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International Harvester 684
The
International Harvester 684 is a 2WD or 4WD utility tractor. This model was
manufactured from 1977 to 1984. The IH 684 tractor is powered by 238.7 cu.in
(3.9L) International Harvester D-239 four-cylinder direct injection
liquid-cooled diesel engine with a rated power of 69 Hp (51.5 kW) at 2400 rpm.
The IH 684 is fitted with 2 types of transmission. Type 1: synchromesh
transmission with 8 forward and 4 reverse gears. Type 2: Torque
Amplifier 2-speed powershift transmission with 16 forward and 8 reverse
gears. The maximum travel speed (forward/reverse): 18.9 mph (30.3 km/h)
and 5.9 mph (9.5 km/h).
The open center hydraulic system used a gear pump with fluid flow rate
of 13 gpm (49.2 lpm) or 15.4 gpm (58.3 lpm). The hydraulic fluid
capacity is 9 gal (34.1 L). The International Harvester 684 was equipped
with a hydrostatic power steering, independent hydraulic wet disc
brakes, 7.50x16 front tires, and 16.9x30 rear tires. The wheelbase is
88" (2230 mm) for 2WD models, 85.2" (2160 mm) for 4WD models, and 84.5"
(2140 mm) for row-crop models.
| Engine Model |
International Harvester D-239 |
| Engine Type |
4-stroke, 4-cylinder liquid-cooled diesel |
| Number of Cylinders |
4 |
| Displacement, cu in (L) |
238.7 (3.92) |
| Engine Bore, in (mm) |
3.87 (98.0) |
| Engine Stroke, in (mm) |
5.06 (129.0) |
| Aspiration |
Natural |
| Rated Engine Power, hp (kW) |
69.0 (51.5) |
| Rated Engine Speed, rpm |
2400 |
| Compression |
15:1 |
| Fuel System |
Direct injection |
| Air Cleaner |
Dry |
| Fuel Tank Capacity, gal (L) |
20.0 (75.7) |
| Oil Capacity, qts (L) |
8.8 (8.3) |
| Coolant Capacity, qts (L) |
14.4 (13.6) |
| Electrical System Rating, Volts |
12 |
| Charging System |
Alternator |
| Alternator Rating, Amps |
33 |
| PTO Operational Type |
Independent |
| PTO Horsepower, hp (kW) |
62.5 (46.6) |
| PTO Clutch Type |
Hydraulic |
| PTO Speeds, rpm |
540 |
| 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) |
18.9 (30.3) |
| Maximum Reverse Speed, mph (kph) |
5.9 (9.5) |
| 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 |
| Oil Capacity, qts (L) |
36.0 (34.1) |
| Maximum Forward Speed, mph (kph) |
18.9 (30.3) |
| Maximum Reverse Speed, mph (kph) |
5.9 (9.5) |
| Drive Wheels |
2WD/4WD |
| Steering Configuration |
Front Steer |
| Steering System |
Hydrostatic power |
| Brakes Type |
Independent hydraulic wet disc |
| Front Tire Size |
7.50-16 |
| Rear Tire Size |
16.9-30 |
| Hydraulic System Type |
Open Center |
| Implement Pump Flow (Std), gpm (Lpm) |
13.0 (49.2) |
| Implement Pump Flow (Opt), gpm (Lpm) |
15.4 (58.3) |
| Hydraulic Capacity, gal (L) |
9.0 (34.1) |
| 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) |
3600 (1635) |
| Wheelbase (2WD), in (mm) |
88 (2230) |
| Wheelbase (Row-Crop), in (mm) |
84.5 (2140) |
| Wheelbase (4WD), in (mm) |
85.2 (2160) |
| Length (Standard), in (mm) |
142 (3600) |
| Length (Row-Crop), in (mm) |
139 (3530) |
| Length (4WD), in (mm) |
147.2 (3730) |
| Height (Steering Wheel), in (mm) |
63 (1600) |
| Overall Width, in (mm) |
74 (1870) |
| Ground Clearance, in (mm) |
17.8 (450) |
| Weight (2WD), lb (kg) |
5720 (2595) |
| Weight (Row-Crop), lb (kg) |
5970 (2705) |
| Weight (4WD), lb (kg) |
6765 (3070) |
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| Farm Tractors Technical Specifications |
