Spool in neutral Spool in neutral 3) (1) BOOM SECTION OPERATION BOOM SECTION OPERATION B2 A2 b2 a2 T B2 A2 Hydraulic circuit 76096WE51 When the boom spool is in neutral position, oil from the pump will be blocked. Then, the pumps are at low pressure stand by. 6-26 P a2 T P a1 A1 B1 LS A2 B2 pst ump t Up Floating Down Floating own m D Roll back Bucke Boo b1 A2 B2 b2