So several years ago I was interested in adding the traction control that was incorporated in the 2003+ coaches. Would just drive me crazy being stuck on the wet grass or for that mater anywhere.
A. Considered adding the entire system,
B locking differential,
C live with what I have.
During a post What's this bolt on brake pod? (https://www.foreforums.com/index.php?topic=45789.0) the light bulb although dim cam on. Doesnt need to be an automatic system. Could use several solenoids to both isolate and vent spring cans and/or also add a preset reduced air to primary brakes or a combination of one or the other to restrict wheel spin on one side or another. Very simple solenoids to control air and I'm thinking just a momentary switch that would have to be physically held into position during event. Would also use two more of my spare wires. When switch release all would be restored to normal. Possibly a guarded switch may also be a nice touch? We all set the parking brake when parked, but during application it is using the primary brake system at reduced levels and having higher resistance may be needed for it to function and be enough to supplement being stuck. As soon as I figure out solenoids and switches Ill update. Ive never needed, but having and never using would give me assurance.
Downsides issues I can see
Should not be stuck in the first place
Caution should be used to prevent coach overstressing and damage
Use two spare wires
Upside
Low cost
Most of the needed parts are there already
Low weight mod
Automatically resets to normal configuration when done using
Not climbing under coach to lock a spring brake.
Not calling a tow service
Parts
Two 3way Control solenoids
One momentary single pull double throw control switch, possibly with matching guard
Fittings to install in brake lines x 4
Possibly a warning buzzer and light
Possibly two pressure regulators
Scott
Scott,
Make absolutely certain that the "default" is for the system back to normal operation.
You are entering a "brave new world" here!
I am with you on the "don't get stuck in the first place" mantra.
Yes relaxed solenoids would be normal configuration
I'll be waiting for your completion Scott. I'm getting behind on your projects, moving trans cooler and radiator support.
Me too. Close to finishing Bronco, will free up some more coach time
I'm with Mr. Wolfe on this one. Modifying the air brake system is a road I certainly wouldn't travel.
And would add that you bought the wrong RV for real off road camping anyway.
I never said anything about off-road. Just dont want to get stuck in the grass next to the house in Michigan. Foretravel modified their design and made improvements and mistakes many times. Thanks for your valued opinion. I almost went the Detroit locker route, but feel it would be unsafe in slippery icy conditions. Yes I agree you shouldn't ever take your coach off of the pavement, it was not designed for that. Mine however was purchased to be used. FWIW they operate very smoothly on dirt roads primped for semi's and trailers without traction control. I also recommend that you don't deviate from DOT requirements. Always stay within the rules. BUT Innovative is inevitable
I wish we had this on our coaches or something as I was in a campground in MN after a rain and the spots had little gravel and lots of grass. I was suppose to back out but there was a slight hill and with the rain there was no way I was going to get thru that grass and up the hill. I jus 'twas spinning so I decided to go forward. You do dig some impressive trenches too as I pulled forward to get out.
Like a tractor or dune buggy turn brakes.
Maybe you could use the parking system with two override buttons to release the traction side
That wouldn't have the same braking power but would be much simpler to modify and might be enough to get out of trouble.
My second line was mostly tongue in cheek.
If parking on the grass next to the house or anywhere soft. Perhaps a few pieces of pierced metal matting, like what the C B's used for runways in WWII would work?