JCB 8080 Mini Excavator Service Manual
401 pages · Publication 9803-9330
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- Models
- 8080
- Manual type
- Service Manual
- Pages
- 401
- Publication
- 9803-9330
- Condition
- Brand new

What's inside
From the manual's own table of contents: 4 sections, 246 entries. See sample pages (PDF, 452 KB)
General Information70 topics
- Identification Plates
- Introduction
- Before Entering the Cab
- Entering/Leaving the Cab
- Opening and Closing the Door
- Opening and Closing the Front Upper Window
- Opening and Closing the Front Lower Window
- Emergency Exit
- Door Sliding Window
- Opening and Closing the Sunblind
- Seat
- Seat Belt
- Location of Controls and Components
- Switches and Controls
- Right Console
- Underseat Tool Box and Cool Box
- Heater/Air Conditioning Controls
- Left Console
- EMS Panel
- Facia Panel
- Redundancy Switch
- Mechanical Engine Speed Override
- Servo Controls Immobilisation
- Cab Interior Light
- Radio (Optional)
- Travel Levers
- Travel Speed Change Button
- Excavating Controls
- Operation
- Slewing
- Boom Swing
- Boom Swing Stop
- Boom Raise/Lower
- Dipper In/Out
- Bucket Close/Open
- Refuelling
- Fuel Level
- Filling the Tank
- Refuelling Pump (optional)
- Before Starting the Engine
- Starting the Engine
- Jump-Starting the Engine
- Warming Up
- Operating in Cold Climates
- Operating in High Temperatures
- Operating in Dusty or Sandy Areas
- Operating in Coastal Regions
- Operating on Wet or Soft Ground
- Preparing for Travel
- Stopping and Parking the Machine
- Working on Slopes
- Digging Near Walls
- Dumping into a Truck
- Dozing and Grading
- Scraping and Cutting
- Backfilling
- Pulling out of Soft Ground
- Installing and Removing a Bucket
- Replacing Bucket Teeth
- Bucket Selection
- JCB Mechanical Quickhitch
- Lifting (Craning) Regulations and Safe Working Loads
- Overload Warning System (Optional)
- Operating Attachments
- Moving a Disabled Machine
- Preparing the Transporting Vehicle
- Driving a Machine onto the Transporting Vehicle
- Securing the Machine
- Unloading a Machine from the Transporting Vehicle
- Sealing and Retaining Compounds
Care & Safety4 topics
- Safety Notices
- General Safety
- Operating Safety
- Maintenance Safety
Routine Maintenance61 topics
- Lubricants and Capacities
- Coolant Mixtures
- Torque Settings
- Hydraulic Fittings and Torque Settings
- Service Schedules
- Revised Service Schedules - Rockbreaker Usage
- Lubricants - Health and Safety
- Cleaning the Machine
- Checking for Damage
- Greasing
- Slew Ring Teeth and Slew Pinion
- Slew Ring Bearing
- Excavator End (Standard Boom)
- Engine Air Filter
- Changing the Elements
- Engine Oil and Filter
- Checking the Oil Level
- Changing the Oil and Filter
- Engine Cooling System
- Checking the Coolant Level
- Changing the Coolant
- Cleaning the Radiator and Oil Cooler
- Air Conditioning
- Checking Compressor Belt Tension
- Engine
- Checking Fan Belt Tension
- Fitting a New Fan Belt
- Fuel System
- Types of Fuel
- Advice
- Draining Fuel Tank Impurities
- Draining the Water Separator
- Cleaning the Water Separator
- Changing the Filter Element
- Bleeding the Fuel System
- Hydraulic System
- Checking the Fluid Level
- Topping-up the Fluid Level
- Replacing the Hydraulic Filter
- Gearboxes
- Checking the Track Gearbox Oil Level
- Changing the Track Gearbox Oil
- Tracks and Running Gear
- Clean the Tracks
- Inspection
- Checking/Adjusting the Track Tension
- Checking the Track Shoes
- Checking the Rollers and Idler Wheels for Oil Leaks
- Electrical System
- Fuses
- Relays
- Battery
- First Aid - Electrolyte
- Checking the Electrolyte Level
- Warning Symbols
- Windscreen Washer
- Service Tools
- General Description
- Weights and Dimensions
- Removal and Replacement
- Section B
Electrics107 topics
- General
- Component Identification
- Schematic Diagram
- System Overview
- Circuit Concepts
- Pulse Width Modulation (PWM)
- Functional Description
- Engine Throttle Control
- Throttle Control
- Throttle Control Auto Idle
- One Touch Idle
- Power Modes
- Pre Heating and Auto Warm
- Engine Emergency Stop
- Redundancy System
- Lever Lock/Servo Isolator
- Wiper
- Washer
- Horn
- Travel Alarm (Optional)
- Slew Brake
- Slew lock (100% Slew Brake)
- High Speed Travel
- High Flow
- Double Acting High Flow (Optional)
- Engine Oil Pressure Warning
- Fuel Level Sensor/Warning
- Engine Temperature Sensor/Warning
- Hydraulic Temperature Sensor/Warning
- Alternator Charging
- Air Filter Blocked
- Quick hitch (Optional)
- Overload Caution (Optional)
- Beacon
- Interior Light
- Service Required Warning
- Types of Message Displayed of EMS
- Menu Messages
- Repetitive Messages
- One Time Messages
- Error Codes
- Engine Throttle Calibration
- Electrical Testing Methods
- Using a Multimeter
- Measuring DC Voltage
- Measuring Resistance
- Measuring Continuity
- Testing a Diode
- Testing of ECU-MIDI (Electronic Control Unit)
- Tools Required
- Repair Procedure
- Maintenance
- Safety
- Testing
- Alternator
- Starting Circuit Test
- Mounting
- Bulb Change
- Slewpan Harness Drawing
- Slewpan Harness Connector Locations - right side
- Slewpan Harness Connector Locations - left side
- Main Cab Harness Drawing
- Main Cab Harness Connector Locations
- Upper Cab Harness Drawing
- Upper Cab Harness Connector Locations
- Boom Light Harness
- Refuel Pump Harness
- Technical Data
- Hydraulic Contamination
- Introduction to Hydraulic Schematic Symbols
- Schematic Hydraulic Circuit
- Spool in Neutral
- Single Spool Operation (Arm/Boom/Bucket/Offset)
- Two Spool Operation - Multi Functioning
- Travel Operation
- 100% Slew Brake
- 50% Slew Brake
- Slew Operation
- Cross Line Relief Valve
- Slew Reduction Gearbox Lubrication
- Dozer Operation
- Pump Theory
- Anti Cavitation
- Pressure Testing
- Fault Finding
- Dismantling and Assembly
- Location of Main Hydraulic Components
- Specification
- Maintenance Specifications
- Control Valve (10 - Section)
- Hose Connections
- Typical Ram
- JCB Ram Sealing Procedure
- Precautions During Use
- Description
- Hydraulic Motor Components
- Reduction Gear Components
- Hydraulic Circuit
- Dismantling
- Assembly
- Motor Bleeding
- Removal
- Replacement
- Replacing the Shoe Plate
- Replacing the Track Link
- Changing from Steel to Rubber Tracks
- Changing from Rubber to Steel Tracks
Inside this manual
Real pages from this service manual (401 pages). Open the sample pages (PDF, 451 KB)
- Diagram, page 247: Harness Data
- Specifications, page 319: Joystick Controllers
- Troubleshooting, page 361: Section F
- Color page, page 280: Section E
- Color page, page 108: System Diagnosis
- Foldout diagram, page 267: Issue 1
This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 401 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).