© 2019 THE OILGEAR COMPANY - ALL RIGHTS RESERVED
Bulletin 948675A
9
Bulletin 948675A
CONTROL SERVICE MANUAL
RAISING PRESSURE - LOADING
Pump outlet pressure is ported to the control
through Port “OP 1” to the control spool
(305)
and
to the bias control piston
(303).
Outlet pressure is
also transmitted through orifice Port “OP 2,”
allowing the pressure acting on either end of the
control spool
(305)
to be equal. In this condition,
the control spool
(305)
is held in position only by
the spring
(328)
.
The outlet pressure through Port “OP 2” is further
transmitted through Port “OP 3” and Port “OP 4” to
the adjustable pressure compensator relief valve.
