Komatsu PC130-6K, PC150LGP-6K Service Manual

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UEAM000602

Operation & Maintenance Manual

PC130 PC150LGP

HYDRAULIC EXCAVATOR

SERIAL NUMBER

PC130-6K - K30001 PC150LGP-6K - K35001

and up

-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.

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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

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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.

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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

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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

SERIALNo.

MANUFACT.YEAR

MASS

ENGINEPOWER

ProductIdentificationNumber

MANUFACTURER

ManufacturedbyKomatsuUKLtd. forKomatsuLtd.,Tokyo,Japan

205-00-K1291

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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

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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

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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

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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

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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.

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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).

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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

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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.

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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.

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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.

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WARNING: for reasons of safety, always follow these

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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.

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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.

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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.

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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.

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V002•001m2

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V000.22m3 V000.66m4

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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.

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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".

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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".

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WARNING: for reasons of safety, always follow these

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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.

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7. PRECAUTIONS DURING OPERA TION

7.4 BATTERY

BA TTERY HAZARD PREVENTION

Battery electrolyte contains sulphuric acid, and batteries generate hydrogen gas, so mistaken handling can lead to serious injury or fire. For this reason, always observe the following precautions.

• Never bring any lighted cigarette or flama near the battery.

• When working with batteries, ALWAYS war safety glasses and rubber gloves.

• If you spill acid on your clothes or skin, immediately flush the area with large amounts of water.

• Battery acid could cause blindness if splashed into the eyes. If acid gets into your eyes flush them immediately with large quantities of water and see a doctor at once.

• If you accidentally drink electrolyte, drink a large quantity of water or milk, beaten egg or vegetable oil. Call a doctor or poison prevention center immediately .

• Before working with batteries, stop the engine and turn the starting switch to the OFF position.

• Avoid short-circuiting the battery terminals (between the positive + terminal and negative - terminal) through accidental contact with metal objects such as tools.

• When installing the battery , connect the positive + terminal first, and when removing the battery , disconnect the negative - terminal (ground side) first.

• When removing or installing, check which is the positive + terminal and negative - terminal, and tighten the nuts securely . If the battery electrolyte is near the LOWER LEVEL, add distilled water. Do not add distilled water above the UPPER LEVEL.

• When cleaning the top surface of the battery, wipe it with a damp cloth. Never use gasoline, thinner or any other organic solvent or cleaning agent.

• Tighten the battery caps securely.

• Always remove the battery from the chassis before charging it

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WARNING: for reasons of safety, always follow these

7. PRECAUTIONS DURING OPERA TION

safety precautions.

ST ARTING WITH BOOSTER CABLES

If any mistake is made in the method of connecting the booster cables, it may cause a fire, so always do as follows.

• Carry out the starting operation with two workers (with one worker sitting in the operator's seat).

• When starting from another machine, do not allow the two machines to touch.

• When connecting the booster cables, turn the starting switch OFF for both the normal machine and problem machine.

• Be sure to connect the positive + cable first when installing the booster cables. Disconnect the ground or negative - cable first when removing them.

• The final ground connection is the connection of the ground to the engine block of the problem machine. However, this will cause sparks, so be sure to connect it as far as possible from the battery.

Starting procedure when using booster cables  See "16.5 IF BATTERY IS DISCHARGED".

• When removing the booster cables, be careful not to let the booster cable clips touch each other or to let the clips touch the machine.

INCORRECT

CHARGING BA TTERY

If the battery is handled incorrectly when it is being charged, there is danger that the battery may explode, so follow the instructions in HANDLING BATTERY and in the instruction manual for the charger, and always observe the following precautions.

• Carry out the charging in a well-ventilated place, and remove the battery caps. This disperses the hydrogen gas and prevents explosion.

• Set the voltage on the cherger to match the voltage on the battery to be charged. If the voltage setting is wrong, it will cause the charger to overheat and catch fire, and this may lead to an explosion. Connect the positive + charging clip off the charger to the positive + terminal of the battery, then connect the negative - charging clip tot the negative - terminal of the battery. Be sure to tighten both terminals securely.

• If the battery charge is less than 1/10 of the rated charge, and high speed charging is carried out, set to a value below the rated capacity of the battery . If there is an excessive flow of charging current, it may cause leakage or evaporation of the electrolyte, which may catch fire and explode.

INCORRECT

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7. PRECAUTIONS DURING OPERA TION

7.5 TOWING

WHEN TOWING

• Injury or death could result if a disabled machine is towed incorrectly or if there is a mistake in the selection of the wire rope, so always do as follows.

• Do not tow in a different way from the method given in the section "16.2 METHOD OF TOWING MACHINE".

• Always wear leather gloves when handling wire rope.

• When carrying out the preparation for towing with another worker, agree on signals before starting the operation.

• If the engine on the problem machine will not start of there is a failure in the brake system, please contact your Komatsu distributor for repairs.

• It is dangerous to tow a machine on a slope, so choose a place where there is a gradual slope. If there is no place with a gradual slope, carry out work to make the slope as small as possible.

• If a problem machine is towed by another machine, ALWAYS use a wire rope with a suf ficient towing capacity for the weight of the problem machine.

• Do not uwe a wire rope which has cut strands 훽, kinks 훾, or reduced diameter 훿.

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WARNING: for reasons of safety, always follow these

7. PRECAUTIONS DURING OPERA TION

safety precautions.

7.6 BUCKET WITH HOOK

PRECAUTIONS WHEN INST ALLING, OPERATING BUCKET WITH HOOK

Using a hydraulic excavator to raise loads is permitted under the following special conditions. These conditions must be followed strictly .

• The specified hook must be installed to the bucket. For details, please consult your Komatsu distributor.

• When the special hook is installed, additional checks before starting and periodic checks, toghether with recording and storing of the periodic checks are required.

• When carrying out operations with a lifted load, set the machine on firm flat ground in a safe place and install the wire securely to the lifting hook.

• Lifting work is prohibited except for the main purpose. Never raise or lower people in this way .

• Do not allow anyonde inside the operating radius.

• When carrying out lifting work, determine the method and order of operations and signals to be used. Appoint a leader and follow his directions.

• Wear leather gloves when handling the wire rope. Use only wire rope which fulfils the specified standards.

• Run the engine at low speed when carrying out the lifting work.

• Do not leave the operator's seat when the load is raised.

• It is dangerous to use the work equipment to pull loads in or to the side or to carry out work that exceeds the capacity of the work equipment. Do not carry out such operations.

• Do not travel with a raised load.

• Depending on the operating posture of the work equipment, there is danger that the wire rope or ring may slip from the hook, so always pay attention to the angle of the hook to prevent the wire or ring from coming off.

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8. PRECAUTIONS FOR MAINTENANCE

WARNING: Failure to follow these safety precautions may lead to a serious accident.

8.1 BEFORE CARRYING OUT MAINTENANCE

NOTIFICA TION OF F AILURE

Carrying out maintenance not described in the Komatsu operation and maintenance manual may lead to unexpected failures. Please contact your Komatsu distributor for repairs.

WARNING T AG

• AL W AYS attach the "DO NOT OPERATE" warning tag to the work equipment control lever in the operator's cab to alert others that you are working on the machine. Attach additional warning tags around the machine if necessary.

• If others start the engine, or touch or operate the work equipment controle lever while you are performing service or maintenance, you could suffer serious injury or death.

• These tags are available from your Komatsu distributor (Part no. 20E-00-K1340)

CLEAN BEFORE INSPECTION AND MAINTENANCE

• Clean the machine before carrying out inspection and maintenance. This will ensure that dirt does not get into the machine and will also ensure that maintenance can be carried out safely.

• If inspection and maintenance are carried out with the machine still direty , ti will be difficult to find the location of problems, and there is also the danger that you will get dirty or mud in your eyes, and that you will slip and injure yourself.

• When washing the machine, always do as follows.

• Wear non-slip shoes to prevent yourself from slipping on the wet surface.

• When using high-pressure steam to wash the machine, always wear protective clothing. This will protect

you from being hit by high-pressure water, and cutting your skin or getting mud or dust into your eyes.

• Do not spray water directly on to the electrical system (sensors, connectors) 햲. If water gets into the

electrical system, there is danger that it will cause defective operation and malfunction.

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WARNING: for reasons of safety, always follow these

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safety precautions.

KEEP WORK PLACE CLEAN AND TIDY

Do not leave hammers or other tools lying around inthe work place. Wipe up all grease, oil, or other substances that will cause you to slip. Always keep the work place clean and tidy to enable you to carry out operations safely . If the work place is not kept clean and tidy , there is danger that you will trip, slip or fall over and injure yourself.

APPOINT LEADER WHEN WORKING WITH OTHERS

When repairing the machine or when removing and installing the work equipment, appoint a leader and follow his instructions during the operation. When working with others, misunderstanding between workers can lead to serious accidents.

RADIA TOR W A TER LEVEL

• When inspecting the radiator water level, stop the engine and wait for the engine and radiator to cool down. Check the water level in the sub-tank. Under normal conditions, do not open the radiator cap.

