The Oliver 1855, part of the 55 Series, is a classic row-crop tractor that was manufactured from 1969 to 1975. It is known for its reliability and versatility in farm operations during that era. This tractor was available in both diesel and gasoline engine options, offering different power levels for various tasks. It featured a closed-center hydraulic system and a power take-off (PTO) for connecting to implements. The transmission options included a 6-speed gear transmission and an 18-speed partial power shift transmission, providing flexibility in handling different terrain and tasks. The Oliver 1855 was built with a robust chassis, power steering, and hydraulic disc brakes for efficient control and safety. It was offered with an optional two-post ROPS (Roll-Over Protective Structure) and cab for operator comfort and protection. Overall, the Oliver 1855 tractor was a workhorse of its time, designed to meet the needs of farmers and agricultural professionals.
| General Information |
|---|
| Model | Oliver 1855 |
| Years of Production | 1969 – 1975 |
| Series | 55 Series |
| Type | Row-Crop Tractor |
| Manufacturer Information |
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| Manufacturer | Oliver (a part of White) |
| Original Price (1975) | $13,000 |
| Engine Specifications (Diesel) |
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| Engine Type | Oliver-Waukesha 5.1L 6-cylinder diesel |
| Displacement | 310 cubic inches (5.1 liters) |
| Bore/Stroke | 3.875×4.375 inches (98×111 mm) |
| Air Cleaner | Dry |
| Compression Ratio | 16:1 |
| Rated RPM | 2400 |
| Starter Volts | 12 |
| Coolant Capacity | 20 quarts (18.9 liters) |
| Power Take-off (PTO) Power (Claimed) | 98 hp (73.1 kW) |
| Drawbar Power (Tested) | 82.65 hp (61.6 kW) |
| PTO Power (Tested) | 98.60 hp (73.5 kW) |
| Engine Specifications (Gasoline) |
|---|
| Engine Type | Oliver-Waukesha 5.1L 6-cylinder gasoline |
| Displacement | 310 cubic inches (5.1 liters) |
| Bore/Stroke | 3.875×4.375 inches (98×111 mm) |
| Air Cleaner | Dry |
| Compression Ratio | 8.5:1 |
| Rated RPM | 2400 |
| Transmission Specifications |
|---|
| Transmission Type (Diesel) | 6-speed gear |
| Transmission Type (Gasoline) | 18-speed partial power shift |
| Clutch | 330mm cerametallic disc |
| Note | The Hydraul-Shift offers a power shift between over-, under-, and direct-drive for each gear. |
| Hydraulics |
|---|
| Type | Closed center |
| Pump Flow | 20 gallons per minute (75.7 liters per minute) |
| Tractor Hitch |
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| Rear Hitch Type | I/II (Optional II/III) |
| Rear Lift Capacity | 4,000 lbs (1814 kg) or 6,000 lbs (2721 kg for Cat 3) |
| Power Take-off (PTO) |
|---|
| Rear PTO | Independent |
| Rear PTO RPM Options | 540, 540/1000, 1000 |
| Engine RPM at Rated PTO Speed | 984 @ 2400 |
| Serial Numbers |
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| 1969 | 220-640 |
| 1970 | 221-099 |
| 1971 | 225-508 |
| 1972 | 231-366 |
| 1973 | 236-585 |
| 1974 | 247-436 |
| 1975 | 255-727 |
| Final | 255-785 |
| Tire Specifications |
|---|
| Front Tires (2WD) | 11L-15 |
| Rear Tires (2WD) | 23.1-34 |
| Dimensions (2WD) |
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| Wheelbase | 103 inches (261 cm) |
| Length | 159.5 inches (405 cm) |
| Width | 80.625 inches (204 cm) |
| Height (steering wheel) | 85.5 inches (217 cm) |
| Weight | 11,150 lbs (5057 kg) |
| Ground Clearance | 25.5 inches (64 cm) |
| Front Tread | 61.5 to 87.5 inches (156 to 222 cm) |
| Rear Tread | 57 to 119.5 inches (144 to 303 cm) |
| Dimensions (4WD) |
|---|
| Wheelbase | 86.25 inches (219 cm) |
| Length | 152.375 inches (387 cm) |
| Front Tread | 60/70.75/80 inches (152/179/203 cm) |
| Performance Test (Nebraska Tractor Test 1040 – Diesel 18-speed 2WD) |
|---|
| PTO Power at Rated Engine Speed | 98.60 hp (73.5 kW) |
| Fuel Use (PTO) | 6.2 gal/hour (23.5 l/hour) |
| Drawbar Max Power | 82.65 hp (61.6 kW) |
| Fuel Use (Drawbar) | 6.0 gal/hour (22.7 l/hour) |
| Max Pull | 11,487 lbs (5210 kg) |
| Note | Gear 3-direct used for power test. |
| Note | Gear 1-over used for pull test. |
Oliver 1855 overview
The Oliver 1855 stands as an iconic historical model in today’s world, cherished by collectors and tractor enthusiasts alike. It represents a significant era in the evolution of agricultural machinery and offers a unique glimpse into the technology of its time.
Historical Significance:
Manufactured from 1969 to 1975, the Oliver 1855 is a testament to the transition period in tractor technology. It marked a time when tractor designs were undergoing substantial changes, including the shift from gasoline to diesel engines. This historical context makes it a prized collector’s item and a valuable piece of farming heritage.
Collectors’ Model:
Among collectors, the Oliver 1855 is highly sought after for its distinctive features and historical relevance. It serves as a tangible reminder of the innovations and challenges faced by farmers during that era. Owning and preserving an Oliver 1855 is akin to owning a piece of agricultural history.
Overview of Specifications and Aspects:
Power Sources: The availability of both gasoline and diesel engine options was a notable feature of the Oliver 1855. It allowed farmers to choose the powerplant that best suited their specific needs, reflecting the diversity of farming practices during the time.
Transmission Technology: The tractor’s transmission offered 18-speed partial power shift capabilities. This feature was groundbreaking for its time, providing flexibility in adapting to various tasks and terrains. It exemplifies the advancements in transmission technology during the era.
Row-Crop Design: The Oliver 1855’s row-crop design made it versatile for a range of agricultural operations, from plowing to planting. Its design incorporated the needs of row-crop farmers, demonstrating the understanding of diverse farming practices.
Safety Features: While safety standards were evolving, the availability of an optional two-post ROPS (Roll-Over Protective Structure) and cab showcased a growing awareness of operator safety. These features represented a significant step forward in tractor safety during the period.
Maintenance and Challenges: Like all vintage tractors, the Oliver 1855 may face challenges related to its age, including engine wear, hydraulic system issues, and electrical problems. However, these challenges are part of its historical character and can be addressed with proper care and maintenance.
In conclusion, the Oliver 1855 is a historical model that provides a fascinating window into the tractor technology of its time. Its dual power options, advanced transmission, and row-crop design were significant aspects that catered to the evolving needs of farmers. As a collector’s item, it serves as a tangible connection to a pivotal era in agriculture, offering insights into the innovations and challenges faced by those who worked the land during the late 1960s and early 1970s.
