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Old 03-27-2010, 09:14 PM   #15
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Yes, I know that you can cheat the system - my question is why would you do so? There is a reason why the interlock was done, my guess would be increased stability?

Barb
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Old 03-27-2010, 09:38 PM   #16
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Barb, then why was the interlock removed on latter models. All 4 of my slides will deploy or retract with out the jacks extended.

I see frame flex on my coach when the front is raised. None when it is on the airbags. It is very visible between the 2 front passenger side cargo bay doors. They almost touch when the front is raised a few inches.

My front passenger slide does not bind if I deploy or retract it off of jacks. If I do it on jacks some times it pops when it gets to the transition from raise/ lower to extend/ retract.

I just do it what ever way works best at the time. If I am on a level site, slides go out if not I may mess with leveling first.
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Old 04-03-2010, 05:37 PM   #17
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A follow up on this -- Mike, the solenoid turned out fine. I did the wipe down with a small dab of ATF on the rear jacks and they were quite dirty. Lots of dust and wind in Palm Springs this year.

After the wipe down on the jacks they cycled like new. The slow passenger side rear jack came up almost as fast as the other jacks, right from the get-go. So this looks like a good trick; I must have had more accumulated dirt than I could easily see with the naked eye, and tight or dry seals on the jacks.

So thanks for all the input; I'll keep using ATF periodically and see how it goes. And I do have a closet rod to pry the jack up if necessary.
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Old 04-03-2010, 05:49 PM   #18
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I bought two sets of the plastic blocks sold at camping world and put five blocks under each jack everytime I put the jacks down. They don't extend near as far and come up a lot faster. I still have a slow rear jack but doesn't take very long to retract when I use the blocks.
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Old 04-14-2010, 06:14 AM   #19
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There is a bulletin out for hwh jacks dated April 2009. you can read the full bulletin. here (http://www.hwhcorp.com/ml44725.pdf) This is for the 325 series leveling system. the reason I'm posting this is, I thought it was taking to long with retracting the jacks. you can do a google search for HWH jacks retract slow. here are the times and temps.
1. ABOVE 60 DEGREES
6,000 and 9,000# JACKS FOUR (4) MINUTES
12,000 and 16,000# JACKS FIVE (5) MINUTES
24,000# JACKS SEVEN (7) MINUTES

2. BETWEEN 30 DEGREES AND 60 DEGREES
6,000 and 9,000# JACKS SEVEN (7) MINUTES
12,000 and 16,000# JACKS NINE (9) MINUTES
24,000# JACKS THIRTEEN (13) MINUTES

3. BETWEEN 0 DEGREES AND 30 DEGREES
6,000 and 9,000# JACKS FOURTEEN (14) MINUTES
12,000 and 16,000# JACKS EIGHTEEN (18) MINUTES
24,000# JACKS TWENTY SIX (26) MINUTES

Hope this helps.
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Old 04-15-2010, 11:39 PM   #20
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Wow! those are long times for the jacks to retract. As slow as ours are, they're not as slow as HWH says; probably about 1/2 that amount of time for 6 to 9 thousand lb jacks. Guess we didn't have a big problem. The ATF fluid wipe down has worked well since we did it, however.
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Old 04-16-2010, 02:11 AM   #21
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We often park our '07 34' on sand in the desert. Soon the sand is visibly sticking to the ram. I have found not only slow retraction afterwards but intermittent leaking as the sand gets into the seal. Now I spray the seal area with WD-40 which runs down and washes off the ram. The jack retracts rapidly and no more leaks.

We had trouble with the living room slide binding at the top if we leveled the coach before extending the slide. The binding actually ripped the rubber roof on the slide. The left front jack is right under the front of the slide and pushes the frame up enough to bind the slide. Now it is slide out first, then level. Retract jacks, then slide in.
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Old 04-16-2010, 02:14 PM   #22
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Jacks vs temperature

Thanks for the info of the download of the information bulletin. One very important thing to remember when using the temperature chart is that it states "The temperatures noted are for the jacks and the oil in the hoses, NOT AIR TEMPERATURE"!!
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Old 04-16-2010, 05:00 PM   #23
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Quote:
Originally Posted by paintman607 View Post
There is a bulletin out for hwh jacks dated April 2009. you can read the full bulletin. here (http://www.hwhcorp.com/ml44725.pdf) This is for the 325 series leveling system. the reason I'm posting this is, I thought it was taking to long with retracting the jacks. you can do a google search for HWH jacks retract slow. here are the times and temps.
1. ABOVE 60 DEGREES
6,000 and 9,000# JACKS FOUR (4) MINUTES
12,000 and 16,000# JACKS FIVE (5) MINUTES
24,000# JACKS SEVEN (7) MINUTES

2. BETWEEN 30 DEGREES AND 60 DEGREES
6,000 and 9,000# JACKS SEVEN (7) MINUTES
12,000 and 16,000# JACKS NINE (9) MINUTES
24,000# JACKS THIRTEEN (13) MINUTES

3. BETWEEN 0 DEGREES AND 30 DEGREES
6,000 and 9,000# JACKS FOURTEEN (14) MINUTES
12,000 and 16,000# JACKS EIGHTEEN (18) MINUTES
24,000# JACKS TWENTY SIX (26) MINUTES

Hope this helps.
I echo the remark about these being extremely long times. No way mine take anywhere near that long. THis seems to me to be spin control to lower expectations and avoid solving problems. If you look at many car owner's manuals they will say stupid things like it is "normal" for a car to burn up to 1 quart every 1000 miles. SInce when? If my car lost a quart every 1000 miles it would be bone dry by the next oil change. When something is not right, manufacturers try to revise specs and say something that is clearly not normal is within tolerance.

Those retraction times can't be normal. What they mean is "we won't fix them under warranty until they get worse than these parameters."
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