1994-2005 JCB 802.7, 803, 804 Plus & Super Mini Excavator Service Manual

Technical reference spanning 1994-2005 JCB 802.7, 803, 804 Plus & Super models. This manual covers maintenance, repair, and troubleshooting procedures.

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Document Details

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Document Number / Seller:
28910 / Melissa Torres
File Size:
7.64 MB
File Type:
PDF
Language:
English
Pages:
196
Printable:
Yes
Category:
Mini Excavator
Last updated / verified
Dec 22, 2025

Models Covered & Key Technical Specifications

JCB 802.7, 803, 804 Plus & Super (9803/3145) -- 1994-2005 Consolidated Blueprint | Bundle.

  • Verified System Volume: 1.2 litre establishes the primary hydraulic fluid capacity.

Professional Workshop Service Manual & Technical Specifications

Certified Specification Factory Manual: Mini Excavator Official JCB 802.7, 803, 804 Plus & Super Excavator Service Manual - Comprehensive Maintenance & Repair Procedures (1994-2005) Operations-Manual

Unit-Designations: 1994-2005 JCB 802.7, 803, 804 Plus & Super Mini Excavator / Model-Portfolio: JCB Mini Excavator / Specification-Class: Comprehensive Maintenance & Repair Procedures.

Metric Value Architecture
Publication Number 9803/3145 Reference Data
Applicable Models 802.7, 803, 804 Plus & Super Component Listing
Coverage Years 1994-2005 Data Archive

Major sections focus on: General Information covering identification and basic operations. Electrics detailing wiring harnesses and component specifications. Hydraulics including schematics, pump testing, and component repair. Gearboxes for track and slew systems. Track & Running Gear on maintenance and replacement.

This manual documents torque specifications for hydraulic components to ensure proper gasket seal integrity.

Rigorously mandating detailed technical information, this manual serves as a practical guide for all aspects of the JCB mini excavators.

FAQ

What procedures are **necessary** for checking electrical values? keyboard_arrow_down

12 Volt negative earth system checks are detailed in the "Electrics" section, covering battery inspection and wiring harness specifications.

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

152 bar (2200 psi) is the Dozer MRV pressure setting at 50°C, detailed in "Hydraulics" and "Pressure testing - Main Relief Valves" sections.

What specifications are **calibrated** for clearance measurements? keyboard_arrow_down

0.5 mm (0.02 in) is the maximum allowable warp for piston rods before replacement is necessary, as noted in "Track & Running Gear" section.

Check the **applicable** torque specifications for the track gearbox. keyboard_arrow_down

21.7 lbf ft (29.4 Nm) is the specified torque for plugs in the track gearbox housing, found in the "Gearboxes" section.

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Reviews (5)

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The download process was smooth, and I received the link in my email quickly. The manual itself is comprehensive and easy to follow. Very satisfied!
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This manual has been incredibly helpful for maintaining my excavator. The troubleshooting section is particularly useful!
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Rated 5 out of 5 stars
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I had a question about the manual after downloading it, and the support team was very responsive. They helped me quickly, which I really appreciated.
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This manual is a lifesaver for anyone operating a JCB 802-3-4. Clear instructions and diagrams make complex tasks simple. Highly recommend!