• If there is no sub-tank, or the radiator cap must be removed, always do as follows.

• Wait for the radiator water temperature to go down before checking the water level. (When checking if the water temperature has gone down, put your hand near the engine or radiator and check the air temperature. Be careful not to touch the radiator or the engine).

• Release the internal pressure before removing the radiator cap, and remove the radiator cap slowly .

STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE

• When carrying out inspection and maintenance, park the machine on level ground where there is no danger of falling rocks or land slides, or of flooding if the land is low, then lower the work equipment to the ground and stop the engine.

• Operate the right work equipment control lever several times to the RAISE and LOWER positions to release the remaining pressure in the hydraulic circuit, then set safety lock lever 햲 to the LOCK position.

• Put blocks under the track to prevent the machine from moving.

• The worker carrying out the maintenance should be extremely careful not to touch or get caught in the moving parts.

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8. PRECAUTIONS FOR MAINTENANCE

SAFETY DEVICES FOR WORK EQUIPMENT

When carrying out inspection and maintenance with the work equipment raised, fit stand (2) securely to the boom to prevent the work equipment from coming down. Place the work equipment control levers at HOLD, and set safety lock lever 햲 to the LOCK position.

PROPER TOOLS

Use only tools suited to the task. Using damaged, low quality, faulty or makeshift tools could cause personal injury. Broken pieces of chisels or hammers could fly into your eyes and blind you.

Tools  See "21.1 INTRODUCTION OF NECESSAR Y T OOLS".

PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS

Hoses and other parts of the fuel, hydraulic and brake system are critical parts for ensuring safety, so they must be replaced periodically . Replacement of safety critical parts requires skill, so please ask your Komatsu distributor to carry out replacement.

• Replace these components periodically with new ones, regardless of whether or not they appear to be defective. These components deteriorate over time, and can cause fire because of oil leakage or failure in the work equipment system.

• Replace or repair any such components if any defect is found, even though they have not reached the time specified

Replacement of safety critical parts  See 22. PERIODIC REPLACEMENT OF SAFETY CRITICAL P ARTS".

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safety precautions.

USE OF LIGHTING

• When checking fuel, oil, or battery electrolyte, always use lighting with anti-explosion specifications. If such lighting equipment is not used, there is danger of explosion.

• If work is carried out in dark places without installing lighting, there is danger of injury, so always install proper lighting.

• Even if it is dark, do not use a lighter or flame instead of lighting. There is danger of starting a fire and if the battery gas ignites it may cause an explosion.

• When using the machine as the power supply for the lighting, follow the instructions in this Operation and Maintenance Manual.

PREVENTION OF FIRE

There is danger of the fuel and battery gas catching fire during maintenance, so always follow the precautions below when carrying out maintenance.

• Store fuel, oil, grease and other flammable materials away from flame.

• Use non-flammable materials as the flushing oil for cleaning parts. Do not use diesel oil or gasoline. There is danger that they will catch fire.

• Never smoke when carrying out inspection or maintenance. Always smoke in the prescribed place.

• When checking fuel, oil, or battery electrolyte, always use lighting with anti-explosion specifications. Never use lighters of matches as lighting.

• When carrying out grinding or welding operations on the chassis, remove any inflammable materials to a safe place.

• Be sure that a fire extinguisher is present at the inspection and maintenance point.

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8. PRECAUTIONS FOR MAINTENANCE

8.2 DURING MAINTENANCE

PERSONNEL

Only authorized personnel can service and repair the machine. Do not allow unauthorized personnel into the area. If necessary employ an observer. Extra precaution should be used when grinding, welding and using a sledge-hammer.

ATTACHMENTS

• Appoint a leader before starting removal or installation operations for attachments.

• Do not allow anyone other than the workers close to the machine or attachment.

• Place attachments that have been removed from the machine in a safe place so that they do not fall. Put a fence around the attachments and set up No Entry signs to prevent unauthorized persons from coming close.

WORK UNDER THE MACHINE

• Stop the machine on firm, level ground and always lower all work equipment to the ground before performing service or repairs under the machine.

• Always block the track shoes securely .

• It is extremely dangerous to work under the machine if the track shoes are off the ground and the machine is supported only by the work equipment. Never work under the machine if the machine is poorly supported.

WORK ON TOP OF THE MACHINE

• When carrying out maintenance on top of the machine, make sure that the footholds are clean and free of obstructions, and follow the precautions below to prevent yourself from falling.

• Do not spill oil or grease.

• Do not leave tools lying around.

• Mind your step when you are walking.

• Never jump down from the machine. When getting on or off the machine, always use the steps and handrails, and maintain three-point contact (both feet and one hand or both hands and one foot) at all times.

• Use protective equipment if necessary.

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WARNING: for reasons of safety, always follow these

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safety precautions.

LOCKING INSPECTION COVERS

When carrying out maintenance with the inspecton cover open, lock it securely with a lock bar. If maintenance is carried out with the inspection cover open and not locked in position, it may close suddenly if knocked or blown by the wind, and may cause injury to the operator.

MAINTENANCE WITH THE ENGINE RUNNING

To prevent injury, do not carry out maintenance with the engine running. If maintenance must be carried out with the engine running, carry out the operation with at least two workers and do as follows.

• One worker must always sit in the operator's seat and be ready to stop the engine at any time. All workers must maintain contact with the other workers.

• When carrying out operations near rotating parts there is danger of being caught in the parts, so be extremely careful.

• When cleaning inside the radiator, set safety lock lever 햲 to the LOCK position to prevent the work equipment from moving.

• Do not touch any control levers. If any control lever must be operated, always give a signal to the other workers to warn them to move to a safe place.

• Never touch the fan blade or fan belt with any tool or any part of your body . There is danger of serious injury.

DO NOT DROP TOOLS OR PARTS INSIDE MACHINE

• When opening the inspection window or tank oil filler to carry out inspection, be careful not to drop any nuts, bolts, or tools inside the machine. If such parts are dropped into the machine, it will cause breakage of the machine, mistaken operation and other failures. If you drop any part into the machine, always be sure to remove it from the machine.

• When carrying out inspection, do not carry any unnecessary tools or parts in your pocket.

PRECAUTIONS WHEN USING HAMMER

When using a hammer, always wear safety glasses, safety helmet, and other protective clothing, and put a brass bar between the hammer and the part being hammered. If hard metal parts such as pins, edges, teeth, or bearings are hit with a hammer, there is danger that broken pieces might fly into your eyes and cause injury.

1-28

PC130/150LGP-6K ENG

WARNING: Failure to follow these safety precautions may lead to a serious accident.

8. PRECAUTIONS FOR MAINTENANCE

REP AIR WELDING

Welding operations must always be carried out by a qualified welder and in a place equipped with a proper equipment. Gas is generated and there is danger of fire or electrocution when carrying out welding, so never allow any unqualified personnel to carry out welding. The qualified welder must follow the precautions given below.

• Disconnect the battery terminals to prevent explosion of the battery.

• Remove the paint from the place being welded to prevent gas from being generated.

• If hydraulic equipment or piping, or places close to these are heated, flammable vapor of spray will be generated and there is danger of this catching fire, so avoid applying heat to such places.

• If heat is applied directly to rubber hoses or piping under pressure, they may suddenly burst, so cover them with fireproof sheeting.

• Always wear protective clothing.

• Ensure that there is good ventilation.

• Clear up any flammable materials, and make sure that there is a fire extinguisher at the workplace.

PRECAUTIONS WITH BA TTERY.

When repairing the electrical system or when carrying out electrical welding, remove the negative - terminal of the battery to stop the flow of current.

Handling battery  See "16.6 IF BATTERY IS DISCHARGED".

WHEN ABNORMALITY IS LOCATED

• If any abnormality is found during inspection, always carry out repairs. In particular, if the machine is used when there is any abnormality in the brakes or work equipment systems, it may lead to serious accidents.

• Depending on the type of failure, please contact your Komatsu distributor for repairs.

RULES TO FOLLOW WHEN ADDING FUEL OR OIL

If any flame is brought close to fuel or oil, there is danger that it will catch fire, so always follow the precautions below.

• Stop the engine when adding fuel or oil.

• Do not smoke.

• Spilled fuel and oil may cause you to slip, so always wipe it up immediately .

• Always tighten the cap of the fuel and oil fillers securely .

• Always add fuel and oil in a well-ventilated place.

PC130/150LGP-6K ENG

1-29

WARNING: for reasons of safety, always follow these

8. PRECAUTIONS FOR MAINTENANCE

safety precautions.

PRECAUTIONS WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION

• Grease is pumped into the track tension adjustment system under high pressure. If the specified procedure for maintenance is not followed when making adjustment, valve 햲 may fly out and cause damage or personal injury.

• When loosening grease drain valve 햲 never loosen it more than one turn.

• Never put your face, hands, feet or any other part of your body directly in front of any grease drain valve.

Adjusting track tension  See 24.2 WHEN REQUIRED".

HANDLING HIGH PRESSURE HOSES

• If oil or fuel leaks from high-pressure hoses, it may cause fire or defective operation, which may lead to personal injury or damage. If any damaged hoses or loose bolts are found, stop work and contact your Komatsu distributor for repairs.

