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03-11-2012, 07:09 AM
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#1
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Montana Fan
Join Date: Nov 2005
Location: Beaumont
Posts: 244
M.O.C. #4995
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Jack placement
Dumb quesion? Where do you put the jack when changing a tire?
Thanks!
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03-11-2012, 07:50 AM
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#2
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Montana Fan
Join Date: Feb 2012
Location: Homosassa
Posts: 307
M.O.C. #12211
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I'm going to leave it alone and call road service. No I'm not sure.
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03-11-2012, 07:54 AM
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#3
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Montana Master
Join Date: Aug 2008
Location: New Bern
Posts: 4,372
M.O.C. #8728
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Be careful, not all road service people know where to jack up the trailer either.
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03-11-2012, 09:16 AM
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#4
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Montana Master
Join Date: Mar 2010
Location: Land O Lakes
Posts: 2,783
M.O.C. #10246
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I have only changed one tire on our Montana and when I did, placed the jack under the I-beam frame closest to the tire being changed...since this was the forward tire on the curb side, had a tight fit near the entry steps.
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03-11-2012, 09:38 AM
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#5
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Montana Master
Join Date: Aug 2007
Location: Waterford
Posts: 3,693
M.O.C. #7500
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I use two. A 20 ton bottle jack under the frame close to the tire I'm changing to raise the unit enough to take some weight off the springs, and a smaller 2 ton jack under the axle to raise the axle high enough to remove/replace the wheel and tire. The 20 ton takes the weight off the axle so you don't bend or distort it when raising it. Don't forget to chock the wheels on the other side and set the parking brake on the tow vehicle.
Last time I had to do it, it was on black top in Montana and the air temp was 112 degrees. It was NOT fun!
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03-11-2012, 10:03 AM
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#6
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Montana Master
Join Date: Oct 2009
Location: Navarre
Posts: 1,527
M.O.C. #9765
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If you can't get the wife to do it, Tom S has a good technique.
Mike
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03-11-2012, 10:14 AM
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#7
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Quote:
quote:Originally posted by NCFischers
Be careful, not all road service people know where to jack up the trailer either.
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X2 on this one. Even the Goodyear folks who put on my G614's would have jacked it up using the axle if I hadn't been there to stop them.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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03-11-2012, 12:21 PM
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#8
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Montana Master
Join Date: Nov 2007
Location: Atlanta
Posts: 908
M.O.C. #7915
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Since I sold my 3400RL, I don't have the manual, but I can tell you where NOT to put it...under the axle.
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03-11-2012, 01:28 PM
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#9
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Montana Fan
Join Date: Nov 2005
Location: Beaumont
Posts: 244
M.O.C. #4995
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Thanks all for your replies, we were just wondering...just in case!
(probably jinxed myself) LOL
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03-11-2012, 01:51 PM
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#10
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Montana Master
Join Date: Aug 2008
Location: New Bern
Posts: 4,372
M.O.C. #8728
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I have jacked mine on the axle between the u bolts. The axle has a solid piece of stock inside it at that point that supports the hub.
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03-11-2012, 02:27 PM
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#11
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Montana Master
Join Date: Feb 2004
Location: Brandon
Posts: 3,944
M.O.C. #1034
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I have always used a 12 ton bottle jack under the axle in between the u bolts. Just lift it enough to get the tire on/off. That action is certainly no worse than your tires/axles dropping in and out of a simple pot hole.
__________________
Darwin & Maureen DeBackere
Minnedosa, Manitoba, Canada
2011/3500/Silverado/4x4/DRW/Duramax
2017/3721RL/Legacy Pkg./Pressure-Pro
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03-11-2012, 02:34 PM
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#12
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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I agree with Jim and Darwin ... there's no problem with jacking the fiver up by the axle placing the jack between the spring U Bolts directly under the springs. Think about it ... that's where the axle supports weight of the fiver per design. Some of us have made a saddle from angle iron welded to the jack adjuster screw for maximum contact. The one thing you don't want to do is place the jack towards the middle of the axle ... you will run the risk of bending the axle at that point. Just throwing out my opinion ... trying to lift the fiver off the wheels by jacking up the frame is putting undo stress on a bunch of stuff both inside and outside the fiver.
