If the device shown in the illustration is being used to control the output of an axial piston pump, when part "A" is moved to the right, then part "B" __________. Illustration GS-0039

Correct Answer: Option B — will move to the left, and "C" will move to the right, but will lag behind the movement of "A"

In this axial piston pump control mechanism, the linkage acts as a follow-up system. Moving part A shifts the control valve, causing the servo piston (B) to move in the opposite direction to restore equilibrium. Part C follows the movement of B, but with a mechanical lag.