
Komatsu GD621R-1 Motor Grader Workshop Service Manual
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This workshop service manual is for the Komatsu GD621R-1 Motor Grader with serial numbers 10001 and up. It is an instant digital download, eliminating shipping costs and waiting time for a physical manual. The manual is available in English and is printable using Adobe Reader on Windows, Mac, and Linux OS.
The manual provides comprehensive data, characteristics, instructions, and methodology for repair interventions on the vehicle and its components. It includes special notes, important points, service data, precautions, and detailed, comprehensive step-by-step procedures, explanations, and pictorial diagrams from bumper to bumper.
Useful for both professional mechanics and DIY enthusiasts, this manual offers detailed illustrations, exploded diagrams, drawings, and photos to guide through every service repair procedure. It also covers adjustment and repair operations, referencing service tool numbers and providing wear limits for the motor grader.
With a focus on simplifying repair work, the manual contains information about the construction, function, troubleshooting, servicing specifications, tightening torque, checking and adjusting, disassembling, assembling, and servicing procedures. It is divided into groups containing general information, diagnosis, testing, adjustments, removal, installation, disassembly, and assembly procedures for the systems and components.
For safety and efficiency, the manual outlines procedures for servicing and repairing vehicles using safe, effective methods, along with notes, cautions, and warnings to be followed. It emphasizes the importance of following maintenance requirements, using genuine parts, and keeping complete records of all maintenance and repairs.
Designed primarily for trained technicians, the manual also provides basic information for owners interested in performing their own maintenance and repair work, assuming they have the necessary tools and knowledge. It includes technical information, photographs, notes, drawings, schematics, exploded and sectional drawings, as well as valuable reference data for adjustment values.
For all maintenance and repair work, accident prevention guidelines must be strictly observed, and the necessary standard and special tools are required. The manual also includes safety measures, torque values, and emphasizes the use of genuine parts to maximize the life of the motor grader.
This comprehensive service manual is 100% complete and intact, providing detailed information for workshop repair. It is a valuable resource for anyone involved in the maintenance and repair of the Komatsu GD621R-1 Motor Grader.
- ENGINE
- ENGINE BODY
- CYLINDER BLOCK
- HALF-FLOATING HEAD COVER
- CYLINDER HEAD
- CENTER DIRECT INJECTION SYSTEM (E-CDIS)
- PISTON
- LUBRICATING SYSTEM
- OIL COOLER
- COOLING SYSTEM
- THERMOSTAT
- FUEL SYSTEM
- INJECTION PUMP
- INDUCTION SYSTEM
- WATER PUMP
- INTAKE SYSTEM
- TRAVELING CLUTCH
- HYDRAULIC SHUTTLE
- SYNCHRO SHUTTLE
- CLUTCH
- POWER TRAIN
- HYDRAULIC SHUTTLE VALVE
- MAIN GEAR SHIFT SECTION
- TRANSMISSION
- LUBRICATION FOR TRANSMISSION
- REAR AXLE
- FRONT AXLE
- TRAVELING BRAKE
- MASTER CYLINDER ASSEMBLY
- PARKING BRAKE
- STEERING MECHANISM
- STEERING CYLINDER
- HYDRAULIC SYSTEM
- HYDRAULIC CIRCUIT
- HYDRAULIC BLOCK
- HYDRAULIC CYLINDER
- ELECTRICAL CIRCUIT
- ROPS MODEL
- CABIN MODEL
- UNDERCARRIAGE AND FRAME
- STARTING MOTOR
- ALTERNATOR
- RADIATOR
- HYDROSHIFT TRANSMISSION
- BLADE
- HYDRAULIC CONTROL VALVE
- HYDRAULIC PUMP
- TRACK FRAME
- BODY
- FRAMEWORK
- STARTING SYSTEM
- SYSTEM OUTLINE AND ELECTRICAL CIRCUIT
- LIGHTING SYSTEM
- AIR CONDITIONING SYSTEM
- WIRING DIAGRAM
And more...