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Old 11-15-2019, 10:12 PM   #1
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Tack welded leveling jacks

I have a 2014 24í Surveyor Sport with manual leveling jacks. Two of the jacks were tack welded with no bolts or screws to the mounting surfaces. The other two were fastened with two sheet metal screws. I found this by accident while emptying my black and gray water tanks. I put weight on the left rear jack when I went to stand up and it fell off. It had two small weld tacks holding it on. Just an FYI for those that have the model. I can only imagine if it had fallen off on the highway.
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Old 11-17-2019, 11:38 AM   #2
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Thats good info let the forum know how you corrected the problem on your rig.
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Old 11-17-2019, 11:47 AM   #3
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Does sound like a poor install but are they levelling or stabilizing jacks not to be used for levelling but used that way?
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Old 11-17-2019, 12:23 PM   #4
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When the jack is extended, the load on the welds or screws is in compression, so they generally will not fail.
When the jack is retracted for traveling, the welds or screws ARE loaded and that is when they will fail, as in bracing a person standing up or traveling down the road.

I would not like a jack falling off in front of me on the road. Those jacks have enough sharp edges and mass to ruin oneís day in a number of methods.

OP is good to notify us of the issue. I will be checking mine before I move again.

Thanks, OP.
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Old 11-17-2019, 01:50 PM   #5
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I don't really care for the sheet metal screw option, either. When I rebuilt my camper, I took off the stabilizer jacks to "spruce them up".

Prior to re-installing them, I took 2 pieces of 3/8" x 1" flat bar (about 2" long) and transferred the jacks' screw hole location onto the flat bar. After drilling and tapping 3/8"-16 holes in them, I welded the flat bar to the camper frame.


Now, the jacks have bolts and lock washers securing them.

Rich
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Old 11-17-2019, 02:09 PM   #6
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If he could push on it with his hand and it came off it is definitely not welded enough. Sounds like they took lunch after tacking them on.
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Old 11-17-2019, 03:09 PM   #7
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Elastic stop nuts

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Originally Posted by rollscanardly View Post
I don't really care for the sheet metal screw option, either. When I rebuilt my camper, I took off the stabilizer jacks to "spruce them up".

Prior to re-installing them, I took 2 pieces of 3/8" x 1" flat bar (about 2" long) and transferred the jacks' screw hole location onto the flat bar. After drilling and tapping 3/8"-16 holes in them, I welded the flat bar to the camper frame.

Now, the jacks have bolts and lock washers securing them.

Rich
I sometimes use elastic stop nuts for applications like this. You know, the hex nuts with the nylon ring at the top. Even if they somehow loosen, they will not spin off under vibration.
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Old 11-17-2019, 06:16 PM   #8
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Quote:
Originally Posted by Larry-NC View Post
I sometimes use elastic stop nuts for applications like this. You know, the hex nuts with the nylon ring at the top. Even if they somehow loosen, they will not spin off under vibration.

In the case of the stabilizer jacks, the sheet metal screws go through the top plate of the jack, and into the frame. There's no nut involved.


Although, my frame is rectangular tube. Perhaps a channel iron or I-beam frame could have a nut??......



But, I'm very familiar with nylock nuts. I have an entire assortment of those in a bunch of different sizes.



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Old 11-17-2019, 09:19 PM   #9
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Stabilizer attachment:

I believe those nuts with the nylon are called lock nuts.
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Old 11-17-2019, 10:20 PM   #10
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Maybe...

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Originally Posted by boonebiker View Post
I believe those nuts with the nylon are called lock nuts.
In the trade, they are called elastic stop nuts. See this page for example. "Elastic" for the nylon insert which stretches, "stop" because it stops free spinning.

Not to be confused with castle nuts, also called castellated nuts like these.
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Old 11-19-2019, 02:08 PM   #11
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That's exactly what I did. Bolts and self locking nuts. Thanks
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Old 11-19-2019, 02:12 PM   #12
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Quote:
Originally Posted by SeaDog View Post
Thats good info let the forum know how you corrected the problem on your rig.
I redrilled the mounting plates and added bolts, washers and nylock nuts!
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