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
11
FOREWORDFOREWORD
FOREWORD0.
This manual provides rules and guidelines which will help you use this machine safely and effectively. The precautions in this manual must be followed at all times when performing operation and maintenance. Most acciden ts
are caused by the failure to follow fundamental safety rules for the operation and maintenance of machi nes. Accidents can be prevented by knowing beforehand conditio ns that may cause a haz ard when performing op eration
and maintenance.
WARNING
Operators and maintenance personnel must always do as follows before beginning operation or maintenance.
Always be sure to read and understand this manual thoroughly before performing operation and
maintenance.
Read the safety messages given in this manual and the safety labels affixed to the machine thor-
oughly and be sure that you understand them fully.
Keep this manual at the storage location for the Operation and M aintenance Manual given below, and
have all personnel read it periodically.
If this manual has been lost or has become dirty and can not be read, request a replacement manual
immediately from Komatsu or your Komatsu distributor.
If you sell the machine, be sure to give this manual to the new owners together with the machine.
Komatsu delivers machines that comply with all applicable regulations and standards of the country to
which it has been shipped. If this machine has been purchased in another country or purchased from
someone in another country, it may lack certain safety devices and specifications that are necessary for
use in your country. If there is any question about whether your product complies with the applicable
standards and regulations of your country, consult Komatsu or your Komatsu distributor before operating the machine.
Location to Keep Operation & Maintenance Manual
In Door Pocket Inside of Cab Door
1-2
FOREWORDSAFETY INFORMATION
SAFETY INFORMATION0.
To enable you to use this machine safely, safety precautions and labels are given in this manual and affixed to the
machine to give explanations of situations involving potential hazards and of the methods of avoiding such situations.
Signal words
The following signal words are used to inform you that there is a potential hazardous situation that may lead to personal injury or damage.
In this manual and on machine labels, the following signal words are used to express the potential level of hazard.
DANGER
WARNING
CAUTION
Example of safety message using signal word
Indicates an imminently hazardous situation which, if not avoided, will result in death
or serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death
or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. This word is used also to alert against unsafe practices that may
cause property damage.
WARNING
When standing up from the operator's seat, always place the safety lock lever in the LOCK position.
If you accidentally touch the control levers when they are not locked, this may cause a serious injury or
death.
Other signal words
In addition to the above, the following signal words are used to indicate precaution s that shou ld be followed to protect the machine or to give information that is useful to know.
NOTICE
REMARKS
This word is used for precautions that must be taken to avoid actions which could shorten
the life of the machine.
This word is used for information that is useful to know.
1-3
SAFETY INFORMATIONFOREWORD
Safety labels
Safety labels are affixed to the machine to inform the operator or maintenance worker on the spot when carrying
out operation or maintenance of the machine that may involve hazard.
This machine uses “Safety labels using words“ and “Safety labels using pictograms“ to indicate safety pr ocedur es.
Example of safety label using words
Part No.
Safety labels using pictogram
Safety pictograms use a picture to expre ss a level of hazardous condition equivalent to the signal word. These safety pictograms use pictures in order to let the operator or maintenance
worker understand the level and type of h azardous condition at
all times. Safety pictograms show the type of hazardous condition at the top or left side, and the method of avoiding the hazardous condition at the bottom or right side. In addition, the
type of hazardous condition is displayed inside a triangle and
the method of avoiding the hazardous condition is shown
inside a circle.
Part No
Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintena nce.
Therefore, the safety messages in this manual and on the machine may not include all po ssible safety precautions.
If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsibility to take the necessary steps to ensure safety.
In no event should you engage in prohibited uses or actions described in this manual.
The explanations, values, and illustrations in this manual were prepared based on the latest information available
at that time. Continuing improvements in the design of this machine can lead to changes in detail which may not
be reflected in this manual. Consult Komatsu or your Komatsu distributor for the latest available information of
your machine or for questions regarding information in this manual.
The numbers in circles in the illustrations correspond to the numbers in ( ) in the text. (For example: 1 -> (1))
1-4
FOREWORDSAFETY INFORMATION
Noise emission levels0.
Two labels ind icating the machine noise level a re affixed on the
machine.
Sound pressure level at the operator's station, measured
according to ISO6396 (Dynamic test method, simulated
working cycle)
Sound power level emitted by the machine, measured
according to ISO 6395 (Dynamic test method, simulated
working cycle). This is the guaranteed value as specified in
European directive 2000/14/EC.
Vibration levels0.
