The living room slide on our 07 Winnebago Voyage consists of two screw driven rams powered by electric motors that are digitally linked together to allow the slide to go in and out evenly. This system was made by Kwikee (Kwikee Digi-Sync) and has preformed well thousands of times, until a couple of weeks ago
The forward drive simply stopped moving although the motor could be heard running.
I am a retired mechanic and do repairs and maintenance myself, so today I removed the forward drive ram to diagnose and order parts. This system is fairly easy to service and access although 4 rivets had to be removed to slide the ram out (it comes out on the slide side of the coach). I have been doing weird stuff like this all my life, LOL
You proceed at your own risk
The problem is a plastic nut that the Acme Screw runs in. The nut is held inside the ram with two clevis pins (both badly bent). There is also a plastic guide to support the non driven end of the Acme Screw. The slide box seems to be properly centered in the side wall and all of the rollers and ram bushings are in excellent condition. When the slide ram broke I had to push the slide in by hand and it was easy to move. I also braced the slide in because it relies on the ram screw and nut to hold it in. There of course was an out of sync code when the nut broke because the forward Acme Screw was spinning freely while the rear ram screw was moving the slide.
I suspect that I simply have too much heavy stuff in the slides basement compartments (they come in and out with the slide). I saw nothing that would cause this plastic sacrificial nut to shatter. I do realize that plastic tends to become brittle with age.
I will order parts and reassemble when they arrive. The motor and gear box were disassembled, inspected, and bench tested, all looks good there.
The pictures may be helpful to others with this type of system. I will post updates as this repair progresses and will not quit until we have a fully functional slide once again. Although while traveling in the RV this did bring my wife and I about 30 inches closer together, but now we are back home so that is over