This document contains sections related to the service manual of an excavator. Section 1 provides general safety hints and specifications. Section 2 describes the structure and function of components such as the pump device, control valve, swing device, and more. Section 3 covers the hydraulic system including circuits. Section 4 discusses the electrical system such as components and circuits. Section 5 is about the mechatronics system including control systems. Section 6 addresses troubleshooting. Section 7 includes maintenance standards. Section 8 provides instructions for disassembly and assembly of components. Section 9 gives component mounting torque values.
Hyundai r140 w 7a wheel excavator service repair manualudjjfkkskemm
This document outlines the contents and structure of a service manual for construction equipment. It contains 9 sections that cover general information, component structure and function, hydraulic, electrical, and mechatronics systems, troubleshooting, maintenance standards, disassembly/assembly procedures, and mounting torque specifications. The sections provide technical information for workshop operations, explain the operation and servicing of individual components, and provide guidance for repairs and inspections. The manual aims to improve repair quality by giving an accurate understanding of the product and correct repair procedures.
Hyundai r170 w 9 wheel excavator service repair manualudjjfkkskemm
This document contains sections related to the service manual of a machine. Section 1 provides general safety hints and specifications. Section 2 describes the structure and function of components. Section 3 covers the hydraulic system, including circuits and single/combined operations. Section 4 addresses the electrical system, components, and monitoring. Section 5 discusses the mechatronics system, including control systems and components. The document provides information on troubleshooting, maintenance standards, disassembly/assembly, and component mounting torques.
Hyundai r55 7 a crawler excavator service repair manualsoeldksejdksem
This service manual contains 8 sections that provide technical information for operations performed in a service workshop. Section 1 provides general safety hints and specifications. Section 2 explains the structure and function of each major component. Section 3 describes the hydraulic system, including circuits and operation. Section 4 covers the electrical system, components, and circuits. Section 5 is about troubleshooting hydraulic, mechanical, and electrical systems. Section 6 includes maintenance standards and procedures. Section 7 gives instructions for disassembly and assembly of components. Section 8 provides recommended component mounting torques.
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This service manual is divided into 9 sections and provides information for servicing and repairing the machine. Section 1 discusses safety and specifications. Section 2 describes the structure and function of components. Section 3 covers the hydraulic system and Sections 4 details the electrical system. Section 5 explains the mechatronics systems. Troubleshooting procedures are presented in Section 6. Section 7 provides maintenance standards. Section 8 gives instructions for disassembly and assembly. Finally, Section 9 lists component mounting torques. The manual is designed to help technicians understand the machine and perform repairs correctly.
Hyundai r80 7 crawler excavator service repair manualsoeldksejdksem
This service manual provides information on servicing and repairing construction equipment, including safety guidelines, component specifications, system diagrams, troubleshooting procedures, maintenance standards, and instructions for disassembling and assembling various parts. The manual is divided into 9 sections covering general information, component functions and systems, hydraulics, electrics, controls, troubleshooting, maintenance, disassembly/assembly, and installation torques. Detailed instructions are given for tasks such as removing and installing the swing motor, disassembling and assembling the swing motor, and converting measurement units.
Hyundai r55 w 7 wheel excavator service repair manualudfjjdksekmm
This document contains sections related to the service manual for a construction machine. Section 1 provides general safety hints and specifications. Section 2 describes the structure and function of major components. Section 3 covers the hydraulic system, including circuits and operation. Section 4 explains the electrical system, components, and circuits. Section 5 provides troubleshooting information. Section 6 includes maintenance standards. Section 7 gives instructions for disassembly and assembly of components. Section 8 lists torque specifications for mounting components. The manual is intended to aid technicians in repairs by providing accurate technical information and proper procedures.
Hyundai r170 w 9 wheel excavator service repair manualudfjjdksekmm
This document provides an overview and outline of sections contained in a service manual for construction equipment. It includes the following sections: General information, structure and function of components, hydraulic system, electrical system, mechatronics system, troubleshooting, maintenance standards, disassembly/assembly procedures, and component mounting torques. The manual is intended to improve repair quality by providing accurate technical information and instructions for operations in a service workshop.
Hyundai r170 w 9 wheel excavator service repair manualolfjsekdmmes
This document provides an overview and outline of sections contained in a service manual for construction equipment. It includes sections on general information, component structure and function, hydraulic and electrical systems, mechatronics systems, troubleshooting, maintenance standards, disassembly and assembly procedures, and component mounting torques. The manual is divided into labeled groups and sections to systematically explain the technical information needed for operations in a service workshop.
Hyundai r140 w 7a wheel excavator service repair manualudjjfkkskemm
This document outlines the contents and structure of a service manual for construction equipment. It contains 9 sections that cover general information, component structure and function, hydraulic, electrical, and mechatronics systems, troubleshooting, maintenance standards, disassembly/assembly procedures, and mounting torque specifications. The sections provide technical information for workshop operations, explain the operation and servicing of individual components, and provide guidance for repairs and inspections. The manual aims to improve repair quality by giving an accurate understanding of the product and correct repair procedures.
Hyundai r170 w 9 wheel excavator service repair manualudjjfkkskemm
This document contains sections related to the service manual of a machine. Section 1 provides general safety hints and specifications. Section 2 describes the structure and function of components. Section 3 covers the hydraulic system, including circuits and single/combined operations. Section 4 addresses the electrical system, components, and monitoring. Section 5 discusses the mechatronics system, including control systems and components. The document provides information on troubleshooting, maintenance standards, disassembly/assembly, and component mounting torques.
Hyundai r55 7 a crawler excavator service repair manualsoeldksejdksem
This service manual contains 8 sections that provide technical information for operations performed in a service workshop. Section 1 provides general safety hints and specifications. Section 2 explains the structure and function of each major component. Section 3 describes the hydraulic system, including circuits and operation. Section 4 covers the electrical system, components, and circuits. Section 5 is about troubleshooting hydraulic, mechanical, and electrical systems. Section 6 includes maintenance standards and procedures. Section 7 gives instructions for disassembly and assembly of components. Section 8 provides recommended component mounting torques.