When used for its intended purpose, levels of vibration for the earth-moving machine transmitted from the operator’s seat are lower than or equal to the tested vibrations for the relative machinery class in compliance with ISO
7096.
If equipped with air suspension seat
The actual acceleration value for the hands and arms is less than or equal to 2.5 m/s². The actual acceleratio n
value for the body is less than or equal to 0.5 m/s².
If equipped with mechanical suspension seat
The actual acceleration value for the hands and arms is less than or equal to 2.5 m/s². The actual acceleratio n
value for the body is 0.52 m/s².
These values were determined using a representative machine and measured during the typical operating condition indicated below according to the measurement procedures that are defined in the standards ISO 2631/1 and
ISO 5349.
1-5
SAFETY INFORMATIONFOREWORD
Operating condition:
(WHEEL LOADER:) V-shape loading
(HYDRAULIC EXCAVATORS:) Excavating (Digging-loading-rotating-unloading-rotating)
(TRACTOR DOZER:) Dozing and spreading material through forward/reversing motion
(Rigid/Articulate dumper:) Work cycle (including waiting, travelling, loading, travelling with load, unloading, and
travelling without load)
Guide to Reduce Vibration Levels on Machine
The following guides can help an operator of this machine to reduce the whole body vibration levels:
1. Use the correct equipment and attachments.
2. Maintain the machine according to this manual
Tire pressures (for wheeled machines), tension of crawler (for crawler machines)Brake and steering systemsControls, hydraulic system and linkages
3. Keep the terrain where the machine is working and traveling in good condition
Remove any large rocks or obstaclesFill any ditches and holesSite manager should provide machine operators with machine and schedule time to maintain terrain condi-
tions
4. Use a seat that meets ISO 7096 and keep the seat maintained and adjusted
Adjust the seat and suspension for the weight and size of the operatorWear seat beltInspect and maintain the seat suspension and adju stment mechanisms
5. Steer, brake, accelerate, shift gears (for wheeled machines), and move the attachment levers and pedals
slowly so that the machine moves smoothly
6. Adjust the machine speed and travel path to minimize the vibration level
When pushing with bucket or blade, avoid sudden loading; load gradually Drive around obstacles and rough terrain conditions Slow down when it is necessary to go over rough terrainMake the curve radius of traveling path as large as possibleTravel at low speed when traveling around sharp curves
7. Minimize vibrations for long work cycle or long distance traveling
Reduce speed to prevent bounceTransport machines long distances between worksites
8. The following guidelines can be effective to minimize risks of low back pain
Operate the machine only when you are in good health. Provide breaks to reduce long periods of sitting in the same postureDo not jump down from the cab or machineDo not repeatedly handle and lift loads
1-6
FOREWORDINTRODUCTION
INTRODUCTION0.
This Komatsu machine is designed to be used mainly for the following work:
DozingCutting into hard or frozen ground or ditchingFelling trees, removing stumpsPushingRipping
For further details, see “WORK POSSIBLE USING BULLDOZER ( 3-92 )“.
FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE0.
Front
Left
Operator’s seat
Rear
In this manual, the terms front, rear, left, and right refer to the travel direction as seen from the operator's seat
when the operator's seat is facing the front and the sprocket is at the rear of the machine.
Right
Sprocket
1-7
NECESSARY INFORMATIONFOREWORD
NECESSARY INFORMATION0.
When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following
items.
MACHINE SERIAL NO. PLATE AND POSITION0.
Under the front of the console box on the right side of the operator's seat.
ENGINE SERIAL NO. PLATE AND POSITION0.
This is at the rear of the starting motor on the rights side of the engine.
(The EMISSION CONTROL INFORMATION LABEL is at the front surface of the engine oil filler on the left side of
the engine.)
EPA: Environmental Protection Agency, U.S.A.
1-8
FOREWORDNECESSARY INFORMATION
BLADE SERIAL NO. PLATE POSITION0.
This is located at the upper right of blade back surface.
RIPPER SERIAL NO. PLATE POSITION0.
This is located at the left side surface of ripper beam.
ROPS, FOPS NO. PLATE POSITION0.
This is located at the top left.
FOPS
ROPS
POSITION OF SERVICE METER0.
On top of the machine monitor
1-9
NECESSARY INFORMATIONFOREWORD
TABLE OF ENTER SERIAL NO. AND DISTRIBUTOR0.
Machine serial No.
Engine serial No.
Product Identification Number
Manufacturers name:
Address:
Distributor
Address
Phone
Service personnel for your
machine:
KOMATSU LTD.