• Replacing high-pressure hoses requires a high level of skill, and the torque is determined according to the type of hose and size, so please do not carry out replacement yourself. Ask your Komatsu distributor to carry out replacement.

PRECAUTIONS WITH HIGH-PRESSURE OIL

When inspecting or replacing high-pressure piping or hoses, always check that the pressure in the hydraulic circuit has been released. If the circuit is still under pressure, it will lead to serious injury or damage, so always do as follows.

• For details of the method of releasing the pressure - see "8.1 BEFORE CARRYING OUT MAINTENANCE, STOP ENGINE BEFORE CARR YING OUT INSPECTION AND MAINTENANCE". Never carry out inspection or replacement before releasing the pressure completely .

• Wear safety glasses and leather gloves.

• If there is any leakage from the piping or hoses, the piping, hoses and the surrounding area will be wet, so check for cracks in the piping and hoses and for swelling in the hoses. If it is difficult to locate the leakage, always please contact your Komatsu distributor for repairs.

• If you are hit by a jet of high-pressure oil, consult a doctor immediately for medical attention.

1-30

INCORRECT

CORRECT

PC130/150LGP-6K ENG

WARNING: Failure to follow these safety precautions may lead to a serious accident.

8. PRECAUTIONS FOR MAINTENANCE

PRECAUTIONS WHEN CARRYING OUT MAINTENANCE AT HIGH TEMPERATURE

Immediately after stopping operations, the engine coolant, oil at all parts, the exhaust manifold, and the muffler are at high temperature. In this condition, if the cap is removed, or the oil is drained,or the filters are replaced, this may result in burns or other injuries. Wait for the temperature to go down, then carry out the inspection and maintenance in accordance with the procedures given in this manual.

Cleaning inside of cooling system  See "24.2 WHEN REQUIRED". Checking coolant level, oil level in hydraulic tank  See "24.3 CHECK BEFORE STARTING". Checking lubricating oil level, adding oil  See 24.3-7 PERIODIC MAINTENANCE". Changing oil, replacing filters  See 24.5-10 "PERIODIC MAINTENANCE".

CHECKS AFTER INSPECTION AND MAINTENANCE

Failure to carry out inspection and maintenance fully, or failure to check the functions of various maintenance locations may cause unexpected problems and may even lead to personal injury or damage, so always do as follows.

• Checks when engine is stopped

• Have all the inspection and maintenance locations been checked?

• Have all the inspection and maintenance items been carried out correctly?

• Have any tools or parts dropped into the machine? It is particularly dangerous if they get caught in the lever linkage.

• Has water and oil leakage been repaired? Have bolts been tightened?

• Checks when engine is running For details of checks when the engine is running - See 8.2 DURING MAINTENANCE, MAINTENANCE WITH ENGINE RUNNING", and be extremely careful to ensure safety .

• Do the inspection and maintenance locations work normally?

• Is there any oil leakage when the engine speed is raised and load is applied to the hydraulic system?

WASTE MATERIALS

To prevent pollution, particularly in places where people or animals are living, always follow the procedures given below.

• Never dump waste oil in a sewer system, rivers etc.

• Always put oil drained from your machine in containers. Never drain oil directly onto the ground.

• Obey appropriate laws and regulations when disposing of harmful objects such as oil, fuel, coolant, solvent, filters and batteries.

INCORRECT

PC130/150LGP-6K ENG

1-31

9. POSITION FOR ATTACHING SAFETY LABELS

Always keep these labels clean. If they are lost or damaged, attach them again or replace them with a new

label.

There are other labels in addition to the safety labels listed as follows, so handle them in the same way . Safety labels are available from your Komatsu distributor.

POSITION FOR ATTACHING SAFETY LABELS

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PC130/150LGP-6K ENG

1. Warnings for operation, inspection and maintenance

1. 20E-00-K1170

9. POSITION FOR ATTACHING SAFETY LABELS

• Improper operation and maintenance can cause serious injury or death

• Read the manual and labels before operation and maintenance. Follow instructions and warnings in manual and in labels on machine.

• Keep the manual in machine cab near operator. If this manual is lost, please contact your Komatsu distributor for a replacement.

• Always apply lock when leaving operator's seat.

2. 20E-00-K1230 Warnings when opening front window

• When raising window, lock it in place with lock pins on both sides.

• Falling window can cause injury.

3. 20Y-00-K2220

• Emergency exit

• Read operation manual before operation

PC130/150LGP-6K ENG

1-33

9. POSITION FOR ATTACHING SAFETY LABELS

4. 20E-00-K1130

WARNING No passengers. No passengers allowed to ride on machine while it is moving.

WARNING - DANGER OF FALLING OBJECTS Do not operate where a danger of falling objects exists. Consult your dealer for fitting of FOPS protection.

HAZARDOUS Voltage hazard Serious injury or death can occur if machine or attachments are not kept safe distance away from electric lines.

6. 20E-00-K1150

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.

5. 20E-00-K1280

Pump control override switch and swing lock override switch. Read operation manual before operation.

7. 20E-00-K1140

1-34

PC130/150LGP-6K ENG

9. POSITION FOR ATTACHING SAFETY LABELS

8. 20E-00-K1310

• Improper operation and maintenance can cause serious injury or death

• Read the manual and labels before operation and maintenance. Follow instructions and warnings in manual and in labels on machine.

• Keep the manual in machine cab near operator. If this manual is lost, please contact your Komatsu distributor for a replacement.

10. 20E-00-K1110

• Warning for falling from upper structure.

• Keep away from sides of machine.

• Keep off counterweight.

• Do not ride on machine when it is moving.

9. 20E-00-K1190 Warning for high temperature 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.

PC130/150LGP-6K ENG

1-35

9.1LIFTING CAP ACITIES

One piece boom.

Arm lengths as stated. When removing bucket, linkage or cylinder lifting capacities can be increased by their

respective weights.

PC130-6K

4600

3.0m

PC130-6k

2.5m

2.1m

XAMm0.7m0.6m5.4m0.3m5.1

m0.60051• 0051• 0532• 0522 m5.40531• 0531• 001205610572• 0522 m0.30531• 053105020561057200220543• 0543• m5.10541• 05210002055100620502052400330586• 0526 m0.00061• 052100910051005205910593050305970565 m5.1-05710531009105410042058100830092007705450583• 0583• m0.3-051205810042058100830092057700550046• 0046• m5.4-0513• 0542009300030046• 056505201• 05201• m0.60081• 0081• m5.40071• 0071• 008205220513• 0513• m0.30071• 055105020561057200220593• 05530515• 0515• m5.10081• 05410002008105620012002400330587• 0516 m0.0058105410591055105520002009300030557• 0075 m5.1-050200810052059100930003009700650044• 0044• m0.3-0062050205830592059700750067• 0067• m5.4-0033• 0033• 0045• 0045• m0.60522• 0522• 0533• 0533• m5.40502• 0002057200220053• 0053• m0.30502• 0071007205120034• 05430095• 0095• m5.10002055100020061006205020514052305380006 m0.00002006100520002059305030086• 0565 m5.1-052200810052059100930003009700650574• 0574• m0.3-05920532009300030047• 05750088• 0088• m5.4-

1-36

PC130/150LGP-6K ENG

9.1 LIFTING CAPACITIES

One piece boom.

Arm lengths as stated. When removing bucket, linkage or cylinder lifting capacities can be increased by their

respective weights.

PC150LGP-6K

PC130/150LGP-6K ENG

1-37

9.1 LIFTING CAPACITIES

OVERLOAD CAUTION

This machine is equipped with an overload caution system which give a visual warning (on monitor) and an audible warning when lifting a load close to the lift capacity of the machine. For operation of this system refer to section 12.22

A decal inside the operator's cab shows the loads at which the caution warning is given for various work equipment positions.

Due to the simple nature of this system the overload warning is given at a lower load than actually allowable (see full lift capacity charts on previous page).

If lifting to the full capacity of the machine is required it is necessary to fit a full overload caution system (with work equipment position sensing) to the machine.

Decal showing lifting loads at overload warning.

PC130-6K

1-38

m0.6m5.4m0.3

m5.40590501 m0.3051105410522 m5.1053100810503 m0.0053105810533

PC130/150LGP-6K ENG

9.1 LIFTING CAPACITIES

PC130/150LGP-6K ENG

1-39

MEMO

1-40

PC130/150LGP-6K ENG

OPERATION

PC130/150LGP-6K ENG

2-1

10.GENERAL VIEW

10.1 GENERAL VIEW OF MACHINE

If directions are indicated in this section, they refer to the directions shown by the arrows in the diagram below.

2-2

PC130/150LGP-6K ENG

10.2 GENERAL VIEW OF CONTROLS AND GAUGES

10. GENERAL VIEW

PC130/150LGP-6K ENG

2-3

11.EXPLANATION OF COMPONENTS

The following is an explanation of the devices neede for operating the machine.

To carry out suitable operations correctly and safely, it is important to understand fully the methods of operating the equipment and the meaning of the displays.

