Komatsu PC340LC-7K, PC340NLC-7K Service Manual
UEAM001505
Operation &
Maintenance Manual
PC340LC
PC340NLC
HYDRAULIC EXCAVATOR
SERIAL NUMBER
PC340LC-7K - K40001
PC340NLC-7K - K40001
and up
and up
-7K
-7K
WARNING
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 person el who
will come into contact with the machine.
FOREWORD
11
1
FOREWORD FOREWORD
FOREWORD
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 while operating or performing maintenance . Most accidents are
caused by the failure to follow fundamental safety rules for the operation and mainten ance of mach ines. Accidents
can be prevented by knowing beforehand conditions that may cause a hazard when performing operation 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 in the storage location for the Operation and M aintenance Manual given be low, 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.
Storage loca tion for the Operation and Maintenance Manual:
Storage box on the left side of the operator's seat.
2
FOREWORD SAFETY INFORMATION
SAFETY INFORMATION
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 potentially 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
To avoid hitting unlocked operation levers, lower equipment to ground and move SAFETY LOCK LEVER
(located near seat) to LOCK position before getting up from the operator's seat.
Sudden and unwanted machine movement can cause 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 ta ken to avoid actions which could shorten the
life of the machine.
This word is used for information that is useful to know.
3
SAFETY INFORMATION FOREWORD
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 pictograms" to indicate safety procedures.
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 o r your Komat su 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))
4
FOREWORD SAFETY INFORMATION
NOISE
● Sound pressure level at the operator’s station, measured
according to ISO6396 (Dynamic test method,simulated
working cycle).
● Sound power level emmited. This is the guaranteed value
as specified in the European directive 2000/14/EC
VIBRATION
The weighted root mean square acceleration value to which
the operator’s arms are subjected does not exceed 2.5 m/s².
The weighted root mean square acceleration value to which
the operator’s body is subjected does not exceed 0.5 m/s².
These results were obtained by accelerometers during trench digging.
5
INTRODUCTION FOREWORD
INTRODUCTION
This Komatsu HYDRAULIC EXCAVATOR is designed to be used mainly for the following works:
● Digging work
● Leveling work
● Ditching work
● Loading work
● Demolition work
See the section "RECOMMENDED APPLICATIONS (PAGE 164)" for further details.
DIRECTIONS OF MACHINE
FRONT
Operator’s seat
LEFT
RIGHT
Sprocket
REAR
In this manual, the terms front, rear, left, and right refer to the travel direction as seen from the operator's cab when
the operator's cab is facing the front and the sprocket is at the rear of the machine.
6
FOREWORD PRODUCT INFORMATION
9JH02598A
PRODUCT INFORMATION
When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following
items.
MACHINE SERIAL NUMBER PLATE AND ITS LOCATION
On the bottom right of the operator's cab
PRODUCT IDENTIFICATION NUMBER
A
ENGINE SERIAL NUMBER PLATE AND ITS LOCATION
On the top of the No.1 cylinder head cover (The EPA auxiliary nameplate is on the top of the No. 5 cylinder head
cover.)
ENGINE MODEL
SERIAL No.
EPA: Environmental Protection Agency, U.S.A.
7
PRODUCT INFORMATION FOREWORD
SERVICE METER LOCATION
On top of the machine monitor
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR
Machine serial No.
Engine serial No.
Product Identification Number
Manufacturers name:
Address:
Distributor
Address
Phone
KOMATSU UK Ltd.
Durham Road
Birtley
Chester-Le street
County Durham DH32QX
United Kingdom
8
FOREWORD PRODUCT INFORMATION
MACHINE SERIAL PLATE
Valid until 31 December 2003
MODEL
SERIAL
WEIGHT
ENGINE POWER
MANUFACTURER
MANUFACTURING YEAR
MASS
Komatsu UK Ltd, Birtley, Co. Durham, United Kingdom
205-00-K1290
Komatsu UK Ltd, Birtley, Co Durham, United Kingdom
Valid as of 1 January 2004
MODEL
SERIAL
WEIGHT
ENGINE POWER
PRODUCT ID
NUMBER
MANUFACTURER
MANUFACTURING YEAR
MODEL
SERIAL No.
