wsm L503 Workshop Manual page 429

L3130 · L3430 · L3830 · L4630 · L5030, WSM
8. POSITION
LINKAGE
(1) Position Control Lever
(2) Draft Control Lever
(3) Draft Control Link 3
(4) Draft Control Rod
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.
CONTROL
(5) Top Link Bracket
(6) Torsion Bar
(7) Draft Control Link 4
(8) Draft Control Link 1
WITH DRAFT
(9) Feedback Rod
(10) Draft Control Link 2
(11) Roller
(12) Arm 2
8-M14
HYDRAULIC SYSTEM
CONTROL
(13) Return Spring
(14) Arm 1
(15) Position Control Link
KiSC issued 02, 2007 A