Factory Service Repair Manual For McCormick GX 40H, 45H, 50H Tractors. Tons of illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, inspection, repair, troubleshooting, tune-ups.
Format: PDF
Language: English
Pages: 474
Searchable: Yes
Number: SM 8-30140 GB (3665564M1)
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
McCormick
GX40H, GX45H, GX50H
Contents
- -GENERAL INFORMATION
SAFETY NOTES
Personal Risk
Avoid Accidents
General Rules
Starting
Engine
Electrical Systems
Hydraulic Circuits
Wheels And Tyres
Unhitching And Re Hitching
GENERAL INSTRUCTIONS
Battery
Adjuster Shims
Spinning Shaft Seals
“ORing” Seals
Bearings
Spring Pins
Notes About Spare Parts
Specific Equipment
SYMBOLS
Meaning And Use
DANGER SIGNS
Positions Of The Danger Decals – Weo Markets
Positions Of The Danger Decals – Nao Markets
SEALING AND FIXING SEALANTS
LUBRICANTS AND FUELS
CONVENTIONAL UNITS OF MEASUREMENT
Units Of Measurement (International System)
Conversion Values For Imperial Measurement System
STANDARD DRIVING TORQUE VALUES
Screws With Metric Threads
Nuts With Metric Threads - -ENGINE
GENERAL FEATURES
MAIN SPECIFICATIONS
DRIVING TORQUE VALUES
SPECIFIC EQUIPMENT
SECTIONS
LUBRICATION, COOLING AND FUELLING CIRCUIT DIAGRAMS
ENGINE TROUBLESHOOTING
ENGINE SPLITTING AND REMOUNTING
Splitting
Remounting
–COMPRESSION TEST
Compression degree
Measuring procedure
ENGINE OVERHAUL
Demounting
Assembly Of Tappets And Drive Shaft With Main Bearing Caps, Bearings And Bearing Rings
Assembly Of Pistons Complete With Spring Rings, Pins, Connecting Rods, Caps And Bearings
Assembly Of Timing, Lubrication, Starting, Recharging, Cooling And Fuelling Components
Valve Play Adjustment
How To Check The Belt Tension
INJECTOR NOZZLE AND INJECTION PRESSURE MEASURING AND MONITORING
Injection Pressure Measurement
Jet Inspection
Atomizer Valve Sliding Test
Identification Number Of The Atomizer Casing
INJECTION TIMING ADJUSTMENT AND MONITORING
IDLING RATE ADJUSTMENT (MINIMUM AND MAXIMUM)
HOW TO CHECK THE COOLING SYSTEM AND RADIATOR TO FIND LEAKS
SENSOR INSPECTION
Thermostat
Thermal Switch
Hydraulic Switch
–CYLINDER HEAD INSPECTIONS, MEASUREMENTS AND REPAIRS
Warping And Inspection Of The Combustion Surfaces
Valve Impression
Valve Housing Width And Angle
Valve Housing Intervention Procedure
Grinding And Milling Tool Use Procedure
Valve Housing Removal
Valve Housing Insertion
Valve Stem Wear And Warping
Valve Stem And Valve Guide
Valve Head Thickness
Valve Guide Replacement
Valve Stem Seal
Valve Spring Inspection
Spring Cap And Cotter Inspection
CRANKCASE AND CYLINDER LINER INSPECTIONS, MEASUREMENTS AND REPAIRS
Crankcase Inspection
Measurement Of Cylinder Liner Bore And Warping
Lapping
ROCKER ARM INSPECTIONS, MEASUREMENTS AND REPAIRS
Measurement Of The Outer Diameter Of The Rocker Arm Pin And Inner Diameter Of The Rocker Arm
Tappet Rod Curve Inspection, Measurement Of The Outer Diameter Of The Tappets And Inspection Of The Contacting Surfaces
Other Inspections
PISTON AND PISTON RING INSPECTIONS, MEASUREMENTS AND REPAIRS
Piston Inspection
Measurement Of The Outer Piston Diameter
Shape Of The Piston Rings
Measurement Of The Groove Width Of The Spring Ring, The Spring Ring And The Distance Between Ends
