JCB JS370 Tracked Excavator Service Manual
871 pages · Publication 9813-2250-1
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- Models
- JS370
- Serial coverage
- from SN 2050750 Onwards
- Manual type
- Service Manual
- Pages
- 871
- Publication
- 9813-2250-1
- Condition
- Brand new
What's inside
From the manual's own table of contents: 5 sections, 560 entries. See sample pages (PDF, 448 KB)
General47 topics
- Service Requirements
- Introduction
- Owner/Operator Support
- Service/Maintenance Agreements
- Fit for Purpose Tests for Lifting Equipment
- Obtaining Replacement Parts
- Health and Safety
- Lubricants
- Hygiene
- Storage
- Waste Disposal
- Handling
- First Aid - Oil
- Spillage
- Fires
- Battery
- Warning Symbols
- First Aid - Electrolyte
- Service Schedules
- How to Use the Service Schedules
- Calendar Equivalents
- Pre Start Cold Checks, Service Points and Fluid Levels
- Functional Test and Final Inspection
- Service Intervals for Attachments
- Periodic Replacement of Safety Related Components
- Fluids, Lubricants and Capacities
- JS370 and Variants
- Typical Lubrication Chart
- Coolant Mixtures
- Fuel
- Fuel Specifications
- Cleanliness
- Fuel Bulk Storage
- Fuel Analysis
- Tools
- Carrying Tools onto the Machine
- Locations
- Prepare the Machine for Maintenance
- How to Make the Machine Safe (Excavator Lowered)
- Cleaning the Machine
- Detergents
- Pressure Washing and Steam Cleaning
- Preparing the Machine for Cleaning
- Exterior
- Interior
- Cleaning the Tracks
- Cleaning the Radiator and Oil Cooler
Section 3 - Maintenance143 topics
- Checking for Damage
- Check the Machine Body and Structure
- Check the Seat and Seat Belt
- Checking the FOPS Structure
- Cab Mounted
- Frame Mounted
- Daily Checking
- Greasing
- Slew Ring Bearing
- Slew Ring Teeth and Slew Pinion
- Greasing Points
- Electrical System
- Battery Isolator
- Battery Disconnection/Connection
- Terminal Cleaning
- Checking the Electrolyte Level - Low Maintenance Batteries
- Breather Cleaning - Low Maintenance Batteries
- Battery Inspection - Maintenance Free Batteries
- Jump-Starting the Engine
- Fuses
- Fuse Identification
- Bolt and Nut Torque Specifications
- Engine
- Oil and Filter
- Checking the Oil Level
- Changing the Oil and Filter
- Cooling System
- Checking the Coolant Level
- Changing The Coolant
- Fan Belt
- Checking the Fan Belt Tension
- Fitting a New Fan Belt
- Engine Air Filter
- Changing the Outer Air Filter Element
- Changing the Inner Air Filter Element
- Fuel System
- Draining Fuel Tank Impurities
- Draining the Primary Filter/Sedimenter
- Changing the Primary Filter/Sedimenter Element
- Changing the Fuel Feed Pump Filter
- Draining the Main Filter/Sedimenter
- Changing the Main Filter/Sedimenter Element
- Bleeding the System
- Hydraulic System
- Releasing Tank Pressure
- Releasing the Hydraulic Pressure
- Oil and Filters
- Checking the Fluid Level
- Topping-up Fluid Level
- Changing the Fluid
- Cleaning/Changing the Suction Strainer
- Changing the Return Filter
- Changing the Plexus Filter
- Changing the Air Breather Element
- Changing the Pilot Oil Filter
- Changing the Breaker In-line Filter
- Changing the Drain Line Filter
- Draining Water and Sediment from the Hydraulic Tank
- Air Bleeding Procedures
- Bleeding Air from the Hydraulic Pump
- Air Bleeding from Rams
- Air Bleeding from the Slew Motor
- Slew Gearbox
- Checking the Slew Gearbox Oil Level
- Changing the Slew Gearbox Oil
- Tracks and Running Gear
- Tracks
- Checking/Adjusting the Track Tension
- Checking Rollers and Idler Wheels for Oil Leaks
- Track Plate Inspection
- Running Gear
- Checking the Track Gearbox Oil Level
- Changing the Track Gearbox Oil
- Bucket
- Checking/Adjusting For Side Play
- Windscreen Washer
- Checking the Level
- Fire Extinguisher (If fitted)
