KUHN EL 131, Руководство по сборке и эксплуатации, Страница: 27 / 48

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The 3-point linkage with hydraulic lift cylinders (V) reduces the overhang of a combination ( EL 131 - seeder, for
example) by lifting back the combined machine over the harrow (see photo 26 on page 26).
This transfer of mass makes it possible to gain up to 25 % of the tractor lift capacity.
a) Assembly :
The hydraulic lift linkage is fitted to the EL 131 by means of pins (Q) and (U) (photo 24).
Hydraulic cylinders (V) necessitate at least one single acting valve on the tractor.
Attach hydraulic hoses (E) to cross bar (T) by means of hose clamps (N) and connect hoses to the cylinders
as shown in photo 24.
To allow adaptation of Category 1 and Category 2 implements, hooks (A) and spacers (B) can be assembled
in different ways : either to the inside or to the outside of rear frame (C) to obtain desired span.
The hooks (A) can also be adjusted in height (two positions). The locks (D) are used to secure the secondary
implement's lower link pins inside hooks (A) (photo 24, page 24 and fig. 25 page 25).
In order to reduce combination overhang as much as possible, the 3-point frame lower linkage hooks (A) can be
adjusted horizontally through a range of 22 cm (8,5") (photo 24).
Depending upon application, the standard position (as set in factory) can be changed. The alternative positions
can be achieved as follows :
- towards the rear : by combining the two rear positions of linkage arm (W) with the four holes (U) of arm (S)
(photo 24)
- towards the front : by first moving rear frame (C) into position (Y) and by combining the two front positions
of linkage arm (W) with the four holes (U) of arm (S) (photo 24).
Note : In the 2 front positions (Y) of linkage arm (W), the 2 plates (Z) must be removed.