Dual arm unit

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Landlord from Fairfax, Virginia

Jan 7, 2026 9:21 am

We need to identify the parts so we can order them.

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2 Replies

Casey from SWISCO

Jan 12, 2026 11:56 am

Hello,

Take a look at the 39-187 and 39-188 operators. These appear to match the zig-zag shape of your gear arm, but please confirm. Review the specifications and see if they match your original assembly.

Alternate measurement of arm

If you need new hinges, the 36-048 set would be a good place to start. Take a look and see if the 10" base of this 2-bar hinge set matches yours. Thanks for posting!

Detail of 36-048