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International Harvester 685
The
International Harvester 685 is a 2-wheel drive or 4-wheel drive utility tractor
from 85 series. This model was manufactured between 1981 and 1985. The IH 685
tractor is powered by International Harvester D-239 four-cylinder direct
injection liquid-cooled diesel engine.
A 239 cubic inches (3.9 L) engine has a cylinder bore of 3.87" (98.4
mm), piston stroke of 5.06" (128.5 mm), and rated power of 71.8 hp (53.5
kW). The International Harvester 685 is fitted with two types of
transmission. Type 1: 8x4 synchromesh gear transmission.
Type 2: Torque Amplifier 2-speed power shift transmission with 16
forward and 8 reverse gears. The maximum forward speed - 19.1 mph (30.7
kph), max. reverse speed - 6 mph (9.7 kph). The open center hydraulic
system used a gear pump with a rated fluid flow of 12.4 gal/min (46.9
l/min). The main relief pressure is 2500 psi (172 bar). The 4WD models
are equipped with 10.0x16 front tires and 16.9x34 rear tires. The
12.4x24 front tires and 16.9x34 rear tires are used for 2WD tractors.
The wheelbase is 88.2 in (2240 mm).
Engine Model |
International Harvester D-239 |
Engine Type |
4-stroke, 4-cylinder liquid-cooled diesel |
Number of Cylinders |
4 |
Displacement, cu in (L) |
239 (3.92) |
Engine Bore, in (mm) |
3.87 (98.4) |
Engine Stroke, in (mm) |
5.06 (128.5) |
Aspiration |
Natural |
Rated Engine Power, hp (kW) |
71.8 (53.5) |
Rated Engine Speed, rpm |
2300 |
Maximum Torque, Nm (ft-lbs) |
244 (180) |
Torque Speed, rpm |
1600 |
Compression |
15:1 |
Fuel System |
Direct injection |
Fuel Tank Capacity, gal (L) |
29.6 (112.0) |
Electrical System Rating, Volts |
12 |
Charging System |
Alternator |
Alternator Rating, Amps |
55 |
PTO Operational Type |
Independent |
PTO Horsepower, hp (kW) |
63.3 (47.2) |
PTO Clutch Type |
Hydraulic wet disc |
PTO Speeds, rpm |
540 |
PTO / Engine Speeds, rpm |
540/1936 |
Transmission Type |
Synchromesh |
Gearbox Type |
8F/4R |
Number of Forward Gears |
8 |
Number of Reverse Gears |
4 |
Clutch Type |
Dry disc |
Oil Capacity, qts (L) |
36.0 (34.1) |
Maximum Forward Speed, mph (kph) |
19.1 (30.7) |
Maximum Reverse Speed, mph (kph) |
6.0 (9.7) |
Transmission Type |
Torque Amplifier |
Gearbox Type |
16F/8R, 2-speed powershift |
Number of Forward Gears |
16 |
Number of Reverse Gears |
8 |
Clutch Type |
Dry disc |
Maximum Forward Speed, mph (kph) |
19.1 (30.7) |
Maximum Reverse Speed, mph (kph) |
6.0 (9.7) |
Drive Wheels |
2WD/4WD |
Steering Configuration |
Front Steer |
Steering System |
Hydrostatic power |
Brakes Type |
Hydraulic wet disc |
Front Tire Size (2WD) |
10.0-16 |
Rear Tire Size (2WD) |
16.9-34 |
Front Tire Size (4WD) |
12.4-24 |
Rear Tire Size (4WD) |
16.9-34 |
Hydraulic System Type |
Open Center |
Implement Pump Flow, gpm (Lpm) |
12.4 (46.9) |
Hydraulic Capacity, gal (L) |
9.0 (34.1) |
Hydraulic Pressure, Bar (psi) |
172 (2500) |
Number of Standard Remote Valves |
1/2 |
3-Point Hitch Category |
2 |
Draft Sensing or Lift Control |
Position and draft control |
Standard Lift Capacity at lift pin, lb (kg) |
4400 (1995) |
Optional Lift Capacity at lift pin, lb (kg) |
5250 (2380) |
Wheelbase, in (mm) |
88.2 (2240) |
Length, in (mm) |
147.6 (3740) |
Height, in (mm) |
104 (2640) |
Overall Width, in (mm) |
76 (1920) |
Turning Radius, in (mm) |
150 (3800) |
Weight (2WD), lb (kg) |
6705 (3040) |
Weight (4WD), lb (kg) |
7190 (3260) |
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Farm Tractors Technical Specifications |