Allis Chalmers D21 Series I
Type: Row-crop Tractors
Contents:
Production | |
| Manufacturer: | Allis Chalmers |
| Type: | Row-Crop tractor |
| Factory: | West Allis, Wisconsin, USA |
| Total built: | 1,129 |
| Original price: | $5,700 (1964 ) |
| The D21 was the first Allis Chalmers tractor to have over 100 horsepower. The upgraded D21 II began at serial number 2201 in 1965. | |
Allis Chalmers D21 Power | |
| Drawbar (claimed): | 93 hp 69.4 kW |
| PTO (claimed): | 103 hp 76.8 kW |
| Plows: | 7 |
| Drawbar (tested): | 93.09 hp 69.4 kW |
| PTO (tested): | 103.06 hp 76.9 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| Steering: | power |
| Brakes: | band actuated disc |
| Cab: | Open operator station. |
| Transmission: | 8-speed sliding gear |
Tractor hitch | |
| Rear Type: | III/II |
Power Take-off (PTO) | |
| Rear PTO: | independent |
| Rear RPM: | 1000 |
D21 Serial Numbers | |
| Location: | Serial number on the left side of the Allis-Chalmers D21, stamped into the flange near the starter mounting. |
| 1963: | 100 |
| 1964: | 1417 |
| 1965: | 2079 |
| 1966: | 2408 |
| 1967: | 2863 |
| 1968: | 3777 |
| 1969: | 4498 |
Electrical | |
| Ground: | negative |
| Charging system: | Delco-Remy generator |
| Charging amps: | 32 |
| Batteries: | 2 |
| 4*Optional | |
| Battery volts: | 12 |
| Battery AH: | 95 |
Engine Detail | |
| Allis Chalmers 3400 | |
| diesel | |
| 6-cylinder | |
| liquid-cooled | |
| Displacement: | 426 ci 7.0 L |
| Bore/Stroke: | 4.25x5.00 inches 108 x 127 mm |
| Air cleaner: | dry |
| Compression: | 16.0:1 |
| Rated RPM: | 2200 |
| Firing order: | 1-5-3-6-2-4 |
| Coolant capacity: | 21 qts 19.9 L |
| Intake valve clearance: | 0.015 inches 0.381 mm *Hot |
| Exhaust valve clearance: | 0.015 inches 0.381 mm *Hot |
Transmission | |
| Transmission: | Power Director |
| Type: | sliding gear |
| Gears: | 8 forward and 2 reverse |
| Clutch: | dry disc |
| Oil capacity: | 68 qts 64.4 L *No PTO or hydraulics |
| 92 qts 87.1 L | |
| Transmission is controlled by means of a range control knob and a gear shift lever. The range knob is located below the steering wheel, pushing it forward puts the tractor in high range, pull it back engages low range. The gear shift selects one of four forward gears, or reverse. The tractor must be stopped and clutch used to change gears or range. | |
Dimensions | |
| Wheelbase: | 96.1 inches 244 cm |
| Length: | 160.6 inches 407 cm |
| Width: | 91.6 inches 232 cm |
| Shiping weight: | 9500 lbs 4309 kg |
| Ballasted weight: | 11700 lbs 5307 kg |
| Clearance (front axle): | 21.3 inches 54 cm |
| Clearance (rear axle): | 26.75 inches 67 cm |
