FARMTECH FDD 3000, Руководство пользователя

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A.4.5. Clutch Mechanisms
A.4.5.1. Clutch
The models with fertilizer (seed clutch and fertilizer
clutch) have 2 and the models without fertilizer (only
seed clutch) have 1 clutch mechanism. (on the top)
The primary duty of the clutch mechanisms is to stop
the seed and fertilizer flow when the coulters are
disengaged from the soil.
Conversely, they enable seed and fertilizer flow when
the coulters are switched to seeding position.
As it can be seen from this function, clutch mechanism is
the part that transfers the motion from the wheels to the
variable-speed transmission conditionally. However, in
doing so, it is capable of cutting the transfer when
necessary (e.g. when the coulters are lifted).
The clutching point can be changed as desired based
on the coulters’ position in your grain drill.
Seed
Clutch Fertilizer
Clutch