JCB 805 & 806 Hydraulic Excavator Service Manual

JCB 805 & 806 Excavator Technical Manual

• Covers 1994–2005 JCB 805 and 806 hydraulic excavators, including configurations with standard dippers, rubber or steel track options, and cab-mounted controls
• Official JCB publication P/N 9803/9290, Issue 1/Issue 2, detailing technical system descriptions and routine maintenance workflows
• Includes 85 technical illustrations, 12 hydraulic/electrical system schematics, and 4 major torque-specification reference tables for component assembly
• Accessible from your device as soon as the order is placed
• Permanent availability in your purchase account — no re-buy required
• Laid out for standard letter and A4 printing
• Indexed PDF search covers every chapter and appendix
• This 9803/9290 publication serves as the primary factory reference for the 805 and 806 hydraulic excavator series, documenting critical clearances and component service values missing from general operator guides

Component Service and Maintenance Documentation

The 1994–2005 JCB 805 and 806 service manual organizes technical data across multiple sections, beginning with general machine identification, cab operations, and controls configuration. Detailed chapters provide documentation for the removal and replacement of front-end components, including bucket linkages, dipper arms, boom structures, and kingpost assemblies. The manual further outlines hydraulic system maintenance, fuel system service, and procedures for preparing the machine for storage or transport. Maintenance schedules list intervals ranging from daily walk-around checks to 2000-hour service requirements.

Technical Specifications and Fluid Data

This JCB 805 & 806 service manual contains comprehensive data tables regarding system capacities, hardware torque settings, and performance parameters. Slew ring to undercarriage bolts are documented with a 280 Nm specification, while counterweight bolts are rated at 476 Nm. Coolant system capacity is listed at 13.5 liters in the lubrication chart. For further insight on what an OEM service publication covers refer to the detailed appendices. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. An official 312-page JCB OEM workshop manual covering the 1994–2005 805 and 806 hydraulic excavators, documenting engine, chassis, electrical, and hydraulic system specifications for the 9803/9290-series build.

Document Reference: 9803/9290, Issue 1/Issue 2