Description

Komatsu PW170ES-6K 2001 Workshop Manual – 707 Pages of Factory Specs

If you are turning wrenches on a Komatsu PW170ES-6K hydraulic excavator from 2001, you need the real factory book. Not a reprint, not a third-party summary. I have seen aftermarket manuals miss torque values by 15 ft-lbs and scramble a customer’s swing circle in under 50 hours. This is the 2001 OEM Workshop Manual – 707 pages – exactly what Komatsu shipped to its dealers. It covers serial numbers K32001 and up, K34001 and up. You want to pull the counterweight? Check page 00-2 for the list of revised pages to make sure you are working off the latest version. That attention to detail keeps a machine running past 10,000 hours.

707 Pages of Factory Service Data

This manual does not waste space with theory. It is broken into five main sections: General (01), Structure and Function (10), Testing and Adjusting (20), Disassembly and Assembly (30), and Maintenance Standard (40). Under those, you get the real stuff: standard tightening torque tables, electric wire codes, hoisting instructions, coating material specs. Need to know the charge pressure for the accumulator on the brake system? That is in Testing and Adjusting. The wiring diagrams are not generic – they are specific to the PW170ES-6K, with separate diagrams for E mode, C mode, and F mode. You get connector pin connection tables, judgment tables for troubleshooting the governor and pump controller system, and service code tables. No fluff.

What Torque Values Are Listed?

The manual includes a dedicated STANDARD TIGHTENING TORQUE section. These are not “suggested” values from a generic chart. They are Komatsu’s factory specs for bolts on the engine, swing machinery, undercarriage, axles, and hydraulic components. If you are buttoning up the rear axle or the clutch control circuit, you use these numbers. The manual also lists coating materials – thread lock, sealants, anti-seize – for each joint. Forget that and you will be re-torquing after 200 hours. The copyright is 2001, printed in Belgium, and the revision marks are clearly indicated on the pages. You can see exactly which pages were added or replaced since the original print.

Engine Overhaul and Troubleshooting Covered

Section 20 (Testing and Adjusting) has 16 symptom-based troubleshooting procedures for the engine alone: S-1 starting performance poor, S-7 exhaust smoke black, S-11 oil in cooling water, S-16 vibration excessive. Each one is a step-by-step flowchart. You start at the top, test each component, and stop when you find the fault. No guesswork. The electrical section covers E-codes: E-308 fuel control dial input, E-317 motor drive disconnection, E-318 short circuit, E-306 feedback potentiometer. There is also a judgment table for governor and engine related parts. If the controller LED is off, start with E-1. If the engine does not stop, check the battery relay output system. This is the kind of detail that separates a repair from a replacement.

Who Needs This Factory Manual

If you work in a shop that sees these machines – San Antonio, Houston, anywhere with dirt and concrete work – you need this on the bench. It also fits the home garage enthusiast who bought a surplus PW170ES-6K and wants to restore it properly. The manual assumes you already own basic tools: torque wrench, multimeter, hydraulic pressure gauges. It does not teach you how to use a manual transmission (wrong machine), but it does teach you how to set the PPC pumpless system pressure and check the CLSS control valve. The CTA is not “imagine you are on a job site” – it is “here is the spec, here is the procedure, now go do it.”

Source Authenticity: OEM vs Aftermarket

I cannot stress this enough: aftermarket manuals change torque values. I have seen one that listed 180 ft-lbs for a swing motor bolt that should be 230 ft-lbs. The Komatsu factory book never lies – it comes from the same engineering department that designed the machine. This PDF is scanned from the original 2001 print, not a re-typed copy. Every page matches the list of revised pages on 00-3. You get the safety notice, foreword, hoisting instructions, and conversion table (they give both metric and imperial – but the imperial is an approximation; always check the factory chart). Do not trust a $19 PDF from an unknown site. Get the genuine item from AutoRepairManuals.

Related Manuals for the PW170ES-6K

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

Frequently Asked Questions

Does this manual cover the electrical system completely?

Yes. It has 2 full electrical circuit diagrams per mode (E, C, F), plus connector pin tables, judgment tables for governor/pump controller, and troubleshooting for 16 engine symptoms. It also covers the battery relay and motor drive abnormalities.

Is the manual in metric or imperial units?

Metric. The torque tables and measurements are in Nm and kilograms. A conversion table is included on page 00-2, but Komatsu uses metric. If you need imperial, you convert – standard torque spec books can help, but use the factory numbers.

Will this help me rebuild the rear axle?

Section 30 (Disassembly and Assembly) covers the rear axle, and section 40 (Maintenance Standard) gives the wear limits and clearances. The axle-specific pages are listed in the revised pages list. This is a workshop manual, not an operator manual – it assumes you know how to pull bearings.

Can I use this for a PW170ES-6K with serial number K30000?

This manual covers serial numbers K32001 and up, K34001 and up. For earlier machines, the hydraulic circuit or governor programming may differ. Komatsu issued separate manuals for each serial number range. Verify your machine’s serial before purchasing.

Do not waste time chasing bad data. If you need to keep a PW170ES-6K in the field, get the book that the factory produced. Access the Factory Manual from AutoRepairManuals and put it on your tablet or print it out. It is 707 pages of correct information. No shortcuts, no reprints, no guesswork.