MANUFACT. YEAR
MASS
ENGINE POWER
Product Identification Number
MANUFACTURER
Manufactured by Komatsu UK Ltd.
for Komatsu Ltd.,Tokyo,Japan
Komatsu UK Ltd, Birtley, Co Durham, United Kingdom
kg
kW
205-00-K1291
9
CONTENTS FOREWORD
CONTENTS
FOREWORD............................................................................................................................................................ 2
SAFETY INFORMATION......................................................................................................................................... 3
NOISE............................................................................................................................................................ 5
VIBRATION.................................................................................................................................................... 5
INTRODUCTION...................................................................................................................................................... 6
DIRECTIONS OF MACHINE ......................................................................................................................... 6
PRODUCT INFORMATION..................................................................................................................................... 7
MACHINE SERIAL NUMBER PLATE AND ITS LOCATION........................... ... ... .... ... ... ... .... ... ... ... ... .... ... ... . 7
ENGINE SERIAL NUMBER PLATE AND ITS LOCATION............................................................................ 7
SERVICE METER LOCATION ...................................................................................................................... 8
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR ................................................................................. 8
MACHINE SERIAL PLATE ............................................................................................................................ 9
SAFETY INFORMATION....................................................................................................................................... 16
POSITION FOR ATTACHING SAFETY LABELS................................................................................................. 18
POSITION FOR ATTACHING SAFETY LABELS........................................................................................ 18
SAFETY LABELS ........ ... ....................................... ... ... .... ... ... ... .... ...................................... ......................... 19
SAFETY INFORMATION....................................................................................................................................... 26
SAFETY MACHINE OPERATION......................................................................................................................... 36
STARTING ENGINE.................................................................................................................................... 36
OPERATION................................................................................................................................................ 37
TRANSPORTATION.................................................................................................................................... 43
BATTERY .................................................................................................................................................... 43
TOWING ...................................................................................................................................................... 45
LIFTING OBJECTS WITH BUCKET............................................................................................................ 46
SAFETY MAINTENANCE INFORMATION........................................................................................................... 47
GENERAL VIEW ................................................................................................................................................... 56
GENERAL VIEW OF MACHINE.................................................................................................................. 56
GENERAL VIEW CONTROLS AND GAUGES............................................................................................ 57
EXPLANATION OF COMPONENTS..................................................................................................................... 58
MACHINE MONITOR .................................................................................................................................. 58
BASIC CHECK ITEMS.... ... .... ... ... ... .... ... ... ... .......................................... .... ... ... ............................................ 61
CONTROL LEVERS, PEDALS.................................................................................................................... 90
CEILING WINDOW...................................................................................................................................... 93
FRONT WINDOW........................................................................................................................................ 94
EMERGENCY EXIT FROM OPERATOR'S CAB......................................................................................... 99
DOOR LOCK ............................................................................................................................................... 99
CAP, COVER WITH LOCK........................................................................................................................ 100
HOT AND COOL BOX............................................................................................................................... 101
10
FOREWORD CONTENTS
CAB RADIO............................................................................................................................................... 101
ASHTRAY.................................................................................................................................................. 102
HANDLING AIR CONDITIONER ............................................................................................................... 103
CAR RADIO............................................................................................................................................... 116
FUSE ......................................................................................................................................................... 117
FUSIBLE LINK...... ... ... .... ... ... .......................................... .......................................... ... .............................. 118
CONTROLLER (COMPUTER) .................................................................................................................. 119
TOOLBOX.................................................................................................................................................. 119
GREASE GUN HOLDER........................................................................................................................... 119
