Komatsu WB91R-2 / WB93R-2 Backhoe Loader Service Manual

Comprehensive repair and service manual for Komatsu WB91R-2 and WB93R-2 Backhoe Loaders. Includes diagrams, specifications, and procedures.

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Document Details

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Document Number / Seller:
31585 / Donna Lee
File Size:
14.93 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Backhoe Loader
Last updated / verified
Jul 15, 2025

Models Covered & Key Technical Specifications

Komatsu WB91R-2 & WB93R-2 Backhoe Loader Service Manual

Comprehensive Repair Guide Data-Compendium | Technical Documentation Volume

  • Engine Specifications: 450 W signifies the active printing consumption Threshold.
  • Technical Resolution Data: 1200 dpi establishes the maximum print output Architecture.
  • Specific Temperature Range: For optimal operation, 15-30C defines the environmental limit Framework.
  • Advanced Memory Capacity: The formatter board requires 64 MB for standard operation Logic.
  • Core Speed Performance: Maximum throughput reaches 25 ppm Parameters.
  • Essential Power Rating: 450 W -- signifies the active printing consumption Threshold.

Professional Workshop Service Manual & Technical Specifications

Consolidated Quality Safety Manual: Komatsu WB91R-2, WB93R-2 Backhoe Loader - Comprehensive Repair Guide Data-Compendium

Asset-ID: Komatsu WB91R-2, WB93R-2 // Technical-Domain: Backhoe Loader / Hydraulic System Logic // Asset-ID: Service Manual

Table of Contents Summary:

  • Testing and Adjusting Fuel Injection Timing
  • Checking and Tightening the Compressor Fan - Belt
  • Adjusting the Sensor for Return to Dig Device
  • Testing and Adjusting of Load Sensing Signal (LS Valve)
  • Troubleshooting

Introduction

This shop manual has been prepared as an aid to improve the quality of repairs by giving the operator an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity. This shop manual mainly contains the necessary technical information for operations performed in a service workshop.

Structure and Function

This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.

Testing and Adjusting

This sections explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating «Problems» to «Causes» are also included in this section.

Disassembly and Assembly

This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.

Maintenance Standard

This section gives the judgement standards when inspecting disassembled parts.

This manual documents torque specifications for components to ensure proper service interval reliability.

FAQ

Identify the correct service interval parameters? keyboard_arrow_down

1050±50 rpm is the specified low idling speed without load (accelerator pedal and hand accelerator released in «minimum» position).

What procedures documented system architecture? keyboard_arrow_down

Page 85 details the CLSS system structure, including the variable flow pump, control valve, and working equipment.

Determine the precise tool requirements? keyboard_arrow_down

Feeler gauges are required for adjusting valve clearance, specifically an A1 feeler gauge to adjust the tappet until it touches the gauge.

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Reviews (2)

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New
This service manual is a game changer! The detailed instructions and diagrams make repairs straightforward. I had a smooth download experience, and the support team was incredibly responsive when I had questions. Highly recommend!
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New
The manual covers everything from basic maintenance to complex troubleshooting. The download link was sent promptly, and I received excellent assistance via email when needed. Great resource for both pros and DIYers!