Installation Instructions

B1700·B2100·B2400 WSM,11770
B177F809
8 HYDRAU Lie SYSTEM
II1II Down
When
the control lever is moved to DOWN
position, the spool (4) is move to the left, and the
poppet 2
(2) is also move to the left by the lever (1).
Oil in the hydraulic cylinder. is forced out to the
transmission case through the T2 port by the weight
ofthe implement, causing the implement to lower.
Oil forced
into the control valve through the P
port
pushes open the unload poppet (5) and returns
to the transmission case through the T1 port.
P: Pump Port
T1, T2, T3: Tank Port
c:
Cylinder Port
(1)
Lever
(4)
Spool
(2)
Poppet 2
(5)
Unload Poppet
(3)
Poppet 1
[5] FEEDBACK LINKAGE FOR POSITION CONTROL
B177F810
(1) Lift Arm RH
(2) Feedback Rod
(3) Control Lever Shaft
(4) Position Control Lever
(5) Feedback Arm
(6) Feedback Arm Shaft
(7) Connecting Link
(8) Control Lever Arm
(9) Lever
When the position control lever (4) moved to
rearward to lift the implement, the spool of the
position control valve is pushed in to form a raising
circuit
by the motions of control lever arm (8), control
lever shaft (3), connecting link
(7) and the lever (9).
And after the lift arm (1) moves upward, the spool is
pulled out and return to form a neutral circuit by the
motions
of feedback rod (2), feedback arm (5),
feedback arm shaft
(6), connecting link (7) and the
lever
(9).
As a result,the implement height can be easily
determined in proportion
to the set position of the
position control lever (4).
8-M5