Hydraulic Cylinder - wsm STW37 Workshop Manual

STW34, STW37, STW40, WSM

[5] HYDRAULIC CYLINDER

(1) Lowering Speed Adjusting
Valve
(2) Cylinder Head
(3) Relief Valve
(4) Hydraulic Cylinder
The main components of the hydraulic cylinder are shown in the figure above.
While the lift arm is rising, oil from the hydraulic pump flows into the hydraulic cylinder (4) through the control valve
(13). Then oil pushes out the piston (5).
While the lift arm is lowering, oil in the hydraulic cylinder (4) is discharged to the transmission case through the
control valve (13) by the weight of the implement. At this time, the lowering speed of the implement can be controlled
by the lowering speed adjusting valve (1) attached to the hydraulic cylinder (4).
As for the lowering speed adjusting valve (1), refer to "Type 1" in the Workshop Manual of Tractor Mechanism
(Code No. 9Y021-18200).
(5) Hydraulic Piston
(6) O-ring
(7) Back-up Ring
(8) Hydraulic Rod
(9) Hydraulic Arm
(10) Hydraulic Arm Shaft
(11) Control Arm
(12) Spool Drive Lever
(13) Control Valve
8-M16
HYDRAULIC SYSTEM
(14) P0 Port (Pump Port)
(15) P1 Port
(To Auxiliary Control Valve)
(16) P2 Port
(From Auxiliary Control Valve)
9Y1211109HYM0015US0
KiSC issued 11, 2014 A