This comprehensive Komatsu WA800-3 Wheel Loader Field Assembly Manual provides detailed instructions for assembling your machine safely and effectively. It covers everything from initial disassembly and layout to final adjustments and maintenance procedures. The manual features a wealth of information, including:

* **General Drawings and Transportation Specifications:** Gain a clear understanding of the machine's layout and transportation requirements.
* **Detailed Drawings of Disassembled Units:** Visual references for each component, ensuring accurate identification and assembly.
* **Dimensions of Removed Units:** Precise measurements to guide you during installation and alignment.
* **Layout of Work Space:** Clear instructions for organizing your workspace, ensuring an efficient assembly process.
* **Necessary Tools:** A complete list of tools required for the assembly, ensuring you have everything on hand.
* **Equipment and Sling Requirements:** Information on the necessary equipment and slings for lifting and moving components safely.
* **Oils, Greases, and Paints:** Specific recommendations for the fluids and materials needed for your machine.
* **Assembly Schedule:** A step-by-step guide for efficient and organized assembly.
* **Coupling Front and Rear Frames:** Detailed instructions for correctly joining the machine's main structures.
* **Steering Pin Installation:** Proper installation procedures for the steering system.
* **Drive Shaft Installation:** Clear steps for connecting the drive shaft and ensuring proper alignment.
* **Piping Connections:** Detailed guidance for connecting all necessary hoses and lines.
* **Positioning Axles and Installing Supports:** Instructions for aligning and securing the axles and their supports.
* **Positioning the Bare Machine:** Steps for accurately placing the machine in its assembly location.
* **Installing the Rear Axle:** Detailed procedures for installing and securing the rear axle.
* **Installing Cover on the Rear Axle Side:** Instructions for attaching the protective cover.
* **Installing Rear Axle Piping and Drive Shaft:** Procedures for connecting the piping and drive shaft to the rear axle.
* **Installing the Front Axle:** Detailed instructions for installing the front axle and ensuring proper alignment.
* **Installing Front Axle Piping and Connecting Drive Shaft:** Connecting the necessary piping and drive shaft to the front axle.
* **Installing Tires:** Proper procedures for installing and securing the tires.
* **Installing the Fuel Tank:** Clear instructions for installing and securing the fuel tank.
* **Installing Drain Line:** Connecting the drain line for fuel tank maintenance.
* **Connecting and Fixing Fuel Piping:** Detailed instructions for connecting and securing the fuel lines.
* **Fixing Engine Drain Hoses:** Procedures for connecting and securing the engine drain hoses.
* **Installing the Ladder (Right):** Proper installation procedures for the right-side ladder.
* **Installing the Floor and Cab Assembly:** Detailed instructions for installing the floor and cab assembly.
* **Connecting Air Conditioner Hoses:** Connecting the hoses for the air conditioning system.
* **Connecting the Brake Line:** Proper installation procedures for the brake system.
* **Connecting PPC Line Hoses:** Instructions for connecting the hoses for the hydraulic system.
* **Connecting Wiring Harnesses:** Detailed guidance for connecting all electrical wiring harnesses.
* **Connecting the Steering Oil Line:** Instructions for connecting the steering oil line.
* **Connecting the Throttle Cable:** Connecting and adjusting the throttle cable.
* **Installing the Floor Cover:** Securing the floor cover.
* **Connecting the Windshield Washer Hose and Supplying Washer Fluid:** Proper procedures for installing the windshield washer system.
* **Installing the Battery Box Assembly:** Detailed instructions for installing the battery box assembly.
* **Wiring the Battery:** Connecting the battery wires and ensuring proper polarity.
* **Battery Wiring Diagram:** A clear diagram showing battery connections.
* **Installing the Battery Step:** Procedures for installing the battery step.
* **Installing the Handrail (to Right Bracket):** Proper installation procedures for the handrail.
* **Installing the Handrail (to Right Battery Box and Top Hood):** Connecting the handrail to the battery box and top hood.
* **Installing the Rear Access Step:** Procedures for installing the rear access step.
* **Installing the Left Handrail:** Proper installation procedures for the left-side handrail.
* **Installing Rear View Mirrors:** Connecting the rear view mirrors.
* **Installing the Muffler Pipe:** Proper installation procedures for the muffler pipe.
* **Installing the Counterweight:** Detailed instructions for installing the counterweight.
* **Installing the Front Lamp Assembly:** Connecting the front lamp assembly.
* **Installing the ROPS Canopy Assembly:** Proper installation procedures for the ROPS canopy assembly.
* **Installing the Antenna and Working Lamp:** Connecting the antenna and working lamp.
* **Installing the Floor Mat:** Securing the floor mat.
* **Installing Front Fenders:** Detailed instructions for installing the front fenders.
* **Procedure for Starting the Engine:** Steps for starting the engine after assembly.
* **Installing the Boom Assembly:** Connecting the boom assembly.
* **Connecting Remote Grease Tubes:** Connecting the grease tubes for lubrication.
* **Preparing for Installing the Bucket:** Preparing the machine for bucket installation.
* **Procedure for Installing the Bucket:** Detailed instructions for installing the bucket.
* **Adjusting the Bucket Positioner:** Adjusting the bucket positioner system.
* **Adjusting the Boom Kick-out:** Adjusting the boom kick-out for proper operation.
* **Adjusting the Drive Force UP Switch:** Adjusting the drive force switch.
* **Procedure for Bleeding Air from Work Equipment Circuit:** Bleed air from the hydraulic system after assembly.
* **AJSS Specification (if equipped):** Detailed information on the AJSS system, if equipped.
* **Appendix:** Additional information and reference materials.
* **Field Assembly Inspection Report:** A checklist for inspecting the machine after assembly.

This comprehensive manual is your essential guide for assembling your Komatsu WA800-3 Wheel Loader, ensuring it is ready for safe and efficient operation.

The Komatsu WA800-3 wheel loader is a heavy-duty construction machine designed for large-scale earthmoving and material handling operations. It boasts a powerful engine and a robust frame, capable of tackling demanding tasks in a wide range of applications, including mining, quarrying, construction, and industrial projects. The WA800-3 features a spacious and ergonomically designed operator's cab, offering excellent visibility and control over the machine's operations. The cab is equipped with a comfortable seat, a comprehensive instrument panel, and a range of adjustable controls for operator comfort and productivity.

The Komatsu WA800-3 wheel loader comes equipped with a powerful Komatsu SAA6D170E-4 engine, delivering impressive power and torque for efficient operation. The engine is specifically designed to meet stringent emissions standards, while its durable construction ensures long-term reliability. The machine's robust drivetrain incorporates a heavy-duty transmission and powerful axles, allowing it to handle heavy loads and navigate challenging terrain with ease. The WA800-3's hydraulic system delivers smooth and responsive operation of the loader arms and bucket, enabling efficient loading and unloading of materials. The hydraulic system incorporates advanced features such as automatic boom and bucket positioning for operator convenience and enhanced productivity. The Komatsu WA800-3 wheel loader is designed with a high level of safety features, including an emergency stop system, a comprehensive warning system, and a durable ROPS/FOPS cab that protects the operator from potential hazards.