Hyundai r160 lc 7a crawler excavator service repair manualudjjfkkskemm
This service manual is divided into 9 sections and provides information for servicing and repairing the machine. Section 1 discusses safety and specifications. Section 2 describes the structure and function of components. Section 3 covers the hydraulic system and Sections 4 details the electrical system. Section 5 explains the mechatronics systems. Troubleshooting procedures are presented in Section 6. Section 7 provides maintenance standards. Section 8 gives instructions for disassembly and assembly. Finally, Section 9 lists component mounting torques. The manual is designed to help technicians understand the machine and perform repairs correctly.
Hyundai r80 7 crawler excavator service repair manualsoeldksejdksem
This service manual provides information on servicing and repairing construction equipment, including safety guidelines, component specifications, system diagrams, troubleshooting procedures, maintenance standards, and instructions for disassembling and assembling various parts. The manual is divided into 9 sections covering general information, component functions and systems, hydraulics, electrics, controls, troubleshooting, maintenance, disassembly/assembly, and installation torques. Detailed instructions are given for tasks such as removing and installing the swing motor, disassembling and assembling the swing motor, and converting measurement units.
Hyundai r55 w 7 wheel excavator service repair manualudfjjdksekmm
This document contains sections related to the service manual for a construction machine. Section 1 provides general safety hints and specifications. Section 2 describes the structure and function of major components. Section 3 covers the hydraulic system, including circuits and operation. Section 4 explains the electrical system, components, and circuits. Section 5 provides troubleshooting information. Section 6 includes maintenance standards. Section 7 gives instructions for disassembly and assembly of components. Section 8 lists torque specifications for mounting components. The manual is intended to aid technicians in repairs by providing accurate technical information and proper procedures.
Hyundai r170 w 9 wheel excavator service repair manualudfjjdksekmm
This document provides an overview and outline of sections contained in a service manual for construction equipment. It includes the following sections: General information, structure and function of components, hydraulic system, electrical system, mechatronics system, troubleshooting, maintenance standards, disassembly/assembly procedures, and component mounting torques. The manual is intended to improve repair quality by providing accurate technical information and instructions for operations in a service workshop.
Hyundai r170 w 9 wheel excavator service repair manualolfjsekdmmes
This document provides an overview and outline of sections contained in a service manual for construction equipment. It includes sections on general information, component structure and function, hydraulic and electrical systems, mechatronics systems, troubleshooting, maintenance standards, disassembly and assembly procedures, and component mounting torques. The manual is divided into labeled groups and sections to systematically explain the technical information needed for operations in a service workshop.
Hyundai r170 w 9 wheel excavator service repair manualeudskkejedmm
This document provides service information for maintenance and repair of a machine. It is divided into multiple sections covering general information, component structure and function, hydraulic, electrical, and mechatronics systems, troubleshooting, maintenance standards, disassembly/assembly instructions, and component mounting torques. The document includes detailed descriptions, specifications, diagrams, and step-by-step instructions for repairing and replacing components. Safety precautions are highlighted throughout.
Hyundai r170 w 9 wheel excavator service repair manualfjskekfsmem
This document provides an overview and outline of sections contained in a service manual for construction equipment. It includes the following sections: General information, structure and function of components, hydraulic system, electrical system, mechatronics system, troubleshooting, maintenance standards, disassembly/assembly procedures, and component mounting torques. The manual is intended to improve repair quality by providing accurate technical information and instructions for operations in a service workshop.
Hyundai r170 w 9 wheel excavator service repair manualiekkdmmem
Here are the key steps to disassemble the transmission based on the information provided:
1. Drain the transmission oil through the screw plug into a suitable collector.
2. Remove the lube oil pump, downshift interlock, speed transmitter, bleeder, compression spring and ball.
3. Remove the threaded element with O-ring from the bore.
4. Remove the lubrication nipple, screw plugs, and bleeder valve.
5. Loosen the bolt connection of the input housing equally as it is subject to a cup spring.
Hyundai r170 w 9 wheel excavator service repair manualifkskjdksmem
Here are the key steps to disassemble the transmission based on the information provided:
1. Drain the transmission oil through the screw plug into a suitable collector.
2. Remove the lube oil pump, downshift interlock, speed transmitter, bleeder, compression spring and ball.
3. Remove the threaded element with O-ring from the bore.
4. Remove the lubrication nipple, screw plugs, and bleeder valve.
5. Loosen the bolt connection of the input housing equally as it is subject to a cup spring.
Hyundai r160 lc 7a crawler excavator service repair manualfjskekfsmem
The document contains sections on the structure, function, hydraulic system, electrical system, mechatronics system, troubleshooting, maintenance, disassembly/assembly, and component mounting torque of an excavator. It provides detailed diagrams and instructions for removing and installing components like the boom, arm, and bucket cylinders. Technical specifications and safety precautions are included throughout to aid technicians in repairs.
Hyundai r160 lc 7a crawler excavator service repair manualeudskkejedmm
This service manual is divided into 9 sections and provides information for servicing and repairing the machine. Section 1 provides general safety guidelines and machine specifications. Section 2 describes the structure and function of the machine's components. Section 3 covers the hydraulic system circuits. Section 4 addresses the electrical system. Section 5 explains the mechatronics systems that control machine operations. Troubleshooting procedures are covered in Section 6. Section 7 provides maintenance and inspection standards. Section 8 includes instructions for disassembling and assembling components. Finally, Section 9 lists component mounting torques. The manual is designed to help technicians safely and properly service the machine.
Hyundai r160 lc 7a crawler excavator service repair manualudfjjdksekmm
This service manual provides information needed for servicing and repairing the machine. It is divided into 9 sections covering safety, specifications, system descriptions, troubleshooting, maintenance, disassembly/assembly, and torque specifications. Section 1 discusses safety hints and machine specifications. Section 2 describes the functions of components. Section 3 and 4 cover the hydraulic and electrical systems. Section 5 explains the mechatronics systems that control machine operations. Troubleshooting guides are in Section 6. Section 7 provides maintenance and inspection standards. Sections 8 and 9 describe proper procedures and torque specs for disassembly/assembly and mounting components.
