Paul from SWISCO responded:
November 13, 2017
Thanks for writing in. Your balance looks very similar to our S390-37. Please compare the balance ends to ensure compatibility. Given your stamped marking of "36DS Rn42," that would best fit under our 3665 option. However, the balance manufacturer no longer makes springs for exact sash weight. To confirm whether or not our 3665 option would be a good option for you, you would need to weigh your sash to see if it falls in our spring weight range. Get back to us and let us know how you made out.
|