[Archived]

I can only speak for the two slide out coaches I have had. The slides would not operate unless the coach was in the travel or road mode. Only after extending the slides were you suppose to level the coach.

Fast idle, above 96lbs aux air pressure, and window open was also in the procedure.

Hope this helps

[Thomas]

Just wondering…why would you need to have the window open?

[AL]

Ditto on opening slides in the road or driving position. Level after the slides have extended.

The reason for opening a window or the the door is because when the slides are in motion, in or out a huge amount of air pressure change occurs unless the coach has some way of allowing air to enter or escape.

In fact in my Liberty the air flow is so great when I sit in the driver’s seat to close the front slide I need my seat belt on or I will be blown out of the small toll window.

[Archived]

Jon, are you sure you would fit thru the small toll window. I would be hard pressed to get thru the toll window without about 1000 lbs of pressure and a lot of grease.

[Archived]

Maybe I was lying a little.

[Bryan]

It would be interesting to know why Prevost prefers slide extension with the coach in the road or driving position.

If I theorize and conclude that is the condition that prevents the coach shell from twisting or racking that would make sense. It seems that way because I was told as part of the cycle of slide movement the tag axle air is exhausted to stress the shell in a specific manner to pervent binding.

But I would be surprised if our coach chassis is twisting or racking such to bind the slide. I have supported the coach on jack stands for years now when I back in the garage primarily because if I decide to get under it and look at something or work on it I can get down in the pit without fear of it dropping. So with it on two stands at the rear and front it is sitting down on all four when I let the air from the suspension. I do that because the tires don’t tend to flat spot on extended stays in the garage.

But if I want to raise the coach with a jack, I can do so at any one corner and the coach will rise an equal amount off the opposite jack stand suggesting to me the chassis is not twisting at all. But it doesn’t matter what I think. I am still operating the slides the way the book says to.

[Archived]

Thanks for the replies and explanations. I have and will continue to operate the slides as described in the manual and was instructed when I purchased it.

[Archived]

OT but are you the Sammy Swindle of the Sprint cars series I see you are from Tuscaloosa Alabama if so I watched you race in Tulsa before

good luck

[Archived]

Sorry for the delay in my response. No I am not the Sprint car driver but get asked that question all the time. I actually got really quick service at a Ford dealership several years ago in North Carolina because of the name.

[Archived]

Sammy

I just bought an 04 Marathon, the slides should be opened with engine on without leveling the coach, level the coach after the slides are out. that is Marathon recomendations.

Hisham

[Archived]

Back when we had our 2002 XL II one slide this is what were told by Nathan Parker at Mira Loma

In travel mode, the bus shell is “charged” (not relaxed) This tension is created by the tag being aired up. The situation makes it difficult for the salon slide to move. Likewise, if you level the coach before slide room extension, this leveling effort further stiffens things. So, before slide extension the shell needs to relax as drapes over the steer and drive axles so chassis is unsprung. This also allows the complete mechanicals of slide operation perform smoothly so all hard parts line up. On our Country Coach 45 XL w/rivets two slide we had befor the XLII one slide we had to manually dump the tag, which in newer coaches like the XLII is done automatically when activating slideroom mechanism. The shell naturally relaxes with tag dumped allowing smooth operation of salon slide since it has little support from the axles being mid body and large. This relaxed or charged position seems to be less critical for the bedroom slide possibly because its smaller and sit over the rear axles Then, as an aid to slide extend or retraction a window, usually the toll window, or the entry door needs to be open to help displaced air escape in or out as rooms move because the shell is fairly air tight. All these steps are completely opposite of fiberglass Class A motorhome which need to be leveled first because the slideroom sits on the chassis platform which like a bridge from the floor down. The whole Monoque Prevost shell is the chassis and the slideroom is actually an invading hole chopped into the Side.

H

[Clifford]

On slide coaches with pins (later models are called pinless, but they actually have a single pin in the floor) the fit of the pins is so accurate and tight that engaging and disengaging pins requires the chassis to be without a twist or distortion. If the chassis is distorted the pins will not be properly aligned with the holes in the slide.

Good explaination from Jim.

[Corey]

So does the same apply to the H series with sides since they are a framed unit ?

[Archived]

Yes, the H slide deployment is the same as XLII. Both are monoque chassis (one long tube)

[jack]

A word of caution to all………The slides being discussed are Prevost installed slides. None of this discussion would be applicable to non-Prevost slides or all of it may apply. You will have to read your owner’s manual if your coach does not have Prevost slides.