3-6 Akasaka
Minato-ku, 101 Tokyo
Japan
GENERAL PRECAUTIONS .................................................................................................................................2-9
PRECAUTIONS FOR OPERATION................................................................................................................... 2-16
PRECAUTIONS FOR MAINTENANCE.............................................................................................................. 2-23
OPERATION
GENERAL VIEW .................................................................................................................................................. 3-2
1-12
CONTENTS
GENERAL VIEW OF MACHINE............................................................ ... ... ... .... ... ... .................................. 3-2
GENERAL VIEW OF CONTROLS AND GAUGES..................................................................................... 3-3
EXPLANATION OF COMPONENTS.................................................................................................................... 3-5
FRONT PANEL........................................................................................................................................... 3-5
DOOR POCKET ....................................................................................................................................... 3-41
However, the more the digging angle is changed, the more the chang e become s in the am oun t of tilt on th e
left and right sides provided by the tilt cylinder. .. ... ... ... .... ... ... ... .... .......................................... ... ...............3-95
GUIDES TO MAINTENANCE............................................................................................................................... 4-2
OUTLINES OF SERVICE..................................................................................................................................... 4-5
OUTLINE OF ELECTRIC SYSTEM............................................................................................................ 4-7
WEAR PARTS LIST............................................................................................................................................. 4-8
WEAR PARTS LIST.................................................................................................................................... 4-8
1-15
CONTENTS
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE....................... 4-9
PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS ...........................................................4-9
STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS.....................................................................4-13
INTIAL 250 HOURS SERVICE(ONLY AFTER THE FIRST 250 HOURS) ...................................... 4-17
WHEN REQUIRED.......................................................................................................................... 4-17
CHECK BEFORE STARTING .........................................................................................................4-17
EVERY 250 HOURS SERVICE....................................................................................................... 4-17
EVERY 500 HOURS SERVICE....................................................................................................... 4-17
EVERY 1000 HOURS SERVICE............................ .........................................................................4-18
EVERY 2000 HOURS SERVICE............................ .........................................................................4-18
EVERY 4000 HOURS SERVICE............................ .........................................................................4-18
EVERY 8000 HOURS SERVICE............................ .........................................................................4-18
SERVICE PROCEDURE ....................................................................................................................................4-19
INITIAL 250 HOURS SERVICE(ONLY AFTER THE FIRST 250 HOURS)...............................................4-19
WHEN REQUIRED............................................................................. ......................................................4-19
GENERAL PRECAURIONS.................................................................................................................................6-2
PRECAUTIONS RELATED TO SAFETY ...................................................................................................6-2
SELECTION OF TRACK SHOE........................................................................................................................... 6-3
SELECTION OF TRACK SHOES...............................................................................................................6-3
PROCEDURE FOR SELECTING RIPPER POINT...............................................................................................6-4
PROCEDURE FOR SELECTING RIPPER POINT..................................................................................... 6-4
1-16
CONTENTS
CAP WITH LOCK, HANDLING............................................................................................................................ 6-5
METHOD OF OPENING AND CLOSING CAP WITH LOCK...................................................................... 6-5
INDEX
COLOPHON
1-17
CONTENTS
1-18
SAFETY
22
WARNING
Please be sure that you fully underst an d this manual an d the
precautions discribed in this manual and the safety labels
on the machine. When operating or servicing the machine,
always follow these precaustions strictly.
If Abnormalities Are Found.............................. .... ... ... ... ... .... ... ... ... .... ..............................................................2-9
Clothing and Personal Protective Items......................................................................................................... 2-9
Fire Extinguisher and First Aid Kit..................................................................................................................2-9
Mounting and Dismounting .......................................................................................................................... 2-11
No People on Attachments .......................................................................................................................... 2-11
Prevention of Burns...................................................................................................................................... 2-12
Fire Prevention.............................................................................................................................................2-12
Action If Fire Occurs..................................................................................................................................... 2-13
Pecautions for ROPS...................................................................................................................................2-13
Safety at Worksite........................................................................................................................................ 2-14
Working on Loose Ground........................................... ... .... ... ... ... .......................................... ......................2-14
Do Not Go Close to High-Voltage Cables....................................................................................................2-14
Ensure Good Visivility..................................................................................................................................2-15
Ventilation for Enclosed Areas..................................................................................................................... 2-15
Checking Signalman's Signals and Signs.................................................................................................... 2-15
Be Careful About Asbestos Dust..................................................................................................................2-15
Precautions for Operation ................................................................................................................................... 2-16
Before Starting Engine................................................................................................................................. 2-16
Checks Before Starting Engine.............................................................................................................2-16
Traveling on Slopes .............................................................................................................................. 2-18
When Towing........................................................................................................................................2-22
Precautions for Maintenance ..............................................................................................................................2-23
Work Under the Machine ............................................................................................................................. 2-26
Maintenance for Air Conditioner .................................................................................................................. 2-28
Periodic Replacement of Safety Critical Parts ............................................................................................. 2-28
2-3
SAFETY LABELSSAFETY
SAFETY LABELS0.
