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Old 08-06-2009, 09:37 AM   #15
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If you have POWER GEAR jacks then the alarm is trigured by the fluid level in the tank

The system assumes "Tank full = Jacks UP" and "Tank less than full = Jack Down"

NOTE: if you fill the tank to the suggested level in Jan.. Come August (Hey, that is now) Most years, the tank will overflow as the fluid expands faster than the tank.. Then come next JAN.. ALARM time This august.. Is more like January so far.

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Old 08-30-2009, 02:02 PM   #16
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HWH jacks have one sensor per jack, so if one doesn't retract fully it will sound the alarm. If the sensor is bad (or going bad) it will sound the alarm (or sound the alarm intermittently) even when the jack is up. If you have the 625 touch pad for leveling, it will show by the LED which jack(s) is(are) not up according to the sensors.

If there is just tank volume behind the pinhole leak, you can probably patch it even w/the fluid level above the leak w/a metal stud screw thru the hole and small o-ring under the screw head (stop in @ an ACE hardware or equivalent & ask for the screw & o-ring). If there may be mechanism behind the leak (some designs have the pump installed within the tank) then don't do that as you may run the screw point into something damaging it. If you use the screw/o-ring method & still have a seep, you can clean that occasionally and live with it, or pursue a more permanent & complete patch.

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Old 08-30-2009, 07:41 PM   #17
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Just to confirm what one person responded above --- HWH hydraulic fluid that is used in their leveling system is clear in color. They do this in case there is a leak that might "squirt" any fluid in the coach will not stain the carpet like Dextron fluid (red in color) will. I have bought a quart of it and have it on hand should I have to top off my leveling fluid tank.

Glad to hear that you fixed your problem --- sorry about the leak but, the suggestion about the small screw and the "o" ring is a good solution to a problem in that area.

I use silicon spray on my leveling jacks and after I spray them, I will wipe them down to take off the excess spray so "dirt particles" will not stick on the cylinders and cause a problem with the seals down the road.
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Old 08-31-2009, 11:26 AM   #18
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Dextron, and there are several numbers, not all mix well, is automatic transmission fluid used in many automotive transmission and in Power Gear Jacks.

I see folks have yammered about HWH jacks a lot in this thread, I see one poster said that HWH makes or rather sells it's own brand

POWER GEAR, on the other hand, recommends Dextron, I forget which number and check the sticker when I go to get some (NOTE The number is a roman numeral and it can fake you out)

Thus, I will assume you have POWER GEAR jacks

It is kind of chilly out just now

Power gear jacks use a float valve in the fluid tank, a full tank = retracted jacks, alas, when it is hot out that fluid expands faster than the tank some overflow may occure

Then when it gets cold (It was freezing in Wisconsin this AM) the fluid "retracts" and no longer fills the chamber.

From the tone of your post, it appears you know you need to add fluid.

So, where to get it:

Any auto parts store, Truck Stop, most gas stations, Sears, K-Mart, and other mass merchindisers with auto departmetns. Pep Boys, Camping World, your RV dealer, Many if not all hardware stores, Many drug stores like CVS or Rite Aid or Wallgreens, Many supermarkets (The auto isle in those cases) .. In short, dang near anywhere. Comes in a 1 quart bottle that looks exactly like an oil bottle, in auto stores and departmetns it may well share a shelf with motor oil. Do not confuse them. Looks something like the photo (NOTE: Label may be different but WILL say Dextron on it)


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