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McCormick GM50 Specifications
The McCormick GM50 compact utility tractor from GM Series was manufactured between 2011 and 2021. The McCormick GM-50 tractor is powered by Yanmar 4TNV88 4-cycle vertical 4-cylinder direct injection naturally aspirated liquid-cooled diesel engine. A 133.6 cubic inches (2.2 L) engine has a cylinder bore of 3.47" (88 mm), piston stroke of 3.54" (90 mm), and rated power of 44.5 Hp (33 kW).
This model is fitted with several transmission options: 12x12 reverse shuttle transmission and 16x16 reverse shuttle transmission with creeper. The open center hydraulic system has a gear pump with rated fluid flow of 7.5 gpm (28 lpm). The tractor is equipped with a hydrostatic power steering system, mechanical wet disc brakes, 280/70R16 front tyres, and 360/70R24 rear tyres. The operating weight is 3540 lbs (1610 kg).
| Engine Specs |
Engine Model .................... Yanmar 4TNV88
Engine Type .................... Four-cylinder 8-valve liquid-cooled diesel
Number of Cylinders .................... 4
Displacement, cu.in (L) .................... 133.6 (2.19)
Cylinder Bore, in (mm) .................... 3.47 (88.0)
Piston Stroke, in (mm) .................... 3.54 (90.0)
Aspiration Type .................... Naturally aspirated
Maximum Engine Power, hp (kW) .................... 47.5 (35.4)
Rated Engine Power, hp (kW) .................... 44.5 (33.0)
Rated Engine Speed, rpm .................... 2800
High Idle Speed, rpm .................... 3200
Maximum Torque, Nm (ft-lbs) .................... 141 (104)
Torque Speed, rpm .................... 1200
Compression Ratio .................... 19.0:1
Firing Order .................... 1-3-4-2
Fuel System .................... Direct injection
Fuel Injection Pump .................... Mechanical
Fuel Filter Type .................... Replaceable element
Lubrication System .................... Forced with trochoid pump
Cooling System .................... Liquid-cooled with radiator
Air Cleaner Type .................... Dry, replaceable dual element
Valve Clearance (Intake), in (mm) .................... 0.006-0.010 (0.15-0.25)
Valve Clearance (Exhaust), in (mm) .................... 0.010-0.014 (0.25-0.35)
Fuel Tank Capacity, gal (L) .................... 10.5 (40.0)
Engine Oil Capacity, qt (L) .................... 7.8 (7.4)
Cooling System Capacity, qt (L) .................... 6.8 (6.5)
Electrical System Rating, Volts .................... 12
Charging System .................... Alternator
Alternator Rating, Amps .................... 40
| Power Take Off |
PTO Operational Type .................... Independent
PTO Power, hp (kW) .................... 43.0 (32.0)
PTO Clutch .................... Dry plate
Rear PTO Speed, rpm .................... 540/750
Front PTO Speed, rpm .................... 1000
| Standard Transmission |
Transmission Type .................... Reverse Shuttle
Gearbox Type .................... 12F/12R
Number of Forward Gears .................... 12
Number of Reverse Gears .................... 12
Speed Ranges .................... 3
Clutch Type .................... Double dry clutch
Maximum Forward Speed, mph (kph) .................... 18.2 (29.0)
Maximum Reverse Speed, mph (kph) .................... 18.3 (29.3)
| Optional Transmission |
Transmission Type .................... Reverse Shuttle with Creeper
Gearbox Type .................... 16F/16R
Number of Forward Gears .................... 16
Number of Reverse Gears .................... 16
Clutch Type .................... Double dry clutch
Maximum Forward Speed, mph (kph) .................... 18.9 (30.3)
Maximum Reverse Speed, mph (kph) .................... 19.2 (30.7)
Forward Speed (Creeper), mph (kph) .................... 0.15-0.56 (0.25-0.89)
Reverse Speed (Creeper), mph (kph) .................... 0.16-0.57 (0.26-0.91)
| Wheels and Tires |
Wheel Drive System .................... 4WD 4x4
Steering Configuration .................... Front steer
Steering System .................... Hydrostatic power
Brakes Type .................... Mechanical wet disc
Front Tire Size .................... 280/70R16
Rear Tire Size .................... 360/70R24
Front Tread, in (mm) .................... 43.7-53.6 (1105-1355)
Rear Tread, in (mm) .................... 40.7-51.6 (1030-1305)
| Hydraulic System |
Hydraulic System Type .................... Open Center
Hydraulic Pump Type .................... Gear
Implement Pump Flow (Opt), gpm (Lpm) .................... 7.5 (28.0)
Steering Pump Flow, gpm (Lpm) .................... 4.9 (18.7)
Hydraulic Pressure, Bar (psi) .................... 180 (2600)
Steering Pressure, Bar (psi) .................... 110 (1600)
Number of Standard Remote Valves .................... 3
3-Point Hitch Category .................... 1
Draft Sensing or Lift Control .................... Position and draft control
Rear Lift Capacity at lift pin, lbs (kg) .................... 2640 (1200)
Front Lift Capacity at lift pin, lbs (kg) .................... 880 (400)
| Dimensions and Weight |
Wheelbase, in (mm) .................... 67.2 (1700)
Overall Length, in (mm) .................... 101.8 (2575)
Height (ROPS), in (mm) .................... 78 (1970)
Height (Cab), in (mm) .................... 84.5 (2140)
Overall Width, in (mm) .................... 65.5 (1655)
Ground Clearance, in (mm) .................... 16 (405)
Turning Radius, in (mm) .................... 138 (3500)
Weight (ROPS), lbs (kg) .................... 3035 (1380)
Weight (Cab), lbs (kg) .................... 3540 (1610)
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