International Harvester 3688

International Harvester 3688The International Harvester 3688 is a 2WD/4WD row-crop tractor from the 30 series. This tractor was manufactured by International Harvester in Rock Island, Illinois, USA from 1981 to 1985. The International Harvester 3688 is equipped with a 7.1 L (436.0 cu·in) six-cylinder diesel engine and a partial power shift transmission with 16 forward and 8 reverse gears.

The IH 3688 row-crop tractor used the International Harvester D436 engine. It is a 7.1 L, 7,145 cm2, (436.0 cu·in) six-cylinder natural aspirated diesel engine with 109.0 mm (4.29 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 16.0:1. This engine produced 114.6 PS (84.3 kW; 113.0 HP) at 2,400 rpm of PTO output power.

The International Harvester 3688 is equipped with power steering, hydraulic wet disc brakes, cab (standard) with heat and A/C and 189.3 liters (50 US gal.; 41.6 Imp. gal) fuel tank.

International Harvester 3688 Specifications

General Specifications
Model International Harvester 3688
Length 4,670 mm (183.9 in)
Width 2,590 mm (102 in)
Height (cab) 2,840 mm (111.8 in)
Wheel base 2,660 mm (104.7 in)
Ground clearance 330 mm (13 in)
Weight (operating) 5,990 kg (13,206 lbs)
Fuel tank capacity 189.3 liters (50 US gal.; 41.6 Imp. gal)
Battery 12V
Cabin type Cab (standard) with heat and A/C
Engine
Engine model International Harvester D436
Engine type Four-stroke, liquid-cooled, inline
Cylinders 6
Fuel type Diesel
Displacement 7.1 L, 7,145 cm2, (436.0 cu·in)
Bore and stroke 109.0 mm X 127.0 mm (4.29 in X 5 in)
Compression ratio 16.0:1
Horsepower 114.6 PS (84.3 kW; 113.0 HP) at 2,400 rpm
Starter Electric
Oil capacity: 13.2 L (13.9 US. qt, 11.6 Imp. qt.)
Coolant capacity: 24.6 L (26 US. qt, 21.6 Imp. qt.)
Transmission and chassis
Chassis 4×2 2WD or 4×4 MFWD 4WD
Steering type Power
Brakes Hydraulic wet disc
Transmission model
Transmission type Partial power shift with cerametallic disc clutch
Gears 16 forward and 8 reverse
Speed Forward: 30.7 kmh (19.1 mph) Reverse: 15.1 kmh (9.4 mph)
Transmission oil capacity 85.2 L (22.5 US. gal, 18.7 Imp. gal.)
Tires
Front tires Ag: 11L-15
Rear tires Ag: 18.4-34
Three-Point Hitch
Category II
Control type Draft sensing
Lift capacity (at ends)
PTO (Power take-off shaft)
Rear PTO type Independent
Rear PTO speed 540/1000 rpm
Hydraulic system
Hydraulic type Open center
Hydraulic capacity 85.2 L (22.5 US. gal, 18.7 Imp. gal.)
Valves 2 to 4
Pump flow 18.0 gpm (68.1 lpm)
Steering flow 12.0 gpm (45.4 lpm)
Total flow 27.0 gpm (102.2 lpm)
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.

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