11.1 MACHINE MONITOR

A. BASIC CHECK ITEMS (11.1.1)

This displays the basic items that should be checked before starting the engine.

If there is any abnormality, the appropriate monitor lamp will flash.

NOTICE

When carrying out checks before starting, do not simply rely on the monitor. Always refer to the periodic maintenance items or "12. OPERATION" to carry out the checks.

2-4

PC130/150LGP-6K ENG

B. CAUTION ITEMS (11.1.2)

CAUTION

If these monitor items flash, check and repair the appropriate location as soon as possible.

These are items which need to be observed while the engine is running. If any abnormality occurs, items which need to be repaired as soon as possible are displayed.

If there is any abnormality, the appropriate monitor lamp will flash to indicate the location of the abnormality.

C. EMERGENCY STOP ITEMS (11.1.3)

CAUTION

If these monitor items flash stop operations immediately, then check and repair the appropriate location.

These are items which need to be observed while the engine is running. If any abnormality occurs, items which need to be repaired immediately are displayed.

Ifthere is any abnormality, the appropriate monitor lamp will flash to indicate the location of the abnormality and the buzzer will sound.

1 1. EXPLANATION OF COMPONENTS

D. METER DISPLAY PORTION (11.1.4)

This portion consists of pre-heating monitor, swing lock monitor, engine water temperature gauge, fuel gauge and display.

E. SWITCHES (11.1.5)

The switches are used for setting clock time and for selecting working mode, active mode and travel speed.

PC130/150LGP-6K ENG

2-5

1 1. EXPLANATION OF COMPONENTS

11.1.1 A: BASIC CHECK ITEMS

NOTICE

Do not rely on the "BASIC CHECK ITEMS" only for the check

before starting.

Always refer to the periodic maintenance items or "12. OPERA-

TION" to carry out the checks.

1. RADIA TOR W A TER LEVEL

This warns that the radiator cooling water level is too low. If the monitor lamp flashes, check the cooling water level in the radia-

tor and reserve tank and add water.

2. ENGINE OIL LEVEL

This warns that the oil level in the engine oil pan is too low. If the monitor lamp flashes, check the oil level in the engine oil pan,

and add oil.

2-6

PC130/150LGP-6K ENG

3. REPLACEMENT OF ENGINE OIL (or only set machines)

If the set time (125, 250, 500H) passes after the engine oil is re-

placed, this lamp lights up. At this time, replace the engine oil.

11.1.2 B: CAUTION ITEMS

CAUTION

If the caution monitor lamp flashes, repair the problem as soon as possible.

1. CHARGE LEVEL

This monitor indicates an abnormality in the charging system while

the engine is running.

If the monitor lamp flashes, check the V-belt tension. If any abnor-

mality is found, see "16.7 OTHER TROUBLE"

1 1. EXPLANATION OF COMPONENTS

REMARK

While the starting switch is ON, the lamp will remain lit and will go off

once the engine is started.

2. FUEL LEVEL

If the fuel drops below 25 liters the lamp will flash. Top up the fuel

before this.

3. AIR CLEANER CLOGGING

This warns that the air cleaner is clogged. If the monitor lamp flashes, stop the engine then inspect and clean

the air cleaner.

PC130/150LGP-6K ENG

2-7

1 1. EXPLANATION OF COMPONENTS

4. OVERLOAD CAUTION (When lifting)

This warns that the machine is close to tipping due to the load (an audible warning is also given), if the warning is given lower the load. Refer to the lifting capacity chart for safe load.

This function is operated by an additional switch positioned in the tool case. Refer to section 12.22.

11.1.3 C: EMERGENCY STOP ITEMS

CAUTION

If any monitor lamp flashes, stop the engine or run it at low idling and take the following action.

1. ENGINE WA TER TEMPERA TURE

If the temperature of the engine cooling water becomes abnormally high, the monitor lamp flashes and the overheat prevention system is automatically actuated to reduce the engine speed.

Stop operations and run the engine at low idling until the engine water temperature gauge enters the green range.

2. RADIA TOR W A TER LEVEL

If the radiator water level drops, the monitor lamp flashes. Stop the engine, check the radiator water level and add water if necessary .

3. ENGINE OIL PRESSURE

If the engine oil pressure drops below the normal pressure, the monitor lamp flashes. At this item, stop the engine and inspect it according to "16.7 OTHER TROUBLE".

REMARK

While the starting switch is ON, the lamp remains lit and goes off once the engine is started. When the engine starts the buzzer may sound for a short time, however, this does not indicate a fault.

2-8

PC130/150LGP-6K ENG

1 1. EXPLANATION OF COMPONENTS

11.1.4 D: METER DISPLA Y PORTION

PILOT DISPLA Y

When the starting switch is ON, the pilot display lights up when the

display items are functioning.

1. ENGINE PRE-HEA TING MONIT OR

This monitor lamp indicates the pre-heating time required when

starting the engine at an ambient temperature below 0°C.

The monitor lamp lights when the starting switch is turned to HEAT position and flashes after about 30 seconds to show that the pre-heating is completed. (The monitor lamp will go off after about 10 seconds).

2. SWING LOCK MONITOR

This informs the operator that the swing lock is being actuated.

Actuated: Lights up

When the swing lock switch is turned ON (ACTUATED), the monitor lamp lights up.

When the swing lock override switch is turned on, this monitor lamp flashes.

REMARK

A disc brake is installed in the swing motor to mechanically stop motor rotation.

The brake is always applied while the swing lock is actuated.

PC130/150LGP-6K ENG

2-9

1 1. EXPLANATION OF COMPONENTS

METERS

3. ENGINE WA TER TEMPERATURE GAUGE

This gauge indicates the engine cooling water temperature. If the temperature is normal during operation, the green range will

light up.

If the red range lights up during operation, the overheat prevention

system will be actuated. The overheat prevention system acts as follows.

Red range  lights up:

Engine water temperature monitor  flashes

Red range  lights up:

Engine speed is lowered further to low idling, engine water temperature monitor  flashes and alarm buzzer sounds at the same time.

The overheat prevention system is actuated until the temperature

enters the green range.

When red range  lights, if the engine water temperature is reduced andthe fuel control dial is turned to the low idling position, the display wil be cancelled.

4. FUEL GAUGE

This gauge indicates the amount of fuel in the fuel tank.

If the fuel level is normal during operation, the green range will light up.

If only the red range lights up during operation there is less than 25 liters of fuel remaining in the tank so check and add fuel.

After the starting switch is turned ON, the correct level may not be displayed for a moment, but this does not indicate any abnormality.

When stopping the engine turn the starting switch ON and check that the monitor lamps on items A, B, C and D and the meters light up.

5. DISPLAY

This normally displays the clock time. If any error occurs, it indicates error information while the starting switch is ON.

2-10

PC130/150LGP-6K ENG

Manual setting

1. When the time is displayed depress clock switch  for 2.5 sec or more.

2. " " flashes.

3. Pressing H switch  increases hours and pressing M switch  in- creases minutes. If switch  or  is pressed for 2.5 seconds or more, hours or minutes increase continuously.

4. When the correct time is reached, press clock switch . This completes clock setting.

Correct time setting

1. When the time is displayed, depress the clock switch for 2.5 sec or more.

2. " " flashes.

3. When SET switch  is pressed, the hour is rounded off for 0 to 14 minutes and rounded up for 45 to 59 minutes. (Examples) 10:14 becomes 10:00 (rounded off)

10:45 becomes 11:00 (rounded up) When SET switch  is pressed at the time signal or standard clock, the correct time is obtained.

4. When the correct time is reached, press clock switch . This completes clock setting.

11. EXPLANATION OF COMPONENTS

If the machine has a fault, error information appears while the start-

ing switch is ON. The monitor flashes and displays all error informations sequentially.

Monitor indications Error mode

E02 TVC valve system error E03 Swing brake system error E05 Governor system error

CALL Non-operating error

If any of these monitors flash, see "16.7.4 ELECTRONIC CONTROL

SYSTEM".

6. SERVICE METER

This meter shows the total operation hours of the machine. Set the periodic maintenance intervals using this display. The service meter advances while the engine is running - even if the

machine is not travelling.

The meter will advance by 1 for each hour of operation regardless of

the engine speed.

PC130/150LGP-6K ENG

2-11

1 1. EXPLANATION OF COMPONENTS

11.1.5 E: SWITCHES

1. WORKING MODE SELECTOR SWITCH (Basic switch)

This switch is used to set the movement of power for the work euipment. By selecting the mode to match the working conditions, it is possible to carry out operations more easily. H.O. (heavy-duty operation mode) lights up:

This is used for heavy-duty work. G.O. (general operation mode)lights up:

This is used for ordinary work. F.O. (finishing operation mode) lights up:

This is used for levelling or grading work. L.O. (lifting operation mode) lights up:

This is used for fine control operations. B.O. (breaker operation mode) lights up:

This is used for breaker work.

When starting the engine, G.O. (general operation) mode is automatically selected. Each time the switch is pressed, the mode selection changes.

