Komatsu PC130-6K, PC150LGP-6K Service Manual
UEAM000602
Operation &
Maintenance Manual
PC130
PC150LGP
HYDRAULIC EXCAVATOR
SERIAL NUMBER
PC130-6K - K30001
PC150LGP-6K - K35001
and up
-6K
-6K
and up
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 personel who
will come into contact with the machine.
1. FOREWORD
This manual provides rules and guidelines which will help you use this machine safely and effectively. Keep
this manual handy and have all personnel read it periodically . If this manual has been lost or has become dirty and
cannot be read, request a replacement manual from Komatsu or your Komatsu distributor.
If you sell the machine, be sure to give this manual to the new owners.
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 for your
machine of for questions regarding information in this manual.
WARNING
• This operation & maintenance manual may contain attachments and optional equipment that are not
available in your area. Please consult your local Komatsu distributor for those items you require.
• This machine complies with EC directive (89/392/EEC).
Machines complying with this directive display the CE mark.
• Improper operation and maintenance of this machine can be hazardous and could result in serious
injury or death.
• Operators and maintenance personnel should read this manual thoroughly before beginning operation or maintenance.
• Some actions involved in operation and maintenance of the machine can cause a serious accident,
if they are not done in a manner described in this manual.
• The procedures and precautions given in this manual apply only to intended uses of the machine. If
you use your machine for any unintended uses that are not specifically prohibited, you must be sure
that it is safe for you and others. In no event should you or others engage in prohibited uses or
actions as described in this manual.
• Komatsu delivers machines that comply with alle applicable regulations and standards of the country to which it has beed shipped. If this machine has been purchased in another country of purchased from someone in another country , it may lack certain safety devices and specifi-cations 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.
• The description of safety is given in SAFETY INFORMATION on page 0-2 and in SAFETY from page
1-1.
PC130/150LGP-6K ENG
0-1
2. SAFETY INFORMATION
2.1 SAFETY MESSAGES
Most accidents are caused by the failure to follow fundamental rules for the operation and maintenance of
machines.
To avoid accidents, read, understand and follow all precautions and warmings in this manual and on the
machine before performing operation and maintenance.
To identify hazards on the machine pictorial decals are used (see POSITION FOR ATTACHING SAFETY
LABELS)
RED WARNING TRIANGLE - This is used on safety labels where there is a high probabil-
ity of serious injury or death if the hazard is not avoided.
These safety messages or labels usually describe precautions that must be taken to avoid the hazard. Failure to
avoid this hazard may also result in serious damage to the
machine.
ORANGE WARNING TRIANGLE - This is used on safety labels where there is a potentially
dangerous situation which could result in serious injury or
death if the hazard is not avoided. These safety messages
or labels usually describe precautions that must be taken
to avoid the hazard. Failure to avoid this hazard may also
result in serious damage of the machine
YELLOW SAFETY TRIANGLE - This is used on safety labels for hazards which could result
in minor or moderate injury if the hazard is not avoided.
This word might also be used for a hazard where the only
result could be damage to the machine.
NOTICE - This word is used for precautions that must be taken to
avoid actions which could shorten the life of the machine.
Safety precautions are described in SAFETY from page 1-1.
Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance. Therefore that safety message in this manual and on the machine may not include all possible safety
precautions. If any procedures or actions not specifically recommended or allowed in this manual are used, you
must be sure that you and others can do such procedures and actions safely and without damaging the machine.
If you are unsure about the safety of some procedures, contact Komatsu or your Komatsu distributor.
NOTICE:
The PC150LGP has been designed specifically for low ground pressure applications.
Under no circumstances should this machine be used for heavy duty/demolition purposes. If you are unsure of
the suitability of the machine to your particular application, please contact Komatsu or your Komatsu distributor.
0-2
PC130/150LGP-6K ENG
2.2 NOISE
PC130-6K + PC150LGP-6K
Valid until 31 december 2001
Operator ears noise value Ambient noise value
(Sound pressure level) (Sound power level)
2. SAFETY INFORMATION
95/27/EC
Noise level indicated is the guaranteed value as specified in the directive 86/662/EEC, as amended by 95/27/EC.
95/27/EC
Valid as of 1 January 2002
• Sound pressure level at the operator's station,
measured according to ISO6395 (Dynamic
test method, simulated working cycle)
• Sound power level emitted. This is the guaranteed value as specified in European directive
2000/14/EC.
2.3 VIBRATION
The weighted root mean square acceleration value to which the operator's
arms are subjected does not exceed 2.5 m/s
The weighted root mean square acceleration value to which the operator's
body is subjected does not exceed 0.5 m/s
These results were obtained by accelerometers during trench digging.
PC130/150LGP-6K ENG
2
2
0-3
3. INTRODUCTION
3.1 INTENDED USE
This Komatsu HYDRAULIC EXCAVATOR is designed to be used mainly for the following work:
• Digging work
• Smoothing work
• Ditching work
• Loading work
See the section "12.15 WORK POSSIBLE USING HYDRAULIC EXCAVATOR" for further details.
3.2 FEATURES
• This Komatsu HYDRAULIC EXCA V A T OR is equipped with various controls based on an advanced electronics
system.
° The monitor panel greatly facilitates daily maintenance and self-diagnosis.
° Working mode, active mode and travel speed are selectable.
° Digging and lifting force can be increased by light-touch control.
(For details, see operaton section).
• Adjustable wrist control levers make operations smooth and easy.