- Troubleshooting
- Engine and Related Area
- Monitor Display - Fault Messages
- Operations
- Hydraulic pump
- Working Attachments
- Travel
- Slew
- Hydraulic ram
- Air Conditioning (option)
- Automatic Temperature Control (ATC) System
- Heater/Air Conditioning Controls (ATC)
- Air Conditioning System Operation
- ATC Control Panel
- Safety Procedures
- Air Conditioning
- Preliminary Checks
- HVAC/Air Conditioning Unit
- Removal
- Replacement
- Air Conditioning Compressor
- Removal and Replacement
- Cab Structure
- Direct Glazing
- Checks
- Cab Panel Removal
- Right Hand Cab Panels
- Left Hand Cab Panels
- Battery Installation
- Circuit Symbols
- Inputs and Outputs
- Component Identification
- Schematic Diagram
- A.M.S (Advanced Management System)
- Operation
- The AMS System
- Circuit Concepts
- Inputs
- Digital inputs (on/off switch type inputs)
- Analogue input (i.e. sensor type inputs)
- Outputs
- Pulse Width Modulation (PWM)
- ECU1/EMS/FACIA Power Supply and Network
- ECU 1 Supply to Output Drivers
- Engine Throttle Control
- Engine Throttle Control for Each Mode
- Pump Control for Each Mode
- A" Auto Mode
- E" Economy mode
- L" Lifting mode & "P" Precision mode
- RPM Setting Selection
- mA Setting Selection
- Hardware Sensing
- Auto Boost Pressure
- Engine Oil Level Warning
- Engine Pre Heat (Glow plugs)
- Engine Automatic Warm Up
- Engine Automatic Idle
- Engine One Touch Idle
- Engine Auto Idle and One Touch Idle
- Engine Start/Stop
- Starting/Stopping the engine
- Pressing the Emergency Stop Button
- Limp Mode system
- Lever Lock
Section C - Electrics180 topics
- Servo Isolator
- Wiper
- Lower Wiper (option)
- Washer
- Horn
- Travel Alarm
- Soft/Hard (Cushion)
- Slew lock (100% Slew Brake)
- Slew Brake Solenoid Valve Failure
- 3-Speed Travel
- E" Economy, "P" Precision & "A" Auto Modes
- sition and Pump "Q max cut output
- L" Lifting Mode
- Work Lamps
- Viscous Fan
- Fuel Level Sensor/Warning
- Engine Temperature Sensor/Warning
- Coolant Level Warning
- Air Filter Blocked Warning
- Hydraulic Temperature Sensor/Warning
- Alternator/No Charge Warning
- Quick hitch (option)
- Overload Caution (option)
- Beacon
- Hammer Only
- Scrap Magnet Option
- Set the Minimum Engine RPM for Scrap Magnet Use
- Cab Interior Lamp
- Refuelling Pump
- ECU1 Requirements
- Automatic Mode
- Manual Mode
- Wake-up
- Limitations
- Heated Seat
- Radio and Cigar Lighter
- Radio
- Cigar lighter
- Service Required Warning
- Cancellation of the Service indicator
- EMS Set Menu
- EMS Set + Mode Menu
- EMS Set+Mode (20 sec) Menu
- Service Off
- Solenoid Override
- Horse Power Control Data Logging Facility
- Throttle Calibration
- JCB Servicemaster
- Using Servicemaster
- Selecting Service Tool Applications
- JS Machine Pages
- Vehicle Setup Icon
- Diagnostics Icon
- Service History Icon
- Data Logger Icon
- Flashloader Icon
- HP Flashloader Icon
- ECM Setup Tool
- Injector Checker
- Fault Finding Guide Icon
- Technical Data
- Tier 3 Troubleshooting
- Electrical Error Codes
- System Menus
- Using ECM Setup
- Write QR code
- Read Engine Details
- Write Engine Details
- HPSetup Overview
- Features
- Using HPSetup
- DLA Port Configuration
- Data Link Adaptor
- DLA Trouble Shooting
- HPDataLogs
- Starting HPDatalogs
- User Functions
- Database Selection Criteria
- Tab Box Options
- Working Hours
- Engine Coolant
- Hydraulic Oil
- Error Logs
- HP Control Monitoring
- Downloading the Running Data
- Exporting Data
- Printing Reports
- User Input
- Service History
- Using HP Service
- FLASH Programming Application
- FLASHLOADER" Training Guide
- Using FLASHECU
- Introduction to the Diagnostics Tool
- Connecting to the Vehicle
- Starting Diagnostic Mode
- Circuit Diagrams
- Indicator Lights (LEDs)
- Stopping Diagnostic Mode
- Language Setting
