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Unread 05-28-2014, 10:03 PM   #1
donovan53
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how do I safely use a high lift jack?

Hey guys after blowing a tire on the trail and having to find someone with a high lift jack to help me out I realized I needed one so now that I have one how do I safely use it? Like where should I jack the jeep up at? After I got the jack I tried jacking it on the tow hook to test it out and got the back two tires off the ground and then thought to myself well when I get a lift and 35's on this thing the tires are gonna be higher so I jacked it up a little higher and the jeep slid out from under the jack i dont know why I had the parking brake and e brake firmly set. So I need to know how to jack it up without the jeep sliding off thanks, Donovan 2010 Jku sahara stock tires and suspension

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Unread 05-28-2014, 10:25 PM   #2
sarkaukar2000
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Hmm. First, always block your wheels to prevent the jeep from rolling forward or backwards. If you are only depending on your parking/e-brake you will eventually get someone hurt or worse. High lifts are too unstable to use them on a regular basis.

Use your bottle jack or get another bottle jack with a higher extension while carrying around some 2x4 or another solid base. If you need to to use a high lift you can jack it up from the sides if you have rock sliders installed. Or purchase the accessories that will allow you to get a hook under the bumper

As for what happened with your JK, since you jacked up the rear end it would not matter whether or not you had the ebrake set or not. The ebrakes locks the rear wheels, not the front. That is why it rolled off.

A high lift jack primary purpose is not for changing tires but for vehicle recovery. Quoted this from another forum.

Quote:
Originally Posted by Red View Post
Not sure if there is a thread on this already, but if you asked, then there are probably others out there that are wondering the same thing, so...

There are lots of neat things that you can do with a hi lift, but lets start with some of the basics.

As general rule, you do not want to use a hi lift for tire changes. They are unstable. If you have bumpers with hi lift jack points (look like a cut out T) on the bumper or sliders, it is a bit safer, but as a rule of thumb, they are not intended for tire changes. That being said, I can't say I haven't done it often.

As another general rule, don't get under the vehicle when it is jacked up with the hi lift. Refer back to them being unstable. They are not intended for repair or modification work.

Jacking points. On an after market bumper or sliders, you may have a hi lift jack point (that T cut out, but it could be a hole for a peg that gets inserted - it all depends on the manufacturer), and that is usually the best place for stability. On a stock vehicle, you want to get it under something solid. The bumpers, even the steel in the front is not solid. The Rubi sliders will work, though I remain a bit hesitant to use them there. If you can somehow wedge it under the frame where the bumper ties in up front that is the way to go. You will crush the plastic a bit, but hey! The same thing goes for the rear. If you can get it under the tow hook in the back, it should work as well. Bottom line is the JK is not really designed for hi lift jacking, so get creative and live with the damage.

One more safety point. When lowering, keep your face away from the handle. The thing gets slick with mud and water and such, and they have a tendency to slip out of your hand and hit you in the face with a lot of force. Hasn't happened to me, but have seen it happen. It looks painful.

Now to get to a bit of the fun stuff. You can use it as a winch. Use two tow straps, one on the top of the hi lift with a d ring and the other around the lifting part. One strap around a stationary point and the other on the vehicle. Start jacking. It is slow going and won't get you far, but it works.

On really off camber situations, you can use it the same way as with jacking as a way to keep tension on the vehicle to prevent it from tipping. I hope that makes sense. I can't explain it much better.

Probably my favorite and most used is to get the vehicle out of a rut. Put it under the center of the front or rear bumper and jack it up high enough to get the wheels well clear of the ruts. All the while, keep one person on each side of the vehicle to keep it centered. When the wheels are out of the rut, one person on the side backs off and the other pushes, and the truck falls off of the jack and lands on the other side of the rut. Repeat on other side of the vehicle.

Use it to get over or onto a big obstacle. Drive up to the obstacle, jack up the front of the truck so the wheels get on it, and drive over the jack and onto the rock.

The handle from the jack also makes a good cheater pipe, hood prop, beating stick, or anything else that a large pipe can be used for.

You can break the bead on a tire with the jack. Lay the tire on the ground at a good jacking point on the truck, put the foot of the jack on the tire next to the rim, and jack the truck up. The vehicle's weight will break the bead. Turn tire and repeat.

They make great fence post pullers, or pullers of anything that requires lots of effort.

Okay. I guess thats enough for now. I'll let others chime in as well. There are lots of accessories that go with them as well that expand the possibilities. Be creative. It is basically a pulling/lifting/leverage tool.

Just remember... Safety first. They are unstable, which can be a benefit or a hinderance, but they are unstable. So, if it looks unsafe, it probably is, so try not to be stupid.

Oh, one more thing. A hi lift is an expendable tool. That means it only has a limited number of uses in it before it is done for. Some of the above uses, like getting onto obstacles will end up breaking them. Don't plan on keeping it forever. And when it breaks, do the rest of us a favor and don't leave a broken one lying around on the trail, they are great for puncturing tires and damaging vehicles in this state.
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Unread 05-29-2014, 12:27 AM   #3
schitzangiggles
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Unread 05-29-2014, 03:02 PM   #4
FarmerinVA
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X2 re the advice above: DO NOT use the Hi-Lift to change tires. That isn't in the warranty, anyway. Use your bottle jack for that. Carry a block of wood or a purpose-built platform to provide good footing and a bit more height to your bottle jack (although if you place the bottle jack properly under the axle, you don't need extra height even with larger tires).

