All 67 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production
Manufacturer
Farmall (a part of International Harvester)
(no label)
Standard-tread tractor
(no label)
Built in Rock Island, Illinois, USA
(no label)
Original price was $10,700 in 1969
Engine
(no label)
International Harvester 6.7L 6-cyl diesel
Fuel tank
42 gal | 159.0 L
Transmission
(no label)
8-speed gear
(no label)
16-speed partial power shift
Power
PTO (claimed)
113 hp | 84.3 kW
Drawbar (tested)
102.03 hp | 76.1 kW
PTO (tested)
116.12 hp | 86.6 kW
Mechanical
(no label)
Two- or four-wheel drive
(no label)
Power steering
(no label)
Independent hydraulic dry disc brakes
(no label)
Open operator station. Two-post ROPS optional. Cab optional with heat and air-conditioning.
Hydraulics
Type
open center
Valves
1
Pump flow
8 gpm | 30.3 lpm
Hitch
Rear Type
III/II
Pto
Rear PTO
independent
Rear PTO Type
1000
Engine RPM
1000@2100
Dimensions
Wheelbase
105 inches (Farmall) | 266 cm
Wheelbase
92 inches (International) | 233 cm
Weight
9940 to 11030 pounds
Front tire
10.00-16
Rear tire
18.4-38 (Farmall)
Serial location
(no label)
Serial number place on the left side of the 1256, on the clutch housing.
Electrical
Charging system
alternator
Charging amps
55
Batteries
2
Battery volts
6
Battery AH
204
Engine
Engine detail
(no label)
International Harvester DT407
(no label)
turbocharged diesel
(no label)
6-cylinder
(no label)
liquid-cooled
Displacement
406.9 ci | 6.7 L
Bore/Stroke
4.321x4.625 inches | 110 x 117 mm
Air cleaner
dual dry elements
Compression
17:1
Rated RPM
2400
Starter volts
12
Oil capacity
15 qts | 14.2 L
Coolant capacity (Coolant)
24 qts | 22.7 L
Transmission
Transmission options
(no label)
8-speed gear
(no label)
16-speed partial power shift
Transmission
Type
gear
Gears
8 forward and 4 reverse
Oil capacity
68 qts | 64.4 L
(no label)
The 1256's transmission provides four gears (1-4) in high, low, and reverse ranges.
Transmission
Torque Amplifier
Type
partial power shift
Gears
16 forward and 8 reverse
Oil capacity
68 qts | 64.4 L
(no label)
Four gears (1-4) in two ranges (low/high) plus reverse range. The Torque Amplifier (TA) allows a clutchless shift from direct drive (DD) to the lower TA speed in all gears and ranges.