with dust, oil or
grease, it is necessary to clean them with a solution made of water and detergent.
Do not use fuel, petrol or solvents.
• If the plates are damaged, ask for new ones to Komatsu Utility or to your Komatsu Utility Dealer.
• In case of replacement of a component provided with a noise plate, make sure that this plate is applied also on
the new piece.
ISO6396
NOISE OUTSIDE THE CAB
• This value indicates the noise level outside the machine and
refers to the noise perceived by persons in the vicinity of th e
work area.
NOISE INSIDE THE CAB
• This value indicates the maximum noise level perceived by the
operator’s ears inside the cab when this is completely closed.
2000/14/EC
2000/14/EC
RWA37710
RWA37720
26
ISO6396
RWA37730
SAFETY, NOISE AND VIBRATION PLATES
2.1.4 VIBRATIONS TO WHICH THE OPERATOR IS SUBJECTED
• According to the res ults of the test s carried out t o determine the vibrations transmi tted to the operator by the
machine, the upper limbs are subjected to vibrations lower than 2.5 m/sq.sec., while the seated part of the body
is subject to vibrations lower than 0.5 m/sq.sec.
27
GENERAL PRECAUTIONS
2.2 GENERAL PRECAUTIONS
2.2.1 GENERAL SAFETY RULES
• Only trained and authorized personnel can use the machine and perform maintenance operations.
• Follow all the safety rules, precautions and instructions when using the machine or performing maintenance op-
erations.
• When working with other op erators or w hen the wor k site is often occup ied by other op erators, make sure that
everyone knows and understands all t he signals described above and, in any cas e, that everyone works in
such a way as to be able to see the machine and to be visible to the operator.
2.2.2 SAFETY DEVICES AND GUARDS
• Make sure that all the g uards and covers are in the correct posit ion. Have guards and covers chang ed or re-
paired if damaged. Neither use the machine without guards, nor rem ove the guards when the engine is running.
• Always use the proper safety devices to lock the machine when parking and fasten the safety belt.
• For the safety devices, see “3.1 SAFETY LOCKS”.
• For the safety belt, see “3.5.7 SAFETY BELT”.
• Do not remove the safety devices and always keep them in good operating conditions.
• Any improper use of the safety devices may result in serious injuries or even death.
2.2.3 CLOTHING AND PERSONAL PRO-
TECTION ITEMS
• Do not wear large or loos e clothes, ri ngs and watches and d o
not approach the machi ne with lo ose long h air, since they can
get entagled in the moving parts of the machine and cause serious injuries or damage.
Avoid also wearing clothes dir ty with oi l or fuel, since they are
flammable.
• Wear a hard hat, goggles, safety shoes, mask, gloves and
headphones when ope rating the m achine or pe rforming maintenance operations.
• Always wear safety goggles, a hard hat and heavy gloves if
your job involves scattering metal chips or minute materials;
these precautions are particularly useful when driving the
equipment connection pi ns with a hammer and when blowing
compressed air into the air filter and the radiator to clean them.
During these opera tions, make also sure that no one i s sta nding or working near the machine without the necessary protections.
• When working for 8 hours with a noise level exceeding 90
dBA, it is necessar y to use headphones or ear plu gs and be
particularly careful, especially at the end of the work shift.
28
RWA00960
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