Figure 1 - Weatherhead Variable Displacement Pump

introduction

The Weatherhead Variable Delivery Hydraulic Pump de-

scribed in this manual is a positive displacement, in-line,

axial piston type unit. Only two rotating parts are asso-

ciated with the principal functional mechanism - the drive

shaft and the cam. Fluid is pumped by seven pistons

reciprocating in a non-rotating cylinder block. Individual

discharge check valves are connected to each pumping

cylinder. A wide range of control options is offered.

(See

page

C-5

for

information.

)

Figure 1 - Weatherhead Variable Displacement Pump

C-3