NOTICE

When the breaker is used, never select the H.O. (heavy-duty operation) mode.

REMARK

H switch is also used for setting "hours" in the clock and M switch for setting "minutes". See 11.1.4-5 DISPLAY.

2-12

PC130/150LGP-6K ENG

2. AUTO-DECELERA TION SWITCH (Selection switch)

This switch acts to activate the function that automatically lowers the engine speed and reduces fuel consumption when the control lever is at neutral. ON lights up: Auto-deceleration is actuated Off: Auto-deceleration is cancelled

Each time the switch is pressed, the auto-deceleration is actuated or cancelled.

3. TRAVEL SPEED SWITCH

1 1. EXPLANATION OF COMPONENTS

WARNING

If the Hi-Lo switch is operated when the machine is travelling, the machine may deviate even when travelling in a straight line. To prevent this, always stop the machine before operating the travel speed switch.

This is used to select the three travel speeds. Lo lights up: Low speed travel Mi lights up: Mid range speed travel Hi lights up: High speed travel

When the engine is started, the travel speed is automatically st to Lo. When travelling in Hi, the travel speed is automatically switched to middle

speed travel (Mi) to match the travel surface on soft ground or when travelling uphill, so there is no need to operate this switch. The monitor indication keeps lamp Hi lighted.

PC130/150LGP-6K ENG

2-13

1 1. EXPLANATION OF COMPONENTS

4. POWER MAX./SWIFT SLOW-DOWN SWITCH

During operations, the digging power can be increased and the speed reduced by a one-touch operation of the knob button (single click while pushing).

Power max. (power up) lights up: When the working mode is heavy-duty and general operation modeonly, the power can be increased approx. 30% (genral operation mode) and the set pressure can be increased approx. 9% (heavy-duty operation mode and general operatonmode) while the knob button is being pressed. Even if the knob button continues to be pressed, the increase in power finishes after approx. 8.5 sec.

Swift slow-down (speed down) lights up: When the working mode is heavy-duty operation and general operation mode only, the speed is reduced approx. 35% for heavy-duty operation mode and approx. 25% for general operation mode, and the set pressure is increased approx. 9% for heavy-duty operation mode and general operation mode.

When the engine is strated, the power max. lamp lights up. Each time the set switch is pressed, the mode is switched.

5. ACTIVE MODE SWITCH (SELECTOR SWITCH)

The active mode is effective for quick levelling operations of deep digging and loading operations.

ON lights up: Active mode ON ON goes out: Active mode cancelled

The ON lamp is off when the engine is started.

If it is turned ON (lights up), ti is possible to enter the active mode from any working mode.

Even when it is turned ON (lights up), the working mode display does not change. When the lamp goes out, the system returns to the original working mode.

NOTICE

When using the breaker, do not set to the active mode.

2-14

PC130/150LGP-6K ENG

11.2 SWITCHES

1 1. EXPLANATION OF COMPONENTS

1. ST ARTING SWITCH

This switch is used to start or stop the engine.

OFF position

The key can be inserted or withdrawn. Except for the cab lamp, radio (if fitted) and clock, the switches for the electric system are all turned off and the engine is stopped.

ON position

Electric current flows in the charging and lamp circuits.

Keep the starting switch key at the ON position while the engine is running.

START position

This is the engine-start position. Keep the key at this position during cranking. Immediately after starting the engine, release the key which will automatically return to the ON position.

HEA T (preheat) position

When starting the engine in winter, set the key to this position. When the key is set to the HEAT position, the pre-heating monitor lights up. Keep the key at this position until the monitor lamp goes off. Immediately after the pre-heating monitor goes off, release the key. The key automatically returns to the OFF position. Then, start the engine by turning the key to the ST AR T position.

PC130/150LGP-6K ENG

2-15

1 1. EXPLANATION OF COMPONENTS

2. FUEL CONTROL DIAL (WITH AUTO-DECELERA TION MECHANISM)

This adjusts the engine speed and output.

 Low idling (MIN): Turned fully to the left  Full speed (MAX): Turned fully to the right

3. CIGARETTE LIGHTER

This is used to light cigarettes. To use, push the lighter in. After a few

seconds it will spring back.

Pull out the lighter and light your cigarett. Nothing may be connected to the cigarette lighter without the prior

persmission of an authorised Komatsu distributor.

4. SWING LOCK SWITCH

WARNING

• When the machine is travelling under its own power, or when the swing is not being operated, always set the switch to the ON (ACTUA TED) position.

• On a slope, the work equipment may swing to the down side even if the swing lock switch is located at the ON position. Be careful concerning this point.

This switch is used to lock the upper structure so that it cannot swing.

ON position (actuated):

The swing lock is always applied, and the upper structure will not

swing even if the swing is operated. In this condition, the swing lock lamp lights up. OFF position (cancelled):

The swing lock is applied only when the swing control lever is at neu-

tral; when the swing control lever is operated it is cancelled.

The swing lock is actuated approx. 4 seconds after the swing lever is

placed in neutral.

5. WIPER SWITCH

This switch actuates the front window wiper.

 OFF: the wiper stops  ON: the wiper moves continuously  Window washer fluid is sprayed out: when the switch is released, it

returns to .

 ON: the wiper moves intermittently .  Window washer fluid is sprayed out: when the switch is released, it

returns to .

2-16

PC130/150LGP-6K ENG

6. LAMP SWITCH

This switch turns on the working lamps and monitor illumination

 OFF  Standard work lamps  Standard and additional work lamps (if fitted)

7. ALARM BUZZER STOP SWITCH

This is used to stop the alarm buzzer when it has sounded to warn of some abnormality in the EMERGENCY STOP ITEMS while the engine is running.

8. CAR HEA TER FAN SWITCH

This adjusts air-flow in 2 steps. Hi: strong Lo: weak OFF: car heater turned off.

1 1. EXPLANATION OF COMPONENTS

9. HORN BUTTON

When the button at the tip of the right work equipment control lever is pressed, the horn will sound.

10. KNOB BUTTON

The button at the tip of the left work equipment control lever is used to actuate the power max./swift slow-down functions. Press the button once (single click) and keep it depressed. In the heavy-duty and general operation modes the power max. function actuates for max. 8.5 seconds and the swift slow-down function actuates while the button is depressed.

11. HEATED OPERA TION SEAT SWITCH (if fitted)

This switch is used to switch on the heated seat. OFF: seat not heated ON: seat heated

PC130/150LGP-6K ENG

2-17

1 1. EXPLANATION OF COMPONENTS

12. ADDITIONAL LAMP SWITCH

This switch is provided to turn on an additional lamp on the cab front

top. Setting to OFF turns the switch off.

13. CAB LAMP SWITCH

This lights up the cab lamp.

ON position: lights up.

The cab lamp can be turned on even when the starting switch is at

the OFF position, so be careful not to leave it on by mistake.

14. PUMP CONTROL OVERRIDE SWITCH

When normal: Switch is down

When abnormal: When the monitor display shows E02 (TVC valve system error), it is possible to carry out operation when this switch is moved up. The pump control override switch is designed to allow operations to be carried out for a short period when there is an abnormality in the pump control system (TVC valve system error). The abnormality must be repaired immediately.

15. SWING LOCK OVERRIDE SWITCH

When normal: switch is down

When abnormal: when the monitor display shows E03 (swing brake system error), the brake is cancelled and it becomes possible to swing the upper structure when this switch is moved up, so normal operations can be carried out. However, the swing brake remains cancelled.

The swing lock override switch is designed to allow operations to be carried out for a short period when there is an abnormality in the swing brake electrical system (swing brake system error). The abnormality must be repaired immediately.

2-18

PC130/150LGP-6K ENG

11.3 CONTROL LEVERS, PEDALS

1 1. EXPLANATION OF COMPONENTS

1. SAFETY LOCK LEVER WARNING

• When leaving the operator's compartment, set the safety lock lever securely to the LOCK position. If the control levers are not locked, and they are touched by mistake, this may lead to a serious accident. If the safety lock lever is not placed securely in the LOCK position, the control levers may not be properly locked. Check that the situation is as shown in the diagram.

• When the safety lock lever is raised, take care not to touch the work equipment control lever. If the safety lock lever is not properly locked at the upper position, the work equipment and swing will move, creating a potentially dangerous situation.

• When the safety lock lever is lowered, take care not to touch the work equipment control lever.

This lever locks the work equipment, swing, travel and attachment

controls.

This lock lever is a hydraulic lock, so even if it is in the lock position,

the work equipment control lever and travel lever will move, but the work equipment, travel motor and swing motor will not work.

PC130/150LGP-6K ENG

2-19

1 1. EXPLANATION OF COMPONENTS

2. TRA VEL LEVERS (WITH PEDAL, AUTO DECELERATION MECHANISM)

WARNING

• Do not put your foot on the pedal unless the machine is travelling. If you leave your foot on the pedal and press it by mistake, the machine will move suddenly, and this may lead to a serious accident.

• With the track frame facing to the rear, the machine will move in the reverse direction by forward travelling and in the forward direction by reverse travelling. When the travel lever is used, check to see if the track frame is facing forward or backward. (If the sprocket is located to the rear, the track frame is facing forward).

