Acording to my '77 manual there was a Vacuum Hose connetion to the towviehicle
which was controleed by a under the dash controller. I saw one in DoverDelaware
on a 31 foot yacht. I don't know of anyone who is using this systemI think
Tapping into the vacume or hydaulic systems is not advised as it voidsmost
warrantee's these days. My '77 has been convewrted to electric andI plan to check
them out as soon as things dry out here in Mass. Dave Newell

Jim Dunmyer wrote:

> What actuates those brakes, do they use a surge coupler? (my wife'shorse
> trailer had one of those) Repair/rebuild of the brake assemblieswould be just
> like on the rear of a car, or so I'd think. If they use a surge coupler,the
> master cylinder is pretty conventional, even simpler than today'sdual braking
> systems.
>
> It's apparently possible to change out the backing plates and convertto
> electric brakes if you wish. They're probably more reliable in thelong run.
>
> <<Jim>>
>
> Conrad & Tricia Holsomback wrote:
>
> > Help again, please.
> > We have no experience with hydraulic vac brakes. What do we needto know?
> >
> > Conrad & Tricia Holsomback
> > mailto:triconholsomback@greenwood.net
>
> --
>
> <<http://www.oldengine.org/members/jdunmyer>>
> <<jdunmyer@toltbbs.com>>
> <<lower SE Michigan, USA>>
> <<mailto:jdunmyer@toltbbs.com>>