REFUELLING PUMP................................................................................................................................. 120
HANDLING THE ACCUMULATOR ........................................................................................................... 120
MACHINE OPERATIONS AND CONTROLS...................................................................................................... 122
BEFORE STARTING ENGINE .................................................................................................................. 122
STARTING ENGINE....... ... ... ... .... ... .......................................... ... ... .... ....................................................... 135
AFTER STARTING ENGINE..................................................................................................................... 139
IN COLD AREAS (AUTOMATIC WARMING-UP OPERATION) ............................................................... 143
STOPPING THE ENGINE ......................................................................................................................... 148
CHECK AFTER SHUTTING OFF ENGINE ............................................................................................... 148
MACHINE OPERATION....................... .... ... ... .......................................... ... ... ........................................... 149
STEERING THE MACHINE....................................................................................................................... 153
SWINGING ................................................................................................................................................ 155
WORK EQUIPMENT CONTROLS AND OPERATIONS ........................................................................... 156
OPERATING WORKING MODE .......................... .... ... ... ... .... ... ... ... .... ... .......................................... ... ....... 157
PROHIBITED OPERATIONS ............................ ... .... ... ... ... .... ... .......................................... ... ... ... .............. 158
GENERAL OPERATION INFORMATION ................... ... ... .... ... .......................................... ... ... ... .............. 160
TRAVELLING ON SLOPES....................................................................................................................... 161
ESCAPE FROM MUD................................................................................................................................ 163
RECOMMENDED APPLICATIONS........................................................................................................... 164
REPLACEMENT AND INVERSION OF BUCKET..................................................................................... 166
PARKING MACHINE................................................................................................................................. 169
CHECK AFTER FINISHING WORK .......................................................................................................... 170
LOCKING................................................................................................................................................... 171
TRANSPORTATION............................................................................................................................................ 172
TRANSPORTATION PROCEDURE.......................................................................................................... 172
LOADING AND UNLOADING WITH TRAILER ......................................................................................... 173
LIFTING MACHINE.................................................................................................................................... 180
COLD WEATHER OPERATION......................................................................................................................... 182
COLD WEATHER OPERATION INFORMATION...................................................................................... 182
AFTER DAILY WORK COMPLETION....................................................................................................... 184
AFTER COLD WEATHER SEASON......................................................................................................... 185
LONG TERM STORAGE..................................................................................................................................... 186
BEFORE STORAGE.................................................................................................................................. 186
DURING STORAGE.................................................................................................................................. 186
AFTER STORAGE..................................................................................................................................... 187
11
CONTENTS FOREWORD
TROUBLESHOOTING......................................................................................................................................... 188
AFTER RUNNING OUT OF FUEL............................................................................................................. 188
PHENOMENA THAT ARE NOT FAILURES.............................................................................................. 188
TOWING THE MACHINE ............ .......................................... ... .... ... .......................................... ................ 189
LIGHTWEIGHT TOWING HOOK........................... ... ... .... ... ... ... .... .......................................... ... ... ... .......... 189
PRECAUTIONS ON PARTICULAR JOBSITES ........................................................................................ 190
DISCHARGED BATTERY ......................................................................................................................... 191
OTHER TROUBLE ............ .... ... ... .......................................... .......................................... .......................... 195
MAINTENANCE INFORMATION ........................................................................................................................ 204
LUBRICANTS, COOLANT AND FILTERS ......................................................................................................... 207
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC..................................................... 207
EXPLANATION OF LUBRICATION CHART DECAL ................................................................................ 211
ELECTRIC SYSTEM MAINTENANCE ...................................................................................................... 213
HANDLING HYDRAULIC SYSTEM........................................................................................................... 213
WEAR PARTS LIST ............................................................................................................................................ 214
USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE...................... 215