 FORWARD:

The lever is pushed forward (the pedal is angled forward)

 REVERSE:

The lever is pulled back (The pedal is angled back)

N (Neutral): The machine stops ( ): This indicates operation of the pedal.

2-20

PC130/150LGP-6K ENG

3. LEFT WORK EQUIPMENT CONTROL LEVER (with auto deceleration device)

WARNING

If any lever is operated when in the deceleration range, the engine speed will suddenly increase, so be careful when operating the levers.

This lever is used to operate the arm and upper structure.

Arm operation Swing operation

 Arm OUT  Swing to the right  Arm IN  Swing to the left

N (Neutral)

When the lever is in this position, the upper structure and the arm will

be retained in the position in which they stop.

4. RIGHT WORK EQUIPMENT CONTROL LEVER (with auto-deceleration device)

1 1. EXPLANATION OF COMPONENTS

WARNING

If any lever is operated when in the deceleration range, the engine speed will suddenly increase, so be careful when operating the levers.

This lever is used to operate the boom and bucket

Boom operation Bucket operation

 RAISE  DUMP  LOWER  CURL

N (Neutral)

When the lever is in this position, the boom and the bucket will be

retained in the position in which they stop.

For levers 2, 3 and 4 the engine speed changes as follows because

of the auto-deceleration mechanism.

• When the travel lever and work equipment control levers are at neutral, even if the fuel control dial is above the mid-range postion, the engine speed will drop to a mid-range speed. If any of the levers are operated, the engine speed will rise to the speed set by the fuel control dial.

• If all control levers are set to neutral, the engine speed will drop by approx. 100 rpm, and after approx 4 seconds, the engine speed will drop to the deceleration speed (approx. 1400 rpm).

PC130/150LGP-6K ENG

2-21

1 1. EXPLANATION OF COMPONENTS

5. A TT ACHMENT CONTROL PEDAL WARNING

Do not put your foot on the pedal except when operating the pedal. If resting your foot on the pedal during operation and it is depressed by accident the attachment may move suddenly and cause serious damage or injury.

When breaker is installed

• When the front part of the pedal is depressed, the breaker is actu-

ated.

• Screw lock pin into hol in pedal to lock (Pedal is disabled. Unscrew

completely to unlock).

• Set the working mode to the breaker (B.O.) and unlock pedal.

When general attachment is installed:

• When the pedal is depressed, the attachment is actuated.

• Unlock the pedal to operate

When no attachment is fitted or when attachment operation is not required:

• Lock pedal using lock pin.

2-22

PC130/150LGP-6K ENG

HYDRAULIC OIL FLOW

When the front of the pedal is depressed, the oil flows to the left piping for the work equipment; when the rear of the pedal is depressed the oil flows to the right piping for the work equipment. (When the breaker is installed, only the front pedal is used).

6. BREAKER, GENERAL ATTACHMENT (CRUSHER ETC.) SELEC-

TOR V AL VE

1 1. EXPLANATION OF COMPONENTS

SELECTOR V AL VE

This switches the flow of the hydraulic oil. Position : When breaker is used Position : When general attachment is used (crusher etc.)

PC130/150LGP-6K ENG

2-23

1 1. EXPLANATION OF COMPONENTS

11.4 CEILING WINDOW

WARNING When leaving the operator's compartment, set the safety lock lever securely to the LOCK position. If the control levers are not locked and they are touched by mistake, this may lead to a serious accident.

When opening

1. Lock the safety lock lever securely .

2. Check for any ceiling window movement by pulling lock  located on both sides, then push up and open the ceiling window grasping grip



When closing

Close the ceiling window grasping grip  and lock it with lock . If

the lock cannot be applied, open and close the ceiling window again.

2-24

PC130/150LGP-6K ENG

11.5 FRONT WINDOW

WARNING

When opening the front window, always hold grip  firmly with both hands and pull up. If you use only one hand, your hand may slip and get caught.

It is possible to store (pull up) the front window (top) in the roof of the

operator's compartment.

When opening

1 1. EXPLANATION OF COMPONENTS

WARNING

When the front window is open, there is danger that it will fall, so always lock it with left and right lock pins .

1. Place the work equipment on flat ground and stop the engine.

2. Securely lock the safety lock lever

3. Confirm that the wiper is stored inside the right frame.

4. Pull lock pins  at the top left and right sides of the front window to the inside to release the lock

PC130/150LGP-6K ENG

2-25

1 1. EXPLANATION OF COMPONENTS

5. From the inside of the operator's cab, hold the bottom grip with the left hand and the top grip with the right hand, pull up the window, and push it in fully until it is locked by catch 

6. Lock with lock pins  on the left and right sides.

When closing

WARNING

When closing the window, lower it slowly and be careful not to get your hand caught.

1. Place the work equipment on a flat ground and stop the engine.

2. Securely lock the safety lock lever.

3. Release the lock pin 

4 Hold the grip at the bottom of the front window with your left hand and

the grip at the top with your right hand, release the lock of catch  with your right thumb, then pull the top grip slowly and lower the front window. When releasing the lock of catch , push release lever  in the direction of the arrow to release the lock.

2-26

PC130/150LGP-6K ENG

5. Lock securely with lock pins  at the left and right sides.

Removing front window (bottom)

With the front window open, remove lock pins  and the bottom part

of the front window can be removed.

Store the removed bottom part of the front window at the rear of the

operator's cab and lock with lock pins .

1 1. EXPLANATION OF COMPONENTS

11.6 DOOR LOCK

Use the door lock to fix the door in position after opening it.

1. The door will become fixed in place when it is pressed against catch



2. To release the lock press knob  down at the left side of the opera- tor's seat to release the catch.

When fixing the door, fix it firmly to the catch.

PC130/150LGP-6K ENG

2-27

1 1. EXPLANATION OF COMPONENTS

11.7 CAP, COVER WITH LOCK

The fuel filler, operator's cab, engine hood, battery box cover, right

side door and left side door of the machine body are fitted with locks.

Use the starting switch key to lock or unlock these places.

11.7.1 METHOD OF OPENING AND CLOSING CAP WITH LOCK

To open the cap

1. Insert the key ibnto the cap.

2. Turn the key clockwise, align the match mark on the cap with the rotor

groove, then remove the cap.

T o lock the cap

1. Turn the cap into place.

2. Turn the key and take the key out.

Insert the key as far as it will go. If the key is turned before it is in-

serted all the way it may break.

11.7.2 METHOD OF OPENING AND CLOSING COVER WITH LOCK (cover with lock)

T o open the cover (locked cover)

1. Insert the key .

2. Turn it counterclockwise and open the cover by pulling the cover grip.

T o lock the cover

1. Close the cover and insert the key .

2. Turn the key clockwise and take the key out.

2-28

PC130/150LGP-6K ENG

11.8 LUGGAGE TRA Y

This tray is located to the rear of the operator's seat. Always keep the

operation & maintenance manual in this box for easy reading access.

11.9 ASHTRAY

This is on the side of the operator's seat. Always make sure that you

extinguish the cigarette before closing the lid.

1 1. EXPLANATION OF COMPONENTS

PC130/150LGP-6K ENG

2-29

1 1. EXPLANATION OF COMPONENTS

11.10 CAB HEATER

11.10.1 VIEW OF CONTROLS

The car heater utilizes the water heated by the engine. Use the car

heater when the engine coolant is warmed.

1. CAR HEA TER FAN SWITCH

This adjusts air-flow in 2 steps. Hi: strong Lo: Weak OFF: car heater turned off

2. AIR OUTLET CHANGE-OVER LEVER

The air outlet is selectable according to the purpose.

To upper portion of operator To upper and foot portions of

operator

Lever position

To foot portion of operatorPurpose

2-30

Air outlet

PC130/150LGP-6K ENG

3. DEFROSTER CHANGE-OVER LEVER

This lever is used to eliminate condensation produced in winter or the rainy season etc. Change-over lever forward: defroster Change-over lever backward: to operator's feet Defroster is available when using the air outlet change-over lever in

11.10.2 PREPARING CAR HEATER

If the ambient temperature drops, use the cab heater.

When using the cab heater, turn valve  on the water pump counterclockwise to open it.

When leaving the cab heater unused for a long time, turn valve  clockwise to close it.

1 1. EXPLANATION OF COMPONENTS

REMARK

On machines equipped with the air conditioner system always open valve .

PC130/150LGP-6K ENG

2-31

1 1. EXPLANATION OF COMPONENTS

11.11 CAB RADIO (OPTION)

Refer to the separate operation manual for radio cassette.

Note

Ensure radio is switched off when leaving the machine for long peri-

ods to prevent draining of battery charge.

Antenna

If the reception is weak or generates noise, extend the antenna. If the

reception is too strong, adjust the sensitivity by retracting the antenna.

NOTICE

When transporting the machine or parking it in a garage, always fully

retract the antenna to avoid the possibility of breakage.

11.11.1 PRECAUTION OF USE

• To ensure safe operation, adjust the volume level so that external noise is still audible.

