JCB 8055, 8065 Midi Excavator Service Manual – 9803/9890-2

This workshop repair service manual PDF download for the 8055, 8065 JCB Midi Excavator has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to fully at every opportunity.

APPLICABLE MODELS :

This manual provides information for the following model(s) in the JCB machine range:

– JCB Excavator 8055 from S/N: 1536000 to 1537499
– JCB Excavator 8065 from S/N: 1537500 to 1538999

TABLE OF CONTENTS :

Section 1 – General Information
Section 2 – Care and Safety
Section 3 – Maintenance
Section A – Attachments
Section B – Body and Framework
Section C – Electrics
Section D – Controls
Section E – Hydraulics
Section F – Gearboxes
Section J – Track and Running Gear
Section K – Engine

MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
P/N : 9803/9890-2
Total Pages : 402

This JCB Midi Excavator service manual / repair manual / workshop manual PDF download contains specs, diagrams, actual real photo illustrations, and schemes. In addition to space savings, nice thing about having completly searcheble PDF files instead of a hard-printed manual is that you can use the Search feature in your PDF reader software (Adobe Acrobat) to find just what your looking for and just print out the exact pages you need or all manual easily. This is the same manual your local dealer will use when doing a repair. This is a must for the Do-It-Yourselfer! Saving Yourself $$$$$$ In Service Repair And Maintenance Costs !!!!

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9803-9890
ManualSubHeading – 8055, 8065
Section 1 – General Information
Section 2 – Care and Safety
Section 3 – Maintenance
Section A – Attachments
Section B – Body and Framework
Section C – Electrics
Section D – Controls
Section E – Hydraulics
Hydraulics
Technical Data
All Machines
Basic System Operation
Introduction to Hydraulic Schematic Symbols
General (Basic and Functional Symbols)
Control Valves
Example of Schematic Circuit
Example Circuit Key
Service Procedures
Hydraulic Contamination
Hydraulic Fluid Quality
Effects of Contamination
Cleaning Operation
Procedure
Contaminant Standards
Filters
Schematic Circuits
All Machines
Component Key
Hose Colour Data
Neutral Circuit
Main Services Circuit
Traction Circuit
Slew Circuit
Fault Finding
Hydraulic System
General Fault Diagnosis
Slew Motor and Gearbox
Main Relief Valve
Removal and Replacement
Removal
M.R.V. Location and Identification
Replacement
Testing and Setting
Auxiliary Relief Valves
Removal and Inspection
Removal
A.R.V. Location and Identification
Inspection
Testing and Setting
Pressure Maintenance Valve
Description
Removal and Replacement
Removal
Replacement
Testing and Setting
Setting Servo Pressure
Testing the P.M.V.
Hydraulic Pump
Description
Testing and Setting
Setting the Pressure Control Valve
Setting the Flow Control Valve
Removal and Replacement
Removal
Replacement
Dismantling and Assembly
External Components
Dismantling
Assembly
Replacing the Drive Shaft Seal
Replacing the Control Valves
Internal Components
Dismantling
Assembly
Power Control Valve Assembly
Pump
Track Motor/Gearbox
Description
Component Key
Hydraulic Motor Section
Two Speed Motor Operation
Hydraulic Valve Section
Parking Brake Section
Removal and Replacement – 8055
Removal
Replacement
Dismantling and Assembly – 8055
Track Motor
Dismantling
Assembly
Track Gearbox
Dismantling
Inspection
Assembly
Brake Valve
Dismantling
Assembly
Dismantling and Assembly – 8065
Slew Motor/Gearbox
Description – 8055
Component Key
Component Key
Hydraulic Motor Section
Parking Brake Section
Shockless Relief Valve Section
First Stage
Second Stage
Check Valve Section
Parking Brake Timer Valve Section
Parking brake released
Parking brake applied
Removal and Replacement – 8055
Removal
Replacement
Dismantling and Assembly – 8055
Slew Motor
Dismantling
Inspection
Assembly
Slew Gearbox
Dismantling
Inspection
Assembly
Parking Brake Timer Valve
Cross Line Relief Valve
Dismantling and Assembly – 8065
Control Valve
Description
Component Locations
Schematics
Regeneration
Removal and Replacement
Removal
Adaptors
Replacement
Torque Settings
Dismantling, Inspection and Assembly
Dismantling
Inspection
Assembly
Control Valve Sections
Inlet/Outlet
Torque Settings and Key
Flow Regulator Filter Replacement
Slew
Torque Settings and Component Key
Boom
Torque Settings and Component Key
Auxiliary
Torque Settings and Component Key
Bucket
Torque Settings and Component Key
Dipper
Torque Settings and Component Key
Dozer
Torque Settings and Component Key
Swing
Torque Settings and Component Key
Low Flow
Torque Settings and Component Key
Track Right
Torque Settings and Component Key
Track Left
Torque Settings and Component Key
Rotary Coupling
Removal and Replacement
Removal
Replacement
Dismantling, Inspection and Assembly
Dismantling
Inspection
Assembly
Hydraulic Rams
Precautions During Use
Installation
Caution During Use
Maintenance, Inspection Points
Removal and Replacement
Boom, Dipper and Bucket Rams
Removal
Replacement
Dozer Ram
Removal
Replacement
Swing Ram
Removal
Replacement
Dismantling and Assembly
All Rams
Dismantling
Inspection
Assembly
Bucket Ram
Dozer Ram
Swing Ram
Boom Ram
Dipper Ram
Section F – Gearboxes
Gearboxes
Technical Data
Track and Slew Gearboxes
General Description
Track and Slew Gearboxes
Section J – Track and Running Gear
Section K – Engine
Engine
General
Technical Data

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