Transmission lift device

A pneumatic transmission lift upon which a plurality of automobile transmissions of various size, make and model may be attached and raised to a level to accommodate the repair, maintenance and rebuilding of the automobile transmissions, the transmission lift comprising:

• A. a main post having an upper end, a plurality of sides with at least two opposing sides, a lower end, an interior longitudinal cavity, an interior surface, an outer surface, two longitudinal crossbar channels in the two opposing sides, longitudinally spaced locking lugs in another side and a base plate attached to the lower end;
• B. a piston air ram, further comprising
• 1. an air cylinder assembly having an upper portion, an inner cavity, a lower portion,
• and an air cylinder base, having an air input receiver and an air access channel, the air cylinder base attaching to the lower portion of the air cylinder assembly with the air access channel enabling a flow of air through the air input receiver, through the air access channel into the inner cavity,
• 2. a ram assembly, having
• a. an end cap having an upper surface including a plurality of threaded crossbar anchor holes, connecting to
• b. an upper end of a ram arm, the ram arm further including a lower end from which extends a threaded piston mounting stud, and
• 3. a piston assembly, including
• a. a piston having an upper surface, a recess ram receiver area, a central mounting hole, an outer edge and a lower surface,
• b. a wear band having an inner surface and an outer surface,
• c. a rubber seal cup, having an upper surface, and a central mounting hole, wherein the piston assembly is assembled by forcing the wear band upon the piston, inserting the threaded piston mounting stud through the central mounting hole of the piston with the upper surface of the piston towards the ram arm with the lower end of the ram arm seated within the recessed ram receiver area, inserting the central mounting hole of the rubber seal cup onto the threaded piston mounting stud with the upper surface of the rubber seal cup in contact with the lower surface of the piston and tightening an internally threaded mounting nut on the threaded piston mounting stud, firmly attaching the piston assembly to the ram assembly, the assembled ram assembly and the piston assembly placed within the air cylinder assembly;
• C. a crossbar including an upper surface, two ends having internally threaded slider bolt holes, a lower surface, a plurality of smooth bore machine bolt holes from the upper surface to the lower surface, through which at least two machine bolts are inserted, attaching the crossbar to the end cap, the machine bolts threaded and tightened into the plurality of threaded crossbar holes in the end cap;
• D. a slider assembly including a frame member having an equal number of sides as the main post, conforming in shape to the main post, each side of the frame member having in internal surface lined with replaceable wear pads, the frame member further including slider bolt holes and an external surface to which is attached at least one outer channel, having a flat outer surface containing crossbar machine bolt access holes and a multiplicity of clamp adapter mounting holes to which the clamp adapter is attached, the slider assembly attaching to the two ends of the crossbar extending through the longitudinal crossbar channels of the main post, by the insertion and tightening of at least two crossbar machine bolts through the crossbar machine bolt access holes, through the slider bolt holes, into the internally threaded slider bolt holes;
• E. a slider locking mechanism having a means of locking the slider assembly to the longitudinally spaced locking lugs along the main post;
• and
• F. air supply assembly, including an air supply line attached to the air input receiver of the air cylinder base, the air supply line further attached to an air controller having an air chuck attachment for a compressed air line, the air controller regulating the air supply to and from the piston air ram, thus controlling the amount of air to and from the piston air ram, raising and lowering the slider assembly along the main post.