• Ensure no water is splashed over the speaker case or cab radio to prevent malfunction.

• Never use solution such as benzine or thinners to clean the dial or buttons. These should be wiped with a dry, soft cloth. (Use a cloth dipping in alcohol for very dirty surfaces).

• At battery replacement, all the memory pre-set with the pre-set buttons will be cleared. Perform pre-setting again.

2-32

PC130/150LGP-6K ENG

11.12 FUSE

NOTICE

Before replacing a fuse, be sure to turn off the starting switch.

The fuses protect the electrical equipment and wiring from burning

out.

If the fuse becomes corroded, or white powder can be seen, or the

fuse is loose in the fuse holder, replace the fuse.

Replace a fuse with another of the same capacity.

Fuse capacity and name of circuit

1 1. EXPLANATION OF COMPONENTS

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PC130/150LGP-6K ENG

2-33

1 1. EXPLANATION OF COMPONENTS

11.13 FUSIBLE LINK

If the starting motor will not rotate when the starting switch is turned ON, a possible cause is disconnection of wire-type fusible link (1). Open the battery room door on the left side of the machine body to inspect the fusible link and, if necessary, replace it

REMARK

A fusible link refers to the large-sized fuse wiring installed in the high current flow portion of the circuit to protect electrical components and wiring from burning, similarly to an ordinary fuse.

11.14 CONTROLLERS

Governor pump controller is provided

NOTICE

• Never splash or spill water, mud or drink over the controllers as

this may cause a fault.

• If a fault occurs in the controller, do not attempt repair but con-

sult your Komatsu distributor.

11.15 TOOL BOX

This is used for keeping the tools.

11.16 GREASE PUMP HOLDER

This is inside the battery room door on the left side of the machine.

Fit the grease pump to the holder when it is not being used.

2-34

PC130/150LGP-6K ENG

11.17 REFUELLING PUMP (Option)

WARNING

Do not bring fire or sparks near the fuel

1. When the machine is operated on sites with no fuel container and pump, the machine may be refuelled using the refuelling pump  (if fitted) from fuel barrels. The refuelling pump is located in the tool box at the front right hand side of the machine.

2. Place the fuel hose  which is stored in tray  into the fuel barrel placed next to the machine.

3. Switch on refuelling pump using switch  on the pump assembly when adding fuel, never let the fuel overflow. This may cause fires.

NOTES

• This pump is protected by fuse . If pump fails to function check fuse (10 A).

• Ensure strainer on hose end is clean.

1 1. EXPLANATION OF COMPONENTS

PC130/150LGP-6K ENG

2-35

12.OPERATION

12.1 CHECK BEFORE STARTING ENGINE

12.1.1 WALK-AROUND CHECK

WARNING

Leakage of oil or fuel, or accumulation of flammable material around high temperature parts, such as the engine muffler may cause fire. Check carefully, and if any abnormality is found, repair it or contact your Komatsu distributor.

Before starting the engine, look around the machine and under the machine to check for loose nuts or bolts or leakage of oil, fuel or coolant, and check the condition of the work equipment and hydraulic system. Check also for loose wiring, play, and collection of dust at places which reach high temperatures.

Always carry out the items in this section before starting the engine each day.

1. Check for damage, wear, play in work equipment, cylinders, link-

age, hoses.

Check that there are no cracks, excessive wear, or play in the work

equipment, cylinders, linkage, or hoses. If any abnormality is found,

repair it.

2-36

PC130/150LGP-6K ENG

2. Remove dirt and dust from around engine, battery radiator

Check if there is any dirt or dust accumulated around the engine or radiator. Check also is there is any flammable material (dead leaves, twigs, grass etc.) accumulated around the battery or high temperature engine parts, such as the engine muffler or turbocharger. Remove all such dirt or flammable material.

3. Check for leakage of water or oil around engine

Check that there is no leakage of oil from the engine or leakage of water from the cooling system. If any abnormality is found, repair it.

4. Check for oil leakage from hydraulic equipment, hydraulic tank, hoses, joints

Check that there is no oil leakage. If any abnormality is found, repair the place where the oil is leaking.

5. Check the undercarriage (track, sprocket, idler, guard) for damage, wear, loose bolts, or leakage from oil from rollers

6. Check for damage to handrail, loose bolts

Repair any damage and tighten any loose.

12.OPERA TION

7. Check for damage to gauges, monitor, loose bolts

Check that there is no damage to the gauges an monitor in the operator's cab. If any abnormality is found, replace the parts. Clean off any dirt on the surface.

8. Clean rear view mirror, check for damage

Check that there is no damage to the rear view mirror. If it is damaged, replace it with a new mirror. Clean the surface of the mirror and adjust the angle so that the view to the rear can be seen from the operator's seat.

9. Seat belt and mounting clamps

Check that there is no abnormality in the seat belt or mounting clamps. If there is any damage, replace with new parts.

10. Check bucket with hook for damage

Check the hook, catcher and hook foot for damage. If damage is found, contact your Komatsu distributor for repair.

PC130/150LGP-6K ENG

2-37

12.OPERA TION

12.1.2 CHECK BEFORE STARTING

Always carry out the items in this section before starting the engine

each day.

CHECK COOLANT LEVEL, ADD W ATER

WARNING Do not open the radiator cap unless necessary. When checking the coolant, always check the radiator reserve tank when the engine is cold.

1. Open the battery room door on the left side of the machine and check that the cooling water level is between the FULL and LOW marks on radiator reserve tank  (shown in the diagram on the right). If the water level is low, add water through the water filler of reserve tank  to the FULL level.

2. After adding water, tighten the cap securely.

3. If the reserve tank becomes empty, first inspect for water leaks and then fill the radiator and the reserve tank with water.

CHECK OIL LEVEL IN ENGINE OIL PAN, ADD OIL

1. Open the engine hood

2. Remove dipstick  and wipe the oil off with a cloth

3. Insert dipstick  fully in the oil filler pipe, then take it out again.

4. The oil level should be between the H and L marks on dipstick . If the oil level is below L mark, add engine oil through oil filler .

NOTICE

For details of the oil to use, see "20. USE OF FUEL, COOLANT

AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE".

2-38

PC130/150LGP-6K ENG

5. If the oil is above the H mark, drain the excess engine oil from drain valve , and check the oil level again.

6. If the oil level is correct, tighten the oil filler cap securely and close the engine hood.

REMARK

When checking the oil level after the engine has been operated, wait

for at least 15 minutes after stopping the engine before checking.

If the machine is at an angle, make it horizontal before checking.

CHECK FUEL LEVEL ADD FUEL

12.OPERA TION

WARNING

When adding fuel, never let the fuel overflow. This may cause a fire. If spilling fuel, thoroughly clean up any spillage.

1. Open the pump room door on the right side of the machine and use sight gauge  on the rear face of the fuel tank to check that the tank is full.

2. If the fuel level is not within the sight gauge, add fuel through filler port  while watching sight gauge .

Fuel capacity 240 liters

NOTICE

For details of the fuel to use, see "20. USE OF FUEL, COOLANT

AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE".

3. After adding fuel, tighten the cap securely.

REMARK

If breather hole (1) on the cap is clogged, the pressure in the dank

will drop and fuel will not flow.

Clean the hole from time to time.

PC130/150LGP-6K ENG

2-39

12.OPERA TION

CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL

WARNING

• When removing the oil filler cap, oil may spurt out, so turn the cap slowly to release the internal pressure before removing the cap.

• If oil has been added to above the H mark, stop the engine and wait for the hydraulic oil to cool down, then drain the excess oil from the drain plug .

1. If the work equipment is not in the condition shown in the diagram on the right, start the engine, run the engine at low speed, retract the arm and bucket cylinders, then lower the boom, set the bucket teeth in contact with the ground and stop the engine.

2. Open the pump room door on the right side of the machien. Check sight gauge . The oil level is normal if between the H and L marks.

NOTICE

Do not add oil if the level is above the H line. This will damage

the hydraulic equipment and cause the oil to spurt out.

3. If the level is below the L mark, remove the upper cover of the hydraulic tank and add oil through oil filler .

NOTICE

For details of the oil to use, see "20. USE OF FUEL, COOLANT

AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE".

REMARK

The oil level will vary depending upon the oil temperature. Accord-

ingly, use the following as a guide:

• Before operation: around L level (Oil temperature 10 to 30°C)

• Normal operation: around H level (Oil temperature 50 to 80°C)

2-40

PC130/150LGP-6K ENG

CHECK AIR CLEANER FOR CLOGGING

1. Confirm that the air cleaner clogging monitor does not flash.

2. If it flashes, immediately clean or replace the element. For details of the method of cleaning the element, see "24.2.1

CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT"

CHECK ELECTRIC WIRINGS

WARNING

• If the fuse blows frequently, or there are traces of shortcircuiting in the electric wiring, always locate and repair the cause.

• Accumulation of flammable material (dead leaves, twigs, grass etc.) around the battery may cause fire, so always check and remove such material.

