1) NEUTRAL 10 RH LH LS 3 S SX P 5 Pst T LS Return line 18 Return line Return line B1 E/G L L1 S1 17 740F5SE02 The steering wheel is not being operated so control spool (G) does not move. The oil from the pump enters port P of the priority valve in main control valve and the inlet pressure oil moves the spool (D). Almost all of pump flow goes to the loader system and partly flows into the hydraulic tank (17) through the spool (G). 5-3 D )( )( Priority valve L R G T 1