5.3 Releasing
Firstly, pull out the snap-pin (item 41), safety-pin (item 11), snap-pin (item 42) and safe-
ty-pin (item 20) in the order named. (see figure 5.3.1 ) and then push the handle (item 19)
down by using hands or feet.
When the connect handle near after bench is pushed down, the cam is turned by the con-
nect and the hook is then made free. Finally the hook is turned and released. (see figure
5.3.2)
Fig. 5.3.1 Release principle of the hook unit
Fig. 5.3.2 Release principle of the hook unit
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