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TM 55-1905-220-14-7
3-208. DIRECTIONAL CONTROL VALVE - MAINTENANCE INSTRUCTIONS
(Continued).
(b)  If the spool is moved to the right as shown, the "P" pressure port will connect to the "B" cylinder
port and the "A" cylinder port will connect to "T" tank.
(c)
When the spool returns to center, (solenoids de-energized), flow is blocked in all ports. It can be
seen that the function of a valve is to direct the flow of system fluid within a circuit. The valve is actually used
to direct the flow from the pump to the actuator and from the actuator to the tank or reservoir.
3-3221


 


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