Komatsu PW20-1 PW30-1 Excavator Shop Manual

Technical reference covering PW20-1 and PW30-1 models with detailed diagrams, specifications, and diagnostic procedures. Ref: SEBM021F0102

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Document Details

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Document Number / Seller:
30627 / Emily Murphy
File Size:
19.47 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Excavator
Last updated / verified
Oct 14, 2025

Models Covered & Key Technical Specifications

Functional Technical Installation Manual: Excavator Official Komatsu PW20-1, PW30-1 Shop Manual - Comprehensive Service & Repair Guide Procedure-Library Komatsu PW20-1 PW30-1 (SEBM021F0102) -- Covers PW20-1 / PW30-1 Series | Archive.

  • Established Working Temperature: 45-55°C establishes the optimal hydraulic fluid operating temperature Range.
  • Reference Print Rate: For optimal operation, 2500 rpm dictates the engine speed for pump delivery Specifications.
  • Essential Unit Dimensions: The machine dimensions are not explicitly stated but diagrams provide visual context Metrics.
  • Baseline Bolt Torques: The documentation specifies torque values ranging from 5 kgm up to 26.411 kgm for critical assembly points.
  • Integral Displacement Data: The front pump has a delivery rate of 26.3 cc/rev at 2600 rpm.
  • Specific Thermal Envelope: The control valves are designed to operate within a temperature range that ensures consistent performance Standards.

Professional Workshop Service Manual & Technical Specifications

Functional Technical Installation Manual: Excavator Official Komatsu PW20-1, PW30-1 Shop Manual - Comprehensive Service & Repair Guide Procedure-Library

Engineering-Metrics: Komatsu PW20-1, PW30-1 (SEBM021F0102) // Technical-Benchmarks: Excavator / Hydraulic Logic // Engineering-Metrics: Technical Specifications & Procedures.

Komatsu PW20-1, PW30-1 Shop Manual: Technical Specs & Diagrams

Component Operational-Logic Validation-Data
Engine Specific pressure readings and adjustments Confirmed tolerances and testing procedures
Hydraulic System System schematics and component analysis Flow rates, pressure checks, and operational diagnostics
Power Train Component assembly and disassembly instructions Torque specifications and critical measurements
Steering System Operational diagrams and control linkage Performance metrics and adjustment parameters
Work Equipment Attachment assembly and maintenance Wear limits and operational force assessments

Maintenance information covers:

  • Engine
  • Power Train
  • Hydraulic System
  • Steering System
  • Work Equipment

This manual provides comprehensive documentation for the Komatsu PW20-1 and PW30-1 excavators. It details the structure and function of various systems, including the engine, power train, hydraulic system, steering, and work equipment. Procedures for disassembly, assembly, testing, and adjusting are clearly outlined with accompanying diagrams and part numbers. The manual also includes troubleshooting charts and maintenance standards to assist in diagnosing and resolving issues. Torque specifications for critical components are documented to ensure proper assembly and performance.

Introduction to Systems

This section provides an overview of the machine's primary systems and their functions. It details the configuration of the engine, power train, and hydraulic circuits, explaining how each component contributes to overall operation.

Component Procedures

The manual documents disassembly and assembly procedures for key components. Methodical instructions guide the technician through the removal and installation of parts, ensuring correct reassembly and function.

Maintenance Standards

Specifications for maintenance and adjustments are presented in a clear, organized format. This includes operational values and permissible limits for various checks, aiding in routine maintenance and performance verification.

FAQ

What is the **required** fluid capacity requirements for the hydraulic system? keyboard_arrow_down

56 liters is the specified capacity for the hydraulic tank.

Calculate the **specified** component identification for the front pump. keyboard_arrow_down

The front pump has a delivery rate of 26.3 cc/rev at 2600 rpm and 29.4 cc/rev at 2600 rpm for the rear pump.

What values **essential** for adjustment procedures in the engine? keyboard_arrow_down

Engine speed of 1200 rpm and an oil temperature range of 100-110°C are essential for measuring engine oil pressure.

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Reviews (3)

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New
This shop manual has helped me maintain my PW20-1 effectively. The download process was smooth, and customer support was very responsive when I had questions.
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Rated 4 out of 5 stars
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New
The manual is incredibly detailed and user-friendly. It covers everything from engine diagnostics to safety protocols. Highly recommend!