Hyundai r160 lc 7a crawler excavator service repair manualolfjsekdmmes
This service manual is divided into 9 sections and provides information for servicing and repairing the machine. Section 1 provides general safety guidelines and machine specifications. Section 2 describes the structure and function of the machine's components. Section 3 covers the hydraulic system circuits. Section 4 addresses the electrical system. Section 5 explains the mechatronics systems that control machine operations. Troubleshooting procedures are covered in Section 6. Section 7 provides maintenance and inspection standards. Section 8 includes instructions for disassembling and assembling components. Finally, Section 9 lists component mounting torques. The manual is designed to help technicians safely and properly service the machine.
Hyundai r160 lc 7a crawler excavator service repair manualiekkdmmem
This section provides instructions for removing and installing the boom, arm, and bucket cylinders on the excavator. The key steps are:
1. Fully extend the arm and bucket, lower the work equipment to the ground, and stop the engine before removal. Relieve hydraulic pressure.
2. Disconnect hydraulic hoses and greasing lines, and secure pins and rods to prevent parts from falling during removal.
3. Remove mounting pins and bolts, then sling and remove cylinder assemblies.
4. Installation is the reverse of removal. Bleed air from cylinders after installing. Check hydraulic oil level and for leaks.
Hyundai r160 lc 7a crawler excavator service repair manualifkskjdksmem
This section provides instructions for disassembling and assembling the boom, arm, and bucket cylinders of an excavator. It outlines the main components of each cylinder, including the tube assembly, rod assembly, seals, rings, and fittings. Detailed diagrams show the internal structures and components. Proper disassembly and assembly procedures help ensure the cylinders function properly. Safety precautions are necessary when working with hydraulic components under pressure.
Mercury mercruiser gasoline engines 5.0 l mpi alpha and bravo service repair ...ifkskjdksmem
This document is a service manual that provides instructions and specifications for maintaining Mercury Marine 5.0L, 5.7L, and 6.2L MPI gasoline engines. It contains sections on general information, maintenance procedures, engine systems, electrical systems, fuel systems, cooling systems, exhaust systems, drives, and power steering. The manual provides details on routine maintenance tasks like checking fluid levels and changing fluids, as well as scheduled maintenance intervals and specifications. Safety notices are included throughout to warn technicians of hazardous conditions.
Mercruiser sterndrive mc alpha one alpha one ss service repair manual sn0a471...ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
- Original gear ratios and ratios if serviced with different gears
- Serial number locations on units
- Proper break-in procedures for new or rebuilt units
- Guidelines for decal application and removal
- Procedures for cleaning and painting aluminum propellers and gear housings
Mercruiser sterndrive mc 898 r service repair manual sn6216687 to 6849289ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
- Original gear ratios and ratios if serviced with different gears
- Serial number locations on units
- Proper break-in procedures for new or rebuilt sterndrive units
- Guidelines for applying decals, removing paint, and repainting aluminum propellers and gear housings
Mercruiser sterndrive mc 488 r service repair manual sn6216687 to 6849289ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
- Original gear ratios and ratios if serviced with different gears
- Serial number locations on drive units and transom assemblies
- Proper break-in procedures for new or rebuilt drive units
- Guidelines for decal application and removal, painting procedures, and corrosion protection
Mercruiser sterndrive mc 260 r service repair manual sn6216687 to 6849289ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
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- Serial number locations on drive units and transom assemblies
- Proper break-in procedures for new or rebuilt drive units
- Guidelines for decal application and removal, painting procedures, and corrosion protection
Mercruiser sterndrive mc 260 mr service repair manual sn6849290 to 0a471374ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
- Original gear ratios and ratios if serviced with different gears
- Serial number locations on drive units and transom assemblies
- Proper break-in procedures for new or rebuilt drive units
- Guidelines for decal application and removal, painting procedures, and corrosion protection
Mercruiser sterndrive mc 230 mr service repair manual sn6849290 to 0a471374ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
- Original gear ratios and ratios if serviced with different gears
- Serial number locations on units
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- Guidelines for decal application and removal
- Procedures for cleaning and painting aluminum propellers and gear housings
Mercruiser sterndrive mc 228 r service repair manual sn6216687 to 6849289ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
- Original gear ratios and ratios if serviced with different gears
- Serial number locations on units
- Proper break-in procedures for new or rebuilt sterndrive units
- Guidelines for applying decals, removing paint, and repainting aluminum propellers and gear housings
Mercruiser sterndrive mc 200 mr service repair manual sn6849290 to 0a471374ifkskjdksmem
This document provides information on Mercury Marine sterndrive units and transom assemblies, including:
- Models and serial number ranges covered
- Original gear ratios and ratios if serviced with different gears
- Serial number locations on drive units and transom assemblies
- Proper break-in procedures for new or rebuilt drive units
- Guidelines for decal application and removal, painting procedures, and corrosion protection
Jcb tm320 tier3 telescopic wheeled loader service repair manualifkskjdksmem
This document provides information about identifying JCB machines and their components, as well as torque settings for fasteners. It describes identifying the machine using the identification plate and serial numbers stamped on major components. It also explains how to identify the type of fastener (zinc plated or Dacromet) by their color and part number suffix. Tables with torque settings are provided for UNF Grade 'S' and metric Grade 8.8 fasteners under lubricated and unlubricated conditions. Instructions are given to only use the relevant torque settings for the fastener type.
Jcb tm310 wm tier3 telescopic wheeled loader service repair manualifkskjdksmem
This document provides information about identifying JCB machines and their components, as well as torque settings for fasteners. It describes identifying the machine using the identification plate and serial numbers stamped on major components. It also explains how to identify the type of fastener (zinc plated or Dacromet) by their color and part number suffix. Tables with torque settings are provided for UNF Grade 'S' and metric Grade 8.8 fasteners under lubricated and unlubricated conditions. Instructions are given to only use the relevant torque settings for the type of fastener and not mix zinc and Dacromet components.
Jcb tm310 s tier3 telescopic wheeled loader service repair manualifkskjdksmem
This document provides information about identifying JCB machines and their components, as well as torque settings for fasteners. It describes identifying machines using identification and component plates, which contain serial numbers. It also details typical product identification numbers and vehicle identification numbers. The document outlines torque settings for zinc plated, yellow plated, and Dacromet fasteners under lubricated and unlubricated conditions. Tables with torque settings are provided for UNF and metric grade fasteners.
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Jcb jz140 tier 3 isuzu tracked excavator service repair manual from 1390000 t...ifkskjdksmem
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Hyundai r140 w 7a wheel excavator service repair manual
1. CONTENTS
SECTION 1 GENERAL
Group 1 Safety Hints ---------------------------------------------------------------------------------------------------- 1-1
Group 2 Specifications ------------------------------------------------------------------------------------------------- 1-9
SECTION 2 STRUCTURE AND FUNCTION
Group 1 Pump Device -------------------------------------------------------------------------------------------------- 2-1
Group 2 Main Control Valve ----------------------------------------------------------------------------------------- 2-21
Group 3 Swing Device ------------------------------------------------------------------------------------------------- 2-44
Group 4 Travel Motor --------------------------------------------------------------------------------------------------- 2-53
Group 5 RCV Lever ------------------------------------------------------------------------------------------------------ 2-59
Group 6 Accelerator Pedal ------------------------------------------------------------------------------------------- 2-66
Group 7 Brake Pedal ---------------------------------------------------------------------------------------------------- 2-67
Group 8 Transmission -------------------------------------------------------------------------------------------------- 2-69
Group 9 Travel Control Valve --------------------------------------------------------------------------------------- 2-76
Group 10 Steering Valve ------------------------------------------------------------------------------------------------ 2-78
SECTION 3 HYDRAULIC SYSTEM
Group 1 Hydraulic Circuit --------------------------------------------------------------------------------------------- 3-1
Group 2 Main Circuit ---------------------------------------------------------------------------------------------------- 3-2
Group 3 Pilot Circuit ----------------------------------------------------------------------------------------------------- 3-5
Group 4 Single Operation -------------------------------------------------------------------------------------------- 3-13
Group 5 Combined Operation -------------------------------------------------------------------------------------- 3-28
SECTION 4 ELECTRICAL SYSTEM
Group 1 Component Location -------------------------------------------------------------------------------------- 4-1
Group 2 Electrical Circuit ---------------------------------------------------------------------------------------------- 4-3
Group 3 Electrical Component Specification --------------------------------------------------------------- 4-23
Group 4 Connectors ----------------------------------------------------------------------------------------------------- 4-32
SECTION 5 MECHATRONICS SYSTEM
Group 1 Outline ------------------------------------------------------------------------------------------------------------ 5-1
Group 2 Mode Selection System --------------------------------------------------------------------------------- 5-3
Group 3 Automatic Deceleration System --------------------------------------------------------------------- 5-6
2. Group 4 Power Boost System -------------------------------------------------------------------------------------- 5-7
Group 5 Travel Speed Control System ------------------------------------------------------------------------- 5-8
Group 6 Automatic Warming Up Function ------------------------------------------------------------------- 5-9
Group 7 Engine Overheat Prevention Function ----------------------------------------------------------- 5-10
Group 8 Anti-Restart System ---------------------------------------------------------------------------------------- 5-11
Group 9 Self-Diagnostic System ---------------------------------------------------------------------------------- 5-12
Group 10 Engine Control System ---------------------------------------------------------------------------------- 5-17
Group 11 EPPR(Electro Proportional Pressure Reducing) Valve --------------------------------- 5-19
Group 12 Monitoring System ------------------------------------------------------------------------------------------ 5-22
Group 13 Fuel Warmer --------------------------------------------------------------------------------------------------- 5-33
SECTION 6 TROUBLESHOOTING
Group 1 Before Troubleshooting ---------------------------------------------------------------------------------- 6-1
Group 2 Hydraulic and Mechanical System ---------------------------------------------------------------- 6-4
Group 3 Electrical System ------------------------------------------------------------------------------------------- 6-25
Group 4 Mechatronics System ------------------------------------------------------------------------------------ 6-40
SECTION 7 MAINTENANCE STANDARD
Group 1 Operational Performance Test ----------------------------------------------------------------------- 7-1
Group 2 Major Components ----------------------------------------------------------------------------------------- 7-19
Group 3 Track and Work Equipment ---------------------------------------------------------------------------- 7-28
SECTION 8 DISASSEMBLY AND ASSEMBLY
Group 1 Precaution ------------------------------------------------------------------------------------------------------ 8-1
Group 2 Tightening Torque ------------------------------------------------------------------------------------------ 8-4
Group 3 Pump Device -------------------------------------------------------------------------------------------------- 8-7
Group 4 Main Control Valve ----------------------------------------------------------------------------------------- 8-30
Group 5 Swing Device -------------------------------------------------------------------------------------------------- 8-44
Group 6 Travel Motor ---------------------------------------------------------------------------------------------------- 8-65
Group 7 Transmission -------------------------------------------------------------------------------------------------- 8-89
Group 8 Steering Valve ------------------------------------------------------------------------------------------------ 8-143
Group 9 Front Axle and Rear Axle ------------------------------------------------------------------------------- 8-168
Group 10 RCV Lever ---------------------------------------------------------------------------------------------------- 8-239
Group 11 Turning Joint ------------------------------------------------------------------------------------------------- 8-254
Group 12 Boom, Arm, Bucket, Dozer and Outrigger Cylinders ------------------------------------ 8-261
Group 13 Work Equipment ------------------------------------------------------------------------------------------ 8-283
3. SECTION 9 COMPONENT MOUNTING TORQUE
Group 1 Introduction Guide ------------------------------------------------------------------------------------------ 9-1
Group 2 Engine System ----------------------------------------------------------------------------------------------- 9-2
Group 3 Electric System ----------------------------------------------------------------------------------------------- 9-4
Group 4 Hydraulic System ------------------------------------------------------------------------------------------- 9-6
Group 5 Power train System ---------------------------------------------------------------------------------------- 9-9
Group 6 Structure --------------------------------------------------------------------------------------------------------- 9-11
Group 7 Work Equipment -------------------------------------------------------------------------------------------- 9-15
4. 0-1
FOREWORD
1. STRUCTURE
This service 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 judgements. Make sure you understand the contents of this manual and use it to
full effect at every opportunity.
This service 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 sections.
SECTION 1 GENERAL
This section explains the safety hints and gives the specification of the machine and major
components.
SECTION 2 STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an
understanding of the structure, but also serves as reference material for troubleshooting.
SECTION 3 HYDRAULIC SYSTEM
This section explains the hydraulic circuit, single and combined operation.
SECTION 4 ELECTRICAL SYSTEM
This section explains the electrical circuit, monitoring system and each component. It serves not only
to give an understanding electrical system, but also serves as reference material for trouble shooting.
SECTION 5 MECHATRONICS SYSTEM
This section explains the computer aided power optimization system and each component.
SECTION 6 TROUBLESHOOTING
This section explains the troubleshooting charts correlating problems to causes.
SECTION 7 MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.
SECTION 8 DISASSEMBLY AND ASSEMBLY
This section explains the order to be followed when removing, installing, disassembling or assembling
each component, as well as precautions to be taken for these operations.
SECTION 9 COMPONENT MOUNTING TORQUE
This section shows bolt specifications and standard torque values needed when mounting
components to the machine.
The specifications contained in this shop manual are subject to change at any time and without any
advance notice. Contact your HYUNDAI distributor for the latest information.
5. 0-2
Revised edition mark (ΗΘΙÄ)
When a manual is revised, an edition mark is
recorded on the bottom outside corner of the
pages.
R
Revisions
Revised pages are shown at the list of revised
pages on the between the contents page and
section 1 page.
Symbols
So that the shop manual can be of ample
practical use, important places for safety and
quality are marked with the following symbols.
2. HOW TO READ THE SERVICE MANUAL
Distribution and updating
Any additions, amendments or other changes
will be sent to HYUNDAI distributors.
Get the most up-to-date information before you
start any work.
Filing method
See the page number on the bottom of the
page.
File the pages in correct order.
Following examples shows how to read the
page number.
Example 1
2 - 3
Item number (2. Structure and
Function)
Consecutive page number for
each item.
Additional pages : Additional pages are
indicated by a hyphen (-) and number after the
page number. File as in the example.
1.
2.
3.
Symbol Item Remarks
Special safety precautions are
necessary when performing the
work.
Extra special safety precautions
are necessary when performing
the work because it is under
internal pressure.
Special technical precautions or
other precautions for preserving
standards are necessary when
performing the work.
Safety
Caution
ö
10 - 4
10 - 4 - 1
10 - 4 - 2
10 - 5
Added pages
6. 1. REMOVAL AND INSTALL
REMOVAL
Lower the work equipment to the ground
and stop the engine.
Operate the control levers and pedals
several times to release the remaining
pressure in the hydraulic piping
Loosen the breather slowly to release the
pressure inside the hydraulic tank.
Escaping fluid under pressure can
penetrate the skin causing serious
injury.
Loosen the drain plug under the hydraulic
tank and drain the oil from the hydraulic
tank.
ÂHydraulic tank quantity : 124˶(32.7
U.S. gal)
Remove socket bolts (13) and disconnect
hoses (1,2).
Disconnect pilot line hoses (5, 6, 7, 8, 9,
10, 11).
Remove socket bolts (14) and disconnect
pump suction pipe (4).
When pump suction tube is disconnect-
ed, the oil inside the piping will flow out,
so catch it in oil pan.
Sling the pump assembly and remove the
pump mounting bolts.
 Weight : 91kg (200lb)
Pull out the pump assembly from
housing.
When removing the pump assembly,
check that all the hoses have been
disconnected.
8-7
G
GROUP 3 PUMP DEVICE
14
1
13
4
2
3
A1
A2
B1
10
9
8
5
6 7
11
1)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
ö
(8)
ö
13031GE18
14W7A8MP01
14W7A8MP02
7. 8-8
INSTALL
Carry out installation in the reverse order
to removal.
Remove the suction strainer and clean it.
Replace return filter with new one.
Remove breather and clean it.
After adding oil to the hydraulic tank to the
specified level.
Bleed the air from the hydraulic pump.
Remove the air vent plug (2EA).
Tighten plug lightly.
Start the engine, run at low idling, and
check oil come out from plug.
Tighten plug.
Start the engine, run at low idling (3~5
minutes) to circulate the oil through the
system.
Confirm the hydraulic oil level and check
the hydraulic oil leak or not.
2)
(1)
(2)
(3)
(4)
(5)
(6)
Η
Θ
Ι
Κ
(7)
(8)
8. 8-9
2. MAIN PUMP(1/2)
STRUCTURE
1)
A
14W72SF02
111 Drive shaft (F)
113 Drive shaft (R)
116 Gear
123 Roller bearing
124 Needle bearing
127 Bearing spacer
141 Cylinder block
151 Piston
152 Shoe
153 Push-plate
156 Bushing
157 Cylinder spring
211 Shoe plate
212 Swash plate
214 Bushing
251 Support
261 Seal cover (F)
262 Seal cover (R)
271 Pump casing
312 Valve block
313 Valve plate (R)
314 Valve plate (L)
401 Hexagon socket bolt
406 Hexagon socket bolt
466 VP Plug
467 VP Plug
468 VP Plug
490 Plug
531 Tilting pin
532 Servo piston
534 Stopper (L)
535 Stopper (S)
548 Pin
702 O-ring
710 O-ring
711 O-ring
717 O-ring
719 O-ring
724 O-ring
725 O-ring
727 O-ring
728 O-ring
732 O-ring
774 Oil seal
789 Back up ring
792 Back up ring
808 Hexagon head nut
824 Snap ring
885 Pin
886 Spring pin
901 Eye bolt
953 Set screw
954 Set screw
981 Plate
983 Pin
9. 8-10
MAIN PUMP(2/2)
04
826
115
128
262
827
126
326
414
125
711
284 710 825
435
468 728
118
117
FRONT SIDE REAR SIDE
886
14W7A2MP03
04 Gear pump
115 Shaft
117 Gear No.2
118 Gear No.3
125 Ball bearing
126 Roller bearing
128 Bearing spacer
262 Cover
284 Plate
326 Case
414 Screw
435 Hexagon socket bolt
468 Plug
710 O-ring
711 O-ring
728 O-ring
825 Retainer ring
826 Retainer ring
827 Retainer ring
886 Pin
10. 8-11
TOOLS AND TIGHTENING TORQUE
Tools
The tools necessary to disassemble/reassemble the pump are shown in the follow list.
