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Old 08-22-2015, 07:50 AM   #1
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Can front stab jacks support entire front TT weight?

I overheard a discussion of opposing viewpoints on this. My guess from the sticker on the jack is that they will NOT.

One guy said he needed to get blocks under the tongue jack, and said you could temporarily support the front of the TT while the tongue jack was raised off the ground.

Not sure what model was being discussed, but it was not a 5th wheel.
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Old 08-22-2015, 08:33 AM   #2
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Can front stab jacks support entire front TT weight?

I would not , just using common sense. Not a lot of that around anymore.
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Old 08-22-2015, 08:43 AM   #3
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Can you do it, probably. They aren't designed to handle that weight, they are only designed to provide stability. I wouldn't want to do it though. Your front tongue jack can handle some lateral forces without collapsing. The stab jacks are not designed to deal with that shearing force and could very easily bend and break, allowing the front of the trailer to come crashing down.

The time to put blocks under the tongue jack is when its still hooked to your tow vehicle.
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Old 08-22-2015, 08:59 AM   #4
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Dealer did exactly that when I picked up my W Hawk after some service work. Front jack wouldn't lift high enough to hook up to my 3/4 ton so he set the corner legs before raising the front jack high enough to insert the 5x5 block. He then raised the tongue jack and retracted the corner legs. TT was connected and I was on my way in 5 mins.

I ask about the safety of this procedure, and he said it is standard procedure for moving units on the lot. Not a good idea to leave the TT supported in this fashion for any length of time or to try to actually lift the unit with the corner jacks. Holding it in place for a few seconds while inserting the lifting block to the front jack is not a problem.
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Old 08-22-2015, 10:19 AM   #5
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When I need to lift or hold the front of the TT, I use the scissor jack from my F-150 to do it. I consider what is in the corners of the TT to be stabilizers and never try to lift or level the TT with them. I use lynx blocks for leveling side to side and the electric tongue jack for front and back.
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Old 08-22-2015, 12:50 PM   #6
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I had the same thought about lateral force. If one of those gave way and the trailer came down you'd have a lot of damage.
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Old 08-22-2015, 02:05 PM   #7
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Not worth it,a lot of weight coming down if they fail.

I have one of these on mine and love it.

http://www.amazon.com/Fastway-88-00-.../dp/B003CE283I

If you don't need the extension,hold it in the folded position and set it on a small wood block.
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Old 08-22-2015, 07:06 PM   #8
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I did it all the time with my old pop up. First house we lived in with it had a pretty good slope. I could not get enough blocks under the tongue jack to level it out when unhooking. I would put a couple Lynx under and crack it up as high as possible. Then crank the front stabs down. Next crank up the tongue jack up enough to put 2 more Lynx under, level, and the adjust all the stabilizers. Never had a problem. Would not have a problem doing the same with the current camper. In fact planning on doing this to put a foot on the tongue jack instead of just the open pipe. Now, I would not do this with people going in the camper.
Now as far as supporting weight, what do you think the stabilizers do? When a person is moving around in the camper, it transferring weight to the ground, instead of it going through the axles. Many people in pop ups have tipped backwards when they forgot to put the rear stabilizers down. Those stabilizers have to support weight normally too keep it from tipping.
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Old 08-22-2015, 07:27 PM   #9
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If I have to add/remove blocks from under my jack, I usually put two tall stacks of Lynx levelers under the A-frame, one under each side, and then make the adjustment. This is actually what I did when I swapped jacks. If was extremely stable and only took a few seconds to set up.

I personally wouldn't trust the stabilizers for this purpose.
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Old 08-22-2015, 08:59 PM   #10
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I have done this on a 2005 27bh, a 31 bhs and a 32bhds without problems. We camp in some areas where the front has to be lifted higher than what you can do while it is connected to the TV. I only did it while setting up and always make sure the front jack takes most of the weight once set up. We were boondocking at NASCAR races then on very unlevel ground and saw this done all the time.
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Old 08-23-2015, 12:43 PM   #11
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Quote:
Originally Posted by Bassdogs View Post
Dealer did exactly that when I picked up my W Hawk after some service work. Front jack wouldn't lift high enough to hook up to my 3/4 ton so he set the corner legs before raising the front jack high enough to insert the 5x5 block. He then raised the tongue jack and retracted the corner legs. TT was connected and I was on my way in 5 mins.

I ask about the safety of this procedure, and he said it is standard procedure for moving units on the lot. Not a good idea to leave the TT supported in this fashion for any length of time or to try to actually lift the unit with the corner jacks. Holding it in place for a few seconds while inserting the lifting block to the front jack is not a problem.
When I picked up my Eagle new from the dealer during the first hitch-up the tongue jack would not go high enough to clear the ball. The technician came out with two very large cast iron jack stands. He put them under each side of the trailer A-frame and lowered the trailer onto the stands so he could adjust the electric tongue jack. I have the electric stabilizers and he told me never put all of the weight on the electric stabilizers.
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Old 08-23-2015, 02:00 PM   #12
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Scissor jacks YES stab jacks NO
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Old 08-23-2015, 03:10 PM   #13
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I had the same thought about lateral force. If one of those gave way and the trailer came down you'd have a lot of damage.
We have had our TT knocked of the front support blocks when someone in the storage yard backed into it. The post of the jack was driven straight into the ground. There was no damage at all, but I needed to jack the trailer up, fill the hole and re-block it. I used the F-150's jack to lift it.

Our 25Z has 700# of tongue weight. Maybe the stabilizers would hold 350# each, but I never intend to find out.
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Old 08-23-2015, 03:29 PM   #14
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Agree with the scissor jacks versus the electric jacks. Those electric jacks don't look very stable or substantial to me. I would much rather have the scissor jacks.
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Old 08-23-2015, 03:40 PM   #15
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I have done this on a couple occasions when I needed another block under the tongue jack to level the trailer.

But we had the BAL scissor jacks at the time, on an '87 Yellowstone, and an '01 Dutchmen. Not sure how the scissor jacks are on the new trailers, or their weight capacity.
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