Linkage Mechanism; Position Control - Kubota M8540 Workshop Manual

M8540, M9540, WSM

[3] LINKAGE MECHANISM

(1) Position Control

Position control is a linkage mechanism to raise or lower the implement attached to the tractor in proportion to the
movement of the position control lever.
The implement can be positioned at any height by moving the position control lever. Fine position adjustment is
also easy.
Lift
(1) Position Control Lever
(2) Position Lever Shaft 1
(3) Position Link 1
(4) Position Link 2
1. When the position control lever (1) is moved to the "LIFT" position, the position lever shaft 1 (2) and position link
1 (3) rotates and press down the position link 2 (4).
The position lever shaft 2 (5) rotates and pushes the spool (6) by the spool drive lever (7), opening the "LIFT"
circuit.
2. When the lift arm (11) moves upward, position feedback shaft (8) rotates via position feedback rod (10) and pulls
the spool (6) by the spool drive lever (7).
The lift arm stops when the spool (6) returns to the neutral position (C).
(5) Position Lever Shaft 2
(6) Spool
(7) Spool Drive Lever (Position)
(8) Position Feedback Shaft
(9) Position Feedback Lever
(10) Position Feedback Rod
(11) Lift Arm
8-M9
HYDRAULIC SYSTEM
A : LIFT
B : DOWN
C : Neutral Position
KiSC issued 09, 2008 A