John Deere R Specs ( 1949-1954 )
Production
| Description | Standard-tread tractor / Built in Waterloo, Iowa, USA / Original price was $3,650 in 1954 / The model R was John Deere's first diesel tractor. The R was the first John Deere tractor with a live PTO, which used a separate clutch. |
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| Manufacturer | John Deere |
| Total built | 21,293 |
Engine
| Aux. fuel | 1 gal (3.8 L) |
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| Engine type | John Deere 6.8L 2-cyl diesel |
| Fuel tank | 22 gal (83.3 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 5.75x8.00 inches (146 x 203 mm) |
| Compression | 16:1 |
| Coolant capacity | 54.5 qts (51.6 L) |
| Description | John Deere / diesel / 2-cylinder / liquid-cooled |
| Displacement | 415.5 ci (6.8 L) |
| Firing order | 1-2 |
| Rated RPM | 1000 |
| Starter type | 2-cylinder pony motor |
| Oil capacity | 13 qts (12.3 L) |
| Belt (claimed) | 43 hp (32.1 kW) |
| Belt (tested) | 48.58 hp (36.2 kW) |
| Drawbar (claimed) | 35 hp (26.1 kW) |
| Drawbar (tested) | 43.15 hp (32.2 kW) |
| Plows | 4 (14-inch) |
Transmission
| Clutch | dry disc |
|---|---|
| Description | The tractor must be stopped and clutch used to shift gears. |
| Gears | 5 forward and 1 reverse |
| Oil capacity | 9.5 qts (9.0 L) |
| Oil type | SAE 90 |
| Transmission type | 5-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Mechanical drum brakes |
| Drive type | Two-wheel drive |
PTO
| Rear PTO | live |
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| Rear PTO Type | 540 |
Electrical
| Battery volts | 6 |
|---|---|
| Ground | positive |
Dimensions & Tires
| Height | 78.125 inches (198 cm) |
|---|---|
| Length | 147 inches (373 cm) |
| Operating weight | 7603 lbs (3448 kg) |
| Shipping weight | 7400 lbs (3356 kg) |
| Wheelbase | 85.5 inches (217 cm) |
| Width | 79.5 inches (201 cm) |
| Front tire | 7.50-18 |
| Rear tire | 14-34 |
| Weight | 7400 to 7603 pounds |
| Wheelbase | 85.5 inches (217 cm) |
| Ag front | 7.50-18 / 30x6 steel |
| Ag rear | 14-34 / 54x12 steel |
Nebraska Tractor Test 406
| Belt fuel use (max) | 2.8 gal/hour (10.6 l/hour) |
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| Belt power (max) | 48.58 hp (36.2 kW) |
| Description | Diesel 5-speed 2WDApril 19 - 28, 1949Link: Nebraska Tractor Test 406 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 43.15 hp (32.2 kW) |
| Max pull | 6644 lbs (3013 kg) |
R Serial Number Location
| Description | Right side of tractor above belt pulley. |
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R Serial Numbers
| 1949 | 1000 |
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| 1950 | 3541 |
| 1951 | 6505 |
| 1952 | 10745 |
| 1953 | 15720 |
| 1954 | 19485 |
| Description | FAQ: How to read a serial number table. |
| Final | 22293 |
References
| Description | The John Deere Styled "Letter" Series by J.R. Hobbs / Tractors 1918-1976 published by John Deere* / The New Model R Diesel published in 1949, by John Deere / Operator's Manual Model R Diesel Tractor (OM-R2012) / *Publication contains known errors. |
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