This document provides disassembly instructions for an engine. It lists 21 steps to disassemble parts like the air cleaner, muffler, turbocharger, exhaust manifolds, water pump, and oil cooler. Safety precautions are provided, such as draining fluids and cleaning parts before disassembly. Weights and removal tools are noted for some components. The instructions are accompanied by diagrams to illustrate the disassembly process.
Komatsu wa380 3 wheel loader service repair manual sn wa380 h20051 and upfhjsjkdmemm
This document provides specifications, dimensions, weights, and other general information for Komatsu WA380-3 wheel loaders. It includes details such as bucket capacities of 3.0-3.3 cubic meters, operating weights of 17,420-17,450 kg, dimensions like a wheelbase of 3.2 meters, and lists of recommended lubricants and torque specifications. Safety guidelines are also provided for proper operation and maintenance of the loaders.
Komatsu 6D125 Diesel Engine Service Repair Manualuejjdksemme
This document provides safety guidelines and instructions for servicing a 6D125 series diesel engine. It begins with general safety precautions that should be followed, such as wearing protective equipment and blocking the machine before working on it. Detailed instructions are given for preparations like cooling the engine first before removing parts. Guidelines are provided for safe hoisting practices when removing heavy components. The document also lists various coating materials and their appropriate applications to use during repairs.
Komatsu WA420-3 Wheel Loader Service Repair Manual SNWA420H20051 and up.pdfemfaqc
This document is the shop manual for Komatsu wheel loaders. It provides safety information and guidelines for proper service and repair. The manual is divided into sections covering general information, structure and function, testing and adjusting, disassembly and assembly, and maintenance standards. Technicians are instructed to carefully follow all safety precautions and use specialty tools as designed by Komatsu when servicing equipment.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdff8usuejkddm3e
This document is a shop manual that provides instructions for servicing and repairing a Komatsu WA380-3 wheel loader. It covers general safety procedures, the structure and function of components, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual is divided into chapters covering these topics and is intended to help technicians safely and properly service the wheel loader.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdffujskekdjdmkm3e
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdff8usejdkdmdm
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdf8ufksjdkdmd
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdfcml64801374
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
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This document provides specifications, dimensions, weights, and other general information for Komatsu WA380-3 wheel loaders. It includes details such as bucket capacities of 3.0-3.3 cubic meters, operating weights of 17,420-17,450 kg, dimensions like a wheelbase of 3.2 meters, and lists of recommended lubricants and torque specifications. Safety guidelines are also provided for proper operation and maintenance of the loaders.
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This document provides safety guidelines and instructions for servicing a 6D125 series diesel engine. It begins with general safety precautions that should be followed, such as wearing protective equipment and blocking the machine before working on it. Detailed instructions are given for preparations like cooling the engine first before removing parts. Guidelines are provided for safe hoisting practices when removing heavy components. The document also lists various coating materials and their appropriate applications to use during repairs.
Komatsu WA420-3 Wheel Loader Service Repair Manual SNWA420H20051 and up.pdfemfaqc
This document is the shop manual for Komatsu wheel loaders. It provides safety information and guidelines for proper service and repair. The manual is divided into sections covering general information, structure and function, testing and adjusting, disassembly and assembly, and maintenance standards. Technicians are instructed to carefully follow all safety precautions and use specialty tools as designed by Komatsu when servicing equipment.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdff8usuejkddm3e
This document is a shop manual that provides instructions for servicing and repairing a Komatsu WA380-3 wheel loader. It covers general safety procedures, the structure and function of components, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual is divided into chapters covering these topics and is intended to help technicians safely and properly service the wheel loader.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdffujskekdjdmkm3e
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdff8usejdkdmdm
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdf8ufksjdkdmd
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdfcml64801374
This document provides specifications, dimensions, weights, and other general information for Komatsu wheel loaders. It includes details like bucket capacities, tipping weights, hydraulic capabilities, and operating weights for different models. Safety guidelines, lubrication requirements, and a torque list are also presented.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdff7isejkddmmd3e
This document is a shop manual that provides instructions for servicing and repairing a Komatsu WA380-3 wheel loader. It covers general safety procedures, the structure and function of components, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual is divided into chapters covering these topics and is intended to help technicians safely and properly service the wheel loader.