Spring Ring Assembly
Measurement Of The Outer Diameter Of The Pin And Relative Hole
CONNECTION ROD INSPECTIONS, MEASUREMENTS AND REPAIRS
Visual Inspection
Twist And Parallelism Measurement
Measurement Of The Bush And Connecting Rod Pin Play
Measure The Play Between The Pin Bush And The Pin Itself
Checking The Connecting Rod Pin Bearing Contact
Mounting The Piston And Connecting Rod
Connecting Rod Side Play
CAMSHAFT INSPECTIONS, MEASUREMENTS AND REPAIRS
Camshaft Float
Visual Inspection Of The Camshaft
Camshaft Incurvation Measurement
Intake/Exhaust Cam Height Measurement
Measurement Of The Play Between The Camshaft Pins And Their Relative Bushes
DRIVE SHAFT INSPECTIONS, MEASUREMENTS AND REPAIRS
Drive Shaft Float
Checking The Colour Of The Drive Shaft
Bearing Inspection
Drive Shaft Incurvation
Measurement Of The Connecting Rod Pin And Main Bearing
Precautions For Bearing Assembly
GEAR INSPECTIONS, MEASUREMENTS AND REPAIRS
Gear Inspections
Play Measurement
Checking And Measuring The Intermediate Gear Shaft And The Gear Itself
Gear Train
OIL PUMP INSPECTIONS, MEASUREMENTS AND REPAIRS
Play Between The External Rotor And Pump Casing
Play Between Inner And Outer Rotor
Float Between The Pump Casing And The Inner And Outer Rotor
Play Between The Rotor Shaft And Housing Hole
Miscellaneous
YANMAR INJECTION PUMP
How To Bleed Air From The Fuel Circuit
INJECTION PUMP OVERHAUL
Demounting
Assembly
Plunger Inspection
Delivery Valve Inspection
Plunger Guide, Plunger Cylinder Inspection
Camshaft And Bearing Inspection
Fuel Regulating Pinion And Rack Inspection
REGULATOR UNIT OVERHAUL
Demounting
Assembly
Checking The Centrifugal Weights Of The Regulator
Regulator Sleeve Inspection
Regulator Lever Shaft Assembly Inspection
Spring Inspection
Checking The Torque Adjuster Spring Assembly
Checking The Torsion Spring Assembly - -TRANSMISSION/ENGINE COUPLING
GENERAL SPECIFICATIONS OF THE ENGINE COUPLING
DRIVING TORQUE VALUES
SECTIONS
ENGINE COUPLING TROUBLESHOOTING
WHERE THE SEALANT IS APPLIED FOR THE ENGINE COUPLING
ENGINE
ENGINE COUPLING, SPLITTING-REMOUNTING
Splitting
Remounting - -HYDROSTATIC GEARBOX
MAIN SPECIFICATIONS OF THE GEARBOX AND FINAL DRIVE
MAIN SPECIFICATIONS OF THE RANGE REDUCTION UNIT
DRIVING TORQUE VALUES
SPECIFIC EQUIPMENT
SECTIONS
DESCRIPTION OF HYDROSTATIC CIRCUITS OF TRANSMISSION – STEERING TO
OPERATION OF HYDROSTATIC CIRCUITS OF TRANSMISSION – STEERING
POWER TAKE OFF
TROUBLESHOOTING FOR THE GEARBOX
WHERE THE SEALANT IS APPLIED FOR THE ENGINE COUPLING HOUSING AND
HYDROSTATIC TRANSMISSION
WHERE THE SEALANT IS APPLIED FOR THE HYDROSTATIC TRANSMISSION HOUSING AND
RANGE REDUCTION UNIT HOUSING
HYDROSTATIC TRANSMISSION HOUSINGSPLITTINGREMOUNTING
Splitting
Remounting
HYDROSTATIC TRANSMISSION HOUSINGOVERHAUL
Demounting
Assembly
PTO HYDRAULIC CLUTCHOVERHAUL
Demounting
Assembly
PTO NOSPIN BRAKE OVERHAUL
Demounting
Assembly
RANGE REDUCTION UNIT HOUSINGSPLITTINGREMOUNTING
Splitting
Remounting
RANGE REDUCTION UNIT HOUSINGOVERHAUL
Demounting
Assembly
HYDROSTATIC UNITSPLITTINGREMOUNTING
Splitting
Remounting - -REAR DIFFERENTIAL HOUSING
MAIN SPECIFICATIONS OF THE BEVEL GEAR PAIR AND DIFFERENTIAL
