This document is a service manual for Case JX60, JX70, JX80, JX90, and JX95 model tractors, providing comprehensive instructions for repair, maintenance, and overhaul of various systems.
This section outlines general instructions, notes for spare parts and equipment, safety rules, and a list of consumables. It serves as a foundational guide for technicians, emphasizing safety and proper procedures throughout the manual.
Engine System (Section 10)
The engine system section covers detailed specifications, including general specifications, injection pump calibration data, and tightening torques for various components. It provides information on tools required for engine work, cross-sectional views, and diagrams for lubrication and cooling systems. Fault diagnosis procedures are included to assist in troubleshooting engine issues.
- Engine Removal-Installation (10 001 10): Detailed steps for removing and installing the engine.
- Engine Bench Overhaul (10 001 54): Comprehensive instructions for disassembling, inspecting, repairing, and reassembling the engine on a workbench, including checks, measurements, and repairs.
- Radiator Removal-Installation (10 406 10): Procedures for removing and installing the radiator.
- Crankshaft Front Oil Seal Removal-Installation (10 102 70): Steps for replacing the crankshaft front oil seal.
- Coolant Pump Removal-Installation (10 402 10): Instructions for removing and installing the coolant pump.
- Cooling System Thermostat (10 402 30): Information on the cooling system thermostat, likely including testing and replacement.
- Bosch Injection Pump Removal-Installation (10 206 14): Procedures for removing and installing the Bosch injection pump, including timing and air bleeding.
- Injectors Removal-Installation (10 218 30): Steps for removing and installing the fuel injectors.
- Valve Clearance Adjustment (10 106 12): Instructions for adjusting valve clearances.
- Coolant Pump Overhaul (10 402 28): Detailed procedures for overhauling the coolant pump.
- Compression Test (10 001 30): Instructions for performing an engine compression test.
- Installing the Rear Cover with Seal, and Engine Flywheel: Detailed steps for installing the rear oil seal carrier, tightening retaining bolts to specified torque (24 Nm), and checking crankshaft flange coaxiality with a feeler gauge. The inner rear oil seal is installed using tool 50139. The flywheel is installed and tightened to 40 Nm (4.1 kgm), with each bolt further tightened by 60° using tool 380000304.
- Lubrication System of Normally Aspirated 3-Cylinder Engines: This system includes an oil filler cap (1), a filter safety valve (2) that opens when the oil pressure at the filter inlet exceeds the outlet pressure by 1.5-1.7 bar/cm² (140.355-159.068 psi/in²), a filter (3), a switch for low engine oil pressure warning (4), a dipstick (5), a pump (6), an oil pressure limiting valve (7), and a screen filter on the pick-up pipe (8).
- Cross-section of 4-cylinder model JX80, JX90 and JX95: An illustration showing the internal components of the 4-cylinder engine, highlighting counterweight retaining bolts (1).
Clutch System (Section 18)
This section details the clutch system, including general specifications, tightening torques, and required tools. It features cross-sectional views, clutch troubleshooting guides, and procedures for removal, installation, and overhaul.
- Minimum Permissible Dimensions After Refacing: Important specifications for clutch components after resurfacing.
- Adjustments: Instructions for adjusting the clutch, including the main and PTO clutch control linkage.
Gearbox (Section 21)
The gearbox section covers various transmission types, including Mechanical Transmission (12x4), Reverser (12x12), and Reverser and Creeper (20x12). Each subsection provides main data, tightening torques, tools, section views, description and operation, and fault diagnosis.
- Removal - Refitting: Procedures for removing and refitting the gearbox components.
- Transmission-Gearbox Casing Removal-Installation (21.118.10 - 12): Detailed steps for removing and installing the transmission-gearbox casing.
- Transmission-Gearbox Casing Disassembly-Overhaul (21.118.85): Comprehensive instructions for disassembling, overhauling, and reassembling the transmission-gearbox casing.
