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Old 03-17-2016, 08:31 PM   #1
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Slide out operation

On our 2015 39MB there are 2 slide out control switches. One controls the bedroom slide and the other one controls the kitchen and dining table slides. In regards to the kitchen/dining slides. When they operate one side goes out first then the other side. I'm assuming its based on the least resistant slide goes first and when it hits the end the other side moves. Assuming.

Sometimes while traveling I would just like to put out one slide, either the kitchen or the dining slide. Is this possible? Why would they not just put 3 separate switches? I could not imagine that it would cost that much more to do that.

Is my system able to move the slides independently or is it just what it is?
I read somewhere on the forum about isolating the slide outs. But I don't think it was my model, I think it was an FL model being discussed.

Curious to find out if its possible or if mine can do this and I just need to be shown how.
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Old 03-17-2016, 08:38 PM   #2
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You can isolate the slides. You should have 2 valves in the front cabinet by the pump that are open. If you close either one, that slide won't operate.

To make them operate on separate switches, you need a manifold block and the hydraulic fluid lines have to go out to and return from each slide. It's more expensive to do that way and I've only seen a few rare RVs do that for hydraulic slides. Electric slides on the other hand (like your living room) can be controlled by independent switches, and even from multiple locations.
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Old 03-17-2016, 08:44 PM   #3
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In the front of your coach where the batteries are and generators go, there is your hydraulic pump for the hydraulically powered slide out rams/ cylinders. On the front area of the pump you should see 2 small knobs. These knobs are mounted on a block with hoses attached. On mine turning the right one clockwise and closing the valve off, only allows the dining slide out to operate. The left valve is for the dining slide out. Looking at the knobs, the right one controls the right slide, and the left one controls the left slide. Try closing one and see if yours are hooked up properly.

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Old 03-17-2016, 08:45 PM   #4
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So I find the valve that controls the dining slide and close it only the kitchen slide will operate? Will that hurt anything in the hyd circuit or is there anything that I need to be aware of while doing this?
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Old 03-17-2016, 08:55 PM   #5
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Correct - won't hurt a thing. I use mine quite a bit so the curb slide doesn't open into my bushes.

I don't think it would hurt much if you left both valves closed, but I wouldn't try it anyway.
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Old 03-17-2016, 09:05 PM   #6
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Thanks you guys for the info. I'm going to give it a try.
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Old 03-17-2016, 09:23 PM   #7
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The valves look like small round black plastic wheels laying flat. I have the 31SL and my right valve also operates the kitchen slide and the left operates the dining slide. My Hitchhiker had independent switches for each slide and I have seen recently some manufacturers advertising such as a step up from others. I will never purchase another fifth wheel without independent slides but then, I hope this Redwood will be my last.
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Old 03-17-2016, 09:24 PM   #8
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Just listen for the pump to make a cavitation noise when the room is fully extended or retracted. Running too long at the end of the cycles could damage the pump if you try to run it way too long too many times.

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Old 03-17-2016, 10:06 PM   #9
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Good tip Chris thanks.
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Old 03-17-2016, 11:59 PM   #10
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Quote:
Originally Posted by r time soon View Post
In the front of your coach where the batteries are and generators go, there is your hydraulic pump for the hydraulically powered slide out rams/ cylinders. On the front area of the pump you should see 2 small knobs. These knobs are mounted on a block with hoses attached. On mine turning the right one clockwise and closing the valve off, only allows the dining slide out to operate. The left valve is for the dining slide out. Looking at the knobs, the right one controls the right slide, and the left one controls the left slide. Try closing one and see if yours are hooked up properly.

Chris
My factory contact/New Friend - Randy - showed me these 2 knobs. Only thing to add is: If both slides are "in", then might have to just bump "out" just a bit to relieve some pressure so you can turn the knobs.
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Old 03-18-2016, 12:03 AM   #11
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Quote:
Originally Posted by 830hvacman View Post
My factory contact/New Friend - Randy - showed me these 2 knobs. Only thing to add is: If both slides are "in", then might have to just bump "out" just a bit to relieve some pressure so you can turn the knobs.
Very good tip - I remember that. They plain won't budge if under a lot of pressure.
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Old 03-18-2016, 04:01 AM   #12
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Does anyone know if there is a way or has anyone modified the manifold with say 2 - 12vdc 5 gpm solinoid hydraforce valves. My idea is to add the 2 - 12v valves inline where the 2 knobs are on the manifold. Then run wires for 2 switches to where the main slide switches are. That way you could do A or B slide separately or at the same time from inside the coach. Does this sound doable??
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Old 03-18-2016, 02:14 PM   #13
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It should work exactly as you describe. It wouldn't quite be the same as being able to control each slide independently with the switches, but you could use the switches to operate A, B, or both as you say.
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Old 03-18-2016, 03:43 PM   #14
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Should work, provided those solinoids can stand the pressure. Remember that a fairly high pressure system
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