FIELD: construction.
SUBSTANCE: method for control of tension in springs installed on rotary shafts, in realisation of which the first and second wrenches are used to provide for splint engagement with shaft bushing connected to at least one spring with its retention against displacement in undesirable direction, tension in spring is adjusted in spring by means of bushing rotation with the help of one of keys until according tension of spring is obtained.
EFFECT: invention will make it possible to simplify process of cylindrical springs adjustment in door installations.
23 cl, 6 dwg
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