Komatsu WA600-3 & WA600-3D Wheel Loader Shop Manual – SEBM013216 PDF Repair Guide (Serial 50001 & Up)

Description

File Details

• Manual Type: Shop Manual (Service & Repair)
• Brand: Komatsu
• Models Covered: WA600-3, WA600-3D (TBG Spec.)
• Engines Covered: SA6D170E-2, SAA6D170E-3
• Serial Numbers: WA600-3 50001 and up; WA600-3D 50001 and up
• Document Number: SEBM013216
• Language: English
• Page Count: 1246 pages
• File Format: PDF

Chapters Covered

• 01 General
• 10 Structure and Function
• 20 Testing and Adjusting
• 30 Disassembly and Assembly
• 40 Maintenance Standard
• 90 Others

01 General

This opening chapter establishes the machine baseline. You get overall dimensions for both the WA600-3 and the WA600-3D (TBG spec.), including overall length, height, width, wheelbase, tread, ground clearance, dumping clearance, dumping reach, and bucket dump angle. The specification tables break down operating weight, weight distribution front and rear, bucket capacity, rated load, travel speeds for all four forward and four reverse ranges, maximum rimpull, gradeability, and turning radius. A weight table gives you the heft of major components — engine assembly, radiator, torque converter, transmission, axles, tires, lift arm, bucket, counterweight, and more — so you can plan lifting and transport safely. You also get the lubricant and coolant chart with ambient temperature ranges and capacities, plus the tightening torque tables for standard bolts, split flange bolts, O-ring boss piping joints, O-ring boss plugs, Cummins engine fasteners, and hoses.

10 Structure and Function

This is where the manual really opens up the machine. The power train section walks you through the complete system — from the engine flywheel through the torque converter, transmission, transfer, drive shafts, center support, axles, differentials, and final drives. Each component gets its own treatment: the torque converter (TCA45-2B and TCA43-7B) with its path of power and oil flow; the transmission with its six hydraulically actuated clutches and four forward/four reverse speed ranges; the transmission control valve with its main relief valve, pilot reducing valve, priority valve, modulating valve, quick return valve, reducing valve, accumulator valve, torque converter relief valve, emergency manual spool, and lubrication bypass valve. You will also find the steering system — steering column, orbit-roll valve, steering valve, two-way restrictor valve, stop valve, and emergency steering diverter valve. The brake system is covered in detail: brake valve, charge valve, accumulators, slack adjuster, wheel brakes, parking brake, spring cylinder, and parking brake solenoid valve. The work equipment hydraulics section covers the main control valve, PPC valve, cut-off valve, hydraulic tank, and the auto grease system. Electrical coverage includes the machine monitor system, main monitor, maintenance monitor, engine starting and stop circuits, pre-heating circuit, electric transmission control, kick-down and hold switches, electric parking brake control, and the Electronically Controlled Suspension System (E.C.S.S.).

20 Testing and Adjusting

This chapter is the diagnostic heart of the manual. It opens with standard value tables for the engine and chassis, giving you the exact numbers you need to judge whether a component is within spec or worn out. You get procedures for measuring engine speed (low idle, high idle, torque converter stall, hydraulic stall, and full stall), exhaust gas color, valve clearance, injector lift, compression pressure, blow-by pressure, engine oil pressure, fuel injection timing, fan belt tension, alternator belt tension, air conditioner compressor belt tension, fuel pump output port pressure, exhaust temperature, and air supply (boost) pressure. The power train section covers testing and adjusting torque converter and transmission oil pressure, flushing the hydraulic circuit, and moving the machine when the transmission valve fails. Steering oil pressure and stop valve testing are covered. Brake testing includes brake oil pressure, brake disc wear, brake performance, parking brake, and accumulator charge cut-in and cut-out pressure. You also get PPC oil pressure testing, work equipment hydraulic pressure measurement, lever linkage adjustment, bucket positioner and boom kick-out adjustment, proximity switch actuation, main monitor speedometer module adjustment, air bleeding, and residual pressure release. The troubleshooting section is extensive — engine system (S mode), engine controller system (EA mode), electrical (E mode), hydraulic and mechanical (H mode), transmission control (T mode), maintenance monitor (K mode), and ECSS (D mode).