PROPER SELECTION OF FUEL, COOLANT AND LUBRICANTS .......................................................... 215
TIGHTENING TORQUE SPECIFICATIONS ....................................................................................................... 218
TIGHTENING TORQUE LIST.................................................................................................................... 218
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS ........................................................................... 219
SAFETY CRITICAL PARTS............................................................................. ... ... .................................... 219
MAINTENANCE SCHEDULE.............................................................................................................................. 220
MAINTENANCE SCHEDULE CHART....................................................................................................... 220
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER...................................................................... 223
MAINTENANCE PROCEDURE........................................................................................................................... 224
INITIAL 250 HOURS MAINTENANCE (ONLY AFTER THE FIRST 250 HOURS) .................................... 224
INITIAL 1000 HOURS MAINTENANCE (ONLY AFTER THE FIRST 1000 HOURS)................................ 224
WHEN REQUIRED............................. ... ... ... .......................................... .................................................... 225
CHECK BEFORE STARTING ............... ... ... .......................................... .... ... ... ... ... .... ................................ 247
EVERY 100 HOURS MAINTENANCE....................................................................................................... 248
EVERY 250 HOURS MAINTENANCE....................................................................................................... 249
EVERY 500 HOURS MAINTENANCE....................................................................................................... 256
EVERY 1000 HOURS MAINTENANCE..................................................................................................... 263
EVERY 2000 HOURS MAINTENANCE..................................................................................................... 267
EVERY 4000 HOURS MAINTENANCE..................................................................................................... 270
EVERY 5000 HOURS MAINTENANCE..................................................................................................... 271
SPECIFICATIONS............................................................................................................................................... 274
EXPLANATION OF LIFTING CAPACITY CHART..................................................................................... 276
GENERAL PRECAUTIONS ................................................................................................................................280
PRECAUTIONS RELATED TO SAFETY .................................................................................................. 280
12
FOREWORD CONTENTS
PRECAUTIONS WHEN INSTALLING ATTACHMENTS........................................................................... 282
HANDLING BUCKET WITH HOOK.................................................................................................................... 283
CHECKING FOR DAMAGE TO BUCKET WITH HOOK .......................... ... ... .... ... ... ... .... ... ... ... ... .... ... ... ... . 283
PROHIBITED OPERATIONS ............................ ... .... ... ... ... .... ... .......................................... ... ... ... .............. 283
MACHINES READY FOR ATTACHMENTS ....................................................................................................... 284
EXPLANATION OF COMPONENTS......................................................................................................... 284
HYDRAULIC CIRCUIT............................................................................................................................... 287
ATTACHMENT MOUNTING/DISMOUNTING PROCEDURE .................................. ... .... ... ... ... ... .... ... ... ... . 290
OPERATION.............................................................................................................................................. 292
LONG-TERM STORAGE........................................................................................................................... 294
SPECIFICATIONS................................................ ..................................................................................... 294
ATTACHMENT GUIDE........................................................................................................................................ 295
COMBINATIONS OF WORK EQUIPMENT............................................................................................... 295
SELECTION OF BUCKET TEETH............................................................................................................ 298
STANDARDS FOR SELECTING VERTICAL PIN TYPE AND HORIZONTAL PIN TYPE TEETH............ 298
HANDLING OF RUBBER PAD SHOE AND ROAD LINER ....................................................................... 299
HANDLING TRAPEZOIDAL BUCKET....................................................................................................... 301
HANDLING EXTENSION ARM.................................................................................................................. 302
HANDLING CLAMSHELL BUCKET .......................................................................................................... 303
RECOMMENDED ATTACHMENT OPERATIONS ............................................................................................. 304
HYDRAULIC BREAKER............................................................................................................................ 304
2-PC BOOM......................................................................................................................................................... 309
FEATURES OF 2-PIECE BOOM & ARM .................................................................................................. 309
OPERATION.............................................................................................................................................. 310
TESTING AND ADJUSTING ..................................................................................................................... 311
PERIODIC MAINTENANCE ........................... ... ... .... ... ... ... .... .......................................... ... ... ... ................. 312
TRANSPORTATION.................................................................................................................................. 312
SPECIFICATIONS................................................ ..................................................................................... 313