• Keep the top surface of the battery clean and check the breather hole in the battery cap. If it is clogged with dirt or dust, wash the battery cap to clear the breather hole.

12.OPERA TION

Check for damage of the fuse and any sign of disconnection or short

circuit in the electric wiring. Check also for loose terminals and tighten any loose parts. Check the following points carefully.

• Battery

• Starting motor

• Alternator Please contact your Komatsu distributor for investigation and correc-

tion of the cause.

When carrying out walk-around checks or checks before starting, al-

ways check if there is any accumulation of flammable material around the battery , and remove such flammable material.

An optional net is prepared to be fitted to the vent of the top outer

cover of the battery to prevent combustible material from entering the battery.

CHECK FOR WATER AND SEDIMENT IN WATER SEPARA T OR, DRAIN WA TER

The water separator separates water mixed in the fuel. If float  is at

or above red line , drain the water according to the following procedure:

1. Loosen drain plug  and drain the accumulated water until the float reaches the bottom.

2. Tighten drain plug .

3. If the air is sucked into fuel line when draining the water, be sure to bleed air in the same manner as for the fuel filter. See "24.7 EVERY 500 HOURS SERVICE".

PC130/150LGP-6K ENG

2-41

12.OPERA TION

CHECK FUNCTION OF HORN

1. Turn the starting switch to the ON position.

2. Confirm that the horn sounds without delay when the horn button is pressed. If the horn does not sound, ask your Komatsu distributor for repair.

2-42

PC130/150LGP-6K ENG

12.1.3 ADJUSTING BEFORE STARTING OPERATION

ADJUSTING OPERA T OR'S SEAT (rigid seat specification)

WARNING

• Adjust the seat position at the beginning of each shift or when operators change.

• Adjust the seat so that the travel pedal can be depressed all the way with the operator's back against the backrest.

 fore-and-aft adjustment of seat

Pull lever  up. After the seat is set to the desired position, release

the lever. Adjustable distance: 100 mm in 5 steps.

 Adjustment of reclining seat

Pull lever  up. After the seat back is set to the optimum position for

easy operation, release the lever.

NOTICE

The amount of reclining for the seat is greatest when the seat is

moved forward, and becomes smaller as the seat is moved to the rear. For this reason, when moving the seat to the rear, set the seat back to the upright position.

12.OPERA TION

Pull lever  up. After the seat back is set to the optimum position for

easy operation, release the lever.

Sit with your back against the seat back when adjusting. If your back

is not touching the seat back, the seat back may suddenly move forward.

 Adjustment of seat tilting angle

1. Forward tilting Pull lever  up to release locking. Adjust the angle at the front of the seat. After the seat is set to the optimum position for easy operation, release the lever and then lock it.

2. Backward tilting Push down lever  to release locking. Adjust the angle at the rear of the seat. After the seat is set to the optimum position for easy operation, release the lever then lock it.

3. Seat height adjustment By a combination of steps 1 and 2, the seat can be moved up and down.

First use the rear tilt operation to adjust the rear of the seat, then use the

front tilt operation to set the seat horizontal.

Adjustable height: 65 mm.

PC130/150LGP-6K ENG

2-43

12.OPERA TION

 Armrest angle adjustment

When armrest  is lifted, locking is applied at each 8° setting. When it is fully sprung up, locking is released. Adjustable armrest angle: 32° (in 4 steps)

REMARK

If the back seat is tilted back and forth without raising armrest  it will spring up automatically .

 Fore-and-aft adjustment of whole seat

After lever  is pulled up and the seat is set to the desired position, release the lever. In this case the operator's seat, left and right levers and safety lock lever will slide together.

Adjustable fore-and-aft movement: 120 mm (4.7 in).

ADJUSTING OPERA T OR'S SEAT (Seat with suspension)

WARNING

• Adjust the seat position at the beginning of each shift or when operators change.

• Adjust the seat so that the travel pedal can be depressed all the way with the operator's back against the backrest.

 Fore-and-aft adjustment of seat

Pull lever  up. After the seat is set to the desired position, release

the lever.

Adjustable distance: 100 mm (3.9 in) in 10 steps.

 Adjustment of reclining seat

NOTICE

The amount of reclining for the seat is greatest when the seat is

moved forward, and becomes smaller as the seat is moved to the rear. For this reason, when moving the seat to the rear, set the seat back to the upright position.

Pull lever  up. After the seat back is set to the optimum position for

easy operation, release the lever.

Sit with your back against the seat back when adjusting. If your back

is not touching the seat back, the seat back may suddenly move forward.

 Adjusting seat tilt

1. Forward tilt Push lever  down and adjust the angle at the front of the seat. (4 stages)

1. To raise the angle at the front of the seat, keep the lever pushed

down and apply your weight to the rear of the seat.

2. To lower the angle at the front of the seat, keep the lever pushed

down and apply your weight to the front of the seat.

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PC130/150LGP-6K ENG

2. Rear tilt Pull lever  up and adjust the angle at the rear of the seat. (4 stages)

1. T o raise the angle at the rear of the seat, keep the lever pulled up

and stand up slightly to remove your weight from the seat.

2. To lower the angle at the rear of the seat, keep the lever pulled

up and apply your weight to the rear of the seat.

Amount of tilt: Up 13°, down 13°

3. Seat height adjustment By a combination of steps 1 and 2, the seat can be moved up and

down. After the desired height is set by forward/backward tilting, bring the seat to the horizontal position by reverse-tilting and fix it.

Adjustable height: 60 mm (2.4 in)

 Adjusting armrest angle

Armrest  can be made to spring up by hand to an angle of approx.

90°.

In addition, by turning the bottom  of the armrest by hand it is pos-

sible to make fine vertical adjustments of the armrest angle.

Armrest adjustment angle: 25°

12.OPERA TION

REMARK

If the back seat is tilted back and forth without raising armrest , it

will spring up automatically.

 Fore-and-af adjustment of whole seat

After lever  is pulled up and the seat is set to the desired position,

release the lever. In this case the operator's seat, left and right levers and safety lock lever will slide together.

Adjustable fore-and-aft movement: 120 mm (4.7 in).

 Suspension adjustment

When knob  is turned clockwise, the suspension becomes harder

and when turned counterclockwise, softer. Adjust the dial so that the suspension best matching the operator's weight is selected.

REMARK

T o obtain the optimum adjustment, turn the knob so that the indicator

of the weight display (kg) in the transparent portion of knob  is the same as the operator's weight.

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12.OPERA TION

ADJUSTMENT OF MONITOR PANEL ANGLE

Turn the monitor panel so that the operator can view the monitor with ease. When adjusting the angle, the panel should be set to the desired position using both hands. The panel is automatically locked at that position.

Amount of adjustment: 30° (stepless)

ADJUSTMENT OF MIRRORS

Loosen nut  of each mirror and adjust the mirror angle at which you can see the reflected view most easily from the operator's seat.

In particular, adjust the mirrors so that you can see persons on both left and right sides of the rear end of the machine.

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12.1.5 OPERATIONS AND CHECKS BEFORE STARTING ENGINE

WARNING

If the control lever is touched by accident, the work equipment or the machine may move suddenly. When leaving the operator's compartment, always set the safety lock lever securely to the LOCK position.

1. Check that safety lock lever  is at the LOCK position.

2. Check the position of each lever.

Set the control lever to the neutral position. When starting the engine, never touch the knob button.

3. Insert the key in starting switch , turn the key to the ON position,

then carry out the following checks.

12.OPERA TION

(1) The buzzer will sound for approx. 1 sec. and the following monitors

and gauges will light up for approx. 3 sec.

• Radiator water level monitor 

• Engine oil level monitor 

• Charge level monitor 

• Fuel level monitor 

• Engine water temperature monitor 

• Engine oil pressure monitor 

• Engine water temperature gauge 

• Fuel gauge 

• Engine pre-heating monitor 

• Air cleaner clogging monitor 

• Swing lock monitor 

• Replacement of engine oil monitor 

If the monitors or gauges do not light up or the buzzer does not sound, there is probably a broken bulb or disconnection in the monitor wiring, so contact your Komatsu distributor for repairs.

After approx. 3 sec. the following gauges will remain on and the other monitors will go out.

• Engine water temperature gauge 

• Fuel gauge 

(2) Press lamp switch  to turn on the head lamps.

If the lamps do not light up, there is probably a broken bulb or discon-

nection in the wiring, so contact your Komatsu distributor for repairs.

PC130/150LGP-6K ENG

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12.OPERA TION

12.2 ST ARTING ENGINE

12.2.1 NORMAL ST ARTING

WARNING

Check that there are no persons or obstacles in the surrounding area, then sound the horn and start the engine.

NOTICE

Do not keep the starting motor rotating continuously for more

than 20 seconds.

If the engine will not start, wait for at least 2 minutes before try-

ing to start the engine again.

1. Set fuel control dial  at the low idling (MIN) position.

2. Turn the key in starting switch  to the START position. The engine will start.

3. When the engine starts, release the key in starting switch . The key will return automatically to the ON position.

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PC130/150LGP-6K ENG

Komatsu PC130-6K, PC150LGP-6K Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual