This document provides specifications for a WA250PZ-5 wheel loader, including:
- Operating weight of 12,275 kg and rated load of 3,680 kg.
- It uses a Komatsu SAA6D102E-2-A diesel engine producing 101 kW at 2,000 rpm.
- Dimensions including an overall length of 7,245 mm, width of 2,470 mm, and height of 3,240 mm.
- It has a maximum travel speed of 38 km/h and gradeability of 25 degrees.
Komatsu WA430-5 Wheel Loader Service Repair Manual SN:60001 and upfujdfjjsekkemm
This is the Highly Detailed factory service repair manual for theKOMATSU WA430-5 WHEEL LOADER, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KOMATSU WA430-5 WHEEL LOADER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General
Structure, function and maintenance standard
Testing and adjusting
Disassembly and assembly
Others
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKOMATSU WA430-5 WHEEL LOADER Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
Komatsu d275 ax 5 dozer bulldozer service repair manual sn 20001 and upjfjedkmsmem
This document provides information about a Komatsu shop manual for a D275AX-5 excavator, including:
- The manual may contain optional equipment not available in all areas, so check with your local distributor. Specifications are subject to change without notice.
- The D275AX-5 is equipped with an SDA6D140E-3 engine (see the engine shop manual for details).
- The manual contents include sections on structure/function, testing/adjusting, disassembly/assembly, maintenance standards, and others (such as diagrams).
- Safety precautions are marked with the symbol "k" and should always be followed carefully. Workers' safety is the top priority
Komatsu WA470-3 Wheel Loader Service Repair Manual (WA470-3 Serial 50001 and up)fujsjfjskekmem
This is the Highly Detailed factory service repair manual for theKOMATSU WA470-3 WHEEL LOADER, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KOMATSU WA470-3 WHEEL LOADER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Models Covers:
WA470-3 Serial 50001 and up
Service Repair Manual Covers:
General
Structure and function
Testing and adjusting
Disassembly and assembly
Maintenance standard
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKOMATSU WA470-3 WHEEL LOADER Service Repair Workshop Manual.
Thanks for visiting!
Komatsu wa250 pt 5 wheel loader service repair manual (sn 70001 and up)ufjjsekkdmmd
This shop manual provides instructions for servicing a Komatsu WA250-5 wheel loader. It begins with safety precautions and general information. It then details the machine's structure, functions, and maintenance standards. Testing and adjusting procedures are outlined, followed by instructions for disassembly, assembly, and repair. The manual is divided into sections covering general topics, structure and function, testing and adjusting, disassembly and assembly, and others. Technicians are advised to follow the manual carefully for safe and effective repairs.
Komatsu wa900 3 wheel loader service repair manual (sn50001 and up)fujsjefksekmm
This shop manual provides service technicians with information for repairing and maintaining a WA900-3 wheel loader. It contains sections on the machine's structure and function, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual emphasizes safety precautions and provides diagrams and specifications to aid technicians in their work. It is divided into chapters that cover general information, components, and systems to help technicians efficiently find relevant repair instructions.
Komatsu wa450 3 ll wheel loader service repair manual (sn 50305 and up)fujsjefksekmm
1. This shop manual provides service information for the WA450-3LL log loader, including its structure, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards.
2. The WA450-3LL is equipped with a Komatsu S6D125 engine. The engine shop manual should be consulted for any engine service needs.
3. Safety precautions are outlined, including the proper use of tools, protective equipment, and lifting equipment to prevent injuries during service work.
Komatsu wa800 3 wheel loader service repair manual (sn 50001 and up)ufjsjekfksemm
This shop manual provides service information for the WA800-3 wheel loader. It contains sections on the machine's structure and function, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual emphasizes safety precautions and provides diagrams of hydraulic and electrical systems. Technicians can use this manual to understand how the machine operates and correctly perform repairs and inspections. It aims to improve service quality and ensure repairs are done effectively and safely.
Komatsu D475A-3 Dozer Bulldozer Service Repair Manual S/N 10601 and uphdjksmemm
This is the Highly Detailed factory service repair manual for theKOMATSU D475A-3 DOZER BULLDOZER , this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KOMATSU D475A-3 DOZER BULLDOZER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General
Structure and Function
Testing and Adjusting
Disassembly and Assembly
Maintenance Standard
Others
+++++
Field Assembly Instruction
Manual Covers:
Specifications
Precautions for Field Assembly
Assembly Procedure, Necessary Equipment, and Schedule
Layout of Kit
Style for Transportation
Tools List for Field Assembly
Tightening Torque
Coating Materials
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKOMATSU D475A-3 DOZER BULLDOZER Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Komatsu WA430-5 Wheel Loader Service Repair Manual SN:60001 and upfujdfjjsekkemm
This is the Highly Detailed factory service repair manual for theKOMATSU WA430-5 WHEEL LOADER, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KOMATSU WA430-5 WHEEL LOADER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General
Structure, function and maintenance standard
Testing and adjusting
Disassembly and assembly
Others
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKOMATSU WA430-5 WHEEL LOADER Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
Komatsu d275 ax 5 dozer bulldozer service repair manual sn 20001 and upjfjedkmsmem
This document provides information about a Komatsu shop manual for a D275AX-5 excavator, including:
- The manual may contain optional equipment not available in all areas, so check with your local distributor. Specifications are subject to change without notice.
- The D275AX-5 is equipped with an SDA6D140E-3 engine (see the engine shop manual for details).
- The manual contents include sections on structure/function, testing/adjusting, disassembly/assembly, maintenance standards, and others (such as diagrams).
- Safety precautions are marked with the symbol "k" and should always be followed carefully. Workers' safety is the top priority
Komatsu WA470-3 Wheel Loader Service Repair Manual (WA470-3 Serial 50001 and up)fujsjfjskekmem
This is the Highly Detailed factory service repair manual for theKOMATSU WA470-3 WHEEL LOADER, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KOMATSU WA470-3 WHEEL LOADER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Models Covers:
WA470-3 Serial 50001 and up
Service Repair Manual Covers:
General
Structure and function
Testing and adjusting
Disassembly and assembly
Maintenance standard
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKOMATSU WA470-3 WHEEL LOADER Service Repair Workshop Manual.
Thanks for visiting!
Komatsu wa250 pt 5 wheel loader service repair manual (sn 70001 and up)ufjjsekkdmmd
This shop manual provides instructions for servicing a Komatsu WA250-5 wheel loader. It begins with safety precautions and general information. It then details the machine's structure, functions, and maintenance standards. Testing and adjusting procedures are outlined, followed by instructions for disassembly, assembly, and repair. The manual is divided into sections covering general topics, structure and function, testing and adjusting, disassembly and assembly, and others. Technicians are advised to follow the manual carefully for safe and effective repairs.
Komatsu wa900 3 wheel loader service repair manual (sn50001 and up)fujsjefksekmm
This shop manual provides service technicians with information for repairing and maintaining a WA900-3 wheel loader. It contains sections on the machine's structure and function, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual emphasizes safety precautions and provides diagrams and specifications to aid technicians in their work. It is divided into chapters that cover general information, components, and systems to help technicians efficiently find relevant repair instructions.
Komatsu wa450 3 ll wheel loader service repair manual (sn 50305 and up)fujsjefksekmm
1. This shop manual provides service information for the WA450-3LL log loader, including its structure, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards.
2. The WA450-3LL is equipped with a Komatsu S6D125 engine. The engine shop manual should be consulted for any engine service needs.
3. Safety precautions are outlined, including the proper use of tools, protective equipment, and lifting equipment to prevent injuries during service work.
Komatsu wa800 3 wheel loader service repair manual (sn 50001 and up)ufjsjekfksemm
This shop manual provides service information for the WA800-3 wheel loader. It contains sections on the machine's structure and function, testing and adjusting procedures, disassembly and assembly instructions, and maintenance standards. The manual emphasizes safety precautions and provides diagrams of hydraulic and electrical systems. Technicians can use this manual to understand how the machine operates and correctly perform repairs and inspections. It aims to improve service quality and ensure repairs are done effectively and safely.
Komatsu D475A-3 Dozer Bulldozer Service Repair Manual S/N 10601 and uphdjksmemm
This is the Highly Detailed factory service repair manual for theKOMATSU D475A-3 DOZER BULLDOZER , this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic.KOMATSU D475A-3 DOZER BULLDOZER Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly.
Service Repair Manual Covers:
General
Structure and Function
Testing and Adjusting
Disassembly and Assembly
Maintenance Standard
Others
+++++
Field Assembly Instruction
Manual Covers:
Specifications
Precautions for Field Assembly
Assembly Procedure, Necessary Equipment, and Schedule
Layout of Kit
Style for Transportation
Tools List for Field Assembly
Tightening Torque
Coating Materials
File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
Requirements: Adobe PDF Reader
NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are is great to haveKOMATSU D475A-3 DOZER BULLDOZER Service Repair Workshop Manual.
Looking for some other Service Repair Manual,please check:
https://www.aservicemanualpdf.com/
Thanks for visiting!
8
Kubota la1403 ec front loader service repair manualfjjskekdmmme
This document provides specifications and safety information for a Kubota front loader model LA1403EC. It includes:
1. Specifications for the loader model, bucket sizes, hydraulic system details, dimensions, and operational capacities.
2. Safety instructions for servicing the loader, including general precautions, safety starting and working procedures, avoiding fires, ventilation, acid burns, and emergency preparedness.
3. Terminology used to identify parts of the loader.
4. Tightening torques for screws, bolts, and hydraulic fittings on the loader.
5. Maintenance checklists and inspection procedures.
The document provides technical information and safety guidelines for servicing the Kub
Kubota la1403 front loader service repair manualfjjskekdmmme
This workshop manual provides information for servicing a Kubota LA1403 front loader. It is divided into three parts covering general information, the loader mechanism, and servicing procedures. The general section includes identification, safety, maintenance, and specifications. The mechanism section describes the construction and functions. The servicing section provides troubleshooting, repair, and assembly instructions.
Kubota kx121 2(h) excavator parts catalogue manualfjjskekdmmme
The document consists of the repeated text "classicmachinery.net" with no other substantive information. At the end, there is a brief note asking the reader to click a link for a complete manual, and to download a PDF first if there is no response to clicking the link.
John deere te gator utility vehicle service repair manualfjjskekdmmme
This technical manual provides information for servicing a Gator utility vehicle. It contains sections covering specifications, component locations, schematics, theory of operation, diagnostics, testing, repair and safety. Safety is the first section and provides instructions on battery safety, protective equipment, emergency procedures, charging batteries and acid burns. Technicians should follow all safety procedures when servicing this high voltage electrical system.
John deere pro gator 2030 utility vehicle service repair manualfjjskekdmmme
This document provides specifications for a John Deere ProGator 2030 Utility Vehicle. It includes specifications for the diesel engine, electrical system, fuel system, drive train, hydraulic system, tires, dimensions, torque specifications for fasteners, diesel fuel requirements, lubricants, and coolants. The specifications are organized into labeled sections for easy reference to details on particular systems.
John deere jx75 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions to service the mowers.
John deere je75 21 inch walk-behind mower service repair manualfjjskekdmmme
The document is a technical manual for John Deere 21-Inch Walk-Behind Mower models. It provides an introduction and overview of the manual's contents and organization. The manual contains sections on general specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, and torque specifications to assist technicians in servicing the mower models. It emphasizes reading all instructions before attempting any repairs.
John deere ja65 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions for servicing and repairing the mowers.
John deere ja62 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions to service various systems of the mower.
John deere jx85 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions for servicing and repairing the mowers.
Hyundai 40 ds 7e forklift truck service repair manualfjjskekdmmme
This document provides an overview and structure of a service manual for a machine. It contains 8 sections that cover general information, removal/installation procedures, power train, brake, steering, hydraulic, electrical, and mast systems. Each section is divided into groups that explain the structure, operation, inspection, troubleshooting, and repair of components within that system. Symbols are used to identify important safety information. Conversion tables are included to allow simple unit conversions.
Hyundai 35 ds 7e forklift truck service repair manualfjjskekdmmme
This document provides an overview and structure of a service manual for a machine. It contains 8 sections that cover general information, removal/installation procedures, power train, brake, steering, hydraulic, electrical, and mast systems. Each section is divided into groups that explain the structures, operations, inspections, troubleshooting, and maintenance procedures for the components in that system. Conversion tables are also provided at the end to allow simple conversions between different units of measurement.
Hyundai 35 bh 9 forklift truck service repair manualfjjskekdmmme
This document provides instructions for disassembling and assembling a steering unit. The major steps include:
1) Disassembling the steering unit by removing components like the end cover, gearwheel set, cardan shaft, distributor plate, check valve parts, sleeve, spool, and pressure relief valve parts.
2) Assembling the spool and sleeve with neutral position springs installed in slots. Bearing races and seals are also installed.
3) Lubricating O-rings and seals before installing them using special tools to push them into place in the housing.
4) Proper positioning and alignment of parts is important during assembly to ensure correct functioning of the steering unit.
Hyundai 33 df forklift truck service repair manualfjjskekdmmme
The document describes the structure and operation of the power train system of an industrial vehicle, including:
1. The main components of the power train system including the engine, transmission, drive shaft, drive axle, and brakes.
2. The transmission uses a torque converter and includes a forward clutch, reverse clutch, and output gear to transfer power from the input shaft to the output shaft in forward and reverse modes.
3. Oil is pumped through the system by a gear pump and controlled by a main relief valve and solenoid valve to engage the appropriate clutch for forward or reverse operation.
Hyundai 33 d 7e forklift truck service repair manualfjjskekdmmme
This document provides instructions for disassembling and assembling a steering unit. The disassembly process involves removing components like the end cover, gearwheel set, cardan shaft, distributor plate, spool, sleeve and seals. The pressure relief valve is also disassembled by removing the plug, seal washers, setting screw, spring and piston. The assembly process describes fitting components like the spool, sleeve, cross pin, bearings, O-rings and lip seal back into the steering unit housing using various tools. Special care and markings are required when assembling the neutral position springs in the spool and sleeve.
Hyundai 30 df forklift truck service repair manualfjjskekdmmme
The document describes the structure and operation of the power train system of an industrial vehicle, including:
1. The main components of the power train system including the engine, transmission, drive shaft, drive axle, and brakes.
2. The transmission uses a torque converter and includes a forward clutch, reverse clutch, and output gear to transfer power from the input shaft to the output shaft in forward and reverse modes.
3. Oil is pumped through the system by a charging pump in the torque converter and is filtered, cooled, and distributed to clutches by the transmission control valve to engage the appropriate clutch for the selected gear.
Hyundai 30 d 7e forklift truck service repair manualfjjskekdmmme
This document provides instructions for disassembling and assembling a steering unit. The main steps for disassembly are: removing the end cover and gearwheel set; taking out the cardan shaft and distributor plate; pressing out the spool, sleeve, bearing races and thrust bearing; and disassembling the pressure relief valve. The main steps for assembly are: assembling the spool and sleeve with neutral position springs; fitting the bearing races and cross pin; installing the O-rings and lip seal using assembly tools; and reassembling other components. Precautions and the correct assembly pattern are emphasized to ensure proper reassembly.
Caterpillar cat 323 d s excavator (prefix dkw) service repair manual (dkw0000...fjjskekdmmme
The document provides instructions for removing and installing a flywheel housing on a Caterpillar 3066 engine. It describes using lifting tools to remove the flywheel housing which weighs approximately 65 lbs. The procedure includes cleaning the mating surfaces, installing a new gasket, and securing the housing with bolts. Tools are also used to remove the old oil seal and install a new seal and crankshaft wear sleeve. Reinstalling the flywheel and electric starting motor completes the installation process.
Caterpillar cat 323 d s excavator (prefix cyd) service repair manual (cyd0000...fjjskekdmmme
The document provides disassembly and assembly instructions for a final drive on an excavator model 323D LN. Key steps include:
1. Removing the final drive cover, carrier assembly, sun gears, ring gears, and other components.
2. Disassembling the carrier assemblies by removing planetary gears, shafts, and bearings.
3. Assembling begins with pressing bearings into the main housing and determining the correct shim thickness. Seals, pins and other components are then installed to reassemble the final drive.
Kubota la1403 ec front loader service repair manualfjjskekdmmme
This document provides specifications and safety information for a Kubota front loader model LA1403EC. It includes:
1. Specifications for the loader model, bucket sizes, hydraulic system details, dimensions, and operational capacities.
2. Safety instructions for servicing the loader, including general precautions, safety starting and working procedures, avoiding fires, ventilation, acid burns, and emergency preparedness.
3. Terminology used to identify parts of the loader.
4. Tightening torques for screws, bolts, and hydraulic fittings on the loader.
5. Maintenance checklists and inspection procedures.
The document provides technical information and safety guidelines for servicing the Kub
Kubota la1403 front loader service repair manualfjjskekdmmme
This workshop manual provides information for servicing a Kubota LA1403 front loader. It is divided into three parts covering general information, the loader mechanism, and servicing procedures. The general section includes identification, safety, maintenance, and specifications. The mechanism section describes the construction and functions. The servicing section provides troubleshooting, repair, and assembly instructions.
Kubota kx121 2(h) excavator parts catalogue manualfjjskekdmmme
The document consists of the repeated text "classicmachinery.net" with no other substantive information. At the end, there is a brief note asking the reader to click a link for a complete manual, and to download a PDF first if there is no response to clicking the link.
John deere te gator utility vehicle service repair manualfjjskekdmmme
This technical manual provides information for servicing a Gator utility vehicle. It contains sections covering specifications, component locations, schematics, theory of operation, diagnostics, testing, repair and safety. Safety is the first section and provides instructions on battery safety, protective equipment, emergency procedures, charging batteries and acid burns. Technicians should follow all safety procedures when servicing this high voltage electrical system.
John deere pro gator 2030 utility vehicle service repair manualfjjskekdmmme
This document provides specifications for a John Deere ProGator 2030 Utility Vehicle. It includes specifications for the diesel engine, electrical system, fuel system, drive train, hydraulic system, tires, dimensions, torque specifications for fasteners, diesel fuel requirements, lubricants, and coolants. The specifications are organized into labeled sections for easy reference to details on particular systems.
John deere jx75 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions to service the mowers.
John deere je75 21 inch walk-behind mower service repair manualfjjskekdmmme
The document is a technical manual for John Deere 21-Inch Walk-Behind Mower models. It provides an introduction and overview of the manual's contents and organization. The manual contains sections on general specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, and torque specifications to assist technicians in servicing the mower models. It emphasizes reading all instructions before attempting any repairs.
John deere ja65 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions for servicing and repairing the mowers.
John deere ja62 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions to service various systems of the mower.
John deere jx85 21 inch walk-behind mower service repair manualfjjskekdmmme
This technical manual provides specifications and information for John Deere 21-inch walk-behind mowers. It includes sections on general vehicle specifications, engine specifications, electrical specifications, fuel system specifications, transmission specifications, dimensions, torque specifications, lubricant specifications, and product identification locations. The manual is intended to be a reference for technicians and contains detailed technical data, diagrams, and instructions for servicing and repairing the mowers.
Hyundai 40 ds 7e forklift truck service repair manualfjjskekdmmme
This document provides an overview and structure of a service manual for a machine. It contains 8 sections that cover general information, removal/installation procedures, power train, brake, steering, hydraulic, electrical, and mast systems. Each section is divided into groups that explain the structure, operation, inspection, troubleshooting, and repair of components within that system. Symbols are used to identify important safety information. Conversion tables are included to allow simple unit conversions.
Hyundai 35 ds 7e forklift truck service repair manualfjjskekdmmme
This document provides an overview and structure of a service manual for a machine. It contains 8 sections that cover general information, removal/installation procedures, power train, brake, steering, hydraulic, electrical, and mast systems. Each section is divided into groups that explain the structures, operations, inspections, troubleshooting, and maintenance procedures for the components in that system. Conversion tables are also provided at the end to allow simple conversions between different units of measurement.
Hyundai 35 bh 9 forklift truck service repair manualfjjskekdmmme
This document provides instructions for disassembling and assembling a steering unit. The major steps include:
1) Disassembling the steering unit by removing components like the end cover, gearwheel set, cardan shaft, distributor plate, check valve parts, sleeve, spool, and pressure relief valve parts.
2) Assembling the spool and sleeve with neutral position springs installed in slots. Bearing races and seals are also installed.
3) Lubricating O-rings and seals before installing them using special tools to push them into place in the housing.
4) Proper positioning and alignment of parts is important during assembly to ensure correct functioning of the steering unit.
Hyundai 33 df forklift truck service repair manualfjjskekdmmme
The document describes the structure and operation of the power train system of an industrial vehicle, including:
1. The main components of the power train system including the engine, transmission, drive shaft, drive axle, and brakes.
2. The transmission uses a torque converter and includes a forward clutch, reverse clutch, and output gear to transfer power from the input shaft to the output shaft in forward and reverse modes.
3. Oil is pumped through the system by a gear pump and controlled by a main relief valve and solenoid valve to engage the appropriate clutch for forward or reverse operation.
Hyundai 33 d 7e forklift truck service repair manualfjjskekdmmme
This document provides instructions for disassembling and assembling a steering unit. The disassembly process involves removing components like the end cover, gearwheel set, cardan shaft, distributor plate, spool, sleeve and seals. The pressure relief valve is also disassembled by removing the plug, seal washers, setting screw, spring and piston. The assembly process describes fitting components like the spool, sleeve, cross pin, bearings, O-rings and lip seal back into the steering unit housing using various tools. Special care and markings are required when assembling the neutral position springs in the spool and sleeve.
Hyundai 30 df forklift truck service repair manualfjjskekdmmme
The document describes the structure and operation of the power train system of an industrial vehicle, including:
1. The main components of the power train system including the engine, transmission, drive shaft, drive axle, and brakes.
2. The transmission uses a torque converter and includes a forward clutch, reverse clutch, and output gear to transfer power from the input shaft to the output shaft in forward and reverse modes.
3. Oil is pumped through the system by a charging pump in the torque converter and is filtered, cooled, and distributed to clutches by the transmission control valve to engage the appropriate clutch for the selected gear.
Hyundai 30 d 7e forklift truck service repair manualfjjskekdmmme
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2. 00-2
SHOP MANUAL
CONTENTS
No. of page
01 GENERAL ......................................................................................... 01-1
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD ...... 10-1
20 TESTING AND ADJUSTMENT...........................................................20-1
30 DISASSEMBLY AND ASSEMBLY .....................................................30-1
90 OTHERS ............................................................................................ 90-1
3. SAFETY SAFETY NOTICE
WA250PZ-5 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 N 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 WA250PZ-5
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
WA250PZ-5 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 WA250PZ-5
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
N Safety
Special safety precautions
are necessary when per-
forming the work.
D Caution
Special technical precau-
tions or other precautions
for preserving standards
are necessary when per-
forming the work.
Weight
Weight of parts of sys-
tems. Caution necessary
when selecting hoisting
wire, or when working pos-
ture is important, etc.
Tightening
torque
Places that require special
attention for the tightening
torque during assembly.
Coat
Places to be coated with
adhesives and lubricants,
etc.
Oil, water
Places where oil, water or
fuel must be added, and
the capacity.
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. GENERAL
WA250PZ-5 01- 1
01 GENERAL
General assembly drawings ......................................................................................................................... 01-2
Specifications ............................................................................................................................................... 01-3
Weight table .................................................................................................................................................. 01-7
List of lubricant and coolant .......................................................................................................................... 01-9
8. GENERAL GENERAL ASSEMBLY DRAWINGS
01- 2 WA250PZ-5
GENERAL ASSEMBLY DRAWINGS
Item Unit WA250PZ-5
Operating weight kg 12,275
Rated load kg 3,680
Bucket capacity (piled) m3 2.3
Engine model — KOMATSU SAA6D102E-2-A-Diesel engine
Flywheel horse power kW {HP} / rpm 101{135} / 2,000
A Overall length mm 7,245
B Overall height mm 3,240
C Overall height when bucket is raised mm 5,230
D Overall width mm 2,470
E Min. ground clearance mm 460
F Bucket width mm 2,550
G Dumping clearance Tip of cutting edge/Tip of tooth mm 2,840 / 2,730
H Dumping reach Tip of cutting edge/Tip of tooth mm 1,075 / 1,230
I Bucket dump angle deg. 45
Min. turning radius
Tip of cutting edge/Tip of tooth mm 5,840 / 5,920
Center of outside wheel mm 4,950
Travel speed
F1 km / h 4.0 – 13.0
F2 km / h 13.0
F3 km / h 18.0
F4 km / h 38.0
R1 km / h 4.0 – 13.0
R2 km / h 13.0
R3 km / h 18.0
R4 km / h 38.0
9. GENERAL SPECIFICATIONS
WA250PZ-5 01- 3
SPECIFICATIONS
Machine model WA250PZ-5
Serial No. H50051 and up
Weight
Operating weight kg 12,275
Distribution (front) SAE travel posture kg 5,350
Distribution (rear) SAE travel posture kg 7,270
Performance
Bucket capacity (piled) m³ 2.3
Rated load kg 3,680
Travel speed FORWARD 1st km / h 4.0 – 13.0
FORWARD 2nd km / h 13.0
FORWARD 3rd km / h 18.0
FORWARD 4th km / h 38.0
REVERSE 1st km / h 4.0 – 13.0
REVERSE 2nd km / h 13.0
REVERSE 3rd km / h 18.0
REVERSE 4th km / h 38.0
Max. rimpull FORWARD kN {kg} 96 {9,800}
REVERSE kN {kg} 96 {9,800}
Gradeability deg. 25
Min. turning radius (Center of outside
wheel)
mm 4,950
Min. turning radius [SAE travel posture]
(Tip of cutting edge)
mm 5,800
Dimensions
Overall length (Tip of cutting edge) mm 7,245
Overall width (chassis) mm 2,470
Bucket width (Without tooth/With tooth) mm 2,550
Overall height (top of cab) mm 3,240
Overall height (Bucket approx. raised to
max.)
mm 5,230
Wheel base mm 2,900
Tread mm 1,930
Min. ground clearance mm 460
Max. height of bucket hinge pin mm 3,965
Dumping clearance (Tip of cutting edge/
Tip of tooth)
mm 2,840 / 2,730
Dumping reach (Tip of cutting edge/Tip of
tooth)
mm 1,075 / 1,230
Steering angle deg. 40
Bucket tilt angle (travel posture) deg. 48
Bucket tilt angle (max. height) deg. 55
Bucket dump angle (max. height) deg. 48
Digging depth (10° dump)
(Tip of cutting edge/Tip of tooth)
mm 305 / 385
10. GENERAL SPECIFICATIONS
01- 4 WA250PZ-5
Machine model WA250PZ-5
Serial No. H50051 and up
Engine
Model SAA6D102E-2-A
Type 4-cycle, water-cooled, in-line, 6-cylinder,
direct injection with turbocharger, aftercooler
No. of cylinders - bore x stroke mm 6 – 102 x 120
Piston displacement O {cc} 5.88 {5,880}
Flywheel horsepower kW / rpm 101 / 2,000
{HP / rpm} {135 / 2,000}
Maximum torque Nm / rpm 618 / 1,400
{kgm / rpm} {63 / 1,400}
Min. fuel consumption ratio g / kWh {g / HPh} 224 {167}
High idling speed rpm 2,225
Low idling speed rpm 825
Starting motor 24 V 4.5 kW
Alternator 24 V 60 A
Battery 24 V 110 Ah x 2 pcs.
Powertrain
HST pump Variable displacement swash plate-type piston pump
HST motor 1 Variable displacement swash plate-type piston motor
HST motor 2 Variable displacement swash plate-type piston motor
Transfer Multiple shaft planetary compound-type, spur gear
constant mesh-type, 2 alternative power systems
Reduction gear Spiral bevel gear, splash lubrication type
Differential Straight bevel gear type, torque portioning
Final drive Planetary gear 1-stage, splash lubrication type
Axle
Drive type Front and rear wheel drive
Front axle Fixed to frame, semi-floating type
Rear axle Center pin support, semi-floating type
Tire
Tire size 20.5–25–L3
Rim size 25x17.00–1.7
Inflation pressure Front tire kPa {kg / cm²} 274 {2.8}
Rear tire kPa {kg / cm²} 274 {2.8}
Brakes
Main brake
Braking system 4 wheel braking, Front and rear wheel independent sys-
tem control
Brake type Enclosed wet multiple disc type
Operation method Hydraulically controlled
Control method Hydraulic power servo assisted brake
Parking brake
Braking system Speed change gear output shaft braking
Brake type Wet multiple disc type
Operation method Mechanical type
Control method Hand lever type
11. GENERAL SPECIFICATIONS
WA250PZ-5 01- 5
Machine model WA250PZ-5
Serial No. H50051 and up
Steering
control
Type Articulated steering
Control Hydraulic control
Hydraulicsystem
Hydraulicpump
Steering pump
• Type Gear type
• Delivery O / min 110
Work equipment pump
• Type Gear type
• Delivery O / min 78
Brake and cooling fan pump
• Type Gear type
• Delivery O / min 19
Transfer lubrication pump
• Type Gear type
• Delivery O / min 22
Cylinder
Steeringcylinder
Type Reciprocating piston type
Cylinder inner diameter mm 70
Piston rod diameter mm 40
Stroke mm 453
Max. length between pins mm 1,271
Min. length between pins mm 818
Liftcylinder
Type Reciprocating piston type
Cylinder inner diameter mm 130
Piston rod diameter mm 70
Stroke mm 717
Max. length between pins mm 1,950.5
Min. length between pins mm 1,233.5
Bucketcylinder
Type Reciprocating piston type
Cylinder inner diameter mm 170
Piston rod diameter mm 100
Stroke mm 491
Max. length between pins mm 1,815
Min. length between pins mm 1,335
12. GENERAL SPECIFICATIONS
01- 6 WA250PZ-5
Machine model WA250PZ-5
Serial No. H50051 and up
Hydraulicsystem
Controlvalve
Work equipment control valve
• Type 2-spool type
• Set pressure MPa {kg / cm²} 20.6 {210}
Steering valve
• Type Orbit-roll type
• Set pressure MPa {kg / cm²} 18.6 {190}
Motor
Cooling fan motor
• Type Fixed displacement piston type
Work
equipment
Link type Z bar link
Bucket edge type Flat blade with top BOC
13. GENERAL WEIGHT TABLE
WA250PZ-5 01- 7
WEIGHT TABLE
D This weight table is a guide for use when transporting or handling components.
Unit: kg
Machine model WA250PZ-5
Serial Numbers H50051 and up
Engine (without coolant and oil)
Cooling assembly (without coolant)
Cooling fan motor
Damper
HST pump
HST motor 1
HST motor 2
Transfer
Front drive shaft
Rear drive shaft
Front axle
Rear axle
Axle pivot (rear axle)
Wheel (each)
Tire (each)
Orbit-roll valve
Priority valve
Steering cylinder assembly (each)
Brake valve
Hydraulic tank (without hydraulic oil)
4-gear pump unit
Work equipment PPC valve
Attachment PPC valve
Work equipment control valve
Lift cylinder assembly (each)
Bucket cylinder assembly
Engine hood (with side panel)
Front frame
Rear frame
608
54
6
3
60
59
59
211
18
4
555
492
79
130
147
7
6
18
10
59
40
3
1
26
104
220
164
1,015
704
14. GENERAL WEIGHT TABLE
01- 8 WA250PZ-5
Unit: kg
Machine model WA250PZ-5
Serial Numbers H50051 and up
Lift arm (including bushing)
Bucket (2.1m2
, excluding BOC)
Bucket (2.0m2
, including tooth)
Tilt lever
Quick coupler
Coupler plunger Ass’y
Bucket link
Counterweight
Additional counterweight (1 piece)
Fuel tank (without fuel)
Battery (each)
Operator’s Cab (including air conditioner and interior parts)
Operator’s seat
906
—
840
232
383
4
68
1,770
50/125
79
33
755
41
15. GENERAL LIST OF LUBRICANT AND COOLANT
WA250PZ-5 01- 9
LIST OF LUBRICANT AND COOLANT
WA250PZ-5
LUBRICANTS, FUELS AND FILLING CAPACITIES
Lubricant and
operating
medium
Short code /
cask lettering
Quality grade
Temperature
range
Viscosity
range
Filling
capacitiyin
litres
Engine Engine oil
EO 0030A
EO 0540A
EO 10
EO 30
EO 1030A
EO 1540A
ACEA E5
or, if not available:
API CD or API CE or
API CF -4
-30° up to 40° C
-25° up to 40° C
-20° up to 10° C
0° up to 40° C
-20° up to 40° C
- 15° up to 50° C
SAE 0W-30
SAE 5W-40
SAE 10
SAE 30
SAE 10W-30
SAE 15W-40 *)
20
(19,5 **)
Transfer case Transmission oil TO 10
ACEA E5
or, if not available:
API CD or API CE or
API CF -4
-30° up to 40° C SAE 10W*)
7,7
(6,9 **)
Hydraulic
system
Hydraulic oil
HYD 0530
HYD 1030
HVLP, HVLP D
-30° up to 40° C
-20° up to 30°C
ISO VG46 *)
ISO VG68
135
(67**)
or Engine oil EO 1030A
ACEA E5
or, if not available:
API CD or API CE or
API CF -4
-30° up to 40° C SAE 10W-30
Axle with
standard
differential
Axle oil
AXO 80 (*2)
AXO
Shell: DONAX TD5W-30 ***)
80W
SAE 5W-30 *)
each 18
(each 18**)
or Engine oil EO 30
ACEA E5
or, if not available:
API CD or API CE or
API CF -4
0° up to 40° C SAE 30
Axle with
limited-slip
differential (*3)
Axle oil(*4) AXO
Shell: DONAX TD5W-30 ***)
Esso: TORQUE FLUID56****)
Mobil: MOBILFLUID 424
Fuchs: TITAN HYDRA ZF 20W-40
SAE 5W-30*)
SAE 20W-40
Fuel tank Diesel fuel
ASTM D975 No.1
ASTM D975 No.2
DIN-EN 590
CFPP class B
CFPP class D
CFPP class F
-30° up to -10° C
-10° up to 40° C
0° up to 40° C
-10° up to 40° C
-20° up to 40° C
----- 184
Grease nippels
Multi purpose
grease on a
lithium base
MPG-A KP2N-20 -30° up to 40° C NLGI-No. 2 ---
Grease box of
central lubrica-
tion unit
Multi purpose
grease on a
lithium base
MPG-A KP2N-20 -30° up to 40° C NLGI-No. 2 ---
Cooling system
Water and
coolant
AF-NAC
TEXACO: Havoline XLC *) *****)
