17
2.3.
Design and operating principle of the big bag fertiliser suspended loader
The general design of the big-bag fertiliser suspended loader is shown in fig. 6.
Fig. 3 Design of the arm.
1 - support frame; 2 - upper arm; 3 - extended arm; 4 - support assembly; 5 - extension
actuator; 6 - lifting actuator; 7 - warning plate with lamp.
(1) is a support frame designed as an open welded structure made of sections and high-grade
steel sheets. The upper part of the frame features the mounting opening for the upper arm. The
middle part has eyes for the upper arm lifting actuator. The frame can be attached to a three
point hitch on a tractor and on its other end, it allows coupling with a spreader. The compatible