Slide Out/In Proceedure

[hamguy]

There you have it, folks. The definitive answer to the question which, incidently, is opposite other, equally definitive answers to the question.

Huh??

[adj]

This is my third time enjoying this subject.

In the beginning (2004), I discovered my MH owners manual conflicted with the Power Gear owners manual with regard to slide operation procedure. I contacted Manaco Tech and was informed the MH manual had the correct procedure (slides out; then level.)

Logic was telling me that it made more sense to level first and then put slides out, but, I went with the manufactures procedure.

During a previous thread on this subject, it suddenly dawn on me why my particular coach should be leveled after slides were deployed.

My coach is equiped with Power Gear 4 point jacks that are an adaptation of a 3 point sytem. The front jacks are not independent of each other as they run off the same supply line. Therefore, the front end of the coach can have up/down movement depending on load shift from one side to the other.

As I see it, if I level first, as the slide is extended there will be a load shift. The rear jack will maintain its' position but the front jack will depress. This will cause body distortion.

As I stated, this only applies to my particular setup. If this coach was equipped with independent jacks on all four corners, I would think it would make more sense to level first.

[TXiceman]

If the hydraulic system is clear of all aair, hydraulic fluid is considered a non-compressible fluid. Now if you are leveling with air bags, I can see the shift theory as air is a compressible gas.

Ken

[adj]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by TXiceman:
If the hydraulic system is clear of all aair, hydraulic fluid is considered a non-compressible fluid. Now if you are leveling with air bags, I can see the shift theory as air is a compressible gas.

Ken </div></BLOCKQUOTE>
True, however, if there is a common line between two hydraulc actuators and one receives an increase in pressure....

[georgetown350]

I would think that you should put the slides out after automatic levelling or with jacks up but not after manual levelling.

I prefer to manually level because I don't like how much the auto levelling lifts the coach.

So after reading your posts i'm thinking it might make better sense for me to slide out then lower jacks.

Thanks

Guys

Steve

[Barbaraok]

As someone wisely put, it depends upon the coach manufacturer.

Ours can not have the slides extended until the jacks are down. So it is dump air, level, then extend, and the reverse when getting ready to go.