8-M14
L3130 · L3430 · L3830 · L4630 · L5030, WSM
HYDRAULIC SYSTEM
8. POSITION CONTROL WITH DRAFT CONTROL
LINKAGE
Draft control is a system which maintains a constant traction load, and is suited for the work which needs heavy
traction load such as plowing.
The implement is automatically raised when its traction load is increased, and lowers when the traction load is
decreased. By maintaining a constant load level, it prevents the tractor from slipping and being loaded excessively.
The setting traction load can be adjusted by changing the position of the draft control lever.
The draft control system uses the same control valve as the position control system. Therefore it is possible to use
the mixed control. The traction load applied to the tractor is sensed and is fed back to the control valve by means of
the other linkage mechanism.
(1) Position Control Lever
(2) Draft Control Lever
(3) Draft Control Link 3
(4) Draft Control Rod
(5) Top Link Bracket
(6) Torsion Bar
(7) Draft Control Link 4
(8) Draft Control Link 1
(9) Feedback Rod
(10) Draft Control Link 2
(11) Roller
(12) Arm 2
(13) Return Spring
(14) Arm 1
(15) Position Control Link
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