| Manufacturer | Oliver |
| Price | 13,000(USD) |
| Model | 1855 |
| Equipment Type | Row-Crop Tractors |
| Factory |
NEBRASKA TRACTOR TEST 1040 2
| Description | Diesel 18-speed 2WD May 5 - 22, 1970 Link: Nebraska Tractor Test 1040 file PTO performance Drawbar performance Gear 3-direct used for power test Gear 1-over used for pull test |
| Power at rated engine speed | 98.60hp / 73.5kW |
| Fuel use | 6.0gal/hour / 22.7l/hour |
| Max power | 82.65hp / 61.6kW |
| Max pull | 11,487lbs / 5210kg |
OLIVER 1855 POWER
| PTO (claimed) | 92hp / 68.6kW (gas)/98hp / 73.1kW (diesel) |
| Drawbar (tested) | 82.65hp / 61.6kW |
| PTO (tested) | 98.60hp / 73.5kW |
ENGINES OVERVIEW
The Oliver 1855 tractor is equipped with a robust Oliver-Waukesha 5.1L 6-cylinder engine, available in both diesel and gasoline variants, providing flexibility depending on fuel preference and operational needs. Advantages of the diesel variant include better fuel efficiency and torque delivery, making it suitable for heavy-duty tasks, while the gasoline model may appeal to those seeking lower initial costs and easier starting in cold conditions. Challenges to consider include the potential for higher maintenance costs associated with diesel fuel systems and the tractor's weight, which may restrict mobility in certain terrains.
| Description | Oliver-Waukesha 5.1L 6-cyl diesel/Oliver-Waukesha 5.1L 6-cyl gasoline |
ENGINE DETAIL 1
The Oliver 1855 features a robust 5.1L turbocharged diesel engine, providing excellent torque at 2400 RPM, suitable for heavy agricultural tasks. With a compression ratio of 16:1, it offers efficient combustion but may lead to higher thermal stress and require diligent cooling management due to its 20-quart coolant capacity. The dry air cleaner is advantageous for reducing maintenance frequency, yet it necessitates consistent monitoring of air quality to prevent engine wear.
| Description | Oliver-Waukesha turbocharged diesel 6-cylinder liquid-cooled |
| Displacement | 310ci / 5.1L |
| Bore/Stroke | 3.875x4.375inches / 98x 111 mm |
| Air cleaner | dry |
| Compression | 16:1 |
| Rated RPM | 2400 |
| Starter volts | 12 |
| Coolant capacity | 20qts / 18.9L |
ENGINE DETAIL 2
The Oliver 1855 features a robust 5.1L Waukesha gasoline 6-cylinder engine, providing substantial power with a displacement of 310 ci, ideal for heavy lifting and towing applications. With a relatively low compression ratio of 8.5:1, it offers good fuel efficiency at rated RPMs of 2400, although this may limit high-speed performance. The dry air cleaner system simplifies maintenance but may require more frequent cleaning in dusty environments to maintain optimal engine efficiency.
| Description | Oliver-Waukesha gasoline 6-cylinder liquid-cooled |
| Displacement | 310ci / 5.1L |
| Bore/Stroke | 3.875x4.375inches / 98x 111 mm |
| Air cleaner | dry |
| Compression | 8.5:1 |
| Rated RPM | 2400 |
OLIVER 1855 ENGINES
The Oliver 1855 tractor features a robust Oliver-Waukesha 5.1L 6-cylinder engine, available in both diesel and gasoline variants, providing versatility in fuel choice. With a 35-gallon fuel tank, it offers extended operational capacity suitable for long working hours on larger farms. However, the larger size and weight of the tractor could pose maneuverability challenges in tighter spaces.
| Description | Oliver-Waukesha 5.1L 6-cyl diesel/Oliver-Waukesha 5.1L 6-cyl gasoline |
| Fuel tank | 35gal / 132.5L |
TRANSMISSIONS OVERVIEW
The Oliver 1855 tractor features a 6-speed transmission with an 18-speed partial power shift, providing flexibility for various operational needs and improving efficiency in both fieldwork and transport applications. The partial power shift allows for on-the-go gear changes, reducing downtime and enhancing productivity, though it may require a steeper learning curve for operators unfamiliar with power shift systems. Ensure regular maintenance on the transmission to mitigate wear and maximize performance during intensive use.
