Komatsu WA800-3E0 WA900-3E0 Wheel Loader Operation & Maintenance Manual – TEN00650-06

Description

This Komatsu WA800-3E0 WA900-3E0 Wheel Loader Operation & Maintenance Manual is the complete factory operation and maintenance guide for the Komatsu WA800-3E0 and WA900-3E0 wheel loaders, covering machines with serial numbers WA800-70075 and up and WA900-60207 and up. Document number TEN00650-06, this 377-page manual walks through every aspect of safe operation, daily inspection, scheduled maintenance, troubleshooting, and specification data for both wheel loader models. Whether you operate, service, or maintain one of these large wheel loaders, the manual gives you the procedures and reference values needed to keep the machine running correctly and safely.

File Details

• Manual Type: Operation and Maintenance Manual
• Brand: Komatsu
• Models Covered: WA800-3E0, WA900-3E0 Wheel Loader
• Serial Numbers: WA800-70075 and up; WA900-60207 and up
• Document Number: TEN00650-06
• Language: English
• Page Count: 377 pages
• File Format: PDF
• Publication Date: December 2016

Chapters Covered

• Introduction – Use of machine, front/rear and left/right directions, visibility from the operator’s seat, service meter position, serial number and distributor record table
• Safety Information – Signal words, hazard identification, and safety alert symbols
• Safety Labels – Locations, contents, and handling of all machine safety decals
• General Precautions Common to Operation and Maintenance – Fire prevention, getting on and off the machine, protective structures, unauthorized modification, running the engine inside a building
• Precautions for Operation – Jobsite investigation, loose ground, high-voltage cables, visibility, asbestos dust, starting the engine, booster cables, starting aid connector
• Operation – General view of machine and controls, machine monitor system, meter displays, warning displays, switches, control levers and pedals, work equipment operation, remote positioner, moving and stopping, turning, travel on slopes, work operations (digging, leveling, load and carry), parking, locking
• Maintenance – Guides to maintenance, outlines of service, wear parts list, recommended fuel/coolant/lubricant, standard tightening torques, periodic replacement of safety-critical parts, maintenance schedule chart (every 50, 100, 250, 500, 1000, 2000, 4000, 8000 hours), service procedures, troubleshooting
• Specifications – Operating weights, dimensions, engine ratings, travel speeds, bucket capacities for both models
• Attachments and Options – Auto-greasing system, brake cooling system, 55 degrees C specification, service center, emergency engine stop switch, battery disconnect switch, starting aid connector, centralized breather, hydraulic oil level warning display
• Handling Machines Equipped with KOMTRAX Plus – Basic precautions for the machine management and communications system

The manual is organized into clearly numbered sections so a technician can move from a safety label lookup straight into an operation procedure, then into the specific maintenance interval for the component at hand. The maintenance chapter alone covers everything from a daily walk-around check to every 8000-hour service item, with torque figures, fluid capacities, and step-by-step replacement procedures written for the WA800-3E0 and WA900-3E0 as built.

What This Manual Helps You Do

The Komatsu WA800-3E0 WA900-3E0 Wheel Loader Operation & Maintenance Manual is not a generic guide – it is the document that tells you how this specific machine is meant to be operated and serviced. The operation section explains the machine monitor, warning displays, control levers, remote positioner, and travel procedures including slope operation and load-and-carry technique. The maintenance section lays out every scheduled service interval from 50 hours through 8000 hours, covering engine oil and filter changes, fuel prefilter and main filter replacement, transmission oil and strainer service, hydraulic tank oil and filter changes, axle oil service, brake oil service, fan belt replacement, and the periodic replacement schedule for safety-critical parts such as hoses, seals, and the seat belt.

For troubleshooting, the manual includes an electrical system fault table, a chassis fault table covering transmission, axle, brakes, and steering, a hydraulic system fault table, and an engine fault table. There is also a section on reading action codes and failure codes from the machine monitor and engine service monitor, which is essential for diagnosing electronically controlled systems without guesswork.

Key Systems and Components Covered

• Engine: Komatsu SAA12V140E diesel engine, including prelube system, preheating, turbocharger protection, and fuel system air bleeding
• Transmission and Torque Converter: Auto shift and manual shift modes, kickdown switch, hold switch, transmission cut-off function, and shift-down control at high speed
• Steering: AJSS lever, steering lock lever, emergency steering system, and steering hydraulic circuit warm-up in cold weather
• Brakes: Service brakes, parking brake, brake accumulator function check, brake cooling system (optional), and brake oil circuit air bleeding
• Hydraulics: Lift arm and bucket control, remote positioner, PPC circuit, hydraulic tank air bleeding, and hydraulic filter and strainer service
• Electrical: Machine monitor, maintenance monitor, engine service monitor, fuse box layouts, circuit breakers, slow blow fuses, battery disconnect switch, and starting aid connector
• Safety Systems: ROPS/FOPS protective structures, frame lock bar, work equipment lock lever, steering lock lever, backup alarm, and emergency engine stop switch

Why This Komatsu WA800-3E0 WA900-3E0 Operation & Maintenance Manual Matters

Every procedure in this manual is tied to the specific systems and configurations of the WA800-3E0 and WA900-3E0 wheel loaders. Using the correct inspection intervals, torque values, fluid capacities, and operating techniques protects the machine from premature wear and helps avoid the costly downtime that comes from guessing. The manual covers everything from a daily walk-around check to major component maintenance, along with the safety precautions that apply to a machine of this size and capacity.

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Delivered as an instant PDF download after checkout, the Komatsu WA800-3E0 WA900-3E0 Wheel Loader Operation & Maintenance Manual can be viewed on any device, printed for the shop, or kept on a phone or tablet for quick reference in the field. No shipping, no waiting – download it once and have the complete manual available whenever you need it.