FIELD: construction.
SUBSTANCE: method to control tension of springs installed on rotary shafts, in realisation of which the first and second spanner wrenches to provide for splint engagement with shaft bushing, with retention of bush against displacement in undesirable direction. Bush is mechanically connected to at least one spring, axial fixation device is arranged, axial fixation is provided on at least one of specified spanner wrenches to bush, providing thus axial fixing engagement of spanner wrenches to bush, tension is controlled in at least one spring by means of rotation of specified bush with the help of at least one of spanner wrenches until according tension of spring is achieved.
EFFECT: invention will make it possible to simplify process of cylindrical springs adjustment in door installations.
26 cl, 11 dwg
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