2)
(1)
Hexagon socket
head bolt
Hexagon socket
head bolt
Hexagon nut
VP plug
(PF thread)
M 5
M 6
M 8
M10
M20, M22
M12
M16
M18
M20
-
M12
M16
M18
M20
-
VP-1/4
-
VP-1/2
-
VP-3/4
BP-1/16
BP-1/8
BP-1/4
BP-3/8
BP-1
-
-
PO-1/4
PO-3/8
PO-1, 1 1/4, 1 1/2
M 8
M10
M12, M14
M16, M18
-
PT plug
(PT thread)
PO plug
(PF thread)
Hexagon socket
head setscrew
Name
Tool name & size Part name
Allen wrench
Double ring spanner,
socket wrench, double(Single)
open end spanner
B
B
B
4
5
6
8
17
-
19
24
27
30
36
Adjustable angle wrench
Screw driver
Hammer
Pliers
Steel bar
Torque wrench
Medium size, 1 set
Minus type screw driver, Medium size, 2 sets
Plastic hammer, 1 set
For snap ring, TSR-160
Steel bar of key material approx. 10Ý8Ý200
Capable of tightening with the specified torques
12. 8-13
DISASSEMBLY
Select place suitable to disassembling.
Select clean place.
Spread rubber sheet, cloth or so on on
overhaul workbench top to prevent parts
from being damaged.
Remove dust, rust, etc, from pump
surfaces with cleaning oil or so on.
Remove drain port plug (468) and let oil
out of pump casing (Front and rear pump).
3)
Place pump horizontally on workbench
with its regulator-fitting surface down and
separate pump casing (271) from valve
block (312).
Before bringing this surface down, spread
rubber sheet on workbench without fail to
prevent this surface from being damaged.
(1)
ö
ö
(2)
(3)
(6)
ö
Loosen hexagon socket head bolts (401)
which tighten swash plate support (251),
pump casing (271) and valve block (312).
If gear pump and so on are fitted to rear
face of pump, remove them before
starting this work.
(5)
ö
Remove hexagon socket head bolts (412,
413) and remove regulator.
(4)
MP01 (140-7)
MP02 (140-7)
13. 8-14
Pull cylinder block (141) out of pump
casing (271) straightly over drive shaft
(111). Pull out also pistons (151), set
plate (153), spherical bush (156) and
cylinder springs (157) simultaneously.
Take care not to damage sliding surfaces
of cylinder, spherical bushing, shoes,
swash plate, etc.
(7)
ö
Remove hexagon socket head bolts (406)
and then seal cover (F, 261).
Fit bolt into pulling out tapped hole of seal
cover (F), and cover can be removed
easily.
Since oil seal is fitted on seal cover (F),
take care not to damage it in removing
cover.
Remove hexagon socket head bolts (408)
and then seal cover (R, 262).
In case fitting a gear pump, first, remove
gear pump.
Tapping lightly fitting flange section of
swash plate support (251) on its pump
casing side, separate swash plate support
from pump casing.
(8)
ö
ö
(9)
Remove shoe plate (211)and swash plate
(212) from pump casing (271).
(11)
(10)
MP03 (140-7)
MP04 (140-7)
MP05 (140-7)
MP06 (140-7)
14. 8-15
If necessary, remove stopper (L, 534),
stopper (S, 535), servo piston (532) and
tilting pin (531) from pump casing (271),
and needle bearing (124) and splined
coupling (114) from valve block (312).
In removing tilting pin, use a protector to
prevent pin head from being damaged.
Since loctite is applied to fitting areas of
tilting pin and servo piston, take care not
to damage servo piston.
Do not remove needle bearing as far as
possible, except when it is considered to
be out of its life span.
Do not loosen hexagon nuts of valve block
and swash plate support.
If loosened, flow setting will be changed.
(14)
ö
ö
ö
ö
Remove valve plates (313, 314) from valve
block (312).
These may be removed in work (6).
(13)
ö
Tapping lightly shaft ends of drive shafts
(111, 113) with plastic hammer, take out
drive shafts from swash plate supports.
(12)
MP07 (140-7)
MP08 (140-7)
15. 8-16
ASSEMBLY
For reassembling reverse the
disassembling procedures, paying
attention to the following items.
Do not fail to repair the parts damaged
during disassembling, and prepare
replacement parts in advance.
Clean each part fully with cleaning oil and
dry it with compressed air.
Do not fail to apply clean working oil to
sliding sections, bearings, etc. before
assembling them.
In principle, replace seal parts, such as
O-rings, oil seals, etc.
For fitting bolts, plug, etc., prepare a
torque wrench or so on, and tighten them
with torques shown in page 8-11, 12.
For the double-pump, take care not to
mix up parts of the front pump with those
of the rear pump.
(1)
4)
Η
Θ
Ι
Κ
Λ
Μ
Fit swash plate support (251) to pump
casing (271), tapping the former lightly
with a hammer.
After servo piston, tilting pin, stopper (L)
and stopper (S) are removed, fit them
soon to pump casing in advance for
reassembling.