Komatsu WA420-3 Wheel Loader Service Repair Manual SN:WA420H20051 and upfujdfjjksekfkem
The document provides specifications for a WA420-3 wheel loader including its dimensions, weights, performance capabilities, and engine details. Key specifications listed are an operating weight of 20,020kg, a 3.6m3 bucket capacity, a maximum travel speed of 39km/h, and that it is powered by a Cummins 6CTA8.3 inline 6-cylinder diesel engine producing 167kW.
Komatsu WA380-3 Wheel Loader Service Repair Manual SN WA380H20051 and up.pdfemfaqc
This document is a shop manual that provides instructions for servicing and repairing a Komatsu WA380-3 wheel loader. It contains sections on general safety procedures, the structure and function of components, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual emphasizes following safety precautions and using specialized Komatsu tools when performing repairs.
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This document is a shop manual for the WA470-3 Wheel Loader that provides instructions on maintenance, repair, testing and safety procedures. It contains sections on general safety practices, the structure and function of components, testing and adjusting procedures, disassembly and assembly steps, and maintenance standards. The manual emphasizes following all safety precautions and using specialized Komatsu tools when servicing equipment. It is intended to help technicians properly service the loader and troubleshoot any issues.
Komatsu wa420 3 wheel loader service repair manual snwa420 h20051 and upofpsdjksemmds
This document is a shop manual that provides safety guidelines and instructions for servicing and repairing a Komatsu WA420-3 wheel loader. It outlines general safety precautions to follow when working on the machine. It also provides an overview of the manual's contents and organization. The manual is divided into sections covering the machine's structure and function, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards.
Komatsu 6 d125 diesel engine service repair manualfujsekfkksemm
This document provides safety instructions and guidelines for servicing and repairing Komatsu 6D125 series diesel engines. It outlines general safety precautions, preparations for work, precautions during work, and symbols used to mark important safety information. Safety is the top priority, and all necessary actions should be taken to deal with any dangerous situations that may arise.
Komatsu 6D125 Diesel Engine Service Repair Manual.pdffusekdmd8uj
This document provides safety guidelines and instructions for servicing a 6D125 series diesel engine. It begins with general safety precautions that should be followed, such as wearing protective equipment and blocking the machine before working on it. It then provides specific instructions for preparations like draining fluids and lowering equipment. Precautions are given for different stages of work like disassembly and assembly. Recommendations are made for hoisting heavy parts safely. Finally, coating materials that may be used during maintenance are defined. The overall document aims to promote safe and proper servicing techniques for this engine model.
Komatsu 6D125 Diesel Engine Service Repair Manual.pdfufjskedkdm8ud
This document provides safety guidelines and instructions for servicing a 6D125 series diesel engine. It begins with general safety precautions that technicians should follow, such as wearing protective equipment and blocking the machine before working on it. The document provides instructions for preparations like cooling fluids before disassembly. It outlines safety measures that should be followed during work, such as supporting heavy components, properly installing hoses and wires, and using specified torque. The document concludes with guidelines for hoisting heavy parts and descriptions of recommended coating materials.
Komatsu 6D125 Diesel Engine Service Repair Manual.pdfufjsekdmdidj3e
This document provides safety guidelines and instructions for servicing a 6D125 series diesel engine. It begins with general safety precautions that technicians should follow, such as wearing protective equipment and blocking the machine before working on it. The document provides instructions for preparations like cooling fluids before disassembly. It outlines safety measures that should be followed during work, such as supporting heavy components, properly installing hoses and wires, and using specified torques. The document concludes with guidelines for hoisting heavy parts and descriptions of recommended coating materials.
