TM 5-3895-382-24FLOAT PositionLeveling Blade Control Valve - Float Position.(1) Detent ball and spring. (2) Centering spring. (3) Passage to rod end of cylinder. (4) Outlet passage. (5) Passage to head end of cylinder. (6)Spool. (8) Inlet passage. (10) Passage. (11) Passage. (12) Detent sleeve.When spool (6) is shifted from the HOLD position to theFLOAT position the spool is moved all the way to the left.Centering spring (2) is fully compressed, and detent bails andsprings (1) are located in the groove of detent sleeve (12).Centering spring (2) does not have enough force to pull thedetent balls past the groove in the detent sleeve. Spool (6) willbe held in the FLOAT position until the operator moves theblade control lever out of the FLOAT position.With the control valve in the FLOAT position, spool (2) blockspressure oil in inlet passage (8) and internal passages (10) and(11). Cylinder rod end passage (3) and cylinder head endpassage (5) are open to outlet passage (4). Since the cylinderrod and head ends are open to tank, the blade will follow theshape of the ground.15-10
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