i haven't read everything here. but i understand if one cable snaps ok your fine , one corner will sag. but what if main cable pulling all four cables snaps> yip kaboom ! nobody has mentioned that. here. i still don't know if there is some safety feature for that on my 2008 coleman fleetwood niagra or not. does anyone know, seems i saw a video telling me those supports on the outside some people add aren't necessary on my model.
The Coleman lift system does not work like Goshen Lift system on most other trailers (except Jayco has their own). There are 4 cables that run down to a bar called the wiffle tree. The bar on the wiffle tree rides along a long threaded shank. When you crank up, you are turning that shank that pulls the bar and all 4 cables up. If a cable snaps, that corner will sag, but the other 3 will work fine. You can still lower it without any issues.
The crank that drives the threaded shank is direct connection (geared). If it is were to snap, the shaft will not spin freely, there is a "paw" that clicks against the gear teeth.
Although it is theoretically possible, to snap all 4 cables or snap the paw gear, having the roof coming flying down is pretty unheard off in the Coleman/Fleetwood design.
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