• Fresh filtered air heater assures comfortable operaton.
• Low noise level and smart urban-style design and coloring.
• Superb operating performance provided by powerful engine and high-performance hydraulic pumps.
• Low fuel consumption controlled by an electronic control system provides an environment-friendly machine.
3.3 BREAKING IN THE MACHINE
Your Komatsu machine has been thoroughly adjusted and tested before shipment.
However, operating the machine under severe conditions at the beginning can adversely affect the perform-
ance and shorten the life of the machine.
Be sure to break in the machine for the initial 100 hours (as indicated by the service meter).
During breaking in:
• Idle the engine for 5 minutes after starting it up.
• Avoid operation with heavy loads or at high speeds.
• Avoid sudden starts, sudded acceleration, sudden steering and sudded stops except in cases of emergency.
The precautions given in this manual for operating, maintenance and safety procedures are only those that
apply when this product is used for the specific purpose. If the machine is used for a purpose that is not listed in this
manual, Komatsu cannot bear any responsibility for safety. Alle consideration of safety in such operations is the
responsibility of the user.
Operations that are prohibited in this manual must never be carried out under any circumstances.
0-4
PC130/150LGP-6K ENG
4. LOCATION OF PLATES, TABLES TO ENTER SERIAL NO. AND DISTRIBUTOR
4. LOCATION OF PLATES, TABLES TO ENTER SERIAL NO.
AND DISTRIBUTOR
MACHINE SERIAL NO. PLATE POSITION
On the front bottom right of the operator’s cab
ENGINE SERIAL NO. PLATE POSITION
On the upper side of the engine cylinder head cover.
TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR
Machine serial No.
Engine serial No.
Product Identification Number :
Manufacturers name: KOMATSU UK Ltd.
Address: Durham Road
Birtley
Chester-Le street
County Durham DH32QX
United Kingdom
Distributor
Address
Phone
0-5
4. LOCATION OF PLATES, TABLES TO ENTER SERIAL NO. AND DISTRIBUTOR
MACHINE SERIAL PLATE.
Valid until 31 December 2003
Valid as of 1 January 2004
MODEL
SERIALNo.
MANUFACT.YEAR
MASS
ENGINEPOWER
ProductIdentificationNumber
MANUFACTURER
kg
kW
ManufacturedbyKomatsuUKLtd.
forKomatsuLtd.,Tokyo,Japan
205-00-K1291
0-6
5. CONTENTS
1. Foreword.......................................................................................................................................... 0-1
2. Safety information .......................................................................................................................... 0-2
3. Introduction ..................................................................................................................................... 0-4
4. Location of plates, tabel to enter serial No. and distributor ....................................................... 0-5
SAFETY
6. General precautions ....................................................................................................................... 1-2
7. Precautions during operation........................................................................................................ 1-9
7.1 Before starting engine............................................................................................................ 1-9
7.2 After starting engine............................................................................................................... 1-11
7.3 Transportation........................................................................................................................ 1-18
7.4 Battery ................................................................................................................................... 1-19
7.5 Towing.................................................................................................................................... 1-21
7.6 Bucket with hook.................................................................................................................... 1-22
8. Precautions for maintenance......................................................................................................... 1-23
8.1 Before carrying out maintenance........................................................................................... 1-23
8.2 During maintenance............................................................................................................... 1-27
9. Position for attaching safety labels ................................................................................................... 1-32
9.1 Lifting capacity....................................................................................................................... 1-36
OPERATION
10. General view.................................................................................................................................... 2-2
10.1 General view of machine ....................................................................................................... 2-2
10.2 General view of controls and gauges .................................................................................... 2-3
11. Explanation of components........................................................................................................... 2-4
11.1 Machine monitor .................................................................................................................... 2-4
11.2 Switches ................................................................................................................................ 2-15
11.3 Control levers, pedals ............................................................................................................ 2-19
11.4 Ceiling window....................................................................................................................... 2-24
11.5 Front window ......................................................................................................................... 2-25
11.6 Door lock................................................................................................................................ 2-27
11.7 Cap, cover with lock............................................................................................................... 2-28
11.8 Luggage tray.......................................................................................................................... 2-29
11.9 Ashtray................................................................................................................................... 2-29
11.10 Car heater.............................................................................................................................. 2-30
11.11 Car radio................................................................................................................................ 2-32
11.12 Fuse....................................................................................................................................... 2-34
11.13 Fusible link............................................................................................................................. 2-34
11.14 Controllers ............................................................................................................................. 2-34
11.15 Tool box ................................................................................................................................. 2-34
11.16 Grease pump holder .............................................................................................................. 2-34
11.17 Refueling pump...................................................................................................................... 2-35
PC130/150LGP-6K ENG
0-7
5. CONTENTS
12. Operation ......................................................................................................................................... 2-36
12.1 Check before starting............................................................................................................. 2-38
12.2 Starting engine....................................................................................................................... 2-48
12.3 Operations and checks after starting engine ......................................................................... 2-51
12.4 Moving machine off................................................................................................................ 2-57
12.5 Steering machine................................................................................................................... 2-60
12.6 Stopping machine .................................................................................................................. 2-62
12.7 Swinging ................................................................................................................................ 2-63
12.8 Operation of work equipment................................................................................................. 2-64
12.9 Working mode selection ........................................................................................................ 2-65
12.10 Handling active mode ............................................................................................................ 2-67
12.11 Prohibitions for operation....................................................................................................... 2-69
12.12 Precautions for operation....................................................................................................... 2-71
12.13 Precautions when traveling up or down hills.......................................................................... 2-72
12.14 How to escape from mud....................................................................................................... 2-74
12.15 Work possible using hydraulic excavator............................................................................... 2-75
12.16 Replacement and inversion of bucket.................................................................................... 2-76
12.17 Parking machine .................................................................................................................... 2-78
12.18 Check after finishing work...................................................................................................... 2-79
12.19 Stopping engine..................................................................................................................... 2-80
12.20 Check after stopping engine .................................................................................................. 2-81
12.21 Locking .................................................................................................................................. 2-81
