| Manufacturer |
Hart-Parr |
| Price |
1,350(USD) |
| Model |
18-36 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Charles City, Iowa, USA |
NEBRASKA TRACTOR TEST 128
| Description |
Distillate 2-speed 2WD/October 18 - 25, 1926/Link: Nebraska Tractor Test 128 file/Drawbar performance |
| Belt power (max) |
42.85 hp/32.0 kW |
| Belt fuel use (max) |
5.0 gal/hour/18.9 l/hour |
| Max power |
32.2 hp/24.0 kW |
| Max pull |
4,075 lbs/1848 kg |
HART-PARR 18-36 POWER
| Drawbar (claimed) |
18 hp/13.4 kW |
| Belt (claimed) |
36 hp/26.8 kW |
| Drawbar (tested) |
32.2 hp/24.0 kW |
| Belt (tested) |
42.85 hp/32.0 kW |
ENGINE DETAIL
The Hart-Parr 18-36 features a robust 2-cylinder, 501 ci (8.2 L) engine with a 6.75 x 7.00 inch bore and stroke, indicating strong torque characteristics suitable for heavy farm operations. Its liquid-cooled design ensures optimal engine temperature management, while the Stromberg MB3 carburetor provides essential fuel delivery at the rated 800 RPM. Challenges may arise in parts availability due to its historical context, but its dry centrifugal air cleaner enhances engine longevity in dusty environments, making it a reliable choice for vintage agriculture.
| Description |
Hart-Parr/gasoline/2-cylinder/liquid-cooled |
| Displacement |
501 ci/8.2 L |
| Bore/Stroke |
6.75x7.00 inches/171 x 178 mm |
| Fuel system |
Stromberg MB3 carburetor |
| Air cleaner |
dry centrifugal |
| Rated RPM |
800 |
HART-PARR 18-36 ENGINE
The Hart-Parr 18-36 tractor features an 8.2L two-cylinder gasoline engine, providing significant power output for its era, making it suitable for heavy agricultural tasks. Key advantages include its robust torque characteristics and durability, but challenges may arise from fuel efficiency and the complexity of maintaining a two-cylinder engine. When utilized in farming scenarios requiring high tractive effort, this tractor excels, although operators should be prepared for higher operational costs due to gasoline consumption.
| Description |
Hart-Parr 8.2L 2-cyl gasoline |
TRANSMISSIONS OVERVIEW
The Hart-Parr 18-36 tractor features a 2-speed gear or optional 3-speed transmission, allowing for versatility in operational speed and improved torque management on varying terrains. Its gear configuration enhances power delivery for tasks such as plowing or tilling, which could be beneficial for farmers requiring adaptability in their fieldwork. However, the complexity of the transmission system may pose maintenance challenges for some users, necessitating a knowledgeable operator for optimal performance.
| Description |
2-speed gear/3-speed |
TRANSMISSION 1
The Hart-Parr 18-36 tractor features a simple gear configuration with 2 forward and 1 reverse gear, making it suitable for basic agricultural tasks but may limit operational versatility in varied terrain. The dry disc clutch offers reliable engagement and disengagement, though it may require more frequent maintenance compared to hydraulic clutches. Ideal for small to medium-sized farms, this tractor excels in durability but may struggle with complex field conditions due to its limited gear options.
| Type |
gear |
| Gears |
2 forward and 1 reverse |
| Clutch |
dry disc |
TRANSMISSION 2
The Hart-Parr 18-36 tractor features a straightforward gear system with 3 forward and 1 reverse gear, offering limited speed versatility and maneuverability in tight spaces. This simplicity can be advantageous for maintenance but may pose challenges in more complex farming tasks requiring rapid speed changes. Ideal for smaller farms or vintage restoration projects, it serves well in applications where reliability outweighs the need for variable speed.
| Gears |
3 forward and 1 reverse |
MECHANICAL
The Hart-Parr 18-36 features a 4x2 two-wheel drive chassis, which provides simplicity and reduced weight but may limit traction in challenging terrain. The manual steering offers direct control, though it may require more effort than power-assisted systems, which can be a drawback during long operational periods. Its 2-speed gear and 3-speed transmission setup allows for versatility in varying field conditions, making it suitable for general farming tasks but potentially less efficient for high-speed road travel.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Open operator station. |
| Transmissions |
2-speed gear/3-speed |
HART-PARR 18-36 TIRES
The Hart-Parr 18-36 tractor features impressive steel wheels, with 28x5 at the front and 51x12 at the rear, enhancing traction and durability for agricultural work. This configuration provides significant pulling power and stability, ideal for heavy field operations, though it could lead to a rough ride on uneven terrain due to the rigid steel construction. Lastly, while the tractor's robust design promotes longevity and reliability, its weight may present challenges with soil compaction in sensitive areas.
| Ag front |
28x5 (steel) |
| Ag rear |
51x12 (steel) |
DIMENSIONS
DIMENSIONS & TIRES
The Hart-Parr 18-36 tractor, weighing 6100 lbs (2766 kg), features oversized rear tires (51x12) for enhanced traction in heavy field conditions, making it suitable for tillage and other intensive agricultural tasks. However, the relatively smaller front tires (28x5) may limit its stability on uneven terrain, potentially leading to handling challenges when maneuvering in tight spaces. Ideal for large farms where power and traction are paramount, but attention should be given to weight distribution to prevent front-end lift during operation.
| Weight |
6100 lbs/2766 kg |
| Front tire |
28x5 |
| Rear tire |
51x12 |
18-36 SERIAL NUMBERS
| 1926 |
26001 (18-36 G) |
| 1927 |
28851 (18-36 H) |
| 1928 |
33753 (18-36 I) |
| 1929 |
34567 (18-36 I) |
| 1930 |
89160 (18-36 I) |
