Farming in Illinois with the Coop Model E-3 Tractor
(Part 2 of 3 Parts): The Kewaunee Company
Brian Wayne Wells
This Article remains under construction. Periodically blocks of text will appear and/or be corrected in the process of construction.
As noted earlier, the 1951 Coop Model E-3 tractor that had been purchased by our Sterling Township farmer bore the serial number #31591. (See the prior article in this this series called “Farming with the Coop Model E-3 Tractor in Illinois” contained at the blog portion of website called Wellssouth.com. ) Our Sterling Township farmer had purchased this tractor without the remote hydraulic capability required for use with the new eight-foot trailing- style double Kewaunee disc that he had just purchased from his local dealership in He knew that the Cockshutt Farm Equipment Company offered a remote hydraulic system as an option for all new Model 30 tractors that were manufactured in Bradford, Ontario, Canada. The various Farmers Union affiliated cooperatives who are selling the Cockshutt Model 30 in the United States under the designation–“Coop” Model E-3, were now offering an “add-on” hydraulic system for E-3 tractors like No. 31591 which had originally been sold without hydraulics.
This add-on hydraulic system was composed of a live-hydraulic pump which was to be mounted to the oil pump at the front of the four-cylinder Buda engine, and the main hydraulic unit located under the operator’s seat. Through this two-part system, the Cockshutt add-on hydraulic kit attempts to provide two hydraulic functions. First, the main hydraulic unit located under the operator’s seat contains a rock shaft that protruded out either side of the main hydraulic unit. The Cockshutt hydraulic add-on kit came complete with two lift arms which were attached to a round shaft that was installed on the drawbar under the power take-off shaft on the tractor. A pair of rock shaft lift arms and two adjustable lift links were included in the kit. The rock shaft lift arms were attached to the ends of the rock shaft. This provided the power for the three-point hitch. Two adjustable lift links were connected to the rock shaft lift arms with the lift arms attached to the drawbar. The rock shaft was powered by hydraulic oil under pressure from the hydraulic pump. The rock shaft would turn and pull up the lift arms. These two lift arms formed two points of the three point hitch and were the power of the three-point system. A top link attached to the rear of the tractor above the power take off shaft formed the third point of the three-point hitch.
However, there were also two “Parker-Pioneer” hydraulic connectors protruding from the rear of the main hydraulic unit under the seat of the tractor. These Parker-Pioneer hydraulic connectors were part of the “remote” 2-way hydraulic system. The remote system powered a hydraulic cylinder on a piece of trailing or pulled-type of farm equipment.
This is the system in which our Sterling Township farmer was most interested. He did not know how he would ever use the three-point hitch, since there were few three-point hitch implements on the market in 1952. the early 1950as There he ufor passing hydraulic oil from the pump on the tractor to a remote hyd nthe gdeveloped by sw stm
all the parts that on would be needed to attach the Cockshutt three-point hitch to the tractor. .
the cast-iron axle housings located on either side of the tractor are attached to the cast-iron power train housing by six 5/8 inch bolts. The retrofit hydraulic kit sold by the Farmers Union cooperative contained special longer bolts which were to replace four of these original bolts on the top of the axle housing. These four bolts on each axle housing were used to hold the main hydraulic unit under the operator’s seat. However, because these bolts were located under the running boards on the operator’s platform, our Sterling Township farmer needed to have the thick sheet metal running boards attached to the side of the power train housing trimmed with a blow torch to allow the main hydraulic unit to be properly attached to the bolts on top of the axle housing. The main hydraulic unit was fitted with a rock shaft.
ide of the unit under the seat was attached to the tractor by four of th eight bolts which bolts on the top of the Two hoses connected the pumereservoir and with two hoses which connect front of the engine on the
sunder the under the purchased in rs like tch he had aAccordingly,
the s s Although, Cockshutt This traqctorwas a
Throughout the history of North American agriculture, farENGmers have been attemnship pting to solve their own problems. Farmers have repeatedly joined together in societies and organi