12.22 Overload warning device ....................................................................................................... 2-82
12.23 Offset boom ........................................................................................................................... 2-83
13. Transportation................................................................................................................................. 2-85
13.1 Loading, unloading work........................................................................................................ 2-85
13.2 Precautions for loading .......................................................................................................... 2-86
13.3 Precautions for transportation................................................................................................ 2-87
13.4 Lifting the machine................................................................................................................. 2-87
14. Cold weather operation .................................................................................................................. 2-92
14.1 Precautions for low temperature............................................................................................ 2-92
14.2 Precautions after completion of work..................................................................................... 2-94
14.3 After cold weather.................................................................................................................. 2-94
15. Long-term storage .......................................................................................................................... 2-95
15.1 Before storage ....................................................................................................................... 2-96
15.2 During storage ....................................................................................................................... 2-96
15.3 After storage .......................................................................................................................... 2-96
15.4 Starting machine after long-term storage .............................................................................. 2-96
16. Troubleshooting.............................................................................................................................. 2-97
16.1 When machine runs out of fuel .............................................................................................. 2-97
16.2 Phenomena that are not failures............................................................................................ 2-97
16.3 Method of towing machine..................................................................................................... 2-97
16.4 Using method for light-weight towing hook ............................................................................ 2-98
16.5 Precautions on particular jobsites.......................................................................................... 2-98
16.6 If battery is discharged........................................................................................................... 2-99
16.7 Other trouble.......................................................................................................................... 2-103
0-8
PC130/150LGP-6K ENG
5. CONTENTS
MAINTENANCE
17. Guides to maintenance .................................................................................................................. 3-2
18. Outlines of service.......................................................................................................................... 3-4
18.1 Outline of oil, fuel, coolant ..................................................................................................... 3-4
18.2 Outline of electric system....................................................................................................... 3-8
18.3 Outline of hydraulic system.................................................................................................... 3-9
19. Wear parts list ................................................................................................................................. 3-10
20. Use of fuel, coolant and lubricants according to ambient temperature .................................... 3-11
21. Standard tightening torques for bolts and nuts .......................................................................... 3-15
21.1 Introduction of necessary tools .............................................................................................. 3-15
21.2 Torque list .............................................................................................................................. 3-16
22. Periodic replacement of safety critical parts ............................................................................... 3-17
23. Maintenance schedule chart.......................................................................................................... 3-21
23.1 Maintenance schedule chart.................................................................................................. 3-21
23.2 Maintenance interval when using hydraulic breaker.............................................................. 3-23
24. Service procedure........................................................................................................................... 3-24
24.1 Initial 250 hours service ......................................................................................................... 3-24
24.2 When required ....................................................................................................................... 3-25
24.3 Check before starting............................................................................................................. 3-41
24.4 Every 50 hours service .......................................................................................................... 3-46
24.5 Every 100 hours service ........................................................................................................ 3-47
24.6 Every 250 hours service ........................................................................................................ 3-50
24.7 Every 500 hours service ........................................................................................................ 3-54
24.8 Every 1000 hours service ...................................................................................................... 3-60
24.9 Every 2000 hours service ...................................................................................................... 3-63
24.10 Every 4000 hours service ...................................................................................................... 3-65
24.11 Every 5000 hours service ...................................................................................................... 3-66
SPECIFICATIONS
25. Specifications.................................................................................................................................. 4-2
PC130/150LGP-6K ENG
0-9
5. CONTENTS
OPTIONS AND ATTACHMENTS
26. General Precautions .............................................................................................................................. 5-2
26.1 General precautions related to safety......................................................................................... 5-2
26.2 Precautions when installing attachments.................................................................................... 5-3
27. Handling bucket with hook ..................................................................................................................... 5-4
27.1 Checking for damage to bucket with hook.................................................................................. 5-4
27.2 Prohibited operations.................................................................................................................. 5-4
27.3 Precautions during operation...................................................................................................... 5-4
28. Machine ready for attachments.............................................................................................................. 5-5
28.1 Explanation of components ........................................................................................................ 5-5
28.2 Operation .................................................................................................................................... 5-7
28.3 Long-term storage ...................................................................................................................... 5-9
28.4 Specifications.............................................................................................................................. 5-9
29. Introduction of optianal parts and attachments .................................................................................... 5-10
29.1 Introduction of optianal parts and attachments......................................................................... 5-10
29.2 Attachment installation combination table .................................................................................5-11
29.3 Selection of track shoes............................................................................................................ 5-12
30. Extending machine service life ............................................................................................................ 5-14
30.1 Hydraulic breaker...................................................................................................................... 5-14
30.2 Power ripper ............................................................................................................................. 5-17
30.3 Fork grab .................................................................................................................................. 5-18
30.4 Grapple bucket ......................................................................................................................... 5-19
30.5 Scrap grapple ........................................................................................................................... 5-20
30.6 Crusher & cutter........................................................................................................................ 5-21
30.7 Hydraulic pile driver .................................................................................................................. 5-22
30.8 Hydraulic excavator with multi-purpose crane .......................................................................... 5-23
0-10
PC130/150LGP-6K ENG
SAFETY
PC130/150LGP-6K ENG
WARNING
Read and follow all safety precautions. Failure to do so may result in serious injury or death.
