Equipment

Brands

Hart-Parr 40 Tractor (1923-1927)

Manufacturer:

Hart-Parr

Price:

2,250(USD)

Series:

Model:

40

Factory:

Charles City, Iowa, USA

Full Specifications

NEBRASKA TRACTOR TEST 97

Description

Kerosene 2-speed 2WD/July 10 - 19, 1923/Link: Nebraska Tractor Test 97 file/Drawbar performance

Belt power (max)

46.40 hp/34.6 kW

Belt fuel use (max)

6.3 gal/hour/23.8 l/hour

Max power

28.23 hp/21.1 kW

Max pull

4830 lbs/2190 kg

HART-PARR 40 POWER

Drawbar (claimed)

22 hp/16.4 kW

Belt (claimed)

40 hp/29.8 kW

Drawbar (tested)

28.23 hp/21.1 kW

Belt (tested)

46.40 hp/34.6 kW

ENGINE DETAIL

Description

Hart-Parr/gasoline/4-cylinder/liquid-cooled/The Hart-Parr 22-40 used a pair of two-cylinder engine blocks from the 20C on a single crankshaft to create the four-cylinder engine. Early models used two carburetors while later models had a single carburetor to feed both blocks.

Displacement

617.7 ci/10.1 L

Bore/Stroke

5.50x6.50 inches/140 x 165 mm

Rated RPM

800

HART-PARR 40 ENGINE

Description

Hart-Parr 10.1L 4-cyl gasoline

TRANSMISSION

Type

gear

Gears

2 forward and 1 reverse

Clutch

mechanical contracting band

MECHANICAL

Chassis

4x2 2WD

Steering

manual

Cab

Open operator station.

Transmission

2-speed gear

HART-PARR 40 TIRES

Ag front

28x5 (steel)

Ag rear

52x13 (steel)

DIMENSIONS

Length

140 inches/355 cm

Width

96 inches/243 cm

Height

67 inches/170 cm

Weight

7500 lbs/3402 kg

DIMENSIONS & TIRES

Weight

7500 lbs/3402 kg

Front tire

28x5

Rear tire

52x13

40 SERIAL NUMBERS

1923

70001

1924

70020

1925

70095

1926

70251

1927

70491

Final

70500

BELT PULLEY

Diameter

14 inches/35 cm

Width

9 inches/22 cm

RPM

800

Speed

2750 ft/min/838.20 meters/min