TM 5-3805-291-23-1
THEORY OF OPERATION - CONTINUED
0003 00
BRAKE AND HYDRAULIC FAN SYSTEM - CONTINUED
k.
Pump Upstroke.
427-C1755
(1)
When hydraulic system requires an increase in oil flow, a signal is sent to load sensing port.
(2)
When signal is sent to load sensing port, pressure at load sensing port is increased. Combination of margin
spring force and increased pressure at load sensing port will overcome oil pressure in flow compensator
spool cavity. Flow compensator spool will move. This will allow oil behind actuator piston to flow through
signal passage.
0003 00-76