This safety section also contains precautions for optional equipment
and attachments.
1-1
WARNING: for reasons of
safety, always follow these
6 GENERAL PRECAUTIONS
safety precautions.
SAFETY RULES
• Only trained and authorised personnel can operate and maintain the machine.
• Follow all safety rules, precautions and instructions when operating or performing maintenance on the machine.
• Do not operate the machine of you are not feeling well, or if you are taking medicine which will make you
sleepy, or if you have been drinking. Operating in such condition will adversely affect your judgement and
may lead to an accident.
• When working with another operator of with a person on worksite traffic duty, be sure that all personnel
understand all hand signals that are to be used.
• Always follow all rules related to safety .
SAFETY FEATURES
• Be sure that all guards and covers are in their proper position. Have guards and covers repaired if damaged.
• Use safety features such as safety lock levers 햲 properly .
• Never remove any safety features. Always keep them in good operating condition.
Safety lock lever see "12.17 PARKING MACHINE".
• Improper use of safety features could result in serious bodily injury or death.
CLOTHING AND PERSONAL PROTECTIVE ITEMS
• Avoid loose clothing, jewelery , and loose long hair . They can catch on controls or in moving parts and cause
injury or death.
• Also, do not wear oily clothes, because they are flammable.
• Wear a hard hat, safety glasses, safety shoes, mask or gloves wehn operating or maintaining the machine.
Always wear safety goggles, hard hat and heavy gloves if your job involves scattering metal chips or minute
materials particularly when driving pins with a hammer and when cleaning the air cleaner element with
compressed air. Check also that there is no one near the machine.
• Check that all protective equipment functions properly before using.
UNAUTHORIZED MODIFICA TION
Any modification made without authorization from Komatsu can create hazards. Before making a modification,
consult your Komatsu distributor. Komatsu will not be responsible for any injury or damage caused by any
unauthorized modification.
1-2
PC130/150LGP-6K ENG
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
6 GENERAL PRECAUTIONS
ALWA YS APPLY LOCK WHEN LEAVING OPERATOR'S SEAT
• When standing up from the operator's seat, always place the safety lock levers 햲 securely in the LOCK
position. If you accidentally touch the levers when they are not locked, the work equipment may suddenly
move and cause serious injury or damage.
• When leaving the machine, lower the blade and ripper completely to the ground, set the safety lock levers 햲
to the LOCK position, then stop the engine. Use the key to lock alle the equipment.
Always remove the key and take it with you.
Work equipment posture see "12.17 PARKING MACHINE".
Locking see "12.21 LOCKING"
MOUNTING AND DISMOUNTING
• Never jump on or off the machine. Never get on or off a moving machine.
• When getting on or off the machine, always face the machine and use the handrails and steps.
• Never hold any control levers or lock levers when getting on or off the machine.
• To ensure safety, always maintain three-point contact (both feet and one hand, or both hands and one foot)
with the handrails and steps to ensure that you support yourself.
• If there is anyu oil, grase, or mud on the handrails or steps, wipe it off immediately . Always keep these parts
clean. Repair any damage and tighten any loose bolts.
• When getting on or off the machine, or when moving along the top of the track, if you hold the handrail inside
the door when moving on top of the track shoe, and the door lock is not locked securely , the door may move
and cause you to fall.
Always lock the door securely .
Method of locking door see "11.6 DOOR LOCK"
PC130/150LGP-6K ENG
1-3
WARNING: for reasons of
safety, always follow these
6 GENERAL PRECAUTIONS
safety precautions.
FIRE PREVENTION FOR FUEL AND OIL
Fuel, oil, and antifreeze can be ignited by a flame. Fuel is particularly flammable and can be hazardous.
Always observe the following:
• Keep any flame or lighted cigarette away form flammable fluids.
• Stop the engine and do not smoke when refueling
• Tighten all fuel and oil caps securely
• Use well-ventilated areas for adding or storing oil and fuel.
• Keep oil and fuel in the determined place and do not allow unauthorized persons to enter.
PRECAUTIONS WHEN HANDLING AT HIGH TEMPERATURE
• Immediately after operations are stopped, the engine oil and hydraulic oil are at high temperature and are
still under pressure. Attempting to remove the cap, drain the oil or water, or replace the filters may lead to
serious burns. Always wait for the temperature to go down, and follow the specified procedures when carrying out these operations.
• T o prevent hot water from spurting out, stop the engine, wait for the water to cool, then loosen the cap slowly
to relieve the pressure before removing the cap.
(When checking if the water temperature has gone down, put your hand near the front face of the radiator
and check the air temperature. Be careful not to touch the radiator).
• To prevent hot oil from spurting out, stop the engine, wait for the oil to cool, then loosen the cap slowly to
relieve the pressure before removing the cap.
(When checking if the oil temperature has gone down, put your hand near the front face of the hydraulic tank
and check the air temperature. Be careful not to touch the hydraulic tank).
1-4
PC130/150LGP-6K ENG
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
6 GENERAL PRECAUTIONS
ASBESTOS DUST HAZARD PREVENTION
Asbestos dust can be hazardous to your health if it is inhaled.
