Specifications, Service and Repair of Farm and Lawn Tractors

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International Harvester 633 Technical Specifications

International Harvester 633 Engine Data

Engine Model ................. International Harvester D-179
Engine Type ................. 4-stroke, 3-cylinder liquid-cooled diesel
Number of Cylinders ................. Three
Displacement, cu in (L) ................. 179 (2.90)
Engine Bore, in (mm) ................. 3.88 (98.0)
Engine Stroke, in (mm) ................. 5.06 (129.0)
Aspiration ................. Natural
Rated Engine Power, hp (kW) ................. 52.0 (38.8)
Rated Engine Speed, rpm ................. 2180
Maximum Torque, Nm (ft-lbs) ................. 190 (140)
Torque Speed, rpm ................. 1400
Compression ................. 15:1
Fuel System ................. Direct injection
Fuel Tank Capacity, gal (L) ................. 15.9 (60.0)
Coolant Capacity, qts (L) ................. 12.0 (11.4)
Electrical System Rating, Volts ................. 12
Charging System ................. Alternator

Power Take-Off

PTO Operational Type ................. Independent
PTO Horsepower, hp (kW) ................. 47.0 (35.0)
PTO Clutch ................. Dry disc
PTO Speeds, rpm ................. 540

International Harvester 633 Transmission

Transmission Type ................. Synchromesh
Gearbox Type ................. 8F/4R
Number of Forward Gears ................. 8
Number of Reverse Gears ................. 4
Clutch ................. Dry disc
Maximum Forward Speed, mph (kph) ................. 15.3 (24.7)
Maximum Reverse Speed, mph (kph) ................. 6.6 (10.6)

Transmission Type ................. Synchron
Gearbox Type ................. 16F/8R, 2-speed powershift
Number of Forward Gears ................. 16
Number of Reverse Gears ................. 8
Clutch ................. Dry disc
Maximum Forward Speed, mph (kph) ................. 15.3 (24.6)
Maximum Reverse Speed, mph (kph) ................. 8.9 (14.3)

IH 633 Wheels and Tires

Drive Wheels ................. 2WD/4WD
Steering Configuration ................. Front Steer
Steering System ................. Hydrostatic power
Brakes Type ................. Hydraulic wet disc
Front Tire Size (2WD) ................. 6.50-16
Rear Tire Size (2WD) ................. 12.4/11-36
Front Tire Size (4WD) ................. 10.5-20
Rear Tire Size (4WD) ................. 16.9/14-28
Front Tread, in (mm) ................. 48.5-69.7 (1230-1770)
Rear Tread, in (mm) ................. 56.2-76.9 (1420-1950)

International Harvester 633 Hydraulics and Hitch

Hydraulic System Type ................. Open Center
Implement Pump Flow, gpm (Lpm) ................. 8.6 (32.6)
Hydraulic Capacity, gal (L) ................. 3.2 (12.1)
Hydraulic Pressure, Bar (psi) ................. 172 (2500)
Number of Standard Remote Valves ................. 1/2
3-Point Hitch Category ................. 2
Standard Lift Capacity at lift pin, lb (kg) ................. 3970 (1800)

IH 633 Dimensions and Weight

Wheelbase (2WD), in (mm) ................. 81.5 (2070)
Wheelbase (4WD), in (mm) ................. 79.9 (2020)
Length, in (mm) ................. 135.8 (3440)
Height, in (mm) ................. 93.5 (2370)
Overall Width, in (mm) ................. 64.7 (1640)
Turning Radius, in (mm) ................. 158 (4000)
Weight (2WD), lb (kg) ................. 5160 (2340)
Weight (4WD), lb (kg) ................. 5590 (2535)

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INTERNATIONAL TRACTORS SPECIFICATIONS

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FARMALL TRACTORS SPECIFICATIONS

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