Description

Komatsu PW170ES-6K 2001 Workshop Manual

If you’re holding a hydraulic excavator that’s losing brake pressure or a transmission that won’t engage, the last thing you need is a generic manual full of approximate specs. I’ve been turning wrenches in San Antonio for 28 years, and I’ve seen too many guys ruin a good Komatsu because they followed aftermarket documentation. The Komatsu PW170ES-6K 2001 Workshop Manual is what you need on your bench – not a reprint, not a scan of a scan. This is the original 667-page PDF from Komatsu, with every torque value, every hydraulic circuit diagram, and every service code straight from the factory.

Standard Tightening Torque: Don’t Guess

Open the manual to the GENERAL section and you’ll find the STANDARD TIGHTENING TORQUE table. I don’t care how many engines you’ve built – you need the factory numbers for every bolt on this machine. Page numbers inside that section list torque values for metric fasteners used throughout the PW170ES-6K. One wrong value on a cylinder head or a brake valve flange and you’ll be tearing it down again inside a hundred hours. This manual gives you the spec, not a recommendation.

Testing and Adjusting: The Real Work

Section 20 is where the time gets saved. It covers TESTING AND ADJUSTING the engine speed sensor, the governor motor lever stroke, and the hydraulic pressure in the work equipment, swing, and travel circuits. Need to bleed air from the accumulators? Page numbers in that section walk you through releasing remaining pressure in the hydraulic circuit before you crack a line. The manual also includes the standard value tables for electrical parts – those resistance checks that aftermarket books leave out. If you’re troubleshooting an E-2 code (fuel control dial input abnormal), this manual shows you the exact connector pin numbers and the controller LED behavior. That’s the difference between a quick fix and a parts cannon.

Structure and Function: Know What You’re Looking At

Before you start disassembling anything, spend fifteen minutes in the STRUCTURE AND FUNCTION section. It breaks down every subsystem:

• Engine related parts – cooling, aftercooler, radiator
• Power train – swing circle, swing machinery, undercarriage
• Transmission – with separate coverage of the axle and suspension lock cylinder
• Braking train – brake pedal, brake valve, accumulator for the brake system
• Steering train including the steering column
• Hydraulic circuit diagram – the full CLSS, control valve, EPC solenoid valve diagrams
• Work equipment – boom holding valve, hydraulic cylinders, travel motors (front and rear)

If you’ve ever worked on a Manual Transmission in a heavy machine, you know the difference between seeing the parts laid out in a schematic vs. trying to trace hoses by memory. This manual gives you both.

667 Pages of Factory Data

At 667 pages, this Workshop Manual doesn’t skip anything. The MAINTENANCE STANDARD (section 40) gives you wear limits for cylinders, bearings, and swing circle clearance. The DISASSEMBLY AND ASSEMBLY section (30) has step-by-step procedures for every major component. And the TROUBLESHOOTING chapter inside TESTING AND ADJUSTING runs dozens of pages – service code tables, connector connection tables, and judgement tables for governor and pump controller system faults. You won’t find this depth in a $30 aftermarket manual that claims to cover ‘all years’.

Why Aftermarket Manuals Frustrate Me

I get calls from guys who tried to rebuild a brake valve using a third-party document. The wiring diagram had swapped pin numbers, and the torque spec for the valve body bolts was off by 15 ft-lbs. That’s not just wasted time – that’s a safety hazard. This manual is the actual OEM document used by Komatsu dealers. It matches the serial numbers K32001 and up, K34001 and up. The electric wire codes, the coating materials, the hoisting instructions – all factory. If you want to fix a machine right, you start with the right source. And if you’ve spent any time in a transmission overhaul, you’ll appreciate the Manual Transmission coverage in this book – it’s specific to the PW170ES-6K, not generic.

FAQ

Does this manual cover the electrical system for the PW170ES-6K?

Yes. It includes multiple ELECTRICAL WIRING DIAGRAM pages, the ELECTRONIC CONTROL SYSTEM, and the MACHINE MONITOR SYSTEM. Specific troubleshooting for E-mode codes (governor, pump controller) is covered in the troubleshooting charts.

What torque values are listed?

The STANDARD TIGHTENING TORQUE table in the GENERAL section covers all standard metric fasteners. Additionally, each assembly procedure in DISASSEMBLY AND ASSEMBLY gives torque values for critical bolts – cylinder head, brake valve, swivel joint, and more.

Will this work for a PW170ES-6K with serial number K35000?

Yes. The manual covers serial numbers K32001 and up and K34001 and up. K35000 falls within that range. Confirm your machine’s serial before ordering if you’re outside those ranges.

How do I access the file after purchase?

After payment you get a direct PDF format link. No reprints – the file is the same 667-page OEM manual printed in 2001. Use Adobe Reader or any PDF viewer.

Related Manuals

• KOMATSU PW170ES-6K Operation & Maintenance Manual
• KOMATSU PW170ES-6K Shop Manual
• Komatsu PW170ES-6K Hydraulic Excavator Shop Manual

If you want to stop burning time on bad information, get the real thing. Access the Factory Manual – the Komatsu PW170ES-6K 2001 Workshop Manual – and start working with specs you can trust.