Komatsu 6D125 Diesel Engine Service Repair Manual.pdffujsjkdmdm3e4
This document provides safety guidelines and instructions for servicing a 6D125 series diesel engine. It begins with general safety precautions that technicians should follow, such as wearing protective equipment and blocking the machine before working on it. The document provides instructions for specific service tasks, such as removing high-pressure hoses, installing parts, and using lifting equipment. It also lists coating materials and their appropriate applications to use during servicing.
Komatsu 6D125 Diesel Engine Service Repair Manual.pdff7uusejkddkm3e
This document provides safety instructions and guidelines for servicing and repairing Komatsu 6D125 series diesel engines. It emphasizes the importance of safety and outlines general precautions to take which include wearing protective equipment, blocking the machine, and ensuring repairs are done correctly. The document is organized into sections covering the engine's structure and function, testing and adjusting procedures, disassembly and assembly, maintenance standards, and repair of parts.
Komatsu 6D125 Diesel Engine Service Repair Manual.pdffujsjekmd8udidj
This document provides safety guidelines and instructions for servicing a 6D125 series diesel engine. It begins with general safety precautions that technicians should follow, such as wearing protective equipment and blocking the machine before working on it. The document provides instructions for preparations like cooling fluids before disassembly. It outlines safety measures that should be followed during work, such as supporting heavy components, and precautions for installing parts. The document aims to ensure repairs are performed safely and correctly.
Komatsu WA470-3 Wheel Loader Service Repair Manual SN: WA470H20051 and upfusjfjjsekkdmm
This document provides specifications, dimensions, weights, and other technical details for a Komatsu WA470-3 wheel loader. It includes specifications for machines produced up through serial number WA470H20668, as well as later models from serial numbers WA470H20669 through WA470H20941 and machines from serial number WA470H20942 onward. The document provides information on the loader's operating capacity, bucket sizes, ground clearance, and other key technical specifications. Safety guidelines and procedures for maintenance, testing, disassembly and repair are also outlined.
Komatsu wa470 3 wheel loader service repair manual (wa470-3 serial wa470 h200...fjsjjefkskekm
This document is a shop manual for the WA470-3 Wheel Loader that provides instructions and safety precautions for maintenance and repair work. It contains sections on general safety, structure and function of components, testing and adjusting, disassembly and assembly, and maintenance standards. The manual stresses the importance of following safety precautions when working and taking the necessary actions to ensure safety. It provides guidance on preparations for work, precautions during work, and filing the manual pages in the correct order.
Komatsu wa470 3 wheel loader service repair manual (wa470-3 serial wa470 h200...fjkskefkemm
This document provides specifications, dimensions, weights, and other technical details for a Komatsu WA470-3 wheel loader. It includes specifications for machines produced up through serial number WA470H20668, as well as specifications for later models produced from serial number WA470H20669 through WA470H20941 and from serial number WA470H20942 onward. The document also provides information on lubricants, service procedures, and torque specifications for the wheel loader.
Komatsu wa470 3 wheel loader service repair manual sn wa470 h20051 and upjfjskekdhnejd
This document provides specifications, dimensions, weights, and other technical details for Komatsu wheel loaders. It includes specifications for machines up to a certain serial number, including dimensions and weights, performance data, and lists of recommended lubricants and fluids. It also provides an overview of service procedures and diagrams of vehicle controls and gauges.
Komatsu WA420-3 Wheel Loader Service Repair Manual SNWA420H20051 and up.pdff8usuejkddm3e
The document provides specifications for a WA420-3 wheel loader including its dimensions, weights, performance characteristics, and engine details. Key specifications listed include an operating weight of 20,020 kg, a 3.6 cubic meter bucket capacity, maximum travel speeds of 39 km/h in forward and reverse, and an engine model of a Cummins 6CTA8.3 with 167 kW of power.
Kubota BX23D Tractor Parts Catalogue Manual.pdfnii776204
The document provides instructions and part numbers for a parts book. It defines the column headings used on part number pages, including the reference number, part number, description, quantity, serial number range, interchangeability, and remarks. It also notes country codes that may be included to indicate part differences between countries. The summary lists the main component groups and systems covered in the parts book for a BX23D model, including the engine, fuel system, cooling, electrical, frame, transmission, front and rear axles, steering, hydraulics, hood/ROPS, wheels, labels, and accessories.