Komatsu does not use asbestos in its products, but if you handle materials containing asbestos fibers, follow
the guidelines given below:
• Never use compressed air for cleaning.
• Use water to keep down the dust when cleaning
• If there is danger that there may be asbestos dust in the air, operate the machine from an upwind position
whenever possible.
• Use an approved respirator if necessary .
CRUSHING OR CUTTING PREVENTION
Do not enter, or put your hand or arm or any other part of your body between movable parts such as the work
equipment and cylinders, or between the machine and work equipment.
If the work equipment is operated, the clearance will change and this may lead to serious damage or personel
injury.
If it is necessary to go between movable parts, always lock the levers and be sure that the work equipment
cannot move. For details, see "8. PRECAUTIONS FOR MAINTENANCE".
FIRE EXTINGUISHER AND FIRST AID KIT
Always follow the precautions below to prepare for acton if any injury or fire should occur.
• Be sure that fire extinguishers have been provided and read the labels to ensure that you know how to use
them.
• Provide a first aid kit at the storage point. Carry out periodic checks and add to the contents if necessary.
• Know what to do in the event of a fire or injury.
• Decide which phone numbers of persons (doctor, ambulance, fire station etc.) to contact in case of an
emergency. Post these contact numbers in specified places and make sure that all personnel know the
numbers and correct contact procedures.
PC130/150LGP-6K ENG
1-5
WARNING: for reasons of
safety, always follow these
6 GENERAL PRECAUTIONS
safety precautions.
PROTECTION AGAINST FALLING OR FLYING OBJECTS
If there is any danger of falling or flying objects hitting the operator, install protective guards in place to protect
the operator as required for each particular situation.
• For work with breakers, install a front guard on the windshield. Also, place a laminate coating sheet over the
windshield.
• For demolition of shear workk, install a front guard on the windshield and a top guard on the cab. Also, place
a laminate coating sheet over the windshield.
• For work in mines, quarries, demolition, tunnels or other places where there is danger of falling rocks, put
FOPS (falling object protective structure) in place. Also, place a laminate coating sheet over the windshield.
The above comments are made with regards to typical working conditions. By all means you should put on
other guards if required by conditions at your particular site.
For details of safety guards, please contact your Komatsu distributor.
Also, even for other types of work, if there is any danger of being hit by falling or flying objects or of objects
entering the operator's cab, select and install a guard that matches the working conditions.
Be sure to close the front window before commencing work.
When carrying out the above operations, make sure to keep all persons other than the operator outside that
range of falling or flying objects. Be particularly sure to maintain a proper distance when carrying out shear
operations
1-6
PC130/150LGP-6K ENG
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
6 GENERAL PRECAUTIONS
PRECAUTIONS FOR ATTACHMENTS
• When installing and using an optional attachment, read the instruction manual for the attachment and the
information related to attachments in this manual.
• Do not use attachments that are not authorized by Komatsu or your Komatsu distributor. Use of unauthorized attachments could create a safety problem and adversely affect the proper operation and useful lif of
the machine.
• Any injuries, accidents, product failures resulting from the use of unauthorized attachments will not be the
responsibility of Komatsu.
ERMERGENCY EXIT
• When exit by normal means is prevented in an emergency you can
get out through the emergency exit (rear window).
• Pull the ring at the bottom of the window and remove strip. This will
allow you to push out the glass.
ROT A TING BEACON (OPTION)
• When the machine is operated on or beside a road, a rotating beacon is required to avoid a traffic accident
• Contact your Komatsu distributor to install a beacon lamp.
ELECTROMAGNETIC INTERFERENCE
When this machine is operating close to a source of high electromagnetic interference, such as a radar
station, some abnormal phenomena may be observed.
• The display on the monitor panel may behave erratically
• The warning buzzer may sound
These effects do not signify a malfunction and the machine will return to normal as soon as the source of
interference is removed.
PC130/150LGP-6K ENG
1-7
WARNING: for reasons of
safety, always follow these
6 GENERAL PRECAUTIONS
safety precautions.
VENTILATION FOR ENCLOSED AREAS
Exhaust fumes from the engine can kill.
• If it is necessary to start the engine within an enclosed area, or you handle fuel, flushing oil, or paint, open
the doors and windows to ensure that you provide adequate ventilation to prevent gas poisoning.
• If opening the doors and windows still does not provide adequate ventilation, set up fans.
PRECAUTIONS WITH CAB GLASS
If by mistake the cab glass on the work equipment side should crack, there is danger of direct contact between
the operator's body and the work equipment. This is extremely dangerous.
If the glass is cracked, stop operations immediately and replace the glass.
1-8
PC130/150LGP-6K ENG
7. PRECAUTIONS DURING
OPERATION
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
7.1 BEFORE STARTING ENGINE
SAFETY A T WORKSITE
• Before starting operations, thoroughly ckeck the area for any unusual conditions that could be dangerous.
• Check the terrain and condition of the ground at the worksite, and determine the best and safest method of
operation.
• Make the ground surface as hard and horizontal as possible before carrying out operations.
If the jobsite is dusty , spray water before starting operations.
• If you need to operate on a road, protect pedestrians and cars by designating a person for worksite traffic
duty or by installing fences and putting up NO ENTRY signs around the worksite.
• If water lines, gas lines, or high-voltage electrical lines may be buried under the worksite, contact each utility
and identify their locations. Be careful not to sever of damage any of these lines.