- Electrical Fault Text Messages Displayed on the EMS
- Electrical fault error code
- Changing Machine Components
- Fault Diagnosis (General)
- Permanent Battery Supply (Ignition Off)
- Ignition On
- Ground Tests
- Can - Bus Network Tests
- Harness Tests
- Unit Tests
- Fault Diagnosis ECU-1
- EMS Failure
- Fault Diagnosis - Facia Switch Panel (FSP)
- Testing of ECU Inputs + Outputs
- Testing Low Side Input
- Testing High Side Input
- Testing Low Side Output
- Testing High Side Output
- Using a Multimeter
- Measuring DC Voltage
- Measuring Resistance
- Measuring Continuity
- Measuring Frequency
- Testing a Diode or a Diode Wire
- Maintenance
- Testing
- Specific Gravity Testing
- Wiring Harness Repair
- Repair Procedure
- Harness Interconnection
- Main Harness
- Connector Location
- Connector Identification
- Fascia Link Harness - Type 1
- Fascia Link Harness - Type 2
- Fascia Link Harness - Type 3
- Cab Harness - Type A
- Engine Harness - Type A
- Cab Harness (includes Engine Harness) - Type B
- Cab Harness (includes Engine Harness) - Type C
- General Data
- Main Hydraulic Pump
- Servo Pump
- Proportional Solenoid
- Slew Motor
- Main Control Valve
- Spool Stroke vs Pilot Pressure
- Boom Ram
- Dipper Ram
- Bucket Ram
- Introduction to Hydraulic Schematic Symbols
- General (Basic and Functional Symbols)
- Control Valves
- Example of Schematic Circuit
- Example Circuit Key
- Hydraulic Schematic
- Main Servo/Pilot Line
- Components
- Cab Servo/Pilot Line
- Servo/Pilot Pressure and Return Line
- Neutral Circuit
- Straight Line Travel
- Travel - Middle Speed
- Boom Up
- Boom Down
- Dipper Out
- Dipper In
- Bucket Opening
- Bucket Close
- Priority Valves
- Boom over Slew Priority (A)
- Slew over Dipper Priority (B)
- Boom Priority over Bucket (C)
- Slew Circuit
- Slew over Dipper Priority (A)
- 100% Slew Lock
- Merged Flow
- Hammer Circuit
- Description
- Port Identification
Section E - Hydraulics130 topics
- Hydraulic Pump Operation
- Main Pumps (P1 and P2)
- Pump Hydraulic Circuit Diagram
- Hydraulic Pump/Regulator Exploded View
- Hydraulic Pump/Regulator Plan View
- Hydraulic Pump Removal and Replacement
- Hydraulic Pump Dismantling and Assembly
- Dismantling
- Assembly
- Regulator Dismantling and Assembly
- Coupling Removal and Replacement
- Function
- Dismantling and Assembly
- Inspection
- Fault Finding
- Slew Brake (CT1)
- Isolator (CT2)
- Slew Lock (CT3)
- Maximum flow cut (CT4)
- Stage travel (CT5)
- Boom Priority (CT6)
- Stage relief (CT7)
- Cushion control (CT8)
- Cushioned Mode - Hand Controller In Neutral
- Cushioned Mode - Hand Controller at Dipper In
- Cushioned Mode - Hand Controller Moved from Dipper In to Neutral
- Anti Cavitation
- Cushion Control Off
- Motor Operating principles
- Slew Brake Operation
- Motor Does Not Rotate
- Motor Rotates in the Reverse Direction
- Motor Speed is Low
- Motor Brake Working Poorly
- Motor is Driven by Exterior Torque
- Oil Leakage
- Hydraulic Motor Components
- Wear Limits
- Sliding Surface Roughness
- Relief Valves
- Precautions During Use
- Installation
- Caution During Use
- Maintenance, Inspection Points
- Typical Bucket Ram
- Typical Boom Ram
- Typical Dipper Ram
- Typical Triple Articulated Boom (TAB) Ram
- Dismantling the Piston Rod from the Cylinder Tube
- Dismantling the Piston Rod
- Removing the Piston Seals
- Removing the Cylinder Head Seals
- Assembly of Piston Seals
- Before Assembly
- Assembling the Cylinder Head Seals
- Assembly of the Piston Rod
- Assembly of Piston Rod in Cylinder Tube
- Maintenance Specifications
- Use Limit
- Make the Machine Safe
- Pressure Testing - General
- Confirmation of the Oil Temperature
- Warming-up Procedure
- Pressure Testing Points
- Pressure Relief Valve Location
- Main Relief Valve (MRV) Pressure
- Servo Relief Pressure
