TM 5-3895-383-24
Illustration 12
Leveling Blade Hydraulic System in the HOLD position
(3) Passage to rod end d cylinder. (4) Outlet passage. (5)
Passage to head end d cylinder. (6) Spool. (7) Relief valve. (8)
Inlet passage. (9) Valve body. (10) Leveling blade cylinder.
(11) Blocked passage. (12) Line from gear pump. (13) Line to
charge circuit.
In the HOLD position, spool (6) stops the pressure oil to inlet
passage (3) and (5). The oil in passage (3) and oil in passage
(5) is blocked. This holds the blade in position.
Centering spring (2) holds spool (6) in this position. Pressure
oil from inlet passage (8) flows across the spool to outlet
passage (4).
RAISE Position
Illustration 13
Leveling Blade Control Valve in RAISE
(1) Detent. (2) Centering springs. (3) Passage to rod end of
cylinder. (4) Outlet passage. (5) Passage to head end of
cylinder. (6) Spool. (7) Relief valve. (8) Inlet passage. (9)
Valve body.
Illustration 14
Leveling Blade Hydraulic System in the RAISE position
(3) Passage to rod end of cylinder. (4) Outlet passage. (5)
Passage to head end of cylinder. (6) Spool. (7) Relief valve. (8)
Inlet passage. (9) Valve body. (10) Leveling blade cylinder.
(11) Blocked passage. (12) Line from gear pump. (13) Line to
charge circuit.
13-12