• Check the ground condition and the depth and flow of water before operating in water or crossing a river.
NEVER be in water which is in excess of the permissible water depth.
Permissible water depth see "12.12 PRECAUTIONS FOR OPERATION"
CHECKS BEFORE STARTING ENGINE
Carry out the following checks before starting the engine at the beginning of the days work.
Failure to carry out these checks may lead to serious injury or damage.
• Completely remove all flammable materials accumulated around the engine and battery, returm all fuel
containers to teir propeer place, remove all parts and tools from the operator's compartment, and remove
any dirt from the mirrors, handrails, and steps.
Walk-around checks see "12.1.1 WALK AROUND CHECK".
• check the coolant level, fuel level, and oil level in the hydraulic tank, check for clogging of the air cleaner, and
check the electric wiring.
Checks before starting see "12.1.2 CHECK BEFORE STARTING"
• Adjust the operator's seat to a positions where it is easy to carry out operations, and check for wear or
damage to the seat belt and seat belt mounting equipment.
Adjusting operator's seat see "12.1.3 ADJUSTING BEFORE STARTING OPERATION".
• Check that the gauges work properly, and check that the control levers are all at the NEUTRAL position.
Method of checking operation of gauges
see "12.1.4 OPERATIONS AND CHECKS BEFORE STARTING ENGINE".
• If any of the mirrors are broken, replace them with new ones.
• When removing and installing the mirrors for replacement or transportation - see "13.3 PRECAUTIONS
FOR TRANSPORT ATION".
• Check that the mirrors and window glass provide a clear view.
If the above inspections show any abnormality, carry out repairs immediately.
PC130/150LGP-6K ENG
1-9
WARNING: for reasons of
safety, always follow these
7. PRECAUTIONS DURING OPERA TION
safety precautions.
WHEN ST ARTING ENGINE
• Walk around your machine again just before mounting it, and check for people and objects that might be in
the way .
• Never start the engine if a warning tag has been attached to the work equipment control lever.
• When starting the engine, sound the horn as an alert.
• Start and operate the machine only while seated.
• An additional worker may ride in the machine only when sitting in the passenger seat, if fitted. Do not allow
anyone to ride on the machine body .
• Do not short circuit the starting motor circuit to start the engine. It is not only dangerous, but will also cause
damage to the equipment.
1-10
PC130/150LGP-6K ENG
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
7. PRECAUTIONS DURING OPERA TION
7.2 AFTER STARTING ENGINE
CHECKS AFTER STARTING ENGINE
Failure to carry out the checks properly after starting the engine will lead to delays in discovery of abnormalities, and this may lead to serious injury or damage to the machine.
When carrying out the checks, use a wide area where there are no obstructions. Do not allow anyone near the
machine.
• Check the operation of the gauges and equipment, and check the operation of the blade, ripper, brakes,
travel system, and steering system.
• Checks for any abnormality in the sound of the machine, vibration, heat, smell, or gauges; check also that
there is no leakage of air, oil, or fuel.
• If any abnormality is found, carry out repair immediately.
If the machine is used when it is not in proper condition, it may lead to serious injury or damage to the
machine.
PRECAUTIONS WHEN ST ARTING OFF
Check the direction of the track frame before operating the travel lever.
• When the sprocket is at the front, the operaton of the travel lever is
reversed, so operate the machine carefully .
Method of steering machine see "12.4 MOVING MACHINE
OFF".
Before moving the machine off, check again that there are no persons or obstacles in the surrounding area.
• When moving the machine off, sound the horn to warn people in the
surrounding area.
• Always sit in the operator's seat when driving the machine.
• Always close the door of the operator' cab and check that the door is
locked in position securely .
CHECK WHEN CHANGING DIRECTION
To prevent serious injury or death, always do the following before moving the machine or doing the levelling
work.
• Before changing between forward and reverse, reduce speed and stop the machine.
• Before operating the machine, sound the horn to warn people in the area.
• Check that there is no one near the machine. Be particularly careful to check behind the machine.
• When operating in areas that may be hazardous or have poor visibility , designate a person to direct worksite
traffic.
• Ensure that no unauthorized person can come within the direction of turning or direction of travel.
Always be sure to carry out the above precautions even when the machine is equipped with a backup alarm
and mirrors.
PC130/150LGP-6K ENG
1-11
WARNING: for reasons of
safety, always follow these
7. PRECAUTIONS DURING OPERA TION
safety precautions.
PRECAUTIONS WHEN TRA VELLING
• Never turn the key in the starting switch to the OFF position when travelling.
It is dangerous if the engine stops when the machine is travelling, because it becomes impossible to operate
the steering.
• It is dangerous to look around you when operating. Always concentrate on your work.
• It is dangerous to drive too fast, or to start suddenly, stop suddenly, turn sharply or zigzag.
• If you find any abnormality in the machine during operation (noise, vibration, smell, incorrect gauges, air
leakage, oil leakage, etc.) move the machine immediately to a safe place and look for the cause.
• Set the work equipment to a height of 40 - 50 cm from the ground level and travel on level ground.
• When travelling do not operate the work equipment control levers. If the work equipment control levers have
to be operated, never operate them suddenly .
• Do not operate the steering suddenly. The work equipment may hit the ground surface and cause the machine to lose its balance, or may damage the machine or structures in the area.
• When travelling on rough ground, travel at low speed, and avoid sudden changes in direction.
