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Old 06-22-2014, 08:46 PM   #1
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Jack warning light

Well the first real camping trip with the RV was fun even if it did rain most days.

While driving to the campground the warning light for my jacks being extended came on. I pulled over and turned on the system and it showed the right rear was down so I pulled it up then checked it (should have done it the other way around) and it was up. Continued the drive without it happening again. Then on the way home today it did it again. This time I pulled over and looked at the jacks. They all looked fine. I turned on the system and it showed the left rear being extend although it didn't look like it was. Again I pulled it up and it was fine the rest of the trip.

Two questions - since the springs pull them up is it even possible for them to extend while driving?
Any other reason that might cause the light to come on?

Thanks



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Old 06-22-2014, 09:25 PM   #2
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My jack warning comes on if the hydraulic fluid level is low.
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Old 06-22-2014, 09:49 PM   #3
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If any jack is down, your light should come on. When jack is down about 2 inches, add enough oil to turn the light off and the sound also. Larry F30536
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Old 06-23-2014, 05:57 AM   #4
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Quote:
Originally Posted by lkwiest2lrq View Post
If any jack is down, your light should come on. When jack is down about 2 inches, add enough oil to turn the light off and the sound also. Larry F30536

Now I need a bit of direction as to where I would add the oil. So much to learn...



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Old 06-23-2014, 06:06 AM   #5
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First you need to acquire and read the owners manual...
The hyd. jack pump and tank should be together. Stand outside and have someone run a jack up or down. Listen for the noise - that's the pump! What oil type to add? That's in the owners manual and can be different from make to make...
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Old 06-23-2014, 10:43 AM   #6
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if it is power gear, low fluid WILL cause the jack alarm to come on.
if it is hwh low fluid will NEVER cause the jack alarm to come on.
there is a plug on the side of the power gear tank that is where you add fluid.
just fill it till fluid runs out the hole.
hwh uses springs to retract the jack. it doesn't need any fluid to do that.
both systems use dexron atf fluid.
the newer hwh jacks only need about 1/4 inch to turn on the alarm. just reach over, hit the retract button and continue to drive. that is the only function on hwh systems that will work without the park brake being set.
it in the manual. you know that new unopened plastic wrapped booklet in your owners folder provided by winnebago. how do i know? i have one too.
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Old 06-23-2014, 11:04 AM   #7
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Maybe the sensor is going bad?
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Old 06-23-2014, 11:10 AM   #8
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The jack only has to drop 1/2" for alarm to go off and a bump in road can cause it.
Weak springs can also cause it, check the fluid in tank by removing the bell vent and have the fluid between the two lines on bell vent shaft with all jacks retracted.
You can find your jack system in this link for your coach if its a HWH system.
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Old 06-23-2014, 05:41 PM   #9
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Ours was low fluid.
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Old 06-23-2014, 07:06 PM   #10
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Thanks everyone. I now have a few things to look at this weekend.


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Old 06-27-2014, 12:05 PM   #11
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I have the same problem and since all of the jacks are up, I believe it is the low fluid as root cause. Could you tell be which hydraulic fluid I can use, it's a Power Gear on a 99 National Dolphin.
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Old 06-27-2014, 07:55 PM   #12
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Mine (HWH) dose it if I hit a large bump while driving or going down a washboard road, I have gotten out to check and all looked good. Talked to by mechanic and he said it was probably weak springs.
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Old 06-27-2014, 07:58 PM   #13
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When the rear HWH jacks are up, would there be any silver ( of the jack) showing?
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This one has new springs and foot.


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Old 06-28-2014, 02:11 AM   #14
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Sometimes I use a 2x4 to help lever the jack up.
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