Kubota BX22D Tractor Parts Catalogue Manual.pdfnii776204
The document provides instructions and part listings for a parts book. It begins with definitions of the column headings used in part number pages, including references numbers, part numbers, descriptions, quantities, serial number ranges and interchangeability. It then lists country codes that may be included for parts that differ by country. The remainder of the document consists of a sample parts listing for an engine (Ref. BX22D), including individual part numbers, descriptions, quantities and other details.
Kubota B7510HSD Tractor Parts Catalogue Manual.pdfnii776204
This document provides instructions and definitions for parts books. It explains that the heading on parts pages will match the picture pages. It defines the column headings for part numbers including reference number, part number, description, quantity, serial number range, interchangeability, and remarks. It notes country codes that may be included.
Kubota B7500D Tractor Parts Catalogue Manual.pdfnii776204
This parts book page provides information for a crankcase part, including:
- The part number, description, quantity used, serial number range compatibility, interchangeability, and remarks for each sub-part.
- Weights for the composite crankcase parts in kilograms and pounds.
- Serial number ranges indicate compatibility for older and newer models.
- Remarks provide additional part information like country exceptions.
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2. 00-2 12V170-2
CONTENTS
No. of page
01 GENERAL ........................................................................................................................... 01-1
11 STRUCTURE AND FUNCTION........................................................................ 11-1
12 TESTING AND ADJUSTING............................................................................... 12-1
13 DISASSEMBLY AND ASSEMBLY................................................................ 13-1
14 MAINTENANCE STANDARD ........................................................................... 14-1
15 REPAIR AND REPLACEMENT OF PARTS ........................................ 15-1
3. SAFETY SAFETY NOTICE
00-3
SAFETY
SAFETY NOTICE
IMPORTANT SAFETY NOTICE
Proper service and repair is extremely important for safe machine operation. The service and
repair techniques recommended by Komatsu and described in this manual are both effective
and safe. Some of these techniques require the use of tools specially designed by Komatsu for
the specific purpose.
To prevent injury to workers, the symbol k is used to mark safety precautions in this manual.
The cautions accompanying these symbols should always be followed carefully. If any danger-
ous situation arises or may possibly arise, first consider safety, and take the necessary actions
to deal with the situation.
GENERAL PRECAUTIONS
Mistakes in operation are extremely dangerous.
Read the Operation and Maintenance Manual care-
fully BEFORE operating the machine.
1. Before carrying out any greasing or repairs, read
all the precautions given on the decals which are
fixed to the machine.
2. When carrying out any operation, always
wear safety shoes and helmet. Do not wear
loose work clothes, or clothes with buttons
missing.
• Always wear safety glasses when hitting
parts with a hammer.
• Always wear safety glasses when grinding
parts with a grinder, etc.
3. If welding repairs are needed, always have a
trained, experienced welder carry out the work.
When carrying out welding work, always wear
welding gloves, apron, hand shield, cap and
other clothes suited for welding work.
4. When carrying out any operation with two or
more workers, always agree on the operating
procedure before starting. Always inform your
fellow workers before starting any step of the
operation. Before starting work, hang UNDER
REPAIR signs on the controls in the operator's
compartment.
5. Keep all tools in good condition and learn the
correct way to use them.
6. Decide a place in the repair workshop to keep
tools and removed parts. Always keep the tools
and parts in their correct places. Always keep
the work area clean and make sure that there is
no dirt or oil on the floor. Smoke only in the areas
provided for smoking. Never smoke while work-
ing.
PREPARATIONS FOR WORK
7. Before adding oil or making any repairs, park the
machine on hard, level ground, and block the
wheels or tracks to prevent the machine from
moving.
8. Before starting work, lower blade, ripper, bucket
or any other work equipment to the ground. If
this is not possible, insert the safety pin or use
blocks to prevent the work equipment from fall-
ing. In addition, be sure to lock all the control
levers and hang warning signs on them.
