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| info | |
| 1978 - 1981 30 2+2 Series, Four-wheel Drive (4WD) tractor | |
| Next model: | International Harvester 6388 |
| Series next: | International Harvester 3588 |
| Production | |
| Manufacturer: | International Harvester |
| Total built: | 2,146 |
| Original price (USD), $45,680 (1981 ), | |
| Capacity | |
| Fuel: | 90 gal [340.7 L] |
| 3-Point Hitch | |
| Rear Type: | III |
| Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 540/1000 |
| Dimensions & Tires | |
| Wheelbase: | 110 inches [279 cm] |
| Weight: | 17420 to 17850 pounds |
| Front tire: | 16.9-38 |
| Rear tire: | 16.9-38 |
| 3388 Serial Numbers | |
| Location: | On the rear tractor frame, right side, near axle. |
| International Harvester 3388 Power | |
| Drawbar (tested): | 111.75 hp [83.3 kW] |
| PTO (tested): | 130.61 hp [97.4 kW] |
| Mechanical | |
| Chassis: | 4x4 articulated 4WD |
| Steering: | hydrostatic power |
| Brakes: | hydraulic wet disc |
| Cab: | Cab standard |
| Hydraulics | |
| Type: | closed center |
| Valves: | 2 |
| Pump flow: | 12 gpm [45.4 lpm] |
| Electrical | |
| Ground: | negative |
| Battery | |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 4.30x5.00 inches [109 x 127 mm] |
| Air cleaner: | dual paper elements |
| Rated RPM: | 2400 |
| Starter volts: | 12 |
| Coolant capacity: | 34 qts [32.2 L] |
| Engine Detail | |
| International Harvester DT436, turbocharged diesel, 6-cylinder, liquid-cooled, 436 ci [7.1 L] |
| info | |
| Next model: | International Harvester 6388 |
| Series next: | International Harvester 3588 |
| Transmission | |
| Type: | partial power shift |
| Gears: | 16 forward and 8 reverse |
| Four gears (1-4) in two ranges (low-high) with two-range power shift between direct-drive and Torque Amplifier. | |
| info | |
| Next model: | International Harvester 6388 |
| Series next: | International Harvester 3588 |
| Dimensions | |
| Weight (operating): | 17,420 lbs [7901 kg] |
| Weight (ballasted): | 17,850 lbs [8096 kg] |
| Wheelbase: | 110 inches [279 cm] |
| International Harvester 3388 Tires | |
| Ag front: | 16.9-38 |
| Ag rear: | 16.9-38 |