The following warning signes and safety labels are used on this machine.
Be sure that you fully understand the correct position and content of labels.To ensure that the content of labels can be read properly, be sure that they are in the correct place and always
keep them clean. When cleaning them, do not use organic solvents or gasoline. These may cause the lab els to
peel off.
There are also other labels in addition to the warning signes and safety labels. Han dle those labels in the same
way.
If the labels are damaged, lost, or cannot be read properly, replace them with new ones. For details of the part
numbers for the labels, see this manual or the actual label, and place an order with Komatsu distributor.
POSITIONS OF SAFETY PICTOGRAMS0.
2-4
SAFETYSAFETY LABELS
22
SAFETY LABELS0.
(1) Precautions for operation, inspection and
maintenance (09651-A0641)
Warning!
Read manual before operation, maintaince, disassembly,
assembly and transportation.
(2) Precautions when traveling in reverse
(09802-13000)
Warning
To prevent SEVERE INJURY or DEATH, do the following
before moving machine or its attachments:
Honk horn to alert people nearby.Be sure no one is on or near the machine.Use spotter if view is obstructed.
Follow above even if the machine is equipped with back-up
alarm and mirrors.
(3) Precautions for leaving operator's seat
(09654-B0641)
32
To prevent SEVERE INJURY or
DEATH, do the following before
moving machine or its attachments
. Honk horn to alert people
nearby.
. Be sure no one is on or near
the machine.
. Use spotter if view is ob-
structed.
Follow above even if the
machine is equipped with
back-up alarm and mirrors.
09802-13000
Sign indicates a hazard of unexpected moving of stopped
machine.
Lower working device to ground, move safety lever to lock
position and take engine key with you before leaving
machine.
2-5
SAFETY LABELSSAFETY
(4) Precautions for high-temperature cooling water
(09653-A0481)
Never remove the cap when the engine is at operating
(High) temperature. Stream or high temperature oil blowing
up from the radiator or hydraulic tank, will cause personal
injury and or burns.
Never remove the radiator or hydraulic tank oil filler when
cooling water or hydraulic oil is at high temperatures.
5. Precautions when adjusting track tension
(09657-A0881)
Safety label is attached on the back side of the inspection
cover of the track frame
Plug coming from track shoe tension adjustment device
causing injury.
Read the operation and maintenance manual and carrying
out the correct method when looseing track tension.
(6) Precautions for handling electric wires
(09808-A0881)
There is the hazard to electric shock when handling electric
wires.
Read the operation and maintenance manual and carrying
out the correct method when handling.
(7) Caution for engine running (09667-A0481)
Sign indicates a hazard of rotating parts, such as belt.Turn off before inspection and maintenance.
2-6
SAFETYSAFETY LABELS
(8) Precautions for handling accumulator
(09659-A057B)
There is the hazard of explotion causing injury.Do not disassemble the accumulator, make holes in it, weld
it, cut it, hit it, roll it or bring it near flame.
(9) Caution for approach when machine moving
(09806-B1683)
Sign indicates a hazard of being run over by moving equip-
ment.
Keep a safe distance from equipment when it is moving.
(10) ROPS (09620-B2000)
1
4
ROPS CERTIFICATION
This protective structure complies with the standard provided that us properly equipped on the machine which
mass is less than the specified maximum mass.
1. MODEL3. FOPS LEVEL No.5. MAX. MASS kg (Lb)
2. MACHINE MODEL4. SERIAL NO.
WARNING
If some modification is applied to the ROPS. It might not enough strength and might not be complied with the
standard. Consult Komatsu Distributor before altering.
ROPS may provide less protection if it has been structurally damaged or involved roll-over. Consult Komatsu
Distributor in that case.
Always wear seat belt when moving.
2
5
3
2-7
SAFETY LABELSSAFETY
(11) FOPS (09620-C2000)
1
2
3
4
FOPS CERTIFICATION
This protective structure was provided to comply with the following standard.