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03-11-2012, 02:56 PM
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#13
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Montana Fan
Join Date: Mar 2011
Location: San Angelo
Posts: 115
M.O.C. #11213
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I may be right, I may be wrong, but this is what I do. I have two 4X4s with a 2X10 on top of them, also I have a ramp that I can pull up on to get too the 4X4s, after I get one wheel on the 4X4s I move the ramp.
change the flat then drive off the 4X4s with the ramp. I will call the tire man next time just got roadside.
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03-11-2012, 03:52 PM
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#14
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Montana Master
Join Date: Aug 2006
Location: Texico
Posts: 1,917
M.O.C. #6150
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I do as NCFischers, DarMar, and dieselguy do, between the u-bolts on the axles with a bottle jack. My reasoning is the same as dieselguy's, jacking on the frame enough to get the tire off the ground, twists and stresses the entire trailer, more than I am willing to take responsibility for.
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03-11-2012, 04:41 PM
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#15
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Montana Master
Join Date: Feb 2005
Location: Sioux Falls
Posts: 729
M.O.C. #3206
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I pull the good tire up on a ramp I carry until the flat tire is off the ground- This creates sufficient clearance to allow easy removal of the flat and installation of the spare- JMHO - Don
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03-11-2012, 05:03 PM
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#16
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Montana Master
Join Date: May 2010
Location: Rock Island
Posts: 1,074
M.O.C. #10457
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Yes, just as LonnieB and others indicate between the ubolts on the axle with a 12ton bottle jack. In fact I have releveled the rig using this method.
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03-11-2012, 05:06 PM
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#17
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Seasoned Camper
Join Date: Jun 2009
Location: Sidney
Posts: 91
M.O.C. #9399
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I have never had to change a flat on any trailer we have ever owned, but tried this as
a test. Take your Lynx Leveler blocks, make a stack of blocks and either drive ahead or back up on them so the opposing wheel comes up off the ground. Too simple, too easy.
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03-11-2012, 05:33 PM
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#18
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Montana Master
Join Date: Oct 2008
Location: Siloam Springs
Posts: 2,206
M.O.C. #8890
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Quote:
quote:Originally posted by Tom S.
I use two. A 20 ton bottle jack under the frame close to the tire I'm changing to raise the unit enough to take some weight off the springs, and a smaller 2 ton jack under the axle to raise the axle high enough to remove/replace the wheel and tire. The 20 ton takes the weight off the axle so you don't bend or distort it when raising it. Don't forget to chock the wheels on the other side and set the parking brake on the tow vehicle.
Last time I had to do it, it was on black top in Montana and the air temp was 112 degrees. It was NOT fun!
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Tom S. listens to Dexter Axel.
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03-11-2012, 07:37 PM
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#19
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,953
M.O.C. #5651
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I too have used a bottle jack on the axle. But I recently got a new 'thing' that you drive up onto with one tire to help lift the other tire off the ground. I haven't tried it tho. But after thinking about it, I wonder if this idea is so good? When you get one tire up on something so the other is off the ground, you now have 5-6000 lbs on one end of one axle!!! That is half the trailer weight, right. So the whole axle would have 1/2 on one side and 1/4 on the other yielding about 9000 lbs on the 6 or 7 thousand lb axle. Is this good???? Just wondering!!??!!
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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03-12-2012, 12:03 AM
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#20
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Montana Master
Join Date: Jan 2009
Location: Vermontville
Posts: 1,129
M.O.C. #9045
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I think we sometimes over analyze things a bit. People have been jacking on the axles for as long as there has been trailers. I'm with the group of jack it up where the axles are and you won't have a problem. Its where all the weight sits anyway and all your doing is lifting that same weight that the axle supports in the first place. I think its just common sense. Lifting on the frame also tweeks the frame and that is probably just as bad as trying to jack on the axle away from the springs. Just my opinion is all.
Dave
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