Tanigawa Oil: NA2001
CCI: L246
TOTAL FINA ELF: GlLACELF CHP SUPRA
Showa: MCR20
19
Air conditioner Coolant NRS R134a (CFC-free) 860 g
* Work filling
** Top-up quantity
*** North American manufacted DONAX TD 20W-40 must not be used.
**** North American manufacted TORQUE FLUID 56 must not be used.
***** Proportion of mixture: 50% coolant : 50% water, Min. freeze proofing: -35°C
16. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
WA250PZ-5 10-1
10 STRUCTURE, FUNCTION AND
MAINTENANCE STANDARD
Engine mount and transfer mount ...................10-2
Damper ............................................................10-3
Cooling system ................................................10-4
Power train ......................................................10-5
Power train system diagram ............................10-6
Drive shaft (propeller shaft) .............................10-8
HST hydraulic piping diagram .........................10-9
HST pump .....................................................10-10
High-pressure relief valve ..............................10-12
Low-pressure relief valve ...............................10-14
HST charge pump .........................................10-15
Speed-related valve (DA valve) .....................10-16
High-pressure cut-off valve ............................10-17
HST motor .....................................................10-18
EP servo valve ...............................................10-21
HA servo valve ..............................................10-22
Forward-reverse shuttle valve .......................10-23
Transfer .........................................................10-24
Transfer oil cooler ..........................................10-35
Clutch solenoid valve .....................................10-36
Axle ................................................................10-37
Differential .....................................................10-40
Limited-slip differential ...................................10-46
Final drive ......................................................10-52
Axle mounting and center hinge pin ..............10-58
Steering piping ...............................................10-63
Steering column .............................................10-64
Priority valve ..................................................10-65
Orbit-roll valve ...............................................10-68
2-way restrictor valve .....................................10-76
Steering cylinder ............................................10-77
Emergency steering piping ............................10-79
Emergency steering valve .............................10-80
Brake piping ...................................................10-83
Brake valve ....................................................10-84
Inching valve ..................................................10-88
Charge valve .................................................10-90
Accumulator (for brake) .................................10-94
Slack adjuster ................................................10-95
Brake .............................................................10-98
Parking brake control ...................................10-103
Parking brake ..............................................10-104
Hydraulic piping ...........................................10-106
Work equipment lever linkage .....................10-108
Hydraulic tank ..............................................10-112
4-gear pump unit ......................................... 10-114
Accumulator (for ppc circuit) ....................... 10-116
Lock valve ................................................... 10-117
Bypass valve ............................................... 10-118
E.C.S.S. valve ............................................. 10-121
Accumulator (for E.C.S.S.) .......................... 10-123
Hydraulic piping of cooling system .............. 10-124
Cooling fan motor ........................................ 10-125
Work equipment control valve ..................... 10-127
Work equipment PPC valve ........................ 10-140
Attachment PPC valve ............................... 10-152
Work equipment linkage ............................. 10-156
Bucket ......................................................... 10-158
Control of bucket positioner, boom kick-out 10-159
Work equipment cylinder ............................ 10-169
Air conditioner ............................................. 10-171
Machine monitoring system ........................ 10-172
Machine monitor ......................................... 10-182
List of items displayed on monitor ............... 10-183
Electrical system (HST controller system) ....... 10-209
HST controller ............................................. 10-213
Function of selecting forward-reverse
selector switch ...................................... 10-214
Engine start circuit ...................................... 10-216
Engine stop circuit ....................................... 10-218
Preheating circuit
(automatic preheating system)..................... 10-219
Parking brake circuit ................................... 10-220
Electronically controlled suspension system ..... 10-223
Sensors ....................................................... 10-224
17. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
10-2 WA250PZ-5
ENGINE MOUNT AND
TRANSFER MOUNT
ENGINE MOUNT AND TRANSFER MOUNT
18. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD DAMPER
WA250PZ-5 10-3
DAMPER
Unit: mm
3. Coupling
4. Boss
5. HST pump input shaft
6. Cover
7. Flywheel
Outline
• The damper reduces the torsional vibration
caused by fluctuation of the engine torque to
protect the drive system after the engine from
the torsional vibration.
