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Oliver 1550 Specs ( 1965-1969 )

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Production

Description Row-Crop tractor / Built in Charles City, Iowa, USA / Original price was $6,000 in 1969
Manufacturer Oliver

Engine

Air cleaner dry / dry / dry
Bore/Stroke 3.625x3.75 inches (92 x 95 mm) / 3.625x3.75 inches (92 x 95 mm) / 3.625x3.75 inches (92 x 95 mm)
Compression 16.5:1 / 8:1 / 8.75:1
Coolant capacity 20 qts (18.9 L) / 20 qts (18.9 L) / 20 qts (18.9 L)
Description Oliver / diesel / 6-cylinder / liquid-cooled / Oliver / gasoline / 6-cylinder / liquid-cooled / Oliver / LP-gas / 6-cylinder / liquid-cooled
Displacement 232 ci (3.8 L) / 232 ci (3.8 L) / 232 ci (3.8 L)
Oil capacity 5 qts (4.7 L) / 5 qts (4.7 L) / 5 qts (4.7 L)
Rated RPM 2200 / 2200 / 2200
Starter volts 12 / 12 / 12
Engine type Oliver 3.8L 6-cyl diesel / Oliver 3.8L 6-cyl gasoline / Oliver 3.8L 6-cyl LP-gas
Diesel Fuel tank 27.5 gal (104.1 L)
Engine type Oliver 3.8L 6-cyl diesel / Oliver 3.8L 6-cyl gasoline / Oliver 3.8L 6-cyl LP-gas
Gas Fuel tank 27.5 gal (104.1 L)
LP-gas Fuel tank 34 gal (128.7 L)
Diesel PTO (claimed) 53 hp (39.5 kW)
Drawbar (tested) 45.7 hp (34.1 kW)
Gas PTO (claimed) 53 hp (39.5 kW)
LP-gas PTO (claimed) 51 hp (38.0 kW)
PTO (tested) 53.50 hp (39.9 kW)

Transmission

Clutch 279.4mm dry disc / 279.4mm dry disc
Description The Hydra-Power transmission provides a two-speed power shift between direct-drive and the lower Hydra-Power range.
Gears 12 forward and 4 reverse / 6 forward and 2 reverse
Oil capacity 32 qts (30.3 L) / 32 qts (30.3 L)
Transmission Hydra-Power
Type partial power shift / unsynchronized gear
Transmission type 12-speed partial power shift / 6-speed unsynchronized gear
Transmission type 12-speed partial power shift / 6-speed unsynchronized gear

Mechanical

Cab Open operator station. Oliver Continental cab optional.
Description Disc brakes
Drive type Two-wheel drive
Steering power assist

Hitch

Control lower-link draft sensing
Rear Type II/I

PTO

Rear PTO independent
Rear PTO Type 540

Dimensions & Tires

Ballasted weight 8730 lbs (3959 kg)
Height (exhaust) 97.625 inches (247 cm)
Length 154.6 inches (392 cm)
Operating weight 7000 lbs (3175 kg)
Rear tread 55 to 90.9 inches (139 to 230 cm)
Wheelbase 99 inches (251 cm)
Width 81.5 inches (207 cm)
Front tire 6.00-16
Rear tire 15.5-38
Weight 7000 lbs (3175 kg)
Wheelbase 99 inches (251 cm)
Ag front 6.00-16
Ag rear 15.5-38

1550 Serial Numbers

1965 157841
1966 168919
1967 184488
1968 196301
1969 213243
Description FAQ: How to read a serial number table.
Final 218186

Nebraska Tractor Test 943

Description Diesel Hydra-Power 2WDJune 8 - 15, 1966Link: Nebraska Tractor Test 943 file / PTO performance / Drawbar performance / Gear 4-Hydra used for power test. / Gear 2-Hydra used for pull test.
Fuel use 4.3 gal/hour (16.3 l/hour) / 4.4 gal/hour (16.7 l/hour)
Max power 45.7 hp (34.1 kW)
Max pull 6,636 lbs (3010 kg)
Power at rated engine speed 53.50 hp (39.9 kW)

Nebraska Tractor Test 944

Description Gasoline Hydra-Power 2WDJune 8 - 16, 1966Link: Nebraska Tractor Test 944 file / PTO performance / Drawbar performance / Gear 4-Hydra used for power test. / Gear 2-Hydra used for pull test.
Fuel use 4.9 gal/hour (18.5 l/hour) / 4.9 gal/hour (18.5 l/hour)
Max power 45.4 hp (33.9 kW)
Max pull 6,799 lbs (3084 kg)
Power at rated engine speed 53.3 hp (39.7 kW)

Oliver 1550 attachments

Description front-end loader

References

Description Farm Loaders published in 1969, by Oliver

Tractor Tests

Description NTTL 943: diesel Hydra-Power 2WD / NTTL 944: gasoline Hydra-Power 2WD

Variants

Row-crop tricycle front, single front, or adjustable wide front
Utility low-clearance
Wheatland standard front