Description
JCB JS370 Service Manual for tracked excavators from machine serial number 2050750 onwards. This factory publication was issued by JCB Technical Publications for trained distributor service engineers and professional personnel responsible for maintaining and repairing hydraulic earthmoving equipment.
At 871 pages, the manual provides workshop information across the machine’s principal service areas. Its organised sections cover general information, safety, maintenance, body and framework, electrics, hydraulics, transmission, track and running gear, and engine systems.
The publication includes guidance on machine identification, workshop practices, service tools, torque settings, maintenance requirements and component repair. Illustrations support the technical text, with model differences identified where applicable.
GENERAL INFORMATION AND WORKSHOP PRACTICE
The opening section explains how to use the publication and establishes the workshop conventions applied throughout the manual. Subjects confirmed in this section include:
- Machine model and serial-number applicability
- Machine identification plate location
- Product Identification Number interpretation
- Engine identification information
- Left-hand and right-hand orientation
- Section numbering and cross-references
- General torque-setting guidance
- Service-tool information
- Oil seal, gasket and worn-component renewal guidance
- Cleanliness precautions for opened hydraulic connections
CARE, SAFETY AND MAINTENANCE
Dedicated care and safety information provides the warnings and cautions relevant to professional workshop procedures. The maintenance section supplies the scheduled servicing information required to support routine machine upkeep.
- Workshop warnings and cautions
- Safe maintenance and repair practices
- Service schedules
- Recommended lubricants
- Machine identification before servicing
- FOPS identification and protection information
- Component cleaning and lubrication practices
- Prevention of hydraulic fluid loss and dirt ingress
BODY, FRAMEWORK AND ELECTRICS
Separate alphabetically coded sections address the JS370 body and framework and its electrical equipment. These sections form part of the manual’s component-based dismantling, overhaul and service structure.
- Body and framework section
- Cab and protective-structure information
- Machine frame identification
- FOPS data plate information
- Electrical systems section
- Technical data and section information where provided
- Component descriptions and illustrations where applicable
HYDRAULICS AND TRANSMISSION
The JCB JS370 Service Manual includes dedicated sections for the hydraulic and transmission systems. These are arranged for technicians carrying out systematic servicing, dismantling and overhaul work on the applicable machine.
- Hydraulic systems section
- Hydraulic circuit descriptions where provided
- System operating descriptions where provided
- Hydraulic component dismantling information
- Hydraulic component overhaul information
- Transmission systems section
- Transmission component service information
- Relevant technical data and illustrations
TRACK, RUNNING GEAR AND ENGINE
Further sections cover the tracked excavator’s running gear and engine. This keeps information for these major assemblies separate from the hydraulic, electrical and structural sections.
- Track and running gear section
- Running-gear component information
- Component dismantling and overhaul coverage
- Engine systems section
- Engine identification details
- Engine component service information
- Technical data and operating descriptions where included
JCB JS370 SERVICE MANUAL MODEL COVERAGE
Model: JCB JS370
Machine type: Tracked excavator
Serial numbers: 2050750 onwards
Market version: Not stated in the supplied publication pages.
MANUAL DETAILS
- Manual type: Factory service manual
- Manufacturer: JCB
- Publication number: 9813/2250-1
- Page count: 871 pages
- Copyright shown: 2004 JCB Service
- Publisher: JCB Technical Publications
This manual is intended for technicians with a sound knowledge of workshop practice, safety procedures and the maintenance of hydraulic earthmoving equipment. It is suited to excavator repair workshops, JCB service personnel and fleet engineering departments working on the stated JS370 serial-number range.
Use the machine identification plate and serial number to confirm applicability before beginning work. The JCB JS370 Service Manual applies specifically to machines from serial number 2050750 onwards.

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