In tightening servo piston and tilting pin,
use a protector to prevent tilting pin head
and feedback pin from being damaged.
In addition, apply loctite (Medium
strength) to their threaded sections.
(2)
ö
ö
MP09 (140-7)
16. 8-17
Place pump casing with its regulator fitting
surface down, fit tilting bush of swash plate
to tilting pin (531) and fit swash plate
(212) to swash plate support (251)
correctly.
Confirm with fingers of both hands that
swash plate can be removed smoothly.
Apply grease to sliding sections of swash
plate and swash plate support, and drive
shaft can be fitted easily.
(3)
ö
ö
Assemble piston cylinder subassembly
Ðcylinder block (141), piston subassembly
(151, 152), set plate (153), spherical bush
(156), spacer (158) and cylinder spring
(157)Ñ
.
Fit spline phases of retainer and cylinder.
Then, insert piston cylinder subassembly
into pump casing.
(6)
Assemble seal cover (F, 261) to pump
casing (271) and fix it with hexagon socket
head bolts (406).
Apply grease lightly to oil seal in seal
cover (F).
Assemble oil seal, taking full care not to
damage it.
For tandem type pump, fit rear cover (263)
and seal cover (262) similarly.
(5)
ö
ö
ö
To swash plate support (251), fit drive
shaft (111) set with bearing (123), bearing
spacer (127) and snap ring (824).
Do not tap drive shaft with hammer or so
on.
Assemble them into support, tapping
outer race of bearing lightly with plastic
hammer.
Fit them fully, using steel bar or so on.
(4)
ö
ö
MP10 (140-7)
MP11 (140-7)
MP12 (140-7)
MP13 (140-7)
17. 8-18
Fit valve plate (313) to valve block (312),
entering pin into pin hole.
Take care not to mistake suction / delivery
directions of valve plate.
(7)
ö
Putting feedback pin of tilting pin into
feedback lever of regulator, fit regulator
and tighten hexagon socket head bolts
(412, 413).
Take care not to mistake regulator of front
pump for that of rear pump.
(9)
ö
Fit valve block (312) to pump casing (271)
and tighten hexagon socket head bolts
(401).
At first assemble this at rear pump side,
and this work will be easy.
Take care not to mistake direction of valve
block.
Clockwise rotation (Viewed from input
shaft side) - Fit block with regulator up and
with delivery flange left, viewed from front
side.
Counter clockwise rotation (Viewed from
input shaft side) - Fit block with delivery
flange right, viewed from front side.
(8)
ö
ö
ö
ö
Fit drain port plug (468).
This is the end of reassembling procedures.
(10)
MP14 (140-7)
MP16 (140-7)
MP17 (140-7)
18. 8-19
3. REGULATOR
STRUCTURE(1/2)
1)
412 876 874
A
B
755
858
614
615
613
611
A
B
VIEW C(FRONT)
897
612
647
642
801
641 730 643 708 644 645 646
SECTION B-B
728 924 801
438
Pi
P2
KR38-9C02 (FRONT)
KR38-9C01 (REAR)
A
B
Pm
413 438
496 724 725 436
D
D
VIEW C(REAR)
413 438
656
438
722
496 724 725 436
079 735 722 466
755
496
753
SECTION D-D P1
a
875 Pm
P1
a
405
699
Pm
Pi
723
648
735
Pi
Pm
Pi
C
14W7A2MP04
19. 8-20
REGULATOR(2/2)
734 653 654 836 651 652 601 624 629 630
655
641
814
898
631
732
628
756
763
887
626
625
733
622
621 623 754
802
627
SECTION A-A
14W7A2MP05
405 Hexagon socket screw
412 Hexagon socket screw
413 Hexagon socket screw
436 Hexagon socket screw
438 Hexagon socket screw
466 Plug
496 Plug
601 Casing
611 Feed back lever
612 Lever (1)
613 Lever (2)
614 Fulcrum plug
615 Adjust plug
621 Compensator piston
622 Piston case
623 Compensator rod
624 Spring seat (C)
625 Outer spring
626 Inner spring
627 Adjust stem (C)
628 Adjust screw (C)
629 Cover (C)
630 Lock nut
631 Sleeve, kf
641 Pilot cover
642 Pilot cover (QMC)
643 Pilot piston
644 Spring seat (Q)
645 Adjust stem (Q)
646 Pilot spring
647 Stopper
648 Piston (QMC)
651 Sleeve
652 Spool
653 Spring seat
654 Return spring
655 Set spring
656 Block cover
699 Valve casing
708 O-ring
722 O-ring
723 O-ring
724 O-ring
725 O-ring
728 O-ring
730 O-ring
732 O-ring
733 O-ring
734 O-ring
735 O-ring
753 O-ring
754 O-ring
755 O-ring
756 O-ring
763 O-ring
801 Nut
802 Nut
814 Snap ring
836 Snap ring
858 Snap ring
874 Pin
875 Pin
876 Pin
887 Pin
897 Pin
898 Pin
924 Set screw
20. 8-21
TOOLS AND TIGHTENING TORQUE
Tools
The tools necessary to disassemble/reassemble the pump are shown in the follow list.
2)
(1)
Name
Adjustable angle wrench
Screw driver
Hammer
Pliers
Steel bar
Torque wrench
Pincers
Bolt
Small size, Max 36mm
Minus type screw driver, Medium size, 2 sets
Plastic hammer, 1 set
For snap ring, TSR-160
4Ý100mm
Capable of tightening with the specified torques
-
M4, Length : 50mm
Tool name & size Part name
Hexagon socket
head bolt
PT plug
(PT thread)
PO plug
(PF thread)
Hexagon socket
head setscrew
M 5
M 6
M 8
Hexagon head
bolt
M 8
Hexagon nut
M 8
VP plug
(PF thread)
-
BP-1/16
BP-1/8
BP-1/4
-
-
PO-1/4
M 8
M10
M12, M14
B
B
B
4
5
6
-
6
Allen wrench
Double ring spanner,
socket wrench, double(Single)
open end spanner
22. 8-23
DISASSEMBLY
Since the regulator consists of small
precision finished parts, disassembly and
assembly are rather complicated.