9. When disassembling or assembling, support the
machine with blocks, jacks or stands before
starting work.
10.Remove all mud and oil from the steps or other
places used to get on and off the machine.
Always use the handrails, ladders or steps when
getting on or off the machine. Never jump on or
off the machine. If it is impossible to use the
handrails, ladders or steps, use a stand to pro-
vide safe footing.
4. SAFETY SAFETY NOTICE
00-4
PRECAUTIONS DURING WORK
11.When removing the oil filler cap, drain plug or
hydraulic pressure measuring plugs, loosen
them slowly to prevent the oil from spurting out.
Before disconnecting or removing components
of the oil, water or air circuits, first remove the
pressure completely from the circuit.
12.The water and oil in the circuits are hot when the
engine is stopped, so be careful not to get
burned.
Wait for the oil and water to cool before carry-
ing out any work on the oil or water circuits.
13.Before starting work, remove the leads from the
battery. Always remove the lead from the nega-
tive (–) terminal first.
14.When raising heavy components, use a hoist or
crane.
Check that the wire rope, chains and hooks are
free from damage.
Always use lifting equipment which has ample
capacity.
Install the lifting equipment at the correct places.
Use a hoist or crane and operate slowly to pre-
vent the component from hitting any other part.
Do not work with any part still raised by the hoist
or crane.
15.When removing covers which are under internal
pressure or under pressure from a spring,
always leave two bolts in position on opposite
sides. Slowly release the pressure, then slowly
loosen the bolts to remove.
16.When removing components, be careful not to
break or damage the wiring. Damaged wiring
may cause electrical fires.
17.When removing piping, stop the fuel or oil from
spilling out. If any fuel or oil drips onto the floor,
wipe it up immediately. Fuel or oil on the floor
can cause you to slip, or can even start fires.
18.As a general rule, do not use gasoline to wash
parts. In particular, use only the minimum of
gasoline when washing electrical parts.
19.Be sure to assemble all parts again in their origi-
nal places.
Replace any damaged parts with new parts.
• When installing hoses and wires, be sure
that they will not be damaged by contact
with other parts when the machine is being
operated.
20.When installing high pressure hoses, make sure
that they are not twisted. Damaged tubes are
dangerous, so be extremely careful when install-
ing tubes for high pressure circuits. Also, check
that connecting parts are correctly installed.
21.When assembling or installing parts, always use
the specified tightening torques. When installing
protective parts such as guards, or parts which
vibrate violently or rotate at high speed, be par-
ticularly careful to check that they are installed
correctly.
22.When aligning two holes, never insert your fin-
gers or hand. Be careful not to get your fingers
caught in a hole.
23.When measuring hydraulic pressure, check that
the measuring tool is correctly assembled before
taking any measurements.
24.Take care when removing or installing the tracks
of track-type machines.
When removing the track, the track separates
suddenly, so never let anyone stand at either
end of the track.
5. FOREWORD GENERAL
00-5
FOREWORD
GENERAL
This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an
accurate understanding of the product and by showing him the correct way to perform repairs and make judge-
ments. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
This shop manual mainly contains the necessary technical information for operations performed in a service
workshop. For ease of understanding, the manual is divided into the following chapters; these chapters are fur-
ther divided into the each main group of components.
STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an under-
standing of the structure, but also serves as reference material for troubleshooting.
In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and mainte-
nance standards.
TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments to
be made at completion of the checks and repairs.
Troubleshooting charts correlating "Problems" with "Causes" are also included in this section.
DISASSEMBLY AND ASSEMBLY
This section explains the procedures for removing, installing, disassembling and assembling each com-
ponent, as well as precautions for them.
MAINTENANCE STANDARD
This section gives the judgment standards for inspection of disassembled parts.
The contents of this section may be described in STRUCTURE AND FUNCTION.
OTHERS
This section mainly gives hydraulic circuit diagrams and electric circuit diagrams.
In addition, this section may give the specifications of attachments and options together.