• The power from the engine is transmitted
through flywheel (7) to coupling (3), which ab-
sorbs the torsional vibration, and then transmit-
ted through boss (4) to the HST pump.
No. Check item Criteria Remedy
1
Distance between HST pump
mounting face and tip of boss
Standard size Repair limit
Adjust
75.1 ± 0.8
2
Wear of internal teeth of cou-
pling (plastic)
Repair limit: 1.0 Replace
19. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD COOLING SYSTEM
10-4 WA250PZ-5
COOLING SYSTEM
25.Oil cooler
26.Charge air cooler
27.Radiator
28.Reservoir tank
29.Cooling fan
30.Cooling fan motor
Specification
Radiator Oil cooler Charge air cooler
Core type AL WAVE–4 CF40–1
Fin pitch (mm) 3.5 / 2 3.5 / 2 4.0 / 2
Total heat radiating area (m2
) 27.9 4.67 7.23
Pressure valve opening pressure
(kPa {kg/cm2
})
68.6
{0.7}
— —
Vacuum valve opening pressure
(kPa {kg/cm2
})
0 – 4.9
{0 – 0.05}
— —
20. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD POWER TRAIN
WA250PZ-5 10-5
POWER TRAIN
1. Engine
2. Damper
3. HST pump
4. 4-gear pump unit
5. High-pressure hose
6. HST motor 1
7. HST motor 2
8. Transfer
9. Front drive shaft
10. Front axle
11. Rear drive shaft
12. Rear axle
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22. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD POWER TRAIN SYSTEM DIAGRAM
10-6 WA250PZ-5
POWER TRAIN SYSTEM DIAGRAM
23. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD POWER TRAIN SYSTEM DIAGRAM
WA250PZ-5 10-7
1. Engine
2. Damper
3. HST pump
4. Steering pump
5. Work equipment pump
6. Brake and cooling fan pump
7. Transfer lubricating oil pump
8. High-pressure hose
9. HST motor 1
10. HST motor 2
11. Emergency steering valve
12. Transfer
13. Transfer clutch
14. Parking brake
15. Front drive shaft
16. Front axle
17. Differential
18. Wet multiple disc brake
19. Final drive
20. Front tire
21. Rear drive shaft
22. Rear axle
23. Differential
24. Wet multiple disc brake
25. Final drive
26. Rear tire
Outline
• The power of engine (1) is transmitted to HST
pump (3) through damper (2) which is installed
to the flywheel and which absorbs the torsional
vibration of the power,
• The power of engine (1) is also transmitted to
HST pump (3), HST charge pump built in HST
pump (3), steering pump (4) connected to HST
pump (3), work equipment pump (5), brake and
cooling fan pump (6), and transfer lubricating oil
pump (7).
• HST pump (3) is equipped with the forward-re-
verse shifting valve and servo piston, which
changes the discharge direction and discharge
rate of HST pump (3) continuously by changing
the swash plate angle.
• HST motors (9) and (10) are installed to transfer
(12) and connected to HST pump (3) by high-
pressure hose (8).
• The turning direction and speed of HST motors
(9) and (10) are changed by the hydraulic power
of HST pump (3) to control the travel direction
and travel speed of the machine.
• The power of HST motor 1 (9) is transmitted
through transfer clutch (13) in transfer (12) to the
output shaft.
The power of HST motor 2 (10) is transmitted
through the gear in transfer (12) to the output
shaft.
• Parking brake (14) is installed on the rear side in
transfer (12). It operates the wet multiple disc
brake to stop the machine according to the oper-
ation of the parking brake lever.
• The power for the front side is transmitted
through front drive shaft (15) to front axle (16).
The power for the rear side is transmitted
through rear drive shaft (21) to rear axle (22).
• The power transmitted to axles (16) and (22) is
reduced in speed by the pinion gears of differen-
tials (17) and (23), and then transmitted through
the sun gear shaft to the sun gear.
• The power of the sun gear is reduced in speed
by the planetary mechanisms of final drives (19)
and (25), and then transmitted through the axle
shaft and wheels to tires (20) and (26).
24. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD DRIVE SHAFT (PROPELLER SHAFT)
10-8 WA250PZ-5
DRIVE SHAFT (PROPELLER SHAFT)
1. Front axle
2. Front drive shaft
3. Transfer
4. Rear drive shaft
5. Rear axle
Outline
• The power from the output shaft of the transfer
is transmitted through front drive shaft (2) and
rear drive shaft (4) to front axle (1) and rear axle
(5).
• When the machine is articulated or it receives an
impact from the road during travel or a working
impact, the positions of the transfer and front
and rear axles change. The drive shafts can
change their angles and lengths by means of the
universal joints and sliding joints so that the
power will be transmitted without damaging any
part even when the positions of the components
change because of the impacts.