- Gearbox Driven Shaft End Float Adjustment: Procedures for adjusting the end float of the gearbox driven shaft.
- Differential Lock Engagement Sleeve Adjustment: Instructions for adjusting the differential lock engagement sleeve.
- Determining the Bevel Pinion Positioning Adjustment Ring: Steps to determine the correct adjustment ring for bevel pinion positioning.
- Adjusting the Taper Roller Bearings for the Bevel Pinion Shaft: Procedures for adjusting the taper roller bearings of the bevel pinion shaft.
- Adjusting the Bearings and Checking the Backlash: Instructions for adjusting bearings and checking backlash in the gearbox.
- Differential Pinion and Side Gear Backlash Adjustment: Procedures for adjusting backlash in the differential pinion and side gear.
Drive Lines (Section 23)
This section focuses on the drive lines, providing main specifications, torque settings, and tools. It includes cross-sectional views and procedures for disassembling and assembling various drive line components.
- Transmission Shafts and Guard (Disassembly - Assembly) (23 101 26): Instructions for disassembling and assembling transmission shafts and their guards.
- Drive Gear Housing (Removal - Installation) (23 101 40): Procedures for removing and installing the drive gear housing.
- Drive Gear Housing Removed (Disassembly - Assembly) (23 101 42): Steps for disassembling and assembling the drive gear housing once it has been removed.
Front Axle Mechanical Transmission (Section 25)
This section details the front axle mechanical transmission, including main data, tightening torques, tools, cross-sectional views, and description of operation.
- Complete Front Axle. Removal - Installation (25 100 30): Procedures for removing and installing the complete front axle.
- Front Axle. Removal - Installation (25 100 38): Further details on front axle removal and installation.
- Steering Knuckle Bearing Pins. Replacement (25 108 46-47): Instructions for replacing steering knuckle bearing pins.
- Stub Axle Adjustment: Procedures for adjusting the stub axle.
- Wheel Hub Bearing Adjustment: Instructions for adjusting wheel hub bearings.
- Bevel Drive Adjustment: Procedures for adjusting the bevel drive.
- Front Axle Differential. Overhaul (25 102 24): Comprehensive instructions for overhauling the front axle differential, including versions with LIM-SLIP (25 100 27) and NO SPIN (25 100 27).
- Leading Drive Wheels Toe-in Check (44 511 80): Procedures for checking the toe-in of the leading drive wheels.
Rear Axle and Transmission (Section 27)
This section covers the rear axle and transmission, providing main data, tightening torques, special tools, cross-sectional views, and description of operation and troubleshooting.
Power Take-Off (Section 31)
The power take-off (PTO) section includes main specifications, tools, torque settings, and sectional drawings. It describes the operation of the PTO and provides troubleshooting guides.
- Removal - Refitting: Procedures for removing and refitting the PTO.
- Bench Overhaul: Instructions for overhauling the PTO on a workbench.
Braking System (Section 33)
This section details the braking system, including main data, tightening torques, cross-sectional views, and description of operation.
- Tools - Troubleshooting: Information on tools required for brake maintenance and troubleshooting guides.
- Front Brake Assembly Mod. JX60 and JX70 Removal and Refitting - Overhauling on the Bench (33.206): Procedures for removing, refitting, and overhauling the front brake assembly for JX60 and JX70 models.
- Service Brake Removal and Refitting (33.202.60): Instructions for removing and refitting the service brake.
- Removal-Refitting of Front Brake Pumps (33.202.50): Procedures for removing and refitting the front brake pumps.
- Bleeding Air from the Front Braking System (33.202.40): Instructions for bleeding air from the front braking system.
- Adjusting Service Brake Pedals Travel (33.120.08): Procedures for adjusting the travel of the service brake pedals.
- Parking Brake Travel Adjustment (33.110.08): Instructions for adjusting the travel of the parking brake.