• Avoid travelling over obstacles as far as possible. If the machine has to travel over an obstacle, keep the
work equipment as close to the ground as possible and travel at low speed. Never travel over obstacles
which make the machine tilt strongly (10° or more).
• When travelling or carrying out operations, always keep your distance from other machines or structures to
avoid coming into contact with them.
• NEVER be in water which is in excess of the permissible water depth.
Permissible water depth see "12.12 PRECAUTIONS FOR OPERATON".
• When passing over bridges or structures on private land, check first that the structure is strong enough to
support the mass of the machine. When travelling on public roads, check first with the relevant authorities
and follow their instructions.
1-12
PC130/150LGP-6K ENG
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
7. PRECAUTIONS DURING OPERA TION
TRAVELLING ON SLOPES
• Travelling on slopes could result in the machine tipping over or slipping to the side.
• When travelling on slopes, keep the blade approximately 20 - 30 cm above the ground. In case of emergency, quickly lower the bucket to the ground to help the machine to stop.
• Do not turn on slopes or travel across slopes. Always go down to a flat place to perform these operations.
Method of travelling on slopes See "12.13 PRECAUTIONS WHEN TRA VELLING UP OR
DOWN HILLS".
• Do not travel on grass, fallen leaves or wet steel plates. Even slight slopes may cause the machine to slip to
the side, so travel at low speed and make sure that the machine is always travelling directly up or down the
slope.
• If the engine stops on a slope, place the travel lever at the neutral position and lower the bucket to the
ground. Do not operate the steering. There is danger that the machine will turn under its own weight.
PROHIBITED OPERA TIONS
• Do not dig the work face under an overhang. This may cause the overhang to collapse and fall on top of the
machine.
• Do not carry out deep digging under the front of the machine. The ground under the machine may collapse
and cause the machine to fall. Take emergencies into consideration and set with the travel motor at the rear
and the track (undercarriage) at right angles to the road shoulder before digging to enable the machine to
move back quickly . If the ground under the machine collapses and there is no time to drive in reverse, do not
suddenly raise the arm and boom. In some cases, it may in fact be safer to lower the arm and boom.
• Do not swing the work equipment to the side when it is carrying a heavy load. The stability to the side is less
than the stability to the front, so there is danger that the machine may turn over.
• Limits on use.
To prevent accidents caused by breakage of the work equipment or tipping over of the machine under
excessive load, do not use the machine in excess of its capacity . Always be sure to keep within the maximum
specified load and safe angle determined for the structure.
PC130/150LGP-6K ENG
1-13
WARNING: for reasons of
safety, always follow these
7. PRECAUTIONS DURING OPERA TION
safety precautions.
PRECAUTIONS WHEN OPERA TING
• Be careful not to approach too close to the edge of cliffs.
• Carry out only work that is specified as the purpose of the machine.
Carrying out other operations will cause breakdowns.
Specified operations See "WORK POSSIBLE USING HYDRAULIC EXCAVATOR".
• Do the following to ensure good visibility.
• When operating in dark places, turn on the working lamps and front lamps, and install lighting at the job
site if necessary.
• Do not carry out operations in fog, mist, snow or heavy rain or other conditions where the visibility is
poor. Wait for the weather to clear so that visibility is sufficient to carry out work.
• Always do as follows to prevent the work equipment from hitting other objects.
• When operating in tunnels, under bridges, under electric wires, or other places where the height is
limited, be extremely careful not to let the bucket, boom, or arm hit anything.
• To prevent accidents caused by hitting other objects, always operate the machine at a speed which is
safe for operation, particularly in confined spaces, indoors, and in places where there are other machines.
• Never pass the bucket over the head of any worker or over the operator's cab on a dump truck.
1-14
PC130/150LGP-6K ENG
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
7. PRECAUTIONS DURING OPERA TION
DO NOT GO CLOSE TO HIGH-VOL TAGE CABLES
• Do not let the machine touch overhead electric cables. Even going close to high-voltage cables can cause
electric shock. Always maintain the safe distance given below between the machine and the elctric cable.
• To prevent accidents, always do as follows.
• On job sites where there is danger that the machine may touck the electric cables, consult the electricity
company before starting operations to check that the actions determined by the relevant laws and
regulations have been taken.
• Wear rubber shoes and gloves. Lay a rubber sheet on top of the operator's seat, and be careful not to
touch the chassis with any exposed part of your body.
• Use a signalman to give worning if the machine approaches too close to the electric cables.
• If the work equipment should touch the electric cable,the operator should not leave the operator's com-
partment.
• when carrying out operations near high voltage cables, do not let anyone come close to the machine.
• Check with the electricity company about the voltage of the cables before starting operations.
egatloVecnatsidytefas.niM
V002•001m2
Low
voltage
V006.6m2
V000.22m3
V000.66m4
V000.451m5
V000.781m6
Very high voltage
V000.572m7
V000.005m11
OPERA TE CAREFULLY ON SNOW
• When working ons now or icy roads, even a slight slope may cause the machine to slip to the side, so always
travel at low speed and avoid sudden starting, stopping, or turning. There is danger of slipping particularly on
uphill or downhill slopes.
• With frozen road surfaces, the ground becomes soft when the temperature rises, so the travel conditions
become unstable. In such cases be extremely careful when travelling.
• When there has been heavy snow, the road shoulder and objects placed beside the road are buried in the
snow and cannot be seen, so always carry out operations carefully.
