Benjamin Franklin Gravely (29 November 1876 – January 1953) of Dunbar, West Virginia manufactured in 1916 a hand-pushed plow fitted with an auxiliary Indian motorcycle engine and driven by belts. His goal was to build a tractor which would revolutionize gardening and lawn maintenance for the homeowner.
A friend who owned a machine shop allowed Gravely to build more tractors at his shop. It was there that Gravely designed the engine and built six or seven of the first tractors, which weighed about 190 pounds each. He also developed several new tools for the engine and drive train.
The Gravely company was incorporated in 1922. In the mid-1920s, Gravely decided to build and market the tractors commercially. He and several backers raised enough capital to purchase an old factory in the Dunbar, West Virginia area that had previously been used for the manufacture of tires. One of the stockholders, Eustace Rose, a close friend and a mechanic, inventor and engineer, collaborated closely in the development of the tractor. Rose is also reputed to have invented the first automatic transmission used by the Chrysler Corporation.
Survival and growth
Strong sales assured the company's profitability through the Great Depression. Customer loyalty was an important element in this success. In the company's earliest years, Gravely would load several tractors into his Studebaker tourer car and sell them to farms as far away as West Virginia and Florida at $175 each. He would then drive back and pick up another load.
Within a few years, sales outlets had been established from coast to coast, with international sales representatives in Germany, France and Switzerland.
Not much unlike Gravely's first power driven plow, Gravely today offers two kinds of all-gear "tractors" − walk-behind self-propelled units and zero-turn-radius riding mowers, which evolved out of the durable riding tractors that defined the company for much of its later years.
The all-gear walk-behind units are powered by a single-cylinder four-cycle engine, available in a one wheel model D (1916−195?) and the two wheel model L (1936−1976). variations of both models are very extensive including bodywork changes, mechanical changes and color changes throughout the production. visit the gravely tractor club of America for any further information.
Earlier models had attachments such as rototillers and flail mowers. Later attachment options include snowblowers, snow blades, and a sprayer.gravely in the '70s had 38 attachments, but through innovations of various companies the list expands to over 80. Sulkies and steering sulkies are available for walk-behind tractors, as well as an optional solid platform with space for carrying small amounts of cargo (trailers).
The majority of Gravely riding tractors are, like the walk-behinds, characterized as "all-gear", that is, with a rear-mounted engine mated to a transaxle powering the tractor's rear wheels. This design thus eliminates the need for "drive belts" to power the tractor forward or backwards. The only belts required on Gravely equipment (with the exception of the 408) is the blade drive belt for its mower decks, which is powered by a gear box on the deck, which receives power from a PTO driveshaft connected to the tractor's drivetrain. The tractor's direction is controlled by a lever to the right of the operator for forward, neutral, or reverse operation. Because of this, this tractor is often mistaken for having a hydrostatic drive.
In 1967, Gravely introduced its 400 series riding tractors, with the all-gear drivetrain that would come to define the company in future years.
The tractor had four speeds, two in low range and two in high range, with power configurations of single-cylinder 10, 12, or 14 horsepower Kohler or Onan engines. In 1969 was the debut of the 16.5 HP Onan CCKA twin-cylinder powered Commercial 450, the most powerful tractor the company offered at the time. The commercial-grade units were painted a characteristic yellow and white, while the home-use units were painted red and white.
The 400 series was produced until 1971, when Gravely introduced its replacement: the 800 series tractors, which gained popularity in the consumer market. This tractor had eight speeds, with four speeds each in low and high range, with engine options ranging from a cast-iron 10 horsepower Kohler single-cylinder, to an 18 horsepower cast-aluminum twin-cylinder Onan. The 800 series was replaced with the 8000 series by 1978, which offered more powerful engine configurations and an improved hydraulic lift option, yet retained the eight-speed transaxle. Many of the parts for the 800 and 8000 series designs, excepting the engine, are the same or compatible, and are readily available as new and used parts online, in a rather impressive after-market.
The 8000 series remained in production until 1987, when it was replaced by the professional-grade "G" series. The G series ended production in 2004.
The eight-speed transaxle was standard on all 800 and 8000 series tractors, with the engine being the only major difference. The design of the drive clutches was visibly changed to a simpler arrangement around the early 1980s; the two designs are generally interchangeable. The rear-engine mounting and simple construction allowed Gravely owners to service and even upgrade their engines on their own.
Gravely also released an economy version of tractor in 1970, featuring a belt-driven 4-speed transmission and eight-horsepower engine, known as the 408. This did not sell nearly as well as the popular all-gear units and was discontinued in 1977, when it was replaced with a heavy-duty professional grade of tractor known as the 900 series. Another tractor of this type, called the 9000 series was also released later that same year and replaced the 900 the following year until production ended in 1982. This tractor, much larger than the 8000 series and its predecessors, was equipped with a 27-horsepower I-4 water-cooled Continental engine.
As of 2006, Gravely provides a full line of power lawn implements, including zero-turn mowers, reel mowers, and grass trimmers. Gravely today is a division of Ariens. Gravely products today continue to be sold exclusively through its dealer network, rather than discount retail home improvement and department stores.
- The Gravely Story Adaptation on official website
- GravelyTractorClub.org Manuals, parts lists, and sales literature for Gravely garden tractors, attachments. and accessories.
- Gravely on official website
- Ariens web-site