JCB 801 Tracked Excavator Service Manual

For the JCB 801 Tracked Excavator: diagnostics, service, and parts information covering hydraulic systems, engine, and running gear. PN 9803/3161

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Document Details

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Document Number / Seller:
30581 / Patricia Peterson
File Size:
7.83 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Mini Excavator
Last updated / verified
Jul 18, 2025

Models Covered & Key Technical Specifications

OEM-Grade Operations Reference Manual: Mini Excavator Official JCB 801 Tracked Excavator - Service & Maintenance Procedures Manual Technical-Repository

Operational-Scope: 801 Tracked Excavator // Service-Level: Mini Excavator / Hydraulics Logic // Operational-Scope: Maintenance, Repair, and Diagnostics.

Service-Nexus Operational-Logic Context
General Maintenance Schedules Overview
Hydraulics System Diagrams Schematics
Engine Specifications Technical Data
Gearboxes Component Breakdown Assemblies
Electrics Troubleshooting Fault Finding

Technical content addresses:

General

This section provides an overview of the machine, including lubrication and capacities. It details the necessary fluid types and their respective quantities for optimal operation and maintenance. Illustrations clarify basic component relationships and the use of diagnostic color coding for pressure indications.

Hydraulics

This chapter details the hydraulic circuit, including pump flow rate, relief valve operating pressures, and ram specifications. It covers the overall hydraulic system, focusing on the main components, their functions, and the fluid routing for various operations such as boom, dipper, and slew movements.

Engine

This section focuses on the engine specifications, including bore, stroke, displacement, and torque settings. It covers routine maintenance procedures such as draining and filling engine oil, and replacing the oil filter. Detailed information on fuel injection, ignition, and cooling systems is also provided.

Gearboxes

This section describes the function and maintenance of the track and slew gearboxes. It outlines the operation of each type of gearbox, including their oil capacities and procedures for checking and refilling the oil. Diagrams illustrate the internal components of the gearboxes.

Electrics

This part of the manual covers the electrical system, including battery testing, alternator operation, and fuse box layout. It details the electrical circuits, component ratings, and diagnostic procedures to identify and resolve common electrical faults. Illustrations show the location of electrical components and wiring diagrams.

This manual documents torque specifications for components to ensure proper rotational loosening prevention.

Professional Workshop Service Manual & Technical Specifications

OEM-Grade Operations Reference Manual: Mini Excavator Official JCB 801 Tracked Excavator - Service & Maintenance Procedures Manual Technical-Repository

Operational-Scope: 801 Tracked Excavator // Service-Level: Mini Excavator / Hydraulics Logic // Operational-Scope: Maintenance, Repair, and Diagnostics.

Service-Nexus Operational-Logic Context
General Maintenance Schedules Overview
Hydraulics System Diagrams Schematics
Engine Specifications Technical Data
Gearboxes Component Breakdown Assemblies
Electrics Troubleshooting Fault Finding

Table Position: TOP

Technical content addresses:

General

This section provides an overview of the machine, including lubrication and capacities. It details the necessary fluid types and their respective quantities for optimal operation and maintenance. Illustrations clarify basic component relationships and the use of diagnostic color coding for pressure indications.

Hydraulics

This chapter details the hydraulic circuit, including pump flow rate, relief valve operating pressures, and ram specifications. It covers the overall hydraulic system, focusing on the main components, their functions, and the fluid routing for various operations such as boom, dipper, and slew movements.

Engine

This section focuses on the engine specifications, including bore, stroke, displacement, and torque settings. It covers routine maintenance procedures such as draining and filling engine oil, and replacing the oil filter. Detailed information on fuel injection, ignition, and cooling systems is also provided.

Gearboxes

This section describes the function and maintenance of the track and slew gearboxes. It outlines the operation of each type of gearbox, including their oil capacities and procedures for checking and refilling the oil. Diagrams illustrate the internal components of the gearboxes.

Electrics

This part of the manual covers the electrical system, including battery testing, alternator operation, and fuse box layout. It details the electrical circuits, component ratings, and diagnostic procedures to identify and resolve common electrical faults. Illustrations show the location of electrical components and wiring diagrams.

This manual documents torque specifications for components to ensure proper rotational loosening prevention.

FAQ

What are the **proper** clearance measurements? keyboard_arrow_down

0.015 mm (0.0006 in) is the allowable limit for valve body bore and plunger clearance.

Specify the **standard** torque specifications. keyboard_arrow_down

58-69 Nm (43-51 lbf ft) is the torque specification for track gearbox cap screws.

What are the **necessary** safety precautions? keyboard_arrow_down

Fine jets of hydraulic oil at high pressure can penetrate the skin. Do not use your fingers to check for leaks. Hold a piece of cardboard close to suspected leaks, and then inspect the cardboard for signs of hydraulic oil. If hydraulic oil penetrates your skin, get medical help immediately.

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