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McCormick GM50 Technical Data

McCormick GM50 Engine

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)
Engine Bore, in (mm) .................... 3.47 (88.0)
Engine Stroke, in (mm) .................... 3.54 (90.0)
Aspiration .................... Natural
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 .................... Replaceable element
Lubrication System .................... Forced with trochoid pump
Cooling System .................... Liquid-cooled with radiator
Air Cleaner .................... 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 Horsepower, hp (kW) .................... 43.0 (32.0)
PTO Clutch .................... Dry plate
Rear PTO Speed, rpm .................... 540/750
Front PTO Speed, rpm .................... 1000

McCormick GM50 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)

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

Drive Wheels .................... 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)

McCormick GM50 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, lb (kg) .................... 2640 (1200)
Front Lift Capacity at lift pin, lb (kg) .................... 880 (400)

Dimensions and Weight

Wheelbase, in (mm) .................... 67.2 (1700)
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), lb (kg) .................... 3035 (1380)
Weight (Cab), lb (kg) .................... 3540 (1610)