Patent ID: 8708088

Claim:
An adjustable control arm assembly for a hydrostatic pump having a pivotal control input shaft, said assembly comprising: a first arm connected to said pump control input shaft to provide a pivotal input; a second arm having a recess configured to receive the first arm and further including at least one threaded bore, wherein the second arm is connected to an operator displacement input; a first mechanism interconnecting said first and second arms to provide a selectively adjustable pivotal relationship between said first and second arms, said first mechanism including an eccentric element having a head, a first annular land, a second annular land, and a groove located between the first annular land and the second annular land, and an eccentric pin which extends axially from said first mechanism, wherein said first mechanism is configured such that when the first arm and the second arm are engaged, the eccentric element is journaled to the second arm and the eccentric pin is received in a slot in the first arm; and a second mechanism for adjusting the throw of said control arm assembly including a threaded shaft configured to be received within the at least one threaded bore, wherein the threaded shaft sets a throw of the first and second arms.