2004 JCB MICRO Service Manual

Get your MICRO back in top shape with this JCB Micro Excavator Service Manual. Covers pump, auxiliary system, relief valve operating pressures, and ram dimensions.

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Document Details

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Document Number / Seller:
27765 / Jerry Allen
File Size:
8.49 MB
File Type:
PDF
Language:
English
Pages:
294
Printable:
Yes
Category:
Mini Excavator
Last updated / verified
Jan 9, 2026

Models Covered & Key Technical Specifications

JCB MICRO Service Manual: 2004

This manual is designed for JCB MICRO series, covering hydraulic systems. It provides essential information to keep your equipment in peak operating condition.

  • Technical Data: Includes detailed information on the Pump system, Auxiliary system, Relief Valve Operating Pressures, and Ram dimensions.
  • Machine Cycle Times: Essential data for testing machine performance with operation cycle times for Boom, Bucket, Dozer, Excavator, and Slew functions.
  • Service Procedures: Covers Hydraulic Contamination, Fluid Quality, Effects of Contamination, Cleaning Operations, Contaminant Standards, and Filters for maintaining system integrity.
  • Operation Description: Explains the General operation of the hydraulic system, Machine Neutral Circuit, Colour Key, Hydraulic Pump Operation, Control Valve Operation, and spool locations.
  • Circuit Diagrams: Provides detailed diagrams for machines up to and from serial number 1148300, illustrating main components and system layouts.
  • Troubleshooting: Offers guidance on general hydraulic fault diagnosis to help identify and resolve issues efficiently.

Professional Workshop Service Manual & Technical Specifications

JCB MICRO Service Manual: 2004

Model-Specs: Micro, Micro Plus, Micro 8008 // Conceptual-Layout: Hydraulic System / Pump, Control Valves, Rams // Service-Level: Comprehensive operational and maintenance data.

This manual provides in-depth documentation for the hydraulic systems of the JCB MICRO, MICRO PLUS, and MICRO 8008 excavators. It details technical specifications, operational procedures, and diagnostic information to ensure optimal performance and longevity of your equipment. Proper maintenance of the hydraulic fluid quality is crucial, as contaminants can significantly impact system performance and lifespan. The manual covers essential procedures such as cleaning operations, filter servicing, and understanding hydraulic circuit diagrams.

TOC Summary Block

  • Hydraulic Pump Operation
  • Control Valve Operation
  • Main Relief Valve (MRV) Operation
  • Auxiliary Relief Valve (ARV) Operation
  • Load Hold Check Valve Functionality

Properly establishing and maintaining the hydraulic system ensures safe and efficient operation. This manual provides the necessary details for understanding the intricate workings of the JCB Micro's hydraulic system, including the function of various components like the pump, control valves, and rams. It also details how to diagnose and resolve potential issues related to hydraulic contamination and pressure management.

The document includes information on track motor and slew motor operations, as well as detailed diagrams of the hydraulic circuits and control valve spool locations. Understanding these systems is key to performing effective maintenance and repairs, ensuring your JCB equipment remains reliable and productive.

FAQ

What is the **maximum** hydraulic pressure for the JCB Micro Plus? keyboard_arrow_down

180 bar is the maximum pressure for the JCB Micro Plus, as detailed in the Technical Data section.

What **procedures** are documented for hydraulic contamination control? keyboard_arrow_down

The manual documents cleaning operations, filter servicing, and contaminant standards to manage hydraulic contamination effectively.

Determine the **specific** hydraulic fluid required for the JCB Micro. keyboard_arrow_down

JCB Hydraulic Fluid 46 is specified for the Micro series, with variations noted for temperatures over 30°C (86°F).

What **specifications** are provided for the dipper ram dimensions? keyboard_arrow_down

The dipper ram for Micro and Micro Plus models has a 50 mm bore and a 30 mm rod diameter, with a 400 mm stroke.

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Reviews (5)

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I found the troubleshooting tips incredibly helpful. The diagrams made repairs straightforward. Highly recommend!
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The manual is extremely detailed and easy to follow. It's a must-have for any JCB Micro owner!
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This manual covers everything you need to know about the JCB Micro. Very pleased with the purchase!
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I had a few questions about the manual, and their support team responded swiftly. Excellent service!
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Rated 4 out of 5 stars