Bob from SWISCO responded:
April 29, 2019
Hi Andre. Good question. The 15-148 Bumper sits between the pivot shoe, such as the 15-111 or 15-191, and the coil support holding the Series 160 Coil Spring(s), such as our 15-150S. Every Coil Balance system has unique idiosyncrasies in design; in this case, the 15-148 just acts as a literal 'bumper' between the pivot shoe and coil spring & housing, enabling support and so that the coil springs don't slide too hard into the pivot shoes during window operation. |
Tom from SWISCO responded:
April 30, 2019
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Tom from SWISCO responded:
April 30, 2019
My pleasure! Let me know if you have any more questions and we'll do our best to help. |