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Old 09-16-2007, 11:54 AM   #1
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On the driver side frame rail about 15' back is a small cylinder with HWH on it. It has a small ram sticking out of it pointing backward that is not attached to anything. On the front side appears to be a line attached to it. It has a small leak that appears to be a dark oil or grease oozing out around the ram.

What is this small ram used for? The 2 slides and jacks are all HWH. I have never noticed this small ram before.

Don
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Old 09-16-2007, 11:54 AM   #2
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On the driver side frame rail about 15' back is a small cylinder with HWH on it. It has a small ram sticking out of it pointing backward that is not attached to anything. On the front side appears to be a line attached to it. It has a small leak that appears to be a dark oil or grease oozing out around the ram.

What is this small ram used for? The 2 slides and jacks are all HWH. I have never noticed this small ram before.

Don
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Old 09-16-2007, 12:31 PM   #3
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It probably is the syncronizing valve which governs the equalization of fluid pressure in the two arms of the front slide to prevent binding....RKL
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Old 09-16-2007, 02:48 PM   #4
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Don:

RKL has it. It is the equalizing or synchronizing cylinder. Your bedroom slide will also have one of these if you have more than one ram that operates the slide.
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Old 09-16-2007, 02:52 PM   #5
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I was underneath the coach yesterday and saw the same pistons, just seemed to be there with nothing attached and wondered what they were.
Now we know. Thanks.
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Old 09-16-2007, 03:42 PM   #6
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Thanks everyone for your replies. This sure is a great site for answers.

Don
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Old 09-18-2007, 07:08 AM   #7
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Why would one jack take 20 minutes to retract? Any help would be appreciated.
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Old 09-18-2007, 08:22 AM   #8
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Chandler Bing:
Why would one jack take 20 minutes to retract? Any help would be appreciated. </div></BLOCKQUOTE>

Chandler;
There have been several posts on this subject. If you do a search on this subject you should find several posts. To answer your question I believe it could be a couple of things off hand. The first would be that the springs are weak and causing the jack to retract slowly. The second could be a slightly bent jack post causing it to bind a little.

I had a jack that was retracting slowly but not as bad as yours. I took WD40 and with the jack extended cleaned it throughly. I than took a cloth and wiped a very light oil on the post and ran the jack up and down a couple of times. That helped a lot.

A call to HWH assuming that is your manufacture will provide further help. 800-321-3494

Don
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Old 09-18-2007, 06:27 PM   #9
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I had a front jack that was slow in retracting and what I did was put it all the way down and then wipe it down with silicone spray. I am a little "lerry" of WD40 as it is a petroleum product. When I used the silicone spray, I sprayed it and then using a very clean cloth, wiped it down leaving no obvious film on the exposed part of the jack. Now it goes up nicely. You will find a lot of people who say use nothing and then you will find a lot of us who use silicone and some who use WD40. I think the main thing is not leaving a film to attract dust and dirt.
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