| Description | 6-speed gear 18-speed partial power shift |
TRANSMISSION 1
The Oliver 1855 tractor features a 6F/2R gear transmission, providing versatile speed selection suitable for various agricultural tasks and terrain challenges. The 330mm cerametallic disc clutch offers enhanced durability and efficiency, enabling smoother engagement under heavy loads but may require more maintenance due to increased friction wear over time. This configuration is advantageous for heavy-duty applications, but operators should be mindful of potential heating issues during prolonged use.
| Type | gear |
| Gears | 6 forward and 2 reverse |
| Clutch | 330mm cerametallic disc |
SPEEDS 1
| Description | With 18.4-34 rear tires |
TRANSMISSION 2
The Oliver 1855 tractor features a Hydraul-Shift transmission, providing a partial power shift with 18 forward and 6 reverse gears, enhancing versatility for various tasks. The 330mm cerametallic disc clutch offers durability, ensuring efficient power transfer. This setup is ideal for applications requiring quick gear changes under load, though operators may need to adapt to the complexity of managing two shifting systems (mechanical and hydraulic).
| Transmission | Hydraul-Shift |
| Type | partial power shift |
| Gears | 18 forward and 6 reverse |
| Clutch | 330mm cerametallic disc |
| Description | The Hydraul-Shift overs a power shift between over-, under-, and direct-drive for each gear. |
SPEEDS 2
| Description | With 18.4-34 rear tires |
MECHANICAL
The Oliver 1855 features a 4x2 2WD or 4x4 MFWD configuration, offering versatility in traction depending on operational needs and terrain. Its power steering enhances maneuverability, while the differential hydraulic disc brakes provide effective stopping power, critical for safety during heavy loads or uneven surfaces. The optional cab and two-post ROPS offer improved operator protection and comfort, particularly valuable in adverse weather conditions or when working in the field for extended periods.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Steering | power |
| Brakes | differential hydraulic disc |
| Cab | Open operator station. Optional two-post ROPS and cab. |
| Transmissions | 6-speed gear/18-speed partial power shift |
HYDRAULICS
| Type | closed center |
| Pump flow | 20gpm / 75.7lpm |
TRACTOR HITCH
| Rear Type | I/II/II/III (optional) |
| Rear lift | 4,000lbs / 1814kg/6,000lbs / 2721kg (Cat 3) |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/540/1000/1000 |
| Engine RPM | 984@2400 |
OLIVER 1855 TIRES
The Oliver 1855 tractor features a robust configuration with 11L-15 agricultural front tires and 23.1-34 rear tires, providing excellent traction and stability on varied terrains. This tire size arrangement facilitates efficient power transfer and enhances load-bearing capacity, making it suitable for heavy-duty farming operations. However, the larger rear tires may limit maneuverability in tighter spaces, which could be a consideration for smaller farms or landscaping tasks.
| Ag front | 11L-15 |
| Ag rear | 23.1-34 |
DIMENSIONS
| 2WD Wheelbase | 103inches / 261cm |
| 4WD Wheelbase | 86.25inches / 219cm |
| 2WD Length | 159.5inches / 405cm |
| 4WD Length | 152.375inches / 387cm |
| Width | 80.625inches / 204cm *Minimum width |
| Height (steering wheel) | 85.5inches / 217cm |
| Weight | 11,150lbs / 5057kg |
| 2WD Ground clearance | 25.5inches / 64cm |
| 4WD Ground clearance | 13.5inches / 34cm |
| 2WD Front tread | 61.5 to 87.5inches / 156to 222 cm |
| 4WD Front tread | 60/70.75/80inches / 152/179/203 cm |
| Rear tread | 57 to 119.5inches / 144to 303 cm |
DIMENSIONS & TIRES
The Oliver 1855 tractor, with a weight of 11,150 lbs, provides stability and durability for heavy fieldwork, but its limited maneuverability in tight spaces may present challenges. The 2WD and 4WD wheelbases of 103 inches and 86.25 inches respectively suggest better traction in 4WD for uneven terrain, making it ideal for varied soil conditions. The front tires (11L-15) offer good flotation, while the larger rear tires (23.1-34) enhance power transfer during heavy towing applications.
| 2WD Wheelbase | 103inches / 261cm |
| 4WD Wheelbase | 86.25inches / 219cm |
| Weight | 11,150lbs / 5057kg |
| Front tire | 11L-15 |
| Rear tire | 23.1-34 |
1855 SERIAL NUMBERS
| 1969 | 220-640 |
| 1970 | 221-099 |
| 1971 | 225-508 |
| 1972 | 231-366 |
| 1973 | 236-585 |
| 1974 | 247-436 |
| 1975 | 255-727 |
| Final | 255-785 |