Longbridge BN4 Top Frame Question

["Mick Vander Ploeg" <mvanderploeg@nc.rr.com>]

I'm getting ready to install the top frame on my BN4, & have a simple yet
perplexing (to me) question.  I know the bottom of the frame is held to the
body by slides, but what holds the top of the frame up while the top (hood) is
in use?  What would keep the frame from just flopping over, is it just the
pressure from the top (hood) itself?

Thanks

Mick Vander Ploeg