Production
| Description | Row-Crop tractor / Built in Rock Island, Illinois, USA / Original price was $26,250 in 1976 |
|---|---|
| Manufacturer | Farmall (a part of International Harvester) |
| Total built | 7,417 |
Engine
| Engine type | International Harvester 7.1L 6-cyl diesel |
|---|---|
| Fuel tank | 42 gal (159.0 L) |
| Bore/Stroke | 4.30x5.00 inches (109 x 127 mm) |
| Compression | 16:1 |
| Coolant capacity | 26 qts (24.6 L) |
| Description | International Harvester DT-436 / turbocharged diesel / 6-cylinder / liquid-cooled |
| Displacement | 436 ci (7.1 L) |
| Idle RPM | 900-2600 |
| Oil capacity | 20 qts (18.9 L) |
| Power | 183 hp (136.5 kW) |
| Rated RPM | 2600 |
| Drawbar (tested) | 137.00 hp (102.2 kW) |
| PTO (claimed) | 160 hp (119.3 kW) |
| PTO (tested) | 161.01 hp (120.1 kW) |
Transmission
| Gears | 12 forward and 6 reverse |
|---|---|
| Transmission | Torque Amplifier |
| Transmission type | 12-speed two-speed power shift |
| Type | two-speed power shift |
Mechanical
| Cab | Open operator station. Cab available with air-conditioning. |
|---|---|
| Description | Power steering / Hydraulic wet disc brakes |
| Drive type | Two-wheel drive |
| Final drives | planetary |
Hydraulics
| Front valves | 2 OptOptional |
|---|---|
| Pump flow | 12 gpm (45.4 lpm) |
| Rear valves | 2 OptOptional |
| Type | open center |
Hitch
| Control | lower-link draft sensing |
|---|---|
| Rear Type | III/II |
PTO
| Engine RPM | 1000@2300 |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 1000 |
Electrical
| Charging system | alternator |
|---|
Dimensions & Tires
| Clearance (drawbar) | 17 inches (43 cm) |
|---|---|
| Front tread | 62 to 86 inches (157 to 218 cm) / 56 to 80 inches (optional) (142 to 203 cm) |
| Height (cab) | 117 inches (297 cm) |
| Height (exhaust) | 125 inches (317 cm) |
| Length | 168 inches (426 cm) |
| Rear tread | 66 to 120 inches (167 to 304 cm) |
| Wheelbase | 105 inches (266 cm) |
| Width | 112 inches*Width over axle ends. (284 cm) |
| Front tire | 11L-15 |
| Rear tire | 20.8-38 |
| Weight | 13200 to 15195 pounds |
| Wheelbase | 105 inches (266 cm) |
| Ag front | 11L-15 |
| Ag rear | 20.8-38 |
1566 Serial Numbers
| 1974 | 7101 |
|---|---|
| 1975 | 7837 |
| 1976 | 12589 |
| Description | FAQ: How to read a serial number table. |
| Location: | Serial number plate on the left side of the clutch housing. |
Farmall 1566 Weight
| Ballasted | 18260 lbs (8282 kg) |
|---|---|
| Operating | 15195 lbs (6892 kg) |
| Shipping | 13200 lbs (5987 kg) |
Nebraska Tractor Test 1174
| Description | Diesel Torque Amplifier 2WDMay 3 - 15, 1975Link: Nebraska Tractor Test 1174 file / PTO performance / Drawbar performance |
|---|---|
| Fuel use | 11.1 gal/hour (42.0 l/hour) / 10.0 gal/hour (37.9 l/hour) / 10.9 gal/hour (41.3 l/hour) |
| Max power | 137.00 hp (102.2 kW) |
| Max pull | 15774 lbs (7155 kg) |
| Power at rated engine speed | 161.01 hp (120.1 kW) |
| Power at rated PTO speed | 162.31 hp (121.0 kW) |
Speeds
| Description | With 20.8-38 rear tires. |
|---|