Massey-Harris 50 Specs ( 1955-1957 )
Overview
The Massey-Harris 50 is a utility farm tractor manufactured in Detroit, Michigan, between 1955 and 1957. It is equipped with a 2.2L four-cylinder Continental gasoline engine and a 6-speed unsynchronized gear transmission providing six forward and two reverse gears. Evaluation in Nebraska Tractor Test 595 recorded a maximum belt power of 32.58 hp and a maximum drawbar pull of 3525 lbs.
Ideal Applications
Tested Performance Data:
Nebraska Tractor Test 595 documented a maximum belt power of 32.58 hp and a maximum drawbar pull of 30.50 hp with a fuel consumption rate of 3.1 gallons per hour.
Transmission and PTO Configuration:
The tractor features an unsynchronized gear transmission with two ranges and a live rear PTO system utilizing a two-stage dry disc clutch to operate at 540 RPM.
Chassis and Hydraulic Specifications:
The mechanical layout includes a Category I rear hitch with mechanical draft control, a 3 gpm open center hydraulic pump, and an adjustable rear tread width ranging from 48 to 76 inches.
Production
| Description | Utility tractor / Built in Detroit, Michigan, USA |
|---|---|
| Manufacturer | Massey-Harris |
Engine
| Engine type | Continental 2.2L 4-cyl gasoline |
|---|---|
| Fuel tank | 17 gal (64.3 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 3.3125x3.875 inches (84 x 98 mm) |
| Compression | 6.6:1 |
| Coolant capacity | 10 qts (9.5 L) |
| Description | Continental Z-134 / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 134 ci (2.2 L) |
| Oil capacity | 6 qts (5.7 L) |
| Rated RPM | 2000 |
| Starter volts | 12 |
| Belt (tested) | 32.58 hp (24.3 kW) |
| Drawbar (tested) | 30.50 hp (22.7 kW) |
| Plows | 3 |
Transmission
| Clutch | 279.4mm dry disc |
|---|---|
| Description | Three gears, plus reverse, in two ranges. |
| Gears | 6 forward and 2 reverse |
| Transmission type | 6-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Differential mechanical shoe brakes |
| Drive type | Two-wheel drive |
| Steering | manual / power OptOptional |
Hydraulics
| Pump flow | 3 gpm (11.4 lpm) |
|---|---|
| Type | open center |
Hitch
| Control | mechanical draft control |
|---|---|
| Rear Type | I |
PTO
| Clutch | 228.6mm dry disc |
|---|---|
| Rear PTO | live *Two-stage clutch. |
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 12 |
|---|---|
| Charging system | generator |
Dimensions & Tires
| Ballasted weight | 5469 lbs (2480 kg) |
|---|---|
| Height | 56.8 inches (144 cm) |
| Length | 120 inches (304 cm) |
| Operating weight | 3432 lbs (1556 kg) |
| Rear tread | 48 to 76 inches (121 to 193 cm) / 52 to 72 inches (power) (132 to 182 cm) |
| Wheelbase | 81.2 inches (206 cm) |
| Front tire | 5.50-16 |
| Rear tire | 11-28 |
| Weight | 3432 lbs (1556 kg) |
| Wheelbase | 81.2 inches (206 cm) |
| Ag front | 5.50-16 |
| Ag rear | 11-28 |
50 Serial Number Location
| Description | Serial number plate on the dashboard of the Massey-Harris 50. |
|---|
50 Serial Numbers
| 1955 | 500001 |
|---|---|
| 1956 | 500473 |
| 1957 | 510764 |
| Description | FAQ: How to read a serial number table. |
Belt Pulley
| Diameter | 9 inches (22 cm) |
|---|---|
| RPM | 1313 |
| Speed | 3100 ft/min (944.88 meters/min) |
| Width | 6.5 inches (16 cm) |
Nebraska Tractor Test 595
| Belt fuel use (max) | 3.1 gal/hour (11.7 l/hour) |
|---|---|
| Belt power (max) | 32.58 hp (24.3 kW) |
| Description | Gasoline 6-speed 2WDSeptember 25 - October 4, 1956Link: Nebraska Tractor Test 595 file / Drawbar performance / Gear 4 used for power test. / Gear 1 used for pull test. |
| Max power | 30.50 hp (22.7 kW) |
| Max pull | 3525 lbs (1598 kg) |
References
| Description | MH50 published in 1950, by Massey-Harris / today's most dynamic new tractor published in 1950, by Massey-Harris / Dyanmic New Tractors published in 1956, by Massey-Harris |
|---|
Variants
| F-40 | similar Ferguson model |
|---|