NOTICE
The specifications contained in this shop manual are subject to change at any time and without any
advance notice. Use the specifications given in the book with the latest date.
6. FOREWORD HOW TO READ THE SHOP MANUAL
00-6
HOW TO READ THE SHOP MANUAL
VOLUMES
Shop manuals are issued as a guide to carrying out
repairs. They are divided as follows:
Chassis volume: Issued for every machine model
Engine volume: Issued for each engine series
Electrical volume:
Attachments volume:
These various volumes are designed to avoid dupli-
cating the same information. Therefore, to deal with
all repairs for any model , it is necessary that chas-
sis, engine, electrical and attachment volumes be
available.
DISTRIBUTION AND UPDATING
Any additions, amendments or other changes will be
sent to KOMATSU distributors. Get the most up-to-
date information before you start any work.
FILING METHOD
1. See the page number on the bottom of the page.
File the pages in correct order.
2. Following examples show how to read the page
number.
Example 1 (Chassis volume):
10 - 3
Item number (10. Structure and
Function)
Consecutive page number for each
item.
Example 2 (Engine volume):
12 - 5
Unit number (1. Engine)
Item number (2. Testing and Adjust-
ing)
Consecutive page number for each
item.
3. Additional pages: Additional pages are indicated
by a hyphen (-) and number after the page
number. File as in the example.
Example:
10-4
10-4-1
10-4-2
10-5
REVISED EDITION MARK
When a manual is revised, an edition mark
((1)(2)(3)....) is recorded on the bottom of the pages.
REVISIONS
Revised pages are shown in the LIST OF REVISED
PAGES next to the CONTENTS page.
SYMBOLS
So that the shop manual can be of ample practical
use, important safety and quality portions are
marked with the following symbols.
Symbol Item Remarks
k Safety
Special safety precautions
are necessary when per-
forming the work.
a Caution
Special technical precau-
tions or other precautions
for preserving standards
are necessary when per-
forming the work.
4 Weight
Weight of parts of sys-
tems. Caution necessary
when selecting hoisting
wire, or when working pos-
ture is important, etc.
3
Tightening
torque
Places that require special
attention for the tightening
torque during assembly.
2 Coat
Places to be coated with
adhesives and lubricants,
etc.
5 Oil, water
Places where oil, water or
fuel must be added, and
the capacity.
6 Drain
Places where oil or water
must be drained, and
quantity to be drained.
}·
Each issued as one
volume to cover all
models
12-203
12-203-1
12-203-2
12-204
Added pages
7. 12V170-2 13-7
DISASSEMBLY AND ASSEMBLY
GENERAL DISASSEMBLY
1. Cleaning
Before disassembling the engine, check its parts
for cracking and damage, and then clean it gen-
erally and carefully with steam for quick disas-
sembly.
1) Before cleaning the engine, remove starting
motor assembly (1), alternator assembly, and
electric wires.
2) Cover every opening of the engine with
tapes.
3) Clean the engine with a cleaning machine.
a In particular, carefully clean each joint
where sand and dirt are accumulated
easily.
2. Setting engine stand
Prepare a stable engine stand and fix the engine
assembly on it so that it will not tip over.
4 Engine assembly: Approx. 6,650 kg
(Weight depends on the model)
3. Coolant and engine oil
Drain the engine coolant and engine oil.
6 Engine oil: Approx. 195 l
4. Air cleaner and muffler assembly
1) Disconnect hose (1).
2) Remove plate (2).
3) Remove cover (3) and exhaust connector
(4).
GENERAL DISASSEMBLY
8. 13-8 12V170-2
DISASSEMBLY AND ASSEMBLY
4) Lift off air cleaner and muffler assembly (5).
a Sling the air cleaner lightly and pull it out
of the air intake connector to remove.
4 Air cleaner and muffler assembly: 610 kg
5) Remove air intake pipes (6), (7), (8), and (9).
5. Oil filter tubes
Remove tubes (1) and (2).
6. Oil filter
Using a filter wrench, remove oil filter (3).
