6-12
3A/4A
AUX
3B/4B
22B7HS16
Pressure is limited by the secondary main relief valve.
AUXILIARY SECTIONS
Operation
Many different functions can be controlled by the auxiliary spool sections. In general, one work
port is pressurized by high pressure oil from the parallel passage, past the load check valve, past
the metering notches, and to the cylinder. Simultaneously, oil from the other work port is directed
across the spool metering notches to tank.
6)
(1)
3A/4A
AUX
3B/4B
22B7HS15