Hydraulic System (Section 35)
This section covers the hydraulic system, including the Rear Mechanical Hydraulic Lift, Open Centre System Auxiliary Control Valves, and Trailer Brake Auxiliary Control Valve.
- Rear Mechanical Hydraulic Lift: Main specification, tightening torques, tools, cross-sectional views, description & operation, hydraulic circuit, description and operation of lift phases, fault diagnosis, hydraulic lift - disassembly reassembly, hydraulic lift - bench overhaul, adjusting the lift, linkage adjustment, pressure relief valve - disassembly reassembly, pressure relief valve - setting, lift control valve - disassembly assembly and overhaul on bench, and lift pump.
- Open Centre System Auxiliary Control Valves: Main data - tools, auxiliary control valves - sectional views, description and operation, fault diagnosis, auxiliary control valves – assembly-disassembly, spool binding test, spool leakage test, and adjustment of the automatic detent release pressure.
- Trailer Brake Auxiliary Control Valve: Section views, hydraulic diagram, description and operation, description and operation of valve phases, and trailer brake auxiliary control valve linkage adjustment.
Steering (Section 41)
This section details the steering system, including principal data, tightening torques, section views, hydraulic diagram, operation, fault diagnosis, and tools.
- Hydrostatic Steering Control Valve - Removal-Installation (41 204 30): Procedures for removing and installing the hydrostatic steering control valve.
- Hydrostatic Steering Control Valve – Disassembly-Assembly (41 204 34): Instructions for disassembling and assembling the hydrostatic steering control valve.
- Hydrostatic Steering Control Valve - Bench Testing (41 204 38): Procedures for bench testing the hydrostatic steering control valve.
- Hydrostatic Steering Oil Pump - Disassembly-Assembly (41 204 38): Instructions for disassembling and assembling the hydrostatic steering oil pump.
- Steering Cylinder (Two-Wheel Drive Axle) – Removal-Refitting (41 216 20): Procedures for removing and refitting the steering cylinder for two-wheel drive axles.
- Steering Cylinder (Four Wheel Drive Axle) - Removal-Refitting (41 216 20): Procedures for removing and refitting the steering cylinder for four-wheel drive axles.
Front Axle and Wheels (Section 44)
This section provides information on the front axle and wheels, including principal data, sectional views, torque settings, equipment, and fault diagnosis.
- Removal-Refitting-Overhaul (44 101 30): Procedures for removing, refitting, and overhauling components related to the front axle and wheels.
- Wheel Hub Disassembly-Assembly (44 101 22): Instructions for disassembling and assembling the wheel hub.
- Stub Axle Overhaul (44 101 46): Procedures for overhauling the stub axle.
- Checking Wheel Alignment (44 101 80): Instructions for checking and adjusting wheel alignment.
Auxiliary Units (Section 50)
This section covers auxiliary units, primarily focusing on the cab's air conditioning system. It includes safety instructions, general characteristics, equipment, operating principles, fault diagnosis, cab controls, and usage information.
- Main Components of the Cab Air Conditioning System: Description of the key components.
- Refrigerant Recovery-Recycling and Evacuation-Charging Stations: Information on equipment and procedures for handling refrigerant.
- Drying Recharging and Checking Cooling (50 200 04): Procedures for drying, recharging, and checking the cooling performance of the AC system.
- Functional Testing of Air Conditioning System (50 200 03): Instructions for performing functional tests on the air conditioning system.
- Summary of the Cab Air-Conditioning System Charging Operations: Overview of the steps involved in charging the AC system.
- Checking for Refrigerant Leaks Using an Electronic Leak Detector: Procedures for detecting refrigerant leaks.
- Summary of Fault Diagnosis and Maintenance: Overview of troubleshooting and maintenance for the AC system.
- Air Conditioning and Heating Pipes - Replacement: Instructions for replacing AC and heating pipes.
- Receiver-Drier - Replacement (50 200 04-74): Procedures for replacing the receiver-drier.