7. Fuel tube
1) Remove fuel tube (1).
2) Remove cover (2).
3) Disconnect joint (3).
GENERAL DISASSEMBLY
9. 12V170-2 13-9
DISASSEMBLY AND ASSEMBLY
8. Filter bracket
Lift off filter bracket (1).
9. Exhaust manifold cover (Right side is shown
in figure)
Referring to the figure, remove the exhaust man-
ifold cover.
• Remove the exhaust manifold cover on the
left side, too.
10. Turbocharger assembly
1) Referring to the figure, remove the cover.
GENERAL DISASSEMBLY
10. 13-10 12V170-2
DISASSEMBLY AND ASSEMBLY
2) Remove air intake connector (1) and connec-
tor (2) together. (Right side is shown in fig-
ure)
• Remove the connectors on the left side,
too.
3) Remove coolant tubes (3) and (4).
4) Disconnect lubrication tube (5).
5) Disconnect drain tube (6).
6) Lift off turbocharger assemblies (7) and (8).
GENERAL DISASSEMBLY
11. 12V170-2 13-11
DISASSEMBLY AND ASSEMBLY
11. Exhaust connector
Remove exhaust connector (1) of the turbo-
charger and bracket (2).
12. Coolant tube, turbocharger pipe, and exhaust
tube
1) Remove clamp (1) and coolant tube (2).
2) Remove the clamp and turbocharger lubrica-
tion tubes (3) and (4).
3) Remove connector (10).
4) Remove turbocharger drain tubes (5) and
(6).
5) Remove exhaust tube (7) and coupling (8).
6) Remove coolant tube (9).
7) Remove bracket (11).
13. Aftercooler assembly
1) Remove the mounting bolts and lift off after-
cooler assembly (1).
GENERAL DISASSEMBLY
12. 13-12 12V170-2
DISASSEMBLY AND ASSEMBLY
2) Remove connectors (2), (3), and (4) and
tube (5).
3) Remove right and left connectors (6).
4) Remove right and left covers (9).
5) Remove cores (10) and (11) from case (12).
14. Plate and case
Remove mounting bolts (1), plate (2), and case
(3).
15. Fuel injection pipe and spill tube
1) Remove 12 fuel injection pipes (1) from the
right and left banks.
GENERAL DISASSEMBLY
13. 12V170-2 13-13
DISASSEMBLY AND ASSEMBLY
2) Remove 10 spill tubes (2) and tube (3) and
(4).
16. Fuel piping
Referring to the figure, remove the fuel supply
pipe and overflow pipe.
17. Lubrication tubes
1) Remove tubes (1) and (2).
2) Remove tubes (3) and (4).
GENERAL DISASSEMBLY
14. 13-14 12V170-2
DISASSEMBLY AND ASSEMBLY
18. Fuel injection pump assembly
1) Remove the mounting bolts. Using tool A, lift
off fuel injection pump assembly (1) from the
right bank.
4 Fuel injection pump assembly: 40 kg
2) Remove the mounting bolts. Using tool A, lift
fuel injection pump assembly (2) from the left
bank.
4 Fuel injection pump assembly: 40 kg
3) Remove bracket (3).
19. Exhaust manifolds
1) Remove 4 manifolds (1).
2) Remove 4 manifolds (2).
3) Remove manifolds (3) and (4).
4) Remove 2 manifolds (5).
5) Remove manifolds (6) and (7).
GENERAL DISASSEMBLY
15. 12V170-2 13-15
DISASSEMBLY AND ASSEMBLY
20. Water pump assembly
1) Remove flange (1), clamp (2), and tube (3).
2) Remove the plug. Using [1] (10 mm, P = 1.5
mm), remove drive shaft (4).
3) Remove the bracket and water pump assem-
bly (5).
21. Oil cooler assembly
1) Sling oil cooler assembly (1) temporarily and
remove the mounting bolts, and then remove
the oil cooler assembly.
a The oil cooler mounting bolts are differ-
ent from the exhaust manifold inside
cover mounting bolts. Keep them sepa-
rately.
a Make marks on the mounting positions of
the oil cooler mounting bolts on the oil
cooler.