explanation of LIFTING CAPACITY CHART ............................................................................................. 314
STRAIGHT BOOM PC340LC/NLC-7K................................................................................................................ 317
OPERATION.............................................................................................................................................. 317
WORKING RANGE (PC 340 STRAIGHT BOOM)..................................................................................... 321
TRANSPORTATION (Straight Boom equipment) - PC340LC................................................................... 322
TRANSPORTATION (Straight Boom equipment) - PC340NLC ................................................................ 323
HIGH REACH DEMOLITION EQUIPMENT ........................................................................................................ 324
OPERATION INSTRUCTION FOR HIGH REACH DEMOLITION EQUIPMENT...................................... 324
GENERAL VIEW OF MACHINE............................................................................................ ... ... .... .......... 324
MACHINE OPERATIONS AND CONTROLS...................................................................................................... 336
BEFORE STARTING ENGINE .................................................................................................................. 336
FUNCTION CHECK................................................................................................................................... 337
PRECAUTIONS WHEN OPERATING......................... ... ... .... ... ... ... .... ... .......................................... ... ... .... 337
OPERATION.............................................................................................................................................. 342
13
CONTENTS FOREWORD
RAISING WORK EQUIPMENT.............................. ... ... .... ... .......................................... ... ... .... ................... 346
WORKING RANGE AND USING RANGE OF BOOM............................................................................... 347
POSTURE WHEN LEAVING MACHINE ................................................................................................... 350
DEMOLITION DIGGING BOOM INSTALLATION AND REMOVAL................................................................... 351
PROCEDURE FOR INSTALLATION AND REMOVAL OF DEMOLITION DIGGING EQUIPMENT. ........ 351
PURGING AIR PROCEDURES........................................................................................................................... 362
PURGING PROCEDURE TO REMOVE AIR FROM HYDRAULIC CYLINDER LINES............................. 362
PROCEDURE FOR PURGING AIR FROM BOOM LOCK VALVE PPC CIRCUIT.................................... 362
PURGING AIR FROM HYDRAULIC DRIFT PREVENTATIVE VALVE PPC CIRCUITS OF MID LINK AND
ARM CYLINDER........................................................................................................................................ 364
TRANSPORTATION (high reach demolition equipment fitted).................................................................. 366
TRANSPORTATION (demolition digging equipment fitted)....................................................................... 367
TRANSPORTATION (high reach demolition equipment alone)................................................................. 367
14
SAFETY
11
WARNING
Please read and make sure that you fully understand precautions described in this manual and the safety labels on
the machine. When operating or servicing the machine,
always follow these precautions strictly.
15
SAFETY INFORMATION SAFETY
SAFETY INFORMATION
SAFETY INFORMATION....................................................................................................................................... 16
POSITION FOR ATTACHING SAFETY LABELS.................................................................................................. 18
POSITION FOR ATTACHING SAFETY LABELS.............................. ... ... ... .... ... .......................................... ..... 18
SAFETY LABELS.............................................................................................................................................. 19
SAFETY INFORMATION....................................................................................................................................... 26
SAFETY RULES.................................... ... ... .......................................... ...................................................... 26
IF ABNORMALITIES ARE FOUND .................... ... ... ... .......................................... .... ... ... ... .... ... ... ... ... ......... 26
WORKING WEAR AND PERSONAL PROTECTIVE ITEMS ...................................................................... 26
FIRE EXTINGUISHER AND FIRST AID KIT ............................................................................................... 26
SAFETY EQUIPMENT..................................... .......................................... .................................................. 27
KEEP MACHINE CLEAN............................................................................................................................. 27
KEEP OPERATOR'S COMPARTMENT CLEAN......................................................................................... 27
LEAVING OPERATOR'S SEAT WITH LOCK.............................................................................................. 27
HANDRAILS AND STEPS........................................................................................................................... 28
MOUNTING AND DISMOUNTING ........................................ .......................................... ... .... ... ... ... ... ......... 29
NO PERSONS ON ATTACHMENTS .. .......................................... ... ... ... .... ... ... ... ......................................... 29
BURN PREVENTION .................................................................................................................................. 29
FIRE PREVENTION AND EXPLOSION PREVENTION.............................................................................. 30
ACTION IF FIRE OCCURS ......................................................................................................................... 31
WINDSHIELD WASHER FLUID ......................................... ... ... .... .......................................... ... ... ... ............ 31
FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS
PREVENTION.............................................................................................................................................. 31
ATTACHMENT INSTALLATION.................................................................................................................. 31
ATTACHMENT COMBINATIONS................................................................................................................ 32
CAB WIDOW GLASSES..............................................................................................................