- Slew Motor Pressure Relief
- Auxiliary Relief Valves
- General
- Option ARV (Monoboom)
- Travel Motor Relief Pressure
- Hydraulic Contamination
- Hydraulic Fluid Quality
- Effects of Contamination
- Cleaning Operation
- Procedure
- Contaminant Standards
- Filters
- Relief Valve
- Hydraulic Rams
- Hydraulic Ram Faults and Remedies
- Fault Finding Tests
- Slow or Underpowered
- Harsh Operation When Selecting
- Tracking Off Line
- Additional information
- Poor Tractive Effort
- Loss of Creep Speed
- Loss of High Speed
- Slew Bearing Faults
- Test 001: Testing Negative Control Signal
- Test 002: Test Max Flow Signal
- Test 003: Testing Main Pump Pressure
- Test 004: Testing Horsepower Control
- Test 005: Checking the Operation of the Main Hydraulic Spool
- Test 006: Test the Pressure Switches
- Symptoms of Pressure Switch Failures
- Test 007: Testing Engine Speed Settings
- Pressure Switches vs Engine Speed
- Example
- Test 008: Testing Machine Cycle Times
- Bucket Ram Speed
- Dipper Ram Speed
- Boom Ram Speed
- Slew Speed
- Travel Speed
- Travel Linearity
- Test 011: Testing Slew brake pressure
- Test 012: Testing Track Motor Relief Valve Settings
- Test 013: Testing Track Motor Drain Line Flow Rate
- Test 014: Loss of High Speed Tracking
- Test 016: Flow testing Hydraulic Pumps
- To Confirm Minimum Flow Setting
- To Confirm Maximum Flow Setting
- To Confirm Horse Power Control
- Test 016 - Flow Testing Hydraulic Pumps - Record Sheet
- Test 017: Testing Slew Bearing
- Checking Slew Bearing Backlash
- Slew Backlash Limits
- Checking Slew Bearing Vertical Lift
- Ram Creep Tests - All Services
- Test for Ram Creep
- Boom service
- Dipper service
- Bucket Service
- Allowable ram creep rates
- Ram seal bypass
- Port relief valve (ARV) failure
- Quick hitch/Auxiliary circuits
Section F - Transmission20 topics
- Travel Equipment
- Middle Speed
- Slow Speed Travel (Creep)
- High Speed
- Brake Valve
- Brake Function
- Counterbalance Valve
- Shuttle Function
- Parking Brake
- Rotation Direction
- Precautions During Installation
- Start Up and Running In
- Start Up
- Running In
- Transmission
- Traction Motor
- Speed Range Changing
- Disassembly and Assembly - JS370
- Dismantling and Assembly - JS370
- Torque Specifications
Section K - Engine35 topics
- Engine Components
- 4HK/6HK
- Engine Coolant Temp Sensor
- Connector
- Schematic
- Resistance
- Voltage
- Overheat Switch
- Common Rail Pressure Sensor
- Feedback vs Pressure
- Engine Oil Pressure Sensor
- Crankshaft Position (CKP) Sensor - 4HK/6HK
- Checking Circuit Resistance
- Crankshaft Position Sensor - 4JJ
- Camshaft Position (CMP) Sensor - 4HK/6HK
- Camshaft Position (CMP) Sensor - 4JJ
- Exhaust Gas Re-circulation (EGR) Valve
- EGR Valve Check
- Checking Resistance
- Typical Voltages
- Suction Control Valve
- Fuel Temperature (FT) Sensor
- Temperature vs Resistance
- Temperature vs Voltage
- Boost Temperature Sensor
- Schematics
- Resistance vs Temperature
- Boost Pressure Sensor
- Pressure vs Voltage
- Injector
- Glow Plug
- Engine Oil Level Sensor
- Air Intake Temperature Sensor
- Barometric Pressure Switch
- Connector Numbers on the ECM
Inside this manual
Real pages from this service manual (871 pages). Open the sample pages (PDF, 448 KB)
- Troubleshooting, page 154: Section 3 - Maintenance
- Diagram, page 388: Harness Data
- Specifications, page 440: Technical Data
- Color page, page 590: Section E - Hydraulics
- Color page, page 323: Section C - Electrics
This is a service manual
Here's how it compares to the other manual types.
This manual
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, 871 pages
Quantity one is the manual described above.
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Other editions and similar models
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