- Condenser - Replacement (50 200 04-72): Instructions for replacing the condenser.
- Compressor - Removal-Refitting (50 200 04-26): Procedures for removing and refitting the AC compressor.
- Compressor Drive Belt Tension Adjustment (50 200 10): Instructions for adjusting the tension of the compressor drive belt.
Electrical System (Section 55)
This comprehensive section covers various aspects of the electrical system, divided into several chapters:
- Instruments (Chapter 1): Analogue instruments introduction, transmitter, and switch.
- Components (Chapter 2): Introduction and component description.
- Starting System (Chapter 3): Technical information, tightening torques, description and operation, starting circuit, system tests, removal and re-installation of starter motor, servicing, and bench tests.
- Charging System (Chapter 4): Technical information, tightening torques, description and operation, system testing and trouble-shooting, removal, re-installation and servicing.
- Charging Circuit Voltage Drop Tests: Instructions for performing insulated side voltage drop tests. This involves disconnecting the negative battery cable and B+ alternator wire, connecting a millivoltmeter (5) between the positive battery terminal clamp and D+ wire (3), and an ammeter (2) between the B+ alternator terminal and the D+ wire. A varying load resistance (4) is connected, and the engine is run at 2000 rev/min while decreasing resistance until the ammeter reads 45 or 65 A. The millivoltmeter reading should not exceed 400 millivolts. Readings above this indicate excessive resistance, while readings below 400 millivolts with insufficient power output suggest an alternator component malfunction.
- Battery (Chapter 5): Technical information, description and operation, removal and re-installation, battery checking and maintenance, charging the battery, and battery problems - frequent causes.
- Electrical Circuits (Chapter 6): Contents, fuses (all versions), symbols used in electrical circuits, electrical wire colour coding, ground locations, and electrical diagrams.
- General Diagrams (W/Cab and W/Out Cab): Detailed wiring diagrams for models with and without a cab.
- Analogue Instrument Circuit and Connector Overview: Diagrams and descriptions of the analogue instrument cluster wiring.
- Start-up Circuit and Connector Overview: Wiring diagrams for the engine start-up circuit.
- Direction Indicator & Hazard Warning Light Circuit and Connector Overview: Wiring diagrams for turn signals and hazard lights.
- Windscreen and Rear Window Wiper/Washer Circuit and Connector Overview: Wiring diagrams for the wiper and washer systems.
- Brake Light Circuit and Connector Overview: Wiring diagrams for the brake lights.
- Heating and Air-Conditioning System Circuit and Connector Overview: Wiring diagrams for the HVAC system.
- Work Lamp (Without Cab Circuit and Connector Overview): Wiring diagrams for work lamps on models without a cab.
- Side Lights, Main and Dipped Headlights, Parking Light Circuit and Connector Overview: Wiring diagrams for various lighting systems.
Bodywork and Driver Position (Section 90)
This section covers the bodywork and components related to the driver's position.
- Control Levers, Seat and Electrical Controls – Disassembly and Reassembly (90 160 42 - 43): Procedures for disassembling and reassembling control levers, the seat, and electrical controls.
- Rear Window, Handle and Lock - Disassembly and Reassembly (90 120 10): Instructions for disassembling and reassembling the rear window, its handle, and lock.
- Left-Hand Door Exterior Handle and Lock - Disassembly and Reassembly (90 156 52): Procedures for disassembling and reassembling the left-hand door's exterior handle and lock.
- Left-Hand Door - Disassembly and Reassembly (90 154 30): Instructions for disassembling and reassembling the entire left-hand door.
- Windscreen Wiper Motor - Disassembly and Reassembly (90 154 10): Procedures for disassembling and reassembling the windscreen wiper motor.
- Cab Windows - Replacement (90154 24, 90 156 10-14, 90 156 28): Instructions for replacing cab windows.
To Next Page
Need help?
General