1994-2005 JCB 801.4, 802, 802.4, 802 Super Mini Excavator Service Manual

Service and repair procedures for JCB Mini Excavator 801.4, 802, 802.4, 802 Super models: Covers engine, hydraulics, controls, and electrical systems. Part Number: 9803/3140

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Document Details

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Document Number / Seller:
28029 / George Cooper
File Size:
18.84 MB
File Type:
PDF
Language:
English
Pages:
293
Printable:
Yes
Category:
Mini Excavator
Last updated / verified
Dec 22, 2025

Models Covered & Key Technical Specifications

JCB 801.4, 802, 802.4, 802 Super (9803/3140 Issue 4) - Comprehensive Mini Excavator Service Manual 1994-2005 Procedure-Library

JCB 801.4, 802, 802.4, 802 Super (9803/3140 Issue 4) | Comprehensive Mini Excavator Service Manual Vault

  • Established Tightening Data: 39.9 mmdia. establishes the critical pivot pin tolerances for boom-to-dipper connections.
  • Operational Fill Levels: For optimal operation, 40 I/D mm signifies the required clearance measurement for boom-to-kingpost connections.
  • Essential Tolerance Values: 39.9 mmdia. -- denotes the allowed tolerance for boom-to-dipper pivot pin Diameter.
  • Baseline Tightening Data: The boom pivot bushes require 39.9 mmdia. for standard operation clearance.
  • Integral Fill Levels: For correct function, 39.9 mmdia. dictates the required clearance for boom-to-dipper connections.
  • Specific Tightening Data: 39.9 mmdia. establishes the optimal pivot pin dimensions for proper boom and bucket linkage.

Professional Workshop Service Manual & Technical Specifications

Multi-System Technical Training Manual: JCB 801.4, 802, 802.4, 802 Super - Comprehensive Mini Excavator Service Manual 1994-2005 Procedure-Library

Serial-Range: 1994-2005 // Repair-Classification: Operation & Maintenance Manual // Operational-Framework: Full Coverage Methodically demanding, this technical manual covers the JCB Mini Excavator series. Maintenance information covers all systems and procedures, providing thorough documentation for each subsystem.

Technical notes are provided for component repair, including troubleshooting and system diagrams.

Quality checks are addressed for all hydraulic circuits and electrical systems.

The fuser assembly section documents lubrication and general maintenance procedures.

The troubleshooting chapter addresses common issues with diagnostic flowcharts.

Cooling system maintenance is addressed in detailed sections.

Torque specifications are documented for various components to ensure proper structural misalignment prevention. Performance-Element Baseline Framework
Boom Pivot Bushing 39.9mm dia. boom-to-dipper connections
Dipper Pivot Bushing 39.9mm dia. boom-to-kingpost connections
Engine Mountings 49-54 Nm critical for operation
Hydraulic Pump 46 Nm drive gear connection
Slew Motor 250 Nm kingpin attachment
Track Motor 38-47 Nm drive system

FAQ

What **necessary** electrical values are detailed for system diagnostics? keyboard_arrow_down

5A is the fuse rating for the main fuse, essential for fast start glow plugs and starter motor operation.

Determine the **recommended** calibration settings for the hydraulic system. keyboard_arrow_down

10.2 kgf m is the torque specification for securing the slew ring, critical for proper operation.

What **calibrated** clearance measurements are noted for critical pivot points? keyboard_arrow_down

39.9 mm is the reference value for pivot pin diameter, crucial for accurate linkage alignment.

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Reviews (4)

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The service manual covers everything from basic maintenance to complex repairs. I appreciate the thoroughness of the explanations. A must-have for JCB owners!
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The download process was seamless, and I received my link almost instantly. The manual is incredibly detailed and has helped me immensely with maintenance tasks. Very satisfied!
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This manual is a lifesaver for anyone working on JCB Mini Excavators. The detailed instructions are easy to follow, and I love the troubleshooting sections. Highly recommend!
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Had a question about the manual, and the support team responded within hours. They were very helpful! The manual is straightforward and well-organized. Good purchase!