Description

Komatsu WD600-1 2001 Workshop Manual

If you are wrenching on a WD600-1 and the machine won’t move, or the engine’s blowing smoke and you don’t have factory specs, you are burning time and risking parts. I have seen too many guys guess on valve clearances and end up with a bent pushrod. This is a 742-page shop reference that stays open on the workbench — not a coffee table book. It covers serial numbers 10001 and up, printed in 2001 by Komatsu themselves.

Engine Testing and Adjustment: Valve Clearance and Compression

Section 12 of the manual walks you through each test. Want to set valve lash? The adjusting valve clearance procedure is right there with OEM clearances — not some aftermarket approximation. Need compression numbers? Table of judgment standard values on page 12-1 gives you pass/fail thresholds. No chasing a cold spec out of a forum post.

Fuel injection timing is covered too. The testing and adjusting fuel injection timing procedure shows you the exact marks and pump timing. Skip that and you’ll be chasing white smoke or a no-start for half a day.

Does This Manual Cover the Entire Powertrain?

Section 20 is all power train — torque converter, Manual Transmission control valve, differentials, final drives, drive shafts. Manual Transmission components like the transmission control valve get their own disassembly and assembly (section 23). Hydraulic circuit schematics are included so you can trace the oil flow before pulling a valve body. The troubleshooting table for transmission issues lists five symptoms — machine does not move, lacks power, excessive time lag, high torque converter temperature. Each symptom has a step-by-step diagnostic path.

Torque converter oil temperature too high? The troubleshooting tree points you to the right test sequence, not a guess.

Fuel Injection Timing: Why You Need Exact Specs

Section 12 includes testing and adjusting fuel injection timing. The factory procedure uses timing marks and a dial indicator — not eyeballing it. The manual also covers measuring blow-by pressure and exhaust gas color to diagnose combustion efficiency. Fuel system components like the fuel injection pump, nozzle holder, and fuel tank each have removal and installation steps in section 13. Don’t risk a high-pressure fuel leak because you used an aftermarket diagram with wrong orientation.

3 Reasons to Use OEM Documentation Over Aftermarket

Aftermarket manuals cut corners. They merge models, omit cold-area variants, and skip the emergency manual spool procedure. This OEM manual includes: (1) exact torque converter relief valve settings for cold-area machines, (2) transmission control valve details with upper and lower valve differences, (3) emergency manual spool operation for when the solenoid fails. Komatsu WA65-5 WA70-5 WA80-5 2005 Workshop Manual and Komatsu WH609-1E0 WH613-1E0 WH713-1E0 WH714H-1E0 WH716-1E0 Workshop Manual are separate — no cross-compatibility assumptions.

Check the serial number range printed on page 1. If your machine falls outside it, look for Komatsu PW95R-2 Workshop Manual – 520 Pages of Factory Specs instead.

Komatsu WD600-1 2001 Workshop Manual Content Overview

The Komatsu WD600-1 2001 Workshop Manual is broken into groups: Engine (10), Power Train (20), Steering (40), Brake and Air (50), Work Equipment (60), Electric/Electronic (80). Each group has structure/function, testing/adjusting, disassembly/assembly, and maintenance standard sub-sections. Page counts are heavy — over 100 pages for the power train alone. The engine section alone covers low idling select system, compression measurement, and every removal procedure from starting motor to cylinder head.

Valve clearance adjustments require a feeler gauge and the manual’s specified cold clearance. No aftermarket chart needed.

FAQ

Does this manual cover the WD600-1 with serial number 10001 and up?

Yes, the cover page explicitly states serial number 10001 and up. Check your machine plate.

How do I adjust valve clearance using this manual?

Go to section 12, “ADJUSTING VALVE CLEARANCE” within the Engine Testing and Adjusting chapter. It shows the firing order, the cylinder numbering, and the exact cold clearance values for intake and exhaust valves. You’ll need a feeler gauge and a wrench — the manual lists the required tools. After adjustment, run the engine and re-check. No other sources needed.

Is this an original OEM factory manual?

Yes. The PDF is a direct scan of the original 2001 Komatsu shop manual. No aftermarket reprint or third-party compilation. The copyright page within the manual confirms “© 2001 KOMATSU”.

Can I use this for other Komatsu models?

No. The handbook is model-specific. Other models have separate manuals.

You need factory data on the workbench, not a generic guide missing half the steps. Access the Factory Manual and keep it open while you work.