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Old 07-28-2023, 06:48 AM   #1
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Correct Bottle Jack

I was just searching for a bottle jack to keep in the trailer incase I needed to lift a tire high enough to remove it or just spin it so I could repack my bearings and I want to make sure I get one that will work for me. The ones I'm seeing only have a travel length of about 5-6 inches. Even if I started with the top of the jack tight against the frame would this give me enough lift? I have leaf spring suspension. If anyone has a suggestion for a particular jack that they know works, that would be greatly appreciated too. Thanks for any advice you can give.

Jeff
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Old 07-28-2023, 07:06 AM   #2
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I carry 2 Big Red 8 ton double ram bottle Jacks. It's overkill but I prefer to have more than I need. There are other brands with less capacity but I have always had good success with Big Red.

https://www.amazon.com/BIG-RED-Doubl...0-4513d670b6bc

Even with the double rams I still carry extra cribbing with me because you never know what the terrain will be like during a roadside repair.

I also welded a small piece of scrap pipe to a metal plate that I slip over the jack post to spread out the load and provide some stability. I glued a rubber mat to the top of the plate for some added grip as well.
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Old 07-28-2023, 07:19 AM   #3
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I have one from Lowe's and it should be fine. I do have a couple of small boards to put underneath the jack for stability and added reach
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Old 07-28-2023, 11:31 AM   #4
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I just purchased a 4 ton bottle jack from Harbor Freight and it has already been used to replace my old one that was leaking down.

I carry a selection of 2x6 boards to adjust any space that needs filling under the jack. 6-7 inches is all I have ever needed to lift the axle once the frame is supported.
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Old 07-28-2023, 01:33 PM   #5
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I love the double ram jacks like Marcm157 has, but already had an 8 ton single ram from HF that has the screw up top post. Fortunately, I haven't needed to use it on the road yet outside of making sure it fit the bill in the driveway.
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Old 07-29-2023, 09:38 PM   #6
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I bought a 20T bottle jack from HF for its stroke, I also cary many 2x4x16 cribbing pieces to put the jack if I need to lift.
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Old 07-31-2023, 07:08 PM   #7
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Thanks to all who have responded. Do you all feel that 7.89 inches of lift is enough to get the wheel off the ground? That's my concern. That the amount of lift isn't enough.
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Old 07-31-2023, 08:13 PM   #8
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I would say yes. You can drive the good tire up on some blocks, which will reduce the height you need to jack. I place my jack on blocking too.
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Old 08-01-2023, 03:42 PM   #9
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Thanks to all who have responded. Do you all feel that 7.89 inches of lift is enough to get the wheel off the ground? That's my concern. That the amount of lift isn't enough.
I rely on the front landing gear to support the front of the 5th and use a bunch of cribbing to build “towers” to support the rear. A tower on each side just behind the axles with a jack stand on top. Another tower close behind the first set of towers that I move side to side with the bottle jack on top to lift the side. I like to lift about 2-3” at a time to get the rear up 5-6”.
This doesn’t get the tires off the ground. I then lift the axle by jacking under the spring and remove the tire. Lowering that hub will leave it hanging a few inches off the ground. Repeat for the remaining tires and I have easy access to the hubs and suspension. I do this when servicing the bearings and when I installed my wet bolts. I find it very stable and can leave it “in the air” until I finish the job.

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Old 08-16-2023, 09:45 PM   #10
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bottle jack for travel trailer

Place the jack under the axel. Less travel is needed. MOMCAT
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Old 08-16-2023, 10:18 PM   #11
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Right, and bend your axles, then wear out your tires! Poor advice, read your owner's manual.
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Old 08-17-2023, 05:45 AM   #12
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Place the jack under the axel. Less travel is needed. MOMCAT
You never want to raise your trailer from under the axles. You risk causing serious and unrepairable damage.
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Old 08-17-2023, 08:12 AM   #13
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Jackin up

You Right...I Read it...I wrong...MOMCAT
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Old 08-17-2023, 09:18 AM   #14
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Originally Posted by Marcm157 View Post
You never want to raise your trailer from under the axles. You risk causing serious and unrepairable damage.
I'm reading through these posts, as I recently acquired a 2020 Eagle 330rsts. I want to inspect the brakes and bearings, this weekend. I don't have access to my manual at the moment, can you tell me where the often recommended jacking location is, if not under the axle? Once I get home, I will review the manual.

Thanks in advance.

Mike
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Old 08-17-2023, 09:27 AM   #15
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While I agree that you should never jack your RV up from the axle itself, as the concern is that you could bend the axle. However, that recommendation doesn't take everything that should be known into account. If you choose to lift the RV from the frame you are introducing stress at a point on the frame that wasn't designed for that purpose and you may have to lift that side of the RV up a lot ~10" more or less which will lean the RV a lot and could cause damage to the suspension on the side of the RV that you are not jacking up and even if no damage, your are definitely putting a twist in the frame.

My suggestion and what I have done, (regardless of the mfg recommendations) is to place the jack under the leaf spring that is attached to the axle and right next to the tire that needs to be lifted and then I use only enough lift to remove the wheel. On trailers with the leaf springs above the axle I use a wood block to spread the load over the 2 U-Bolts that attach the axle to the leaf springs which cradles the axle.

Point being, the concern is when lifting the RV by jacking up the axle which certainly could damage the axle especially the further away you get from the wheel, but when lifting an inch or two from the same location that the leaf springs are attached doesn't mechanically stress the axle anymore than when the trailer is not jacked up. If your leaf springs are under the axle then the springs themselves will cradle the axle, otherwise if the springs are above the axle, use a wood black to distribute the weight across the 2 leaf spring U-Bolts which will also cradle the axle. ~CA
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Old 08-17-2023, 09:27 AM   #16
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Quote:
Originally Posted by nascarmikeb View Post
I'm reading through these posts, as I recently acquired a 2020 Eagle 330rsts. I want to inspect the brakes and bearings, this weekend. I don't have access to my manual at the moment, can you tell me where the often recommended jacking location is, if not under the axle? Once I get home, I will review the manual.

Thanks in advance.

Mike
My manual says place the jack on the frame near the tire to be changed.
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Old 08-17-2023, 03:53 PM   #17
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bottle jack location

Under the leaf spring plate is where I have lifted alot of trailers over the last 60 years. Never had a problem. Seemed safer to me. I appreciate being told though that my method is wrong. It helps knowlng that someone is looking out for me and my stuff. JUST Wondering....Is it ok to jack a 40' Tiffin A Bus on the rear end housing??? MOMCAT
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Old 08-19-2023, 05:57 PM   #18
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I use a Powerbuilt for two reasons. First is the piece that holds the TT in place. I don't like the bottle jacks because first time I lifted the TT with one a gust of wind moved the TT and I was lucky it did not slide off the jack. The second reason is that it has a built in "jack stand." I worked too many years in a radiator shop to trust any hydraulic jack without a jack stand. I also like the wide base. I use it every time I change my wheel bearings.
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Old 08-21-2023, 06:58 AM   #19
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Travelingjw.. I looked at the "Powerbuilt". I liked that. I had never seen or heard of one. Will have one soon! Thanks for the info. MOMCAT
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Old 08-21-2023, 03:09 PM   #20
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Travelingjw.. I looked at the "Powerbuilt". I liked that. I had never seen or heard of one. Will have one soon! Thanks for the info. MOMCAT
I totally agree!!!!!
The "all in one" jack/stand is an awesome idea.

https://www.amazon.com/Alltrade-6409...zcF9hdGY&psc=1

That would be a handy jack/stand for a lot of applications.
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