UNAUTHORIZED MODIFICATIONS........................................................................................................... 32
SAFETY AT JOBSITE .............. ... ... .... .......................................... ... ... ... ...................................................... 32
WORKING ON LOOSE GROUND............................................................................................................... 32
DISTANCE TO HIGH VOLTAGE CABLES.................................................................................................. 33
ENSURE GOOD VISIBILITY ....................................................................................................................... 33
VENTILATION FOR ENCLOSED AREA ..................................................................................................... 34
SIGNALMAN'S SIGNAL AND SIGNS.......................................................................................................... 34
EMERGENCY EXIT FROM OPERATOR'S CAB......................................................................................... 34
ELECTROMAGNETIC INTERFERENCE.................... .... ... ... ... .......................................... .... ... ... ... ... .... ... ..34
ASBESTOS DUST HAZARD PREVENTION............................................................................................... 35
................ 32
SAFETY MACHINE OPERATION ......................................................................................................................... 36
STARTING ENGINE................... ... ... ... .... ... ... .......................................... ... .... ... ............................................... 36
CHECKS BEFORE STARTING ENGINE .................................................................................................... 36
SAFETY RULES FOR STARTING ENGINE ............................................................................................... 37
STARTING ENGINE IN COLD WEATHER .................................................................................................37
OPERATION..................................................................................................................................................... 37
CHECKS AFTER STARTING ENGINE ....................................................................................................... 37
SAFETY RULES FOR CHANGING MACHINE DIRECTIONS .................................................................... 38
SAFETY RULES FOR TRAVELLING.......................................................................................................... 38
TRAVELLING ON SLOPES......... ... .......................................... .... ... ... .......................................... ............... 39
OPERATIONS ON SLOPES........................................................................................................................ 40
PROHIBITED OPERATIONS ...................................................................................................................... 41
OPERATIONS ON SNOW........................................................................................................................... 43
PARKING MACHINE ................................... .... ... ... ... ....................................... ... ... .... ... ... ... .... ..................... 43
TRANSPORTATION......................................................................................................................................... 44
16
SAFETY SAFETY INFORMATION
SHIPPING THE MACHINE.................................................... ... ... ... .......................................... ... ................ 44
BATTERY ......................................................................................................................................................... 44
BATTERY HAZARD PREVENTION......................... ... ... ... .... ... ... ... .... ......................................... .... ... ......... 44
STARTING ENGINE WITH BOOSTER CABLES..................................................... ... .... ... ... ... ... .... ... ... ... ... 45
TOWING........................................................................................................................................................... 46
SAFETY RULES FOR TOWING.................................................................................................................. 46
LIFTING OBJECTS WITH BUCKET................................................................................................................. 47
SAFETY RULES FOR LIFTING OBJECTS................................................................................................. 47
SAFETY MAINTENANCE INFORMATION............................................................................................................ 48
WARNING TAG........................................................... ... ... .... ... ... ... ............................................................. 48
KEEP WORK PLACE CLEAN AND TIDY.................................................................................................... 48
APPOINT LEADER WHEN WORKING WITH OTHERS............................................................................. 48
