Farmall
Farmall 1566
The Farmall 1566 is a row-crop tractor produced from 1974 to 1976 as part of the 66 Series by Farmall, a division of International Harvester. Built in Rock Island, Illinois, USA, a total of 7,417 units were made. It features a powerful 7.1L 6-cylinder turbocharged diesel engine producing 183 hp, coupled with a 12-speed two-speed power shift transmission with torque amplifier. The tractor offers two-wheel drive with planetary final drives, power steering, and hydraulic wet disc brakes. It has an open operator station with an optional air-conditioned cab. The hydraulic system is open center with optional front and rear valves. The rear PTO is independent with a 1000 RPM type. Dimensions include a 105-inch wheelbase, 168-inch length, and a width of 112 inches over axle ends. The tractor weighs between 13,200 and 15,195 pounds depending on configuration. It was originally priced at $26,250 in 1976.
Power183 hp
Founded1974 - 1976
Model1566
Technical Specifications
Detailed specifications and technical data for Farmall 1566
Power
| Engine | 183 hp (136.5 kW) |
|---|---|
| PTO (tested) | 161.01 hp (120.1 kW) |
| PTO (claimed) | 160 hp (119.3 kW) |
| Drawbar (tested) | 137.00 hp (102.2 kW) |
Engine
| Type | turbocharged diesel |
|---|---|
| Model | International Harvester DT-436 |
| Power | 183 hp (136.5 kW) |
| Cooling | liquid-cooled |
| Idle RPM | 900-2600 |
| Cylinders | 6-cylinder |
| Fuel tank | 42 gal (159.0 L), Optional 82 gal (310.4 L) |
| Rated RPM | 2600 |
| Bore/Stroke | 4.30x5.00 inches (109 x 127 mm) |
| Compression | 16:1 |
| Displacement | 436 ci (7.1 L) |
| Oil capacity | 20 qts (18.9 L) |
| Coolant capacity | 26 qts (24.6 L) |
Weight
| Shipping | 13200 lbs (5987 kg) |
|---|---|
| Ballasted | 18260 lbs (8282 kg) |
| Operating | 15195 lbs (6892 kg) |
Electrical
| Charging system | alternator |
|---|
Hydraulics
| Type | open center |
|---|---|
| Pump flow | 12 gpm (45.4 lpm) |
| Rear valves | 2 (Optional) |
| Front valves | 2 (Optional) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Hydraulic wet disc brakes |
| Final drives | planetary |
| Power steering | Yes |
| Operator station | Open operator station. Cab available with air-conditioning. |
Production
| Type | Row-Crop tractor |
|---|---|
| Series | 66 Series |
| Built in | Rock Island, Illinois, USA |
| Years made | 1974 - 1976 |
| Total built | 7,417 |
| Original price | $26,250 in 1976 |
Transmission
| Type | two-speed power shift |
|---|---|
| Gears | 12 forward and 6 reverse |
| Transmission | Torque Amplifier |
Tractor hitch
| Control | lower-link draft sensing |
|---|---|
| Rear Type | III/II |
Serial Numbers
| 1974 | 7101 |
|---|---|
| 1975 | 7837 |
| 1976 | 12589 |
| Location | Serial number plate on the left side of the clutch housing. |
Dimensions & Tires
| Width | 112 inches (284 cm) (Width over axle ends) |
|---|---|
| Length | 168 inches (426 cm) |
| Rear tire | 20.8-38 |
| Wheelbase | 105 inches (266 cm) |
| Front tire | 11L-15 |
| Rear tread | 66 to 120 inches (167 to 304 cm) |
| Front tread | 62 to 86 inches (157 to 218 cm) |
| Height (cab) | 117 inches (297 cm) |
| Height (exhaust) | 125 inches (317 cm) |
| Clearance (drawbar) | 17 inches (43 cm) |
| Front tread (optional) | 56 to 80 inches (142 to 203 cm) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Engine RPM | 1000@2300 |
| Rear PTO Type | 1000 |