Description

Komatsu PC210-8, PC210LC-8, PC210NLC-8, PC230NHD-8, PC240LC-8 Workshop Manual

If you’ve ever tried to swap a hydraulic pump on a PC210-8 using a third-party manual that had the wrong torque values, you know the feeling. You waste a Saturday, strip a bolt, and end up calling the dealer. That’s why this factory Komatsu PC210-8, PC210LC-8, PC210NLC-8, PC230NHD-8, PC240LC-8 Workshop Manual exists. 1062 pages of Komatsu’s own documentation. Not a reprint. Not a scan of a scan. This is the OEM file for the -8 series, covering everything from the engine and cooling system to the KOMTRAX terminal. I’ve been turning wrenches for 28 years, and I trust factory spec over aftermarket guesswork any day.

Page 1 lists the serial numbers.

Engine and Cooling System: What the Manual Covers

The engine section in this Workshop Manual goes deep. You get engine related parts, radiator, oil cooler, aftercooler, and fuel cooler. The foreword includes a standard tightening torque table — that’s your go-to for bolts without a specific callout. Page 3 shows the organization list for the whole shop manual. Each section has a Form Number, so you can file updates properly. Keep it in order, or you’ll waste time flipping through 1062 pages.

Torque Specs: Standard Tightening Torque Table

The foreword’s standard tightening torque table covers general fasteners. For specific values — like cylinder head bolts or hydraulic fitting torque — you’ll find them in section 20 Standard value table (Standard service value table) and inside the testing and adjusting procedures. Don’t trust aftermarket charts. Komatsu’s own engineers set these numbers. Use ’em.

Hydraulic System Coverage in Three Parts

The manual splits hydraulics into three separate sections: Part 1 covers hydraulic equipment layout, tank, filter, and the pump. Part 2 goes into the control valve, CLSS (Closed Center Load Sensing System), and hydraulic drift prevention valve. Part 3 covers the swing motor, center swivel joint, travel motor, PPC valve, solenoid valve, accumulator, and cylinders. That’s the whole system, from pilot pressure to final drive.

Who Needs This Manual: DIY Owners and Pros

If you own a PC210LC-8 or PC240LC-8 and do your own maintenance, this manual pays for itself on the first repair. The testing and adjusting section (30 Testing and adjusting, Part 1 through 3) has procedures for measuring engine speed, boost pressure, fuel pressure, valve clearance, blow-by, and oil pressure in work equipment, swing, and travel circuits. It also includes track shoe tension adjustment and air conditioner belt tension. Pros use this to verify specs before quoting a job — no guesswork, no comebacks.

OEM vs Aftermarket – Why This Print Matters

Aftermarket manuals often grab data from older models or skip the hydraulic schematics. This is the factory document for the -8 series, with specific serial numbers listed on page 1: PC210- K50001 and up, PC210LC- K50001, PC210NLC-K50001, PC230NHD-K50001, PC240LC-K50001. If your machine falls in that range, this manual matches. The torque values, the wiring diagrams, the KOMTRAX terminal system — all Komatsu originals. No reprints, no copy.

Related Manuals

• Komatsu PC210-8 Series Operation & Maintenance Manual”>Komatsu PC210-8 Series Operation & Maintenance Manual
• Komatsu PC210-8/PC240LC-8 Workshop Manual – 1062 Pages of OEM Specs”>Komatsu PC210-8/PC240LC-8 Workshop Manual – 1062 Pages of OEM Specs
• Komatsu WA65-5 WA70-5 WA80-5 2005 Workshop Manual”>Komatsu WA65-5 WA70-5 WA80-5 2005 Workshop Manual

Want to understand how a manual transmission works? Check Manual Transmission for basics. The testing procedures in this manual also reference drivetrain concepts similar to Manual Transmission.

Does this manual cover the PC240NLC-8?

Yes, it covers PC240NLC-8 from serial number K50001.

Can I print this manual?

The PDF is fully printable. 1062 pages means you’ll probably want to print only the section you need — like the hydraulic pump rebuild or the electrical diagrams. The manual is organized with dividers for each section. Keep a copy on a tablet in the shop, or print the pages you use most. Just watch out for grease on the screen.

What torque values are included?

Standard tightening torque table is in the foreword. Specific values for engine, hydraulic, and chassis parts are in the Standard value table section (20) and in the testing and adjusting procedures. Every bolt that matters has a torque spec — head bolts, connecting rods, main bearings, hydraulic line fittings, track adjuster bolts. Komatsu gives you the numbers so you don’t have to guess.

Is this manual compatible with the PC210-7?

No. This is for the -8 series only. The -7 has different hydraulic and electrical systems. Don’t use it on a -7.

You’ve seen enough aftermarket garbage. Get the real thing. Access the Factory Manual for your Komatsu PC210-8, PC210LC-8, PC210NLC-8, PC230NHD-8, or PC240LC-8. 1062 pages of OEM specs direct from Komatsu. No reprint. No guesswork. Click the link below.