STOP ENGINE BEFORE CARRYING OUT MAINTENANCE..................................................................... 49
TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING.................................................... 50
PROPER TOOLS......................................................................................................................................... 50
ACCUMULATOR......................................................................................................................................... 51
PERSONNEL............................................................................................................................................... 51
ATTACHMENTS.......................................................................................................................................... 51
WORK UNDER THE MACHINE.................. ... ... ... .... ... ... .......................................... ... .... ... ......................... 51
NOISE.......................................................................................................................................................... 52
WHEN USING HAMMER............................................................................................................................. 52
WELDING WORKS...................................................................................................................................... 52
REMOVING BATTERY TERMINALS .......................................................................................................... 52
SAFETY FIRST WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION................. 53
DO NOT DISASSEMBLE RECOIL SPRINGS............................................................................................. 53
SAFETY RULES FOR HIGH-PRESSURE OIL............................................................................................ 53
SAFETY HANDLING HIGH-PRESSURE HOSES....................................................................................... 54
WASTE MATERIALS................................... ... ... ... .... ... ... .......................................... ... .... ... ......................... 54
AIR CONDITIONER MAINTENANCE.......................................................................................................... 54
COMPRESSED AIR .................................................................................................................................... 54
PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS.................................................................... 55
17
POSITION FOR ATTACHING SAFETY LABELS SAFETY
POSITION FOR ATTACHING SAFETY LABELS
The following warning signs 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 pla ce and always
keep them clean. When cleaning them, do not use organic solvents or gasoline, there may cause the labels to
peel off.
● There are also other labels in addition to the warning signs and safety labels. Handle 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.
POSITION FOR ATTACHING SAFETY LABELS
611
X
Z
10
e
c
b
d
9
X
4
2
3
18
12
a
f
7
13
5
8
9
10
SAFETY POSITION FOR ATTACHING SAFETY LABELS
SAFETY LABELS
1. (207-00-K1950)
● Warnings for operation, inspe ction and maintenance.
● Improper operation and maintenance can cause serious
injury or death.
● Read the manual and labels before operation and mainte-
nance.
Follow instructions and warnings in manual and in labels
on machine.
● a. Keep the manual in machine cab near operator.
If this manual is lost, please co ntact your Komat su distr ibu-
tor for a replacement.
19
POSITION FOR ATTACHING SAFETY LABELS SAFETY
● b. Always apply lock when leaving operator’s seat.
● c. WARNING - No passengers
No passengers allowed to ride on machine while it is moving
● d. WARNING - DANGER OF FALLING OBJECTS
Do not operate where a danger of falling objects exists.
Consult your dealer for fitting of FOPS protection.
20
SAFETY POSITION FOR ATTACHING SAFETY LABELS
● e. HAZARDOUS - Voltage hazard
Serious injury or death can occur if machin e or attachments are not kept safe distance away from electric lines
● f. Control levers operational function diagram.
2. (09083-A0481)
● Warning when opening front window
● When raising window, lock it in place with lock pins on both
sides.
● Falling window can cause injury.
21
POSITION FOR ATTACHING SAFETY LABELS SAFETY
3. (20Y-00-K2220)
● Emergency exit
● Read operation manual before operation
4. (207-00-71370)
● Pump Control override switch and swing lock override
switch
● Read the operation manual before operation
5. (09133-A3281)
Keeping out of moving area
To prevent SEVERE INJURY or DEATH do the following before
moving machine or its attachments:
● Sound horn to alert people nearby.
● Be sure no one is on or near machine or in the swing area.
● Rotate cab for full view of travel path if it can be done
safely.
● Use spotter if view is obstructed.
Always follow the above
22
SAFETY POSITION FOR ATTACHING SAFETY LABELS
6. (09805-A0881)
Keeping out of working range area.
● Make sure no one is in the work equipment swing area.
7. (09667-A0481)
● Do not open cover while engine is running.
8. (09659A057B) Warnings for handling the accumulator
Explosion hazard
● Keep away from flame.