When travelling on snow-covered slopes, never apply the brakes suddenly . Reduce the speed and use the
engine as a brake while applying the foot brake intermittently (depress the brake intermittently several
times). If necessary , lower the bucket to the ground to stop the machine.
• The load varies greatly according to the characteristics of the snow, so adjust the load accordingly and be
careful not to let the machine slip.
PC130/150LGP-6K ENG
1-15
WARNING: for reasons of
safety, always follow these
7. PRECAUTIONS DURING OPERA TION
safety precautions.
WORKING ON LOOSE GROUND
• Do not operate the machine on soft ground. It is difficult to get the machine out again.
• Avoid operating your machine too close to the edge of cliffs, overhangs, and deep ditches. If these areas
collapse under the mass or vibration of your machine it could fall or tip over and this could result in serious
injury or death. Remember that the soil after heavy rain, blasting or earthquakes is weakened in these areas.
• Earth laid on the ground and the soil near ditches is loose. It can collapse under the mass or vibration of your
machine and cause your machine to tip over.
• Install the head guard (FOPS) when working in areas where there is danger of falling stones.
• Install the ROPS and wear the seat belt when working in areas where there is danger of falling rocks or of the
machine turning over.
PRECAUTIONS WHEN WORKING ON SLOPES
• When working on slopes, there is danger that the machine may lose its balance and turn over when the
swing or work equipment are operated. Always carry out these operations carefully.
• Do not swing the work equipment from the uphill side to the downhill side when the bucket is loaded. This
operation is dangerous.
• If the machine has te be used on a slope, pile the soil to make a platform that will keep the machine as
horizontal as possible.
Piled soil on slope See "12.13 PRECAUTIONS WHEN TRAVELLING UP OR DOWN HILLS".
1-16
PC130/150LGP-6K ENG
WARNING: Failure to follow
these safety precautions may
lead to a serious accident.
7. PRECAUTIONS DURING OPERA TION
P ARKING MACHINE
• Park the machine on level ground where there is no danger of falling rocks or landslides, or of flooding if the
land is low, and lower the work equipment to the ground.
• If it is necessary to park the machine on a slope, set blocks under the tracks to prevent the machine from
moving, then dig the work equipment into the ground.
• After stopping the engine, operate the right work equipment control lever several times to the RAISE and
LOWER positions te release the remaining pressure in the hydraulic circuit.
• When parking on public roads, provide fences, signs, flags or lights and put up any other necessary signs to
ensure that passing traffic can see the machine clearly , and park the machine so that the machine, flags and
fences do not obstruct traffic.
Parking procedure See "12.17 PARKING MACHINE".
• When leaving the machine, set the safety lock lever 햲 to the LOCK position, stop the engine, and use the
key to lock all the equipment. Always remove the key and take it with you.
Work equipment posture See 12.17 PARKING MACHINE".
Locks See "12.21 LOCKING".
• Always close the door of the operator's compartment.
PRECAUTIONS IN COLD AREAS
• After completing operations, remove all water, snow, or mud stuck to the wiring harness, connector 햲,
switches, or sensors, and cover these parts.
If the water freezes, it will cause malfunctions of the machine when it is next used, which may lead to
unexpected accidents.
• Carry out the warming-up operation thoroughly. If the machine is not thoroughly warmed up before the
control levers are operated, the reaction of the machine will be slow, and this may lead to unexpected
accidents.
• Operate the control levers to relieve the hydraulic pressure (raise to above the set pressure for the hydraulic
circuit and release the oil to the hydraulic tank) to warm up the oil in the hydraulic circuit. This ensures good
response from the machine and prevents malfunctions.
• If the battery electrolyte is frozen, do not charge the battery of start the engine with a different power source.
There is danger that this will ignite the battery.
When charging or starting the engine with a different power source, melt the battery electrolyte and check
for leakage of battery electrolyte before starting.
Battery charge rate See "COLD WEA THER OPERATION".
PC130/150LGP-6K ENG
1-17
WARNING: for reasons of
safety, always follow these
7. PRECAUTIONS DURING OPERA TION
safety precautions.
7.3 TRANSPORTATION
LOADING AND UNLOADING
• Loading and unloading the machine always involves potential hazards. EXTREME CAUTION SHOULD BE
USED.
When loading or unloading the machine, run the engine at low idling and travel at low speed.
• Perform loading and unloading on firm, level ground only . Maintain a safe distance from the edge of a road.
• ALWAYS block the wheels of the hauling vehicle and place blocks under both ramps before loading and
unloading.
• ALWAYS use ramps of adequate strenght. Be sure the ramps are wide and long enough to provide a safe
loading slope.
• Be sure that the ramps are securely positioned and fastened, and that the two sides are at the same level as
one another.
• Be sure the ramp surface is clean and free of grease, oil, ice and loose materials. Remove dirt from the
machine tracks.
• NEVER correct your steering on the ramps. If necessary drive away from the ramps and climb again.
• Swing the upper structure with extreme care on the trailer to avoid a possible accident caused by body
instability.
. After loading, block the machine tracks and secure the machine with tie-downs.
Loading and unloading See "13 TRANSPORT A TION"
Tie-downs See "13 TRANSPORTATION"
SHIPPING
• When shipping the machine on a hauling vehicle, obey all state and local laws governing the weight, width,
and length of a load. Also obey all applicable traffic regulations.
• Determine the shipping route while taking into account the width, height and weight of the load.
1-18
PC130/150LGP-6K ENG
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