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McCormick GX 40, 45, 50 Tractor Service Manual (incl. Wiring)

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$19.95 USD · one-time payment

Model: GX 40 | GX 45 | GX 50 | GX 40 - 45 - 50
Type: tractor
462 Pages·12 MB·Searchable PDF·English·Print-Ready
  • ✓ Wiring Diagrams
  • ✓ Hydraulic Schematics
  • ✓ Torque Specs
  • ✓ Bookmarks
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McCormick GX 40, GX 45, GX 50 longitudinal section diagram of engine showing drive shaft and camshaft.
McCormick GX 40, 45, 50 Tractor Service Manual (incl. Wiring)
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All 462 pages of this McCormick GX Service Manual (OEM #SM 8-30110 GB) focus on one job: rebuilding and diagnosing the GX 40, GX 45, and GX 50 tractors to factory spec. Inside: hydraulic schematics for the rear power lift and auxiliary control valves, complete wiring diagrams with colour codes and fuse locations, and a troubleshooting section covering engine, clutch, gearbox, differential, front axle, PTO, steering, and brakes. You also get page after page of torque tables with driving torque values for every fastener in every system, plus full overhaul procedures with step-by-step splitting and remounting instructions. Torque the high-pressure diesel pipe sleeve nut to 29.4–34.3 Nm; your auxiliary hydraulic pump should flow 28–36 l/min. No more cross-referencing three forums to find one spec. Bookmarked by system so you jump straight to the section you need. Download it and get back under the hood.

What's Inside This Manual

SystemPagesKey Topics
General Information6-30Safety Notes (Personal Risk, Avoid Accidents, Starting, Engine, Electrical Systems, Hydraulic Circuits, Wheels and Tyres, Splitting and Remounting Parts, Battery, Adjuster Shims, Spinning Shaft Seals, O-Ring Seals, Bearings, Spring Pins, Notes About Spare Parts, Specific Equipment)
Engine32-154General Features, Main Specifications, Driving Torques, Engine Troubleshooting, Overhaul
Clutch156-174General Specifications, Driving Torque Values, Troubleshooting, Splitting-Remounting, Control Adjustment
(12 + 12) and (16 + 16) Mechanical Gearbox176-206Main Specifications, Driving Torque Values, Troubleshooting, Splitting-Remounting, Overhaul
Rear Differential Axle208-232Main Specifications, Driving Torque Values, Troubleshooting, Overhaul, Bevel Gear Pair Adjustment
Front Axle234-268Main Specifications, Driving Torque Values, Troubleshooting, Overhaul, Axle Steering Cylinder
Power Take-Off270-280Main Specifications, Driving Torque Values, Troubleshooting, Overhaul, Assembly
Hydraulic Circuits - Rear Power Lift282-320Main Specifications, Operating Mode Description, Valve System Overhaul, Hydraulic Tests, Adjustments
Hydraulic Circuits – Auxiliary Control Valves322-326Main Specifications, Circuit Description, Auxiliary Control Valves Description
Steering System328-340Main Specifications, Description and Operation, Power Steering Circuit, Differential Locking, Operating Pressure Tests
Brakes342-352Main Specifications, Description and Operation, Brake System Troubleshooting, Splitting-Remounting, Adjustments
Electrical System - Instruments354-366Warning Light Identification, Instrument Panel, RPM Meter and Hour Counter, Fuel Level Gauge, Maintenance
Electrical System - Components368-376Control Panel, Light Switch, Ignition Switch, Controls, Maintenance
Electrical System - Ignition System378-386Technical Specifications, Description and Operation, Troubleshooting, Tests, Starter Motor Splitting-Remounting
Electrical System - Recharging System388-396Technical Specifications, Description of Alternator, Alternator Operation, Tests and Troubleshooting, Alternator Splitting-Remounting
Electrical System - Battery398-408Technical Specifications, Description and Operation, Splitting-Remounting, Maintenance and Inspection, Common Causes of Faults
Electrical System – Electrical Circuits410-462Electrical System Components, Tractor Component Locations, Fuses, Wiring Diagrams, Colour Codes

Quick Reference Specifications

SpecificationValuePage
All Models
Screws fixing 9”/9” clutch to the flywheel torque20 - 25 Nmp. 157
Fuel cleaning typePaper filter on injection pump deliveryp. 38
Fixing nut of high pressure diesel fuel pipe sleeve torque29.4 – 34.3 Nmp. 47
Maximum flow rate of hydraulic pump (for auxiliary control valves)28 - 36 l/minp. 323
Thermal switch activating temperature for replacement107 - 113°Cp. 94
Recommended operating pressure for hydraulic power lift and auxiliary control valves185 - 190 barp. 319
Cylinder Head Fixing Bolts Torque85.3 – 91.2 Nmp. 47
Clutch Fixing Screws Torque20 - 25 Nmp. 157
Rear Differential Bevel Gear Pair Ratio9/44 = 1:4.88p. 209
GX40, GX50
Engine Bore (GX40, GX50)88 mmp. 35
GX45
Engine Bore, GX4584 mmp. 36
GX45, GX50
Engine Oil Reservoir Capacity5.8 litersp. 37
BrandMcCormick
ModelGX 40, GX 45, GX 50, GX 40 - 45 - 50
Machine Typetractor
Manual TypeService Manual
LanguageEnglish
FormatSearchable PDF (Digital Download)
Pages462
File Size12 MB
Manual No.SM 8-30110 GB
Wiring DiagramsYes
Hydraulic SchematicsYes
Torque SpecificationsYes
Bookmarked / IndexedYes
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