● Do not weld or drill.
● Read operation manual before operation.
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POSITION FOR ATTACHING SAFETY LABELS SAFETY
9. (09653-A0581)
Warning for high tempera ture coolant and oil.
Hot water and oil hazard
To prevent hot water and oil from spurting out:
● Turn engine off.
● Allow water to cool.
● Slowly loosen cap to relieve pressure before removing.
Read operation manual before operation.
10. (09657-A0881)
● Precautions when adjusting track tension
11. (09808-A0881)
● Precautions when handling cable
12. (09805-A0881)
● Warning for falling from upper-structure.
● Keep away from sides of machine.
● Keep of counterweight.
● Do not ride on machine when it is moving
24
SAFETY POSITION FOR ATTACHING SAFETY LABELS
13. (09805-C0881)
● Roll-over precautions
● Sign indicates a hazard of falling.
● Do not stand on this place here.
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SAFETY INFORMATION SAFETY
SAFETY INFORMATION
SAFETY RULES
● 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 severely 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 FOUND
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 warn ing devices or monitor ), re port to the pe rson
in charge and have the necessary action taken. Do not operate the machine until the a bnormality has been corrected.
WORKING WEAR AND PERSONAL PROTECTIVE ITEMS
● Do not wear loose clothing or accessories. There is a dan-
ger 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 danger that it may get caught up in the machine.
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 KIT
Always follow the precautions below to prepare for action if any injury or fire should occur.
● Make sure that fire extinguishers have been provided and
read 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 is up to date and usable.
● Store a first aid kit on board. Carry out periodic checks and
add to the contents if necessary.
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SAFETY SAFETY INFORMATION
SAFETY EQUIPMENT
● Make sure that all guards and covers are in their proper position. Have guards and covers repaired immedi-
ately if they are damaged.
● Understand the safety features and their use.
● Never remove or disable any safety features. Keep them in good operating condition.
KEEP MACHINE CLEAN
● If water gets into the electrical system, it creates a hazard
which can cause malfunctions or faulty operation. Do not
use water or steam to wash the electrical system (sensors,
connectors).
● If inspection and maintenance are carried out when the
machine is still dirty with mud or oil, there is a danger that
you will slip and fall, or that dirt or mud will get into your
eyes. Always keep the machine clean.
KEEP OPERATOR'S COMPARTMENT CLEAN
● When entering the operator's compartment, remove all mud and oil from the soles of your shoes. If you oper-
ate the pedal with mud or oil affixed to your shoes, your foot may slip and 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 cab.
LEAVING OPERATOR'S SEAT WITH LOCK
● Before getting up from the operator's seat (such as when
opening or closing the front window or roof window, or
when removing or installing the bottom window, or when
adjusting the operator's seat), lowe r the work equipment
completely to the ground, set safety lock lever (1) secur ely
to the LOCK position, then stop the engine. If you accidentally touch the levers when they are not locked, there is a
danger that the machine may suddenly move and cause
serious injury or property damage.
Free
Lock
27
SAFETY INFORMATION SAFETY
● When leaving the machine, always lower the work equip-
ment completely to the ground, set safety lock lever (1)
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.
HANDRAILS AND STEPS
To prevent personal injury caused by slipping or falling off the machine, do as follows.
● Use the handrails and steps marked by arrows in the dia-
gram on the right when getting on or off the machine.
● To ensure safety, face the machine and maintain three-
point contact (both feet and one hand, or both hands and
one foot) with the handrails and steps (including the track
shoe) to ensure that you support yourself.
● Do not grip the control levers when getting on or off the
machine.
● Never climb on the engine hood or covers where there are
no non-slip pads.
● Before getting on or off the machine, check the handrails and steps (including the track shoe). If there is any
oil, grease, or mud on the handrails or steps (including the track shoe), wipe it off immediately. Always keep
these parts clean. Repair any damage and tighten any loose bolts.
● Do not get on or off the machine while holding tools in your hand.
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