For this reason, replacement of a regulator
assembly is recommended, unless there is
a special reason, but in case disassembly is
necessary for an unavoidable reason, read
through this manual to the end before
starting disassembly.
Choose a place for disassembly.
Choose a clean place.
Spread rubber sheet, cloth, or so on top of
work-bench to prevent parts from being
damaged.
Remove dust, rust, etc. from surfaces of
regulator with clean oil.
(1)
ö
ö
(2)
3
3)
Remove hexagon socket head screw
(438) and remove cover (C,629)
Cover (C) is fitted with adjusting screw
(C,QI) (628, 925), adjusting ring (C, 627),
lock nut (630), hexagon nut (801) and
adjusting screw (924).
Do not loosen these screws and nuts.
If they are loosened, adjusted pressure-
flow setting will vary.
(4)
ö
Remove hexagon socket head screw
(412, 413) and remove regulator main
body from pump main body.
Take care not to lose O-ring.
(3)
ö
REG01 (140-7)
REG02 (140-7)
23. 8-24
Remove locking ring (858) and take out
fulcrum plug (614) and adjusting plug
(615).
Fulcrum plug (614) and adjusting plug
(615) can easily be taken out with M6 bolt.
(8)
ö
Remove snap ring (814) and take out
spring seat (653), return spring (654) and
sleeve (651).
Sleeve (651) is fitted with snap ring (836).
When removing snap ring (814), return
spring (654) may pop out.
Take care not to lose it.
(7)
ö
ö
Remove hexagon socket head screws
(436, 438) and remove pilot cover (641).
After removing pilot cover, take out set
spring (655) from pilot section.
(6)
After removing cover (C, 629) subassembly,
take out outer spring (625), inner spring
(626) and spring seat (C, 624) from
compensating section.
Then draw out adjusting ring (Q, 645),
pilot spring (646) and spring seat (644)
from pilot section.
Adjusting ring (Q,645) can easily be
drawn out with M4 bolt.
(5)
ö
REG03 (140-7)
REG04 (140-7)
REG05 (140-7)
REG06 (140-7)
24. 8-25
Draw out pin (874) and remove feedback
lever (611).
Push out pin (874, 4mm in dia.) from
above with slender steel bar so that it may
not interfere with lever (1, 612).
(10)
Remove lever (2, 613). Do not draw out
pin (875).
Work will be promoted by using pincers or
so on.
(9)
ö
REG07 (140-7)
REG08 (140-7)
REG09 (140-7)
REG10 (140-7)
25. 8-26
Remove lever (1, 612). Do not draw out
pin (875).
Draw out pilot piston (643) and spool
(652).
Draw out piston case (622), compensating
piston (621) and compensating rod (623).
Piston case (622) can be taken out by
pushing compensating rod (623) at
opposite side of piston case.
This completes disassembly.
(11)
(12)
(13)
ö
26. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
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27. 8-27
ASSEMBLY
For assembly, reverse disassembly
procedures, but pay attention to the
following items.
Always repair parts that were scored at
disassembly.
Get replacement parts ready beforehand.
Mixing of foreign matter will cause
malfunction.
Therefore, wash parts well with cleaning
oil, let them dry with jet air and handle
them in clean place.
Always tighten bolts, plugs, etc. to their
specified torques.
Do not fail to coat sliding surfaces with
clean hydraulic oil before assembly.
Replace seals such as O-ring with new
ones as a rule.
(1)
Η
Θ
Ι
Κ
Λ
4
4)
Spool
Feedback lever
Put compensating rod (623) into
compensating hole of casing (601).
Put pin force-fitted in lever (1, 612) into
groove of compensating rod and fit lever
(1) to pin force-fitted in casing.
(2)
(3)
Fit spool (652) and sleeve (651) into hole
in spool of casing.
Confirm that spool and sleeve slide
smoothly in casing without binding.
Pay attention to orientation of spool.
(4)
ö
ö
8-27 (140-7)
28. 8-28
Lever (1) side Lever (2) side
(Fulcrum plug of
adjusting plug side)
Fit return spring (654) and spring seat
(653) into spool hole and attach snap ring
(814).
(10)
Fit fulcrum plug (614) so that pin force-
fitted in fulcrum plug (614) can be put into
pin hole of lever (2).
Then fix locking ring (858).
Insert adjusting plug (615) and fit locking
ring.
Take care not to mistake inserting holes
for fulcrum plug and adjusting plug.
At this point in time move feedback lever
to confirm that it has no large play and is
free from binding.
(8)
(9)
ö
Put pilot piston (643) into pilot hole of
casing.
Confirm that pilot piston slides smoothly
without binding.
Put pin force-fitted in lever (2, 613) into
groove of pilot piston.
Then fix lever (2).
(6)
ö
(7)
Fit feedback lever (611), matching its pin
hole with pin hole in spool.
Then insert pin (874).
Insert pin in feedback lever a little to ease
operation.
Take care not to mistake direction of
feedback lever.
(5)
ö
ö
8-28 (140-7)
REG11 (140-7)
REG12 (140-7)
REG13 (140-7)
29. 8-29
Install cover (C, 629) fitted with adjusting
screws (628), adjusting ring (C, 627), lock
nut (630), hexagon nut (801) and
adjusting screw (924).
Then tighten them with hexagonal socket
head screws (438).
This completes assembly.
(13)
Put spring seat (644), pilot spring (646)
and adjusting ring (Q, 645) into pilot hole.
Then fix spring seat (624), inner spring
(626) and outer spring (625) into
compensating hole.
When fitting spring seat, take care not to
mistake direction of spring seat.
(12)
ö
Fit set spring (655) to spool hole and put
compensating piston (621) and piston
case (622) into compensating hole.
Fit pilot cover (641) and tighten it with
hexagonal socket head screws (436,
438).
(11)
REG14 (140-7)
REG15 (140-7)
REG16 (140-7)