John Deere R: all source data
All 58 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 | John Deere |
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| (no label) | Standard-tread tractor |
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| (no label) | Built in Waterloo, Iowa, USA |
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| Total built | 21,293 |
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| (no label) | Original price was $3,650 in 1954 |
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| (no label) | 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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Engine| (no label) | John Deere 6.8L 2-cyl diesel |
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| Fuel tank | 22 gal | 83.3 L |
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| Aux. fuel | 1 gal | 3.8 L |
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Transmission| (no label) | 5-speed gear |
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Power| Drawbar (claimed) | 35 hp | 26.1 kW |
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| Belt (claimed) | 43 hp | 32.1 kW |
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| Plows | 4 (14-inch) |
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| Drawbar (tested) | 43.15 hp | 32.2 kW |
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| Belt (tested) | 48.58 hp | 36.2 kW |
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Mechanical| (no label) | Two-wheel drive |
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| (no label) | Manual steering |
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| (no label) | Mechanical drum brakes |
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| (no label) | Open operator station. |
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Pto| Rear PTO | live |
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| Rear PTO Type | 540 |
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Dimensions| Wheelbase | 85.5 inches | 217 cm |
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| Weight | 7400 to 7603 pounds |
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| Front tire | 7.50-18 |
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| Rear tire | 14-34 |
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Serial location| (no label) | Right side of tractor above belt pulley. |
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Electrical| Ground | positive |
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| Battery volts | 6 |
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Engine
Engine detail| (no label) | John Deere |
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| (no label) | diesel |
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| (no label) | 2-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 415.5 ci | 6.8 L |
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| Bore/Stroke | 5.75x8.00 inches | 146 x 203 mm |
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| Air cleaner | oil bath |
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| Compression | 16:1 |
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| Rated RPM | 1000 |
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| Firing order | 1-2 |
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| Starter type | 2-cylinder pony motor |
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| Coolant capacity (Coolant) | 54.5 qts | 51.6 L |
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Engine oil| Oil capacity | 13 qts | 12.3 L |
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Transmission
Transmission| Type | gear |
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| Gears | 5 forward and 1 reverse |
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| Clutch | dry disc |
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| Oil capacity | 9.5 qts | 9.0 L |
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| Oil type | SAE 90 |
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| (no label) | The tractor must be stopped and clutch used to shift gears. |
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Dimensions
Tires| Ag front | 7.50-18 |
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| Ag rear | 14-34 |
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| Ag rear | 15-34 |
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| Ag front | 30x6 steel |
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| Ag rear | 54x12 steel |
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Dimensions| Wheelbase | 85.5 inches | 217 cm |
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| Length | 147 inches | 373 cm |
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| Width | 79.5 inches | 201 cm |
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| Height | 78.125 inches | 198 cm |
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| Shipping weight | 7400 lbs | 3356 kg |
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| Operating weight | 7603 lbs | 3448 kg |
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