1. MODEL2. MACHINE MODEL
3. SERIAL NO.4. FOPS LEVEL No.
If some modification is applied to the FOBS. It might not enough strength and might not be complied with the
standard. Consult Komatsu Distributor before altering.
FOBS may provide less protection if it has been structurally damaged or involved roll-over. Consult Komatsu
Distributor in that case.
Always wear seat belt when moving.
(12) Precaution for avoiding falling down (09805-C0881)
Sign indicates a hazard of fallingDo not stand on this place here
(13) Jump start prohibited (09842-A0481)
Start the engine only after sitting down in the operator’s
seat.
Do not attempt to start the engine by short-circuiting the
engine starting circuit. Such an act may cause a serious
bodily injury or fire.
2-8
SAFETYGENERAL PRECAUTIONS
GENERAL PRECAUTIONS0.
SAFETY RULES0.
Only trained and authorized personnel can operate and maintain the machine.Follow all safety rules, precautions and instructions when operating or performing maintenance on the
machine.
If you are under the influence of alcohol or medication, your ability to safely operate or repair your machine may
be severly impaired putting yourself and everyone else on your jobsite in danger.
When working with another operator or with a person on worksite traffic duty, be sure that all personnel under-
stand all hand signals that are to be used.
IF ABNORMALITIES ARE FOUND0.
If you find any abnormality in the machine during operation or maintenance (noise, vibration, smell, incorrect
gauges, smoke, oil leakage, etc., or any abnormal display on the warning devices or monitor ), rep ort to the pe rson
in charge and have the necessary action taken. Do not operate the machine until the abnormality has been corrected.
CLOTHING AND PERSONAL PROTECTIVE ITEMS0.
Do not wear loose clothing and accessories. There is a hazard that they may catch on control levers or other
protruding parts.
If you have long hair and it hangs out from your hard hat,
there is a hazard that it may get caugh t up in the machin e,
so tie your hair up and be careful not to let it get caught.
Always wear a hard hat and safety shoes. If the nature of
the work requires it, wear safety glasses, mask, gloves, ear
plugs, and safety belt when operating or maintaining the
machine.
Check that all protective equipment functions properly
before using it.
FIRE EXTINGUISHER AND FIRST AID KIT0.
Always follow the precautions below to prepare for action if any injury or fire should occur.
Be sure that fire extinguishers have been provide d and rea d
the labels to ensure that you know how to use them in
emergencies.
Carry out periodic inspection and maintenance to ensure
that the fire extinguisher can always be used.
Provide a first aid kit at the storage point. Carry out p eriodic
checks and add to the contents if necessary.
SAFETY FEATURES0.
Be sure that all guards and covers are in their proper position. Have guards and cover s repaired immediately if
they are damaged.
Understand the method of use of safety features and use them properly.Never remove any safety features. Always keep them in good operating condition.
KEEP MACHINE CLEAN0.
If water gets into the electrical system, there is a hazard that it will cause malfunctions or misoperation. Do not
use water or steam to wash the electrical system (sensors, connectors).
2-9
GENERAL PRECAUTIONSSAFETY
If inspection and maintenance is carried out when the
machine is still dirty with mud or oil, there is a hazard that
you will slip and fall, or that dirt or mud will get into your
eyes. Always keep the machine clean.
INSIDE OPERATOR'S COMPARTMENT0.
When entering the operator's compartment, always remove all mud and oil from the soles of your shoes.
If you operate the pedal with mud or oil affixed to your shoes, your foot may slip and this may cause a serious
accident.
Do not leave parts or tools lying around the operator's compartment.Do not stick suction pads to the window glass. Suction pads act as a lens and may cause fire.Do not use cellular telephones inside the operator's compartment when driving or operating the machine.Never bring any dangerous objects such as flammable or explosive items into the operator's compartment.
ALWAYS APPLY LOCK WHEN LEAVING OPERATOR'S SEAT0.
Before standing up from the operator's seat, lower the work
equipment completely to the ground, set safety lock lever
and parking lever securely to the LOCK position, then stop
the engine.
If you accidentally touch the levers when they are not
locked, there is a hazard that the machine may suddenly
move and cause serious injury or property damage.
Free
Lock
When leaving the machine, always lower the work equip-
ment completely to the ground, set safety lock lever and
Parking lever securely to the LOCK position, then stop the
engine. Use the key to lock all the equipment. Always
remove the key, take it with you, and keep it in the specified
place.
Free
Lock
2-10
Loading...
+ 210 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.