Description

Komatsu WD600-3 2008 Workshop Manual

I’ve seen guys torque head bolts by feel and wonder why the engine leaks oil a week later. That’s not how work gets done in a shop that respects the equipment. If you’re cracking open a Komatsu WD600-3 2008 Workshop Manual, you need the factory numbers, not guesses. This 861‑page manual from Komatsu – part number SEBM022903 – gives you the exact torque values, clearances, and procedures. No aftermarket approximation. You get the same specs the dealer tech uses, printed in Japan in 2008.

Cooling System: Full Factory Breakdown

The Cooling section covers the radiator, fan, belt tension adjustments, and thermostat testing. Standard value tables list coolant capacity and temperature ranges. If you’re replacing the auto‑tensioner or the fan belt, the manual shows the factory procedure for adjusting belt tension. Don’t rely on generic manuals – Komatsu designed this system, and they know where the weak points are. The diagram on page 10‑50 details the coolant flow through the torque converter oil cooler.

Torque Specs and Fluid Capacities

Torque converter bolts, transmission pan, axle housings – every fastener has a torque spec listed in the Standard Value Table for Chassis. I’ve had to fix jobs where someone used the wrong torque on the transmission control valve and caused internal leaks. This manual lists the exact inch‑pounds and foot‑pounds. Fluid capacities for the hydraulic tank, transmission, axles, and cooling system are all in the Specifications section. Each torque spec is verified against Komatsu’s own test data.

Transmission and Torque Converter Diagnostics

The Transmission section covers the torque converter regulator valve, lock‑up valve, lock‑up solenoid valve, and the emergency manual spool. If your WD600‑3 won’t shift or slips, you need the testing procedures from Section 20. The manual shows how to measure oil pressure at the torque converter and transmission. There’s a troubleshooting matrix for the electric transmission control system. Connector pin numbers and location diagrams are included so you can trace the wiring without guessing. I’ve used these tables to diagnose a no‑shift condition in under an hour – the factory sequence of events pinpoints the failed component.

Valve Clearance Adjustment – Factory Procedure

Adjusting valve clearance on the SAA6D170E‑3 engine isn’t something you wing. The manual gives you the standard valve clearance cold, the order to adjust, and where to set the feeler gauge. I’ve seen guys close the valve cover without checking and end up with a ticking noise that costs hours to fix. The Testing and Adjusting section includes the step‑by‑step for valve clearance, injector lift, and compression pressure. Each spec is in the Standard Value Table for Engine. Use the factory spec – not a generic diesel engine guide.

7 Systems Covered in 861 Pages

This manual doesn’t stop at the engine. It covers the Cooling system, Power Train, Steering, Brakes, Hydraulics, Air Conditioner, and the Machine Monitor System. Each system has a function description, testing procedures, and troubleshooting charts. If you’re working on the steering unit (orbit‑roll valve) or the PPC valve, the diagrams are from Komatsu’s own engineering drawings. You’re not getting a redrawn aftermarket version. That’s 861 pages of usable data.

Who Needs This Manual?

Anyone who owns a WD600‑3 wheel loader – fleet mechanic, independent shop, or owner‑operator. If you’re doing a transmission rebuild, diagnosing an electrical fault in the engine stop circuit, or adjusting the parking brake, you need the factory wiring diagrams and the sequence of events for troubleshooting. The manual assumes you have basic mechanical knowledge. It doesn’t hold your hand. But it gives you the specs you need to get it right the first time. Related manuals for other Komatsu models include Komatsu WA65-5 WA70-5 WA80-5 2005 Workshop Manual, Komatsu WH609-1E0 WH613-1E0 WH713-1E0 WH714H-1E0 WH716-1E0 Workshop Manual, and Komatsu PW95R-2 Workshop Manual – 520 Pages of Factory Specs. For general information on manual transmissions, see Manual Transmission and Manual Transmission.

Source Authenticity: OEM vs. Aftermarket

This is an original OEM Komatsu publication, not a third‑party reprint. The part number SEBM022903, printed in Japan, 2008. I’ve used aftermarket manuals that had wrong torque specs – they’re dangerous. With this, you’re getting the same document that Komatsu dealers use. The manual includes a list of revised pages, so you know which updates are incorporated. No redrawing, no errors introduced by translation. If you want to work on a Komatsu, use the Komatsu book.

Frequently Asked Questions

Does this manual cover the SAA6D170E‑3 engine?

Yes. Covers engine adjustments, valve clearance, and compression tests.

How many pages and what year?

861 pages, published in 2008. This is the full shop manual, not a condensed version. It includes all sections from general specifications to disassembly and assembly, maintenance standards, and troubleshooting. The page count includes wiring diagrams, hydraulic schematics, and torque tables. You won’t find a more complete document for the WD600‑3. I’ve seen aftermarket versions that skip the wiring diagrams or compress the troubleshooting charts into vague steps. This manual gives you the full factory content, including the list of revised pages so you know which updates are incorporated.

Are torque specs in foot‑pounds or inch‑pounds?

Both. The Standard Value Tables list torque in foot‑pounds for large fasteners and inch‑pounds for smaller bolts. Always use the specified unit – the manual clearly labels each value. Don’t mix units.

Can I use this for preventive maintenance?

Absolutely. The manual includes a list of lubricants and water, maintenance intervals, and procedures for bleeding air, releasing hydraulic pressure, and adjusting belts. It’s the same schedule Komatsu recommends.

If you’re tired of hunting for specs online and ending up with contradictory numbers, stop. Get the 2008 Komatsu factory manual. It’s the only document I trust when I’m working on a WD600‑3. Access the Factory Manual and put it on your shop tablet or print the pages you need. Your torque wrench will thank you.