Komatsu PW170ES-6K Wheeled Excavator Shop Manual – Full PDF Service, Repair & Troubleshooting Guide (UEBM000801)

Description

Komatsu PW170ES-6K Shop Manual – The Complete Workshop Reference

This is the full Komatsu PW170ES-6K Shop Manual, publication number UEBM000801, covering the wheeled excavator from serial numbers K32001 and up and K34001 and up. At 707 pages, this manual is the single most comprehensive technical document Komatsu produced for this machine – spanning engine, hydraulics, electrical systems, axles, transmission, swing machinery, control valves, and work equipment. Every procedure, specification, and diagnostic chart you need to service, repair, or overhaul the PW170ES-6K is here in one PDF.

File Details

• Manual Type: Shop Manual (Service, Repair & Troubleshooting)
• Brand: Komatsu
• Model: PW170ES-6K
• Serial Numbers: K32001 and up, K34001 and up
• Document Number: UEBM000801
• Language: English
• Page Count: 707
• File Format: PDF
• Chapters: 01 General, 10 Structure and Function, 20 Testing and Adjusting, 30 Disassembly and Assembly, 40 Maintenance Standard

Chapters Covered

• 01 General
• 10 Structure and Function
• 20 Testing and Adjusting
• 30 Disassembly and Assembly
• 40 Maintenance Standard

01 – General

Safety notices, general precautions for greasing and repairs, preparations before work, hoisting instructions with wire rope load tables, standard tightening torques for bolts, nuts, split flange bolts, and flared nuts, electric wire colour codes, and a comprehensive conversion table for millimetres to inches, kilograms to pounds, litres to US and UK gallons, kgm to ft.lb, kg/cm² to lb/in², and temperature conversions. The manual opens with critical safety information that applies to every operation in the book.

10 – Structure and Function

Detailed explanations of how each major component and system on the PW170ES-6K works. Covers the damper assembly, radiator and oil cooler specifications (CWX-4, SF-3), the full machine layout with front axle, center swivel joint, swing motor, control valve, travel motor, prop shaft, hydraulic pump, engine, swing machinery, swing circle, transmission, rear axle, gear pump, priority valve, power brake valve, and clutch. Includes the swing circle reduction ratio (94/12 = 7.833), swing machinery reduction ratio (22.667), swing holding brake operation in both deactivated and excited states, axle construction with front and rear axle diagrams, oscillating axle lock circuit, brake pedal and accumulator specifications, steering system with full hydraulic operation and steering turn quantities, outrigger and dozer circuit diagrams, hydraulic tank specifications (196L capacity, 120L oil), main pump construction and operation including TVC and LS valve function, CLSS (Closed center Load Sensing System) with pump swash plate control, pressure compensation control, unload valve, LS bypass plug, pressure compensation valve operation, boom and arm regeneration circuits, LS select valve, cut-off function, and complete system operation descriptions for all control valve positions.

20 – Testing and Adjusting

This is the diagnostic heart of the manual. Contains a full table of judgement standard values for engine and chassis, standard value tables for electrical parts, and procedures for checking and adjusting air conditioner compressor belt tension, engine speed sensor adjustment, governor motor lever stroke testing and adjustment, swing circle bearing clearance testing, hydraulic pressure testing and adjustment in work equipment, swing, and travel circuits, TVC valve output pressure testing and adjustment, LS valve output pressure and LS differential pressure testing and adjustment, PPC pressure testing and adjustment, EPC valve and solenoid valve output pressure testing, PPC valve output pressure measurement and PPC shuttle valve testing, work equipment and swing PPC valve adjustment, hydraulic drift location testing, oil leakage measurement, releasing remaining pressure in the hydraulic circuit, bleeding air procedures, accumulator servicing, and an extensive troubleshooting section covering communication abnormalities (N mode), governor and pump controller governor control system (E mode), engine system (S mode), governor and pump controller pump control system (C mode), input signal system (F mode), hydraulic and mechanical system (H mode), and machine monitor system (M mode). Includes service code tables, connector types, connection tables for connector pin numbers, display methods for the monitor panel, and detailed troubleshooting flowcharts for every code from E101 through E318 and beyond.

30 – Disassembly and Assembly

Step-by-step removal, installation, disassembly, and assembly procedures for every major component. Covers governor motor assembly, hydraulic oil cooler, radiator and hydraulic oil cooler assembly, engine and main pump assembly, damper assembly, fuel tank and hydraulic tank assembly, center swivel joint assembly, swing motor assembly, swing machinery assembly, swing motor disassembly and assembly, revolving frame assembly, swing circle assembly, main pump assembly, control valve assembly with full disassembly and assembly of LS select valve, LS shuttle valve, pressure compensation valve, and main relief valve, LS control EPC valve assembly, EPC solenoid valve assembly, PPC shuttle valve assembly, work equipment PPC valve assembly, travel PPC valve assembly, boom cylinder assembly, arm cylinder assembly, bucket cylinder assembly, hydraulic cylinder disassembly and assembly with torque specifications and machining dimensions, work equipment assembly, bucket assembly, arm assembly, bucket and arm assembly, boom assembly, operator’s cab assembly, counterweight assembly, governor and pump controller assembly, and monitor panel assembly. Also includes swing machinery disassembly and assembly with detailed step-by-step procedures, special tool lists, transmission disassembly and reassembly, front and rear travel motor disassembly and assembly, front axle and rear axle disassembly, setting operations and reassembly with pinion positioning, bearing pre-load, backlash adjustment, and differential servicing, plus bucket adapter welding instructions and outrigger and blade cylinder procedures.

40 – Maintenance Standard

Wear limits, clearances, tolerances, and replacement criteria for engine mounts, swing machinery gears and bearings, swing circle bearing axial clearance, control valve spool return springs, suction and safety valves, swing motor, work equipment and swing PPC valve centering springs, EPC solenoid valve, center swivel joint clearance, boom and arm safety valve springs, hydraulic cylinder bushings and rod clearances, work equipment pivot bushings, bucket dimensions, dozer blade and outrigger hydraulic cylinders, outrigger bush pins, transmission brake disk wear limits, front axle and rear axle lubrication and brake specifications, and arm rotation circle backlash. Every measurement is given in millimetres with standard, tolerance, and repair limit values so you can judge precisely when a component needs replacement.

Why This Manual Is Essential for PW170ES-6K Owners and Technicians

The PW170ES-6K is a sophisticated wheeled excavator with a closed-center load sensing hydraulic system, electronic governor and pump control, oscillating axle lock, and a complex transmission and travel motor arrangement. Without the correct procedures, you risk misadjusting the LS valve, damaging the TVC valve, setting the wrong relief pressure, or causing premature failure of the swing machinery or travel motors. This manual gives you the exact testing sequences, adjustment values, and disassembly order that Komatsu technicians use. Whether you are troubleshooting an E02 code, setting the main relief pressure to 31.85 MPa (325 kg/cm²), measuring swing circle bearing clearance, adjusting the governor motor linkage, or rebuilding a boom cylinder, the procedure is here with the torque values, special tools, and judgement criteria you need.

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Instant PDF Delivery – No Shipping, No Waiting

This Komatsu PW170ES-6K Shop Manual is delivered as a PDF file immediately after purchase. There is no shipping cost, no waiting for a physical book, and no risk of a damaged or lost package. The PDF works on any device – laptop, tablet, or smartphone – and can be printed for use in the workshop. Every page is exactly as Komatsu published it, so you can trust the specifications, procedures, and values. Whether you are a professional heavy equipment mechanic, a fleet owner, or an operator who maintains their own machine, this manual gives you the complete factory information in a convenient, searchable, and printable format.