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Old 04-19-2008, 08:52 AM   #1
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While bringing the coach out of winter storage I find the left front HWH jack sticks. My jacks are spring retract. I can reach under and help retract by pushing by hand most of the way. The last 2" requires a lever. I suspect the gasket (wiping ring?) has swollen over the winter. I have cycled it 4 times - no effect. Tried Corrision X - no effect.
Any suggestions?
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Old 04-19-2008, 08:52 AM   #2
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While bringing the coach out of winter storage I find the left front HWH jack sticks. My jacks are spring retract. I can reach under and help retract by pushing by hand most of the way. The last 2" requires a lever. I suspect the gasket (wiping ring?) has swollen over the winter. I have cycled it 4 times - no effect. Tried Corrision X - no effect.
Any suggestions?
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Old 04-19-2008, 09:04 AM   #3
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If you can push the jack back up into the stowed position, your solenoids are operating properly and opening the valve for the return of the fluid to the tank. The pressure for the return flow is a result of the spring pressure. You may need new springs on that jack. Do you have the latest version of the retraction springs? They are tapered or cone shaped at the ends.
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Old 04-19-2008, 10:57 AM   #4
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I don't know where you are at but cold hyd. oil can have an afect on it. Mine worked fine when I was in Florida but after I got home I hade trouble with one retracting but now that it's warming up a little its working fine again.
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Old 04-19-2008, 01:02 PM   #5
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I called HWH when I had this problem. The tech told me to spray the shaft with WD40, wipe it off, then smear it with Vaseline and wipe it off. That did the trick.
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Old 04-19-2008, 03:46 PM   #6
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The quick and cheap solution is like Joe posted, spray the jack cylinder with the lubricant of your choice. I use Soder Seal's Liquid Wrench. One can buy it a Lowes. No wiping off is needed. Spray all around the cylinder. You can spray the back side, of the cylinder, from the opposite side of the coach and using the red colored spray extension that comes with the can. All my jacks retract in less than a minute from any extended length.

After trying this a couple of times and they still do not retract, then I'd consider the spring replacement.
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Old 04-19-2008, 06:01 PM   #7
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I use a can of silicon and spray them before retracting and then wipe down the residue. You need to wipe so the cylinder (when next time down) does not attract dirt, dust, foreign material. I have had no ill effects from doing this.
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Old 04-20-2008, 06:35 AM   #8
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Thank you all for your replies. Tried the WD 40 and Vaseline routine - helped but didn't solve the problem. Tomorrow I will contact the good folks at HWH and ask about new springs.
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