2) Disassemble the oil cooler assembly accord-
ing to the following procedure.
i) Remove bypass valve (2).
ii) Remove cover and element assembly (5)
from housing (4).
GENERAL DISASSEMBLY
16. 13-16 12V170-2
DISASSEMBLY AND ASSEMBLY
iii) Remove elements (6), (7), and (8) from
cover (3).
22. Oil pan
1) Sling the engine and block the oil pan hori-
zontally.
2) Remove the mounting bolts and oil pan (1).
23. Air vent tubes
1) Remove tubes (1), (2), and (3).
2) Remove tubes (4), (5), and (6).
3) Remove hose (7).
GENERAL DISASSEMBLY
17. 12V170-2 13-17
DISASSEMBLY AND ASSEMBLY
24. Thermostat assembly
1) Remove bracket (1).
2) Remove tube (2).
3) Remove right and left thermostats (3).
4) Remove bracket (12).
5) Disassemble each thermostat according to
the following procedure.
i) Remove connector (5).
ii) Remove cover (11) and 2 thermostats
(7).
25. Cylinder head covers
1) Remove joint (1).
2) Remove the mounting bolts and each head
cover (2).
3) Remove seal (3).
GENERAL DISASSEMBLY
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19. 13-18 12V170-2
DISASSEMBLY AND ASSEMBLY
26. Nozzle holders
Remove mounting bolts (1) and each nozzle
holder (2).
27. Rocker arm housing assembly
1) Remove snap ring (1) and pipe (2).
2) Remove the mounting bolts and each rocker
arm housing assembly.
a When installing the rocker arm, loosen
the locknut, and then loosen adjustment
screw (5) by 2 – 3 turns to prevent the
push rod from pushing up.
28. Push rod
Remove push rod (1).
29. Cross head
Remove cross head (1a).
30. Cylinder head assembly
1) Remove the mounting bolts, leaving 1 or 2 of
them.
GENERAL DISASSEMBLY
20. 12V170-2 13-19
DISASSEMBLY AND ASSEMBLY
2) Using tool B, sling cylinder head assembly
(2), remove the mounting bolts, and then
remove the cylinder head assembly.
4 Cylinder head assembly: 37 kg
a Disassemble the cylinder head assembly accord-
ing to the following procedure.
i) Using spring compressor C, compress spring
(1) and remove the valve cotter.
a When spring compressor C is used, the
cylinder head moves. Accordingly, fix
the cylinder head with a vice (C-clamp),
etc.
ii) Remove retainer (2) and valve spring (1).
iii) Remove lower seat (3).
iv) Remove intake valve (4) and exhaust valve
(5).
GENERAL DISASSEMBLY
21. 13-20 12V170-2
DISASSEMBLY AND ASSEMBLY
31. Oil pump assembly
1) Remove bracket (1).
2) Remove suction tube (2).
3) Remove bracket (3).
4) Using transmission jack [1], remove oil pump
assembly (4).
32. Starting motor assemblies
Remove starting motor assemblies (1) and (2).
GENERAL DISASSEMBLY
22. 12V170-2 13-21
DISASSEMBLY AND ASSEMBLY
33. Flywheel
1) Using eyebolt [1] (10 mm, P = 1.75 mm), sling
flywheel (3) temporarily.
2) Using bolt [2] (12 mm, P = 1.75 mm), remove
flywheel (3).
4 Flywheel: 97 kg
34. Flywheel housing
1) Lift off flywheel housing (4).
2) Remove rear seal (5).
35. Vibration damper
Sling vibration damper (2) temporarily and
remove the mounting bolts, and then remove
vibration damper (2).
36. Drive case assembly
1) Remove mounting bolts (1). Using a bolt (8
mm, P = 1.25 mm), remove water pump
drive case (2).
2) Remove mounting bolts (3). Using a bolt (8
mm, P = 1.25 mm), remove air compressor
drive case (4).
GENERAL DISASSEMBLY