DRIVING TORQUE VALUES
SECTIONS
DESCRIPTION AND OPERATION
TROUBLESHOOTING FOR THE BEVEL GEAR PAIR AND DIFFERENTIAL
TROUBLESHOOTING FOR THE SIDE FINAL DRIVES
WHERE THE SEALANT IS APPLIED FOR THE GEARBOXREAR TRANSMISSION HOUSING
REAR TRANSMISSION HOUSINGOVERHAUL
Demounting
Assembly
RIGHT OR LEFT SIDE FINAL DRIVE HOUSING ASSEMBLY SPLITTING REMOUNTING
Splitting
Remounting
DRIVING WHEEL SHAFTOVERHAUL
Demounting
Assembly
BEVEL GEAR PAIR ADJUSTMENT - -FRONT AXLE
MAIN SPECIFICATIONS
DRIVING TORQUE VALUES
SPECIFIC EQUIPMENT
SECTIONS
DESCRIPTION AND OPERATION
Axle assembly
Differential lock
TROUBLESHOOTING FOR THE FRONT AXLE DIFF LOCK DEVICE
FRONT AXLE
Splitting
Remounting
FRONT AXLE DIFFERENTIAL AND BEVEL GEAR PAIR SUPPORT
Splitting
Remounting
FRONT BEVEL GEAR PAIROVERHAUL
Demounting
Bevel Pinion Bearing Preload
Adjustment Of The Axial Position Of The Bevel Pinion
Pinion – Ring Gear Play Adjustment
Ring Gear Bearing Float Adjustment
Front Diff LockOverhaul
Demounting
Assembly
WHEEL HUBOVERHAUL
Demounting
Assembly
FRONT FINAL DRIVE – SPLITTING REMOUNTING
Splitting
Remounting
FRONT FINAL DRIVEOVERHAUL
Demounting
Assembly
AXLE STEERING CYLINDER – SPLITTING REMOUNTING
Splitting
Remounting - -POWER TAKE-OFF
MAIN SPECIFICATIONS
DRIVING TORQUE VALUES
SECTIONS
DESCRIPTION AND OPERATION
Power TakeOff Controlled Directly By The Main Clutch
Power TakeOff Synchronized With The Gearbox
TROUBLESHOOTING FOR THE POWER TAKEOFF
WHERE THE SEALANT IS APPLIED ON THE POWER TAKEOFF COVER
POWER TAKEOFF OVERHAUL
Demounting
Assembly - -HYDRAULIC CIRCUITS – REAR POWER LIFT
MAIN SPECIFICATIONS – REAR HYDRAULIC POWER LIFT
SPECIFIC EQUIPMENT
SECTIONS AND PERSPECTIVE VIEWS
DESCRIPTION OF THE OPERATING MODE OF THE HYDRAULIC POWER LIFT
Position Control
Draft Control
Mixed Position And Draft Control
Floating Position
DESCRIPTION OF THE OPERATING MODE OF THE HYDRAULIC POWER LIFT’S VALVE SYSTEM
Neutral Phase
Lifting Phase
Discharge Phase
POWER LIFT’S VALVE SYSTEM OVERHAUL
Demounting
Assembly
VALVE SYSTEM OF THE HYDRAULIC POWER LIFT – HYDRAULIC TESTS
Check For Leaks From The Discharge Valve
Checking And Adjusting The Cylinder Safety Valve
Nonreturn Valve Test
Overpressure Valve Setting Test
POWER LIFT – ADJUSTMENTS
Sensitivity Adjustment
Draft Control Adjustment
Position Control Adjustment
HYDRAULIC POWER LIFT – OPERATING PRESSURE TEST
Checking The Valve Pressure Setting For The Auxiliary Control Valves - -HYDRAULIC CIRCUITS – AUXILIARY CONTROL VALVES
MAIN SPECIFICATIONS
DESCRIPTION AND OPERATION
Description Of The Circuit
Description Of The Auxiliary Control Valves - -STEERING SYSTEM
MAIN SPECIFICATIONS
SECTIONS AND EXPLODED VIEWS
DESCRIPTION AND OPERATION
Differential Locking And Unlocking - -BRAKES
MAIN SPECIFICATIONS
DRIVING TORQUE VALUES
SECTIONS
DESCRIPTION AND OPERATION
Main Brakes
Parking Brake
BRAKE SYSTEM TROUBLESHOOTING
WHERE THE SEALANT IS APPLIED ON THE BRAKE ASSEMBLY AND SIDE FINAL DRIVES ON THE TRANSMISSION HOUSING
RIGHT OR LEFT BRAKE SPLITTINGREMOUNTING
Splitting
Remounting
ADJUSTMENTS
Adjustment Of The Right And Left Brakes
Parking Brake Hand Lever Travel Adjustment - -ELECTRICAL SYSTEM – INSTRUMENTS