30 Disassembly and Assembly

This is the hands-on chapter. It covers removal, installation, disassembly, and assembly of major components with step-by-step procedures. You will find the engine and torque converter assembly removal and installation, torque converter disassembly and assembly, transmission removal and installation plus full disassembly and assembly, transmission valve removal and assembly, transfer disassembly and assembly, center support, drive shaft, front and rear axle removal and installation, front and rear differential, differential gear disassembly and assembly, limited slip differential, final drive, orbit-roll, steering cylinder, steering valve, cut-off valve, brake valve, slack adjuster, brake, hydraulic pump, hydraulic tank, hydraulic filter, PPC valve, work equipment valve, main control valve, dump cylinder, lift cylinder, center hinge pin, work equipment, bulkhead, floor frame, counterweight, fuel tank, cab, stop valve, accumulator, accumulator charge valve, parking brake solenoid valve, diverter valve, emergency steering pump, parking brake, parking brake calipers, parking brake pad, rear tires, air conditioner compressor, air conditioner condenser, receiver tank, air conditioner unit, and monitor. Each procedure includes torque values, special tool references, and precautions where needed.

40 Maintenance Standard

This chapter gives you the judgment standards for inspecting disassembled parts. It covers engine mount, transmission mount, torque converter, torque converter regulator valve, transmission, transfer, transmission control valve, drive shaft, center support, differential, limited slip differential, final drive, axle mount, center hinge pin, steering column, steering valve, emergency steering pump, diverter valve, steering cylinder mount, brake valve, slack adjuster, brake, parking brake, hydraulic pump, PPC valve, cut-off valve, main control valve, hydraulic cylinder, work equipment linkage, bucket, bucket positioner and boom kick-out, and ROPS canopy. Each entry gives you the standard size, standard clearance, clearance limit, and remedy — so you know exactly when a part is still serviceable and when it needs replacement.

90 Others

This section contains hydraulic circuit diagrams and electric circuit diagrams, plus specifications for attachments and options. It is the reference material you reach for when you need to trace a circuit or verify a connection.

Comprehensive Coverage for the WA600-3 and WA600-3D

This Komatsu WA600-3 and WA600-3D shop manual is the complete reference for maintaining, diagnosing, and repairing these large wheel loaders. The manual covers both the standard WA600-3 and the WA600-3D (TBG spec.), with serial numbers starting from 50001 and up. It is written for machines fitted with either the SA6D170E-2 or the SAA6D170E-3 engine, and it references the 6D170-2 or 6D170-3 Series Engine Shop Manual for engine-specific details.

Whether you are a seasoned technician in a repair shop, a fleet maintenance manager keeping a loader running on a job site, or an owner-operator who wants to understand the machine systems, this manual gives you the information you need. The structure and function chapter alone is worth the price — it explains how the torque converter, transmission, hydraulics, and electrical systems actually work, which makes troubleshooting far faster. The testing and adjusting chapter gives you the exact procedures and standard values to diagnose problems without guesswork. The disassembly and assembly chapter walks you through major component removal and rebuild with torque values and special tool references. And the maintenance standard chapter tells you when a part is worn out and needs replacing.

Why This Shop Manual Is Essential

These machines are expensive to repair and expensive to have down. A wheel loader that is out of service costs money every hour. Having the correct procedures, the right torque values, and the accurate specifications at your fingertips means you can do the job right the first time. You can diagnose a problem confidently instead of replacing parts hoping one of them fixes it. You can rebuild a transmission or a torque converter to factory tolerances. You can adjust a valve or a linkage to the exact specification. You can trace an electrical fault through the circuit diagram. You can check a brake disc for wear against the service limit and know whether it is still good.

This manual covers the full scope of the machine — engine mounting, power train, steering, brakes, work equipment hydraulics, electrical systems, and even the air conditioning. It is the same information a Komatsu dealer technician would use. The document number SEBM013216 identifies it as the genuine shop manual for this model.

IMAGES PREVIEW

The manual is delivered as an instant PDF download. There is no shipping, no waiting, and no physical book to keep track of. You can open it on any device — laptop, tablet, or smartphone — and you can print the pages you need for the job. Whether you are working in a shop with a computer nearby or out in the field with a tablet, the information is right there. The PDF format lets you zoom in on detailed illustrations and diagrams, and you can print specific pages to take to the machine. This is the reference you will reach for every time you service or repair a WA600-3 or WA600-3D.