**Komatsu WA800-3 Wheel Loader: A Titan of Earthmoving**
**Introduction**
The Komatsu WA800-3 wheel loader is a formidable workhorse designed to tackle the most demanding earthmoving applications. This highly engineered machine combines power, precision, and durability to deliver exceptional performance and productivity.
**Exceptional Power and Performance**
At the heart of the WA800-3 lies a potent 15-liter Komatsu SAA6D140E-7 engine, delivering 523 horsepower (390 kW). This turbocharged and intercooled engine provides ample torque and power to efficiently handle even the heaviest loads. An advanced hydraulic system with variable displacement pumps ensures optimal flow and pressure, enabling fast and responsive operation.
**Advanced Load-Handling Capabilities**
The WA800-3 features a robust articulated frame with a heavy-duty boom and bucket linkage. The long wheelbase and wide stance provide exceptional stability, while the high-strength steel construction ensures durability under extreme conditions. The large-capacity bucket, available in various configurations, allows for efficient material handling and reduces cycle times.
**Precision and Control**
Despite its massive size, the WA800-3 offers exceptional precision and control. The advanced hydraulics system enables smooth and accurate movements, while the joystick controls provide intuitive and effortless operation. Load Sensing and Flow Amplification Systems automatically adjust hydraulic flow and pressure based on load conditions, optimizing performance and efficiency.
**Operator Comfort and Functionality**
The WA800-3 prioritizes operator comfort and convenience. The spacious cab is ergonomically designed with a fully adjustable seat, climate control, and an advanced instrument panel. The panoramic windows offer excellent visibility, ensuring enhanced safety and productivity. The digital display provides real-time machine data and diagnostic information, allowing operators to monitor performance and maintain peak efficiency.
**Advanced Safety Features**
To ensure operator safety, the WA800-3 is equipped with comprehensive safety systems. Roll-Over Protective Structure (ROPS) and Falling Object Protective Structure (FOPS) meet stringent industry standards, providing protection in the event of an accident. An advanced braking system with anti-lock technology ensures controlled stopping power, while the rearview and backup cameras provide enhanced visibility.
**Durability and Serviceability**
Built to withstand the rigors of demanding work environments, the WA800-3 is engineered for exceptional durability. Heavy-duty components and advanced sealing systems ensure extended component life and reduced maintenance. The well-designed layout allows for easy access to service points, facilitating routine maintenance and minimizing downtime.
**Sustainability and Emissions Compliance**
The Komatsu WA800-3 is committed to environmental sustainability. The Tier 4 Final engine features advanced emission reduction technologies to meet strict environmental regulations. The machine also employs intelligent fuel management systems to optimize fuel efficiency, reducing operating costs and emissions.
**Conclusion**
The Komatsu WA800-3 wheel loader is a true powerhouse in the earthmoving industry. Its exceptional power, precision, durability, and operator-centric features make it the ideal choice for a wide range of applications. Whether you're working in construction, mining, or any other demanding industry, the WA800-3 is the perfect partner for tackling your toughest challenges.
Komatsu WA800-3 work shop manual.
This is a factory work shop manual
pages 1224
This factory service manual has easy-to-read text sections with top quality diagrams, pictures and illustrations. The step by step instructions show you how to fault find or complete any repair or overhaul, correctly and efficiently, saving time and avoiding cockups. All specifications
and tolerances are listed. Functions of components are also explained.
Komatsu WA800-3 Wheel Loader---50001 and up
Service Repair Manual Covers:
Forward and safety
General
General assembly drawing.... .Ol-2
Specifications .............. 01-3
Weight table ................ 01-6
List of lubricant and water. 01-8
Structure and Function
Power train ..................10- 2
Power train system ...........10- 3
Engine control ...............10- 4
Servo cylinder ...............10- 5
Radiator and cooler ..........10- 9
Damper........................10-10
Torque converter and transmission piping .....10-11
Transmission hydraulic diagram ...............10-12
Transmission hydraulic
circuit diagram ..............................10-13
Torque converter .............................10-14
Transmission .................................10-19
Transfer .....................................10-27
Transmission control valve ...................10-28
Torque convertor oil cooler ..................10-46
Drive shaft ..................................10-47
Center support ...............................10-48
Axle..........................................10-49
Final drive ..................................10-54
Axle mount ...................................10-56
Center hinge pin..............................10-58
Tire and wheel................................10-59
Steering piping diagram ......................10-60
Steering column ..............................10-61
Joystick linkage .............................10-61-1
Steering pump.................................10-62
Switch pump ..................................10-64
Steering demand valve ........................10-66
Steering unit (Orbit-roll valve) .............10-77
Proportional solenoid valve ..................10-79-1
EPC valve ....................................10-79-2
Rotary valve .................................10-79-3
Tow-way restrictor valve .....................10-80
Diverter valve ...............................10-81
Brake piping .................................10-86
Brake circuit diagram.........................10-88
Brake valve ..................................10-90
Charge valve .................................10- 95
Accumulator (for brake) ......................10- 99
Slack adjuster ...............................10-100
Brake ........................................10-103
Parking brake ................................10-104
Spring cylinder ..............................10-106
Parking brake solenoid valve .................10-107
Hydraulic piping .............................10-108
Work equipment hydraulic circuit diagram .. ..10-112
Work equipment lever linkage .................10-115
Hydraulic tank ...............................10-116
Main piston pump..............................10-119
ES valve .....................................10-127
Servo valve ..................................10-129
PPC valve ....................................10-132
PPC relief valve .............................10-136
Accumulator (for PPC valve) ..................10-137
Work equipment control lever .............. 10-37-1
Work equipment EPC valve .................. ..10-137-4
Work equipment neutral lock
solenoid valve ...............................10-137-7
Main control valve ...........................10-138
Lubrication of work equipment ................10-152
Work equipment linkage .......................10-154
Bucket positioner and boom kick-out ..........10-156
Operation of proximity switch ................10-158
Cab...........................................10-162
ROPS canopy ..................................10-163
Air conditioner ..............................10-164
Electric circuit diagram .....................10-167
Machine monitor system........................10-168
Main monitor .................................10-170
Maintenance monitor...........................10-176
Multi monitor system (if equipped) ......... .10-177-1
Work equipment control system ......... ......10-177-23
Work equipment controller................... .10-177-29
Engine starting circuit ......................10-178
Engine stop circuit ..........................10-179
Preheating circuit ...........................10-180
Electric transmission control.................10-181
Kick-down, hold switch .......................10-184
Joystick steering system .....................10-184-1
AJSS (Advanced joystick
steering system) .............................10-184-6
Electric parking brake control ...............10-185
Testing and Adjusting
Standard value table
Standard value table for engine.............. 20- 2
Standard value table for chassis.. ...........20- 3
Standard value table for electrical parts ....20- 9
Testing and adjusting ........................20-101
Trouble shooting..............................20-201
Disassembly and Assembly..30-172 .............30-268
Maintenance Standard......40-2................40-56
Others Electric circuit diagrams...90-3.......90-35
And More......
