Janicholson
Well-known Member
The hitch shown here is on a 1948 MD. All parts were managed by me as the professor in a CAD (AutoCad) classat Montana State University Northern, Havre Montana.
The side plate mounts were created from an axle housing gasket. that was digitized, and printed full size then traced onto 5/8 plate.
The arms were made from 3/4"X 2-1/2" A36 structural steel with ball sockets in both ends.
The front attachment point was mid positioned where the drawbar was mounted, then braced to the side of the casting with 1/2" strap.
The cylinder is 12" X 4" two way. It is pivoted on the top with 2 connecting rod big end journals and inserts on polished shaft.
The lower end cylinder mount was what the students were designing when the photos were taken. (the cylinder was rotated forward at the bottom much more than in the image.)
The lower mount bolted to the side plates to allow assembly.
The lift arms are made from steering linkage from a Peterbuilt, including the right one that is a steering cylinder. It allows power tilt that is very handy for many purposes like a back blade!
The Cross shaft is 2" Schedule 80 pipe with the cross bar 2 inch solid with machined ends for bushings.
The hydraulic is a stacked 2 way valve with float for the lift cylinder.
Jim
The side plate mounts were created from an axle housing gasket. that was digitized, and printed full size then traced onto 5/8 plate.
The arms were made from 3/4"X 2-1/2" A36 structural steel with ball sockets in both ends.
The front attachment point was mid positioned where the drawbar was mounted, then braced to the side of the casting with 1/2" strap.
The cylinder is 12" X 4" two way. It is pivoted on the top with 2 connecting rod big end journals and inserts on polished shaft.
The lower end cylinder mount was what the students were designing when the photos were taken. (the cylinder was rotated forward at the bottom much more than in the image.)
The lower mount bolted to the side plates to allow assembly.
The lift arms are made from steering linkage from a Peterbuilt, including the right one that is a steering cylinder. It allows power tilt that is very handy for many purposes like a back blade!
The Cross shaft is 2" Schedule 80 pipe with the cross bar 2 inch solid with machined ends for bushings.
The hydraulic is a stacked 2 way valve with float for the lift cylinder.
Jim