INSTRUMENTS
Warning Light Identification
Instrument Panel
Wiring Diagram Of Indicator Light Panel Interior
Indicator Lights
Rpm Meter And Hour Counter
Fuel Level Gauge
Engine Coolant Temperature Indicator
TRANSMITTERS, SENSORS AND SWITCHES
MAINTENANCE
Warning Light Replacement - -ELECTRICAL SYSTEM – COMPONENTS
CONTROL PANEL WITH ANALOGUE INSTRUMENT
LIGHT SWITCH
Turn Indicators
Driving Beam Blinking Function
Side Lights
Driving/Dipped Beams
Horn
HAZARD LIGHT SWITCH
ROTATING BEACON SWITCH
IGNITION SWITCH
CRUISE CONTROL SELECTOR
CONTROLS ON THE RIGHTHAND SIDE
DIFF LOCK CONTROL BUTTON
ELECTROHYDRAULIC PTO CLUTCH CONTROL SWITCH
CONTROLS ON THE LEFTHAND SIDE
MAINTENANCE
Headlight Bulbs Replacement
Bulbs In Front Side Lights And Turn Indicators Replacement
Rear Field Light Bulb Replacement
Bulbs In Rear Side Lights, Brake Lights And Turn Indicators Replacement
License Plate Light Bulb Replacement - -ELECTRICAL SYSTEM – IGNITION SYSTEM
TECHNICAL SPECIFICATIONS
DESCRIPTION AND OPERATION
TROUBLESHOOTING
TESTS
Ignition System Test On The Tractor
Power Draw In The Starter Motor Circuit
Resistance In The Ignition System Circuit (Voltage Drop)
Positive Battery Cable
Ground Connection Of The Starter Motor
Battery Ground Cable
STARTER MOTOR SPLITTINGREMOUNTING - -ELECTRICAL SYSTEM – RECHARGING SYSTEM
TECHNICAL SPECIFICATIONS
DESCRIPTION AND OPERATION
Description Of The Alternator
Alternator Operation
TESTS AND TROUBLESHOOTING
Precautions To Take During The Operation
Preliminary Inspections
Initial Tests
Alternator Connection Test
Charge Current And Regulated Voltage Tests
Alternator Component Tests
ALTERNATOR SPLITTINGREMOUNTING - -ELECTRICAL SYSTEM-BATTERY
TECHNICAL SPECIFICATIONS
DESCRIPTION AND OPERATION
BATTERY SPLITTINGREMOUNTING
Splitting
Remounting
MAINTENANCE AND BATTERY INSPECTION
Relative Density
Maintenance
Batteries Charged Dry
Battery Charging
Charging Very Discharged Batteries
Tests
COMMON CAUSES OF BATTERY FAULTS - -ELECTRICAL SYSTEM – ELECTRICAL CIRCUITS
Electrical System Components
Electrical System Components (Continued)
Tractor – Component Locations
Control Panel – Component Locations
Locations Of Fuses And Relays
Fuse Box
Fuse Box Location
Fuses
Maxi Fuses
Hazard Lights And Turn Indicator Blinkers – Nao Plant (North American Markets)
Power Socket – SevenPin Connection
Symbols Used In The Electrical Circuits
Colour Codes Of The Electrical Wires
Identification Code Of The Wiring Diagrams And Connections
Main Wiring And Wiring Diagrams
Main Wiring
Main Front Wiring (Diagram Of Engine And Lights)
Starting And Recharging Diagram (Diagram A)
Hydrostatic System Wiring
Operator Safety And Hydrostatic Plant Diagram (Diagram B/)
Operator Safety And Hydrostatic Plant Diagram (Diagram B/)
Diagram Of Side Lights, Driving Beams, Dipped Beams, License Plate Light And Instrument Lighting (Diagram C)
Diagram Of Hazard Lights And Turn Indicator Blinkers – Horn (Diagram D)
Main Rear Wiring
Diagram Of Brake Lights – Field Light – Rotating BeaconDifferential Lock (Diagram E)
Diagram Of Sensors And Transmitters (Diagram F)
Diagram Of Pin Socket, Power Socket (Diagram G)
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