Komatsu PC35R-8 PC45R-8 Hydraulic Excavator Service Manual

This comprehensive service manual provides essential repair and maintenance information for the Komatsu PC35R-8 and PC45R-8 hydraulic excavators. It covers detailed procedures, diagnostics, and specifications.

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Document Details

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Document Number / Seller:
27585 / Cynthia Collins
File Size:
6.46 MB
File Type:
PDF
Language:
English
Pages:
286
Printable:
Yes
Category:
Mini Excavator
Last updated / verified
May 6, 2025

Models Covered & Key Technical Specifications

Detailed Workshop Diagnostic Manual: Komatsu PC35R-8 & PC45R-8 Manual - Comprehensive Maintenance, Diagnostics & Repair Procedures Manual-Nexus Komatsu PC35R-8 PC45R-8 (WEBM003900) – February 2002 Technical Dossier | Volume

  • System Power Data: 200 bar establishes the maximum operating pressure for the hydraulic system.
  • Core Speed Performance: For optimal performance, 2500 rpm defines the engine's rated operating speed Range.
  • Specific Weight: The PC35R-8 excavator has a weight of 3370 kg, defining its operational footprint Threshold.
  • Critical Dimensions: The excavator requires a minimum ground clearance of 220 mm for effective operation Configuration.
  • Universal Capacity: The hydraulic system requires 33 ", signifying the total hydraulic fluid capacity Benchmark.
  • Technical Calibration: 2550 kg establishes the maximum permissible load for the PC45R-8 during operation Parameters.

Professional Workshop Service Manual & Technical Specifications

Detailed Workshop Diagnostic Manual: Komatsu PC35R-8 & PC45R-8 Manual - Comprehensive Maintenance, Diagnostics & Repair Procedures Manual-Nexus

Component-Focus: Komatsu PC35R-8 PC45R-8 // Design-Core: Hydraulic Excavator / System Logic // Diagnostic-Area: Repair Procedures & Specifications. Rigorously mandating proper maintenance and repair, this manual contains vital technical information for the Komatsu PC35R-8 and PC45R-8 hydraulic excavators. It documents diagnostic procedures, system specifications, and detailed diagrams to assist technicians.

Technical Specification Overview

Integrated-Framework System-Path Logic
Hydraulic System Pressure Operating pressure specifications are included for hydraulic systems. 200 bar signifies the maximum operating pressure.
Engine Speed Reference data is included for engine speed. 2500 rpm is the rated operational speed.
Excavator Weight This manual covers the operational weight of the excavators. PC35R-8: 3370 kg // PC45R-8: 3550 kg
Ground Clearance Diagnostic procedures are covered for ground clearance. 220 mm is the standard ground clearance.
Hydraulic Oil Capacity Wiring diagrams are provided for hydraulic oil capacity. 33 L is the total capacity for both models.
Track Shoe Width Detailed specifications are included for track components. 400 mm (15.76 in.) is the width of the track shoe.

Service procedures are grouped by system and component for easy navigation. The manual includes sections on structure and function, testing and adjusting, removal and installation, and maintenance standards. Key diagrams illustrate critical hydraulic and electrical systems, facilitating accurate troubleshooting and repair.

This manual documents torque specifications for critical components to ensure proper vibration dampening.

TABLE OF CONTENTS SUMMARY

  • Removal and Installation of Hydraulic Tank
  • Control and Adjustment of the Tension of the Fan Belt
  • Removal of the Alternator
  • Bleeding Air from the Hydraulic Circuits
  • Adjustment of Valve Clearances
  • Checking the Engine Speed

FAQ

Specify the **applicable** lubrication requirements? keyboard_arrow_down

140 Nm (103.3 ft.-lb.) for coupling torque on the travel motor and 40 Nm (29.5 ft.-lb.) for the track frame mounting bolts are specified for lubrication and assembly.

What is the **exact** testing parameters? keyboard_arrow_down

15 seconds is the specified duration to allow for full minute readings when checking for leakages. The permitted leak amount is 0.05 cc/min (0.003 in.³/min).

Calculate the **specific** diagnostic procedures? keyboard_arrow_down

Pages 243+ detailing hydraulic oil temperature during testing should be referenced; specifically, operating temperature ranges of 45-55°C (113-131°F) are critical for accurate diagnostic procedures.

What values **designated** fluid capacity requirements? keyboard_arrow_down

33 ", or 8.7 US gallons, represents the designated fluid capacity requirement for the hydraulic tank.

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Rated 5 out of 5 stars
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I was impressed by how easy it was to navigate the manual. Download process was smooth too!
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The illustrations are top-notch. I received my download link promptly after purchase. Great service!
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The troubleshooting guides are especially helpful. Quick support from the team when I had questions!
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This manual made my repair work so much easier. Clear instructions and great diagrams!