The Hi-Lift is useful for many tasks. Just not this one. Nowhere near stable enough.
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Unread 05-29-2014, 03:53 PM   #5
zillla
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Don't use it to change tires?? Damn!! I been doin it wrong for over 50 years..
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Unread 05-30-2014, 10:15 AM   #6
FarmerinVA
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Quote:
Originally Posted by zillla View Post
Don't use it to change tires?? Damn!! I been doin it wrong for over 50 years..
Well, you must be taking appropriate precautions if you're still with us.

Hats off to you, you are doing a lot more work. Jacking up the whole vehicle very high (since you need to soak up the articulation of the suspension), versus just the axle, is a whole lot of extra pounds to move. This is one of the rare places where safety and laziness are happily aligned.
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Unread 05-30-2014, 11:23 AM   #7
zillla
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See'ins how my Jeep doesn't have a bottle jack in it the sheepherders jack does just fine.. Thank you.. But the last time I used it, like 5-6 years ago or so I was hung up on my transmission crossmember..

If you are lifting 2 tires off the ground to change 1 you are doing it wrong.. Noted by the OP..
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Unread 05-30-2014, 01:38 PM   #8
schitzangiggles
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A hilift jack is like a gun. The minute you don't respect it, it kills/hurts you.
No more, no less.

Also just like guns there is a plethora of bad, misinformed, mistaken and utterly retarded "facts" out there that really ought not be. Just like guns you get people who can make the hilift do things not tought possible and do it quickly and safely. On the other side of the coin you will have people who would hurt themselves with a rubber band and a pet rock, let alone a complex device like a hilift.

YMMV
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If you love wealth more than liberty,the tranquility of servitude more than the animating contest of freedom, go home from us in peace. We seek not your counsel nor your arms. Crouch down and lick the hand that feeds you. May your chains sit lightly on your shoulders and may posterity forget that you were our countrymen.
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Calling Illegal Aliens "Undocumented Immigrants" is like calling drug dealers "Unlicensed Pharmacists"

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"No one provokes (attacks) me with impunity".


"Your right, the Tea Party and the OWS are the same, just like the America Revolution and the French Revolution were the same. The only problem is the American Revolution ended with Liberty, Freedom, Justice for all and a shining light upon a hill. The French Revolution ended with lynchings, guillotines, murder and socialism. So yeah, I could see how one could confuse the two..."

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Unread 05-31-2014, 12:44 PM   #9
rubiconrich
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schitzangiggles: I like what you said but still have a comment. I am turning 66 in about a month. My generation grew up with jacks that resembled the hi-lift jack. There were some snowy nights that I got a flat and it was on a very steep hill. Was nervous and didn't like having to jack so high. One time in Arizona, as I was jacking, the jack was sinking into the hot Summer asphalt!!! Just saying that life wasn't all peachy back then but we used that jack and we ain't griping. We thought it was normal. I started jeepin' in a 1953 Willys Overland Wagon. Jeeping was different back then. Now-a-days, the jeep crowd has all kinds of doo-dads. During my youth, we were different too but we were not more dangerous. We were just as used to our lifestyle as you are to yours. People like Zillla and me were from an earlier time.
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Unread 05-31-2014, 12:50 PM   #10
fireman3
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Most important safety tip for a handy man jack (what we farmers called them for years until someone started using them for off road) is do not let go of the handle while jacking down.
I've seen 2 Broken jaws from a run away handle.
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Unread 05-31-2014, 02:56 PM   #11
schitzangiggles
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Quote:
Originally Posted by rubiconrich View Post
schitzangiggles: I like what you said but still have a comment. I am turning 66 in about a month. My generation grew up with jacks that resembled the hi-lift jack. There were some snowy nights that I got a flat and it was on a very steep hill. Was nervous and didn't like having to jack so high. One time in Arizona, as I was jacking, the jack was sinking into the hot Summer asphalt!!! Just saying that life wasn't all peachy back then but we used that jack and we ain't griping. We thought it was normal. I started jeepin' in a 1953 Willys Overland Wagon. Jeeping was different back then. Now-a-days, the jeep crowd has all kinds of doo-dads. During my youth, we were different too but we were not more dangerous. We were just as used to our lifestyle as you are to yours. People like Zillla and me were from an earlier time.
Oh I totally agree. My youngest brother asked wy I didn't have a bunch of pictures of all of the cool stuff I did growing up. I told him "I grew up in the '80's, we actually did stuff, not scrapbook about it."
Kids today are encased in Styrofoam and bubble wrap and so sheltered from life/reality they don't even have a chance to get scars with cool stories that teach valuable life lessons. In short, we have gelded the stallion and bid him to be fruitful.

I had friends that fell over when the found out I got my 7yr old daughter a single shot .22lr that she HUNTS critters with. When did we turn into France?
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"Axeheads are supposed to be sharp, but you are one blunt tool."
FLynes



If you love wealth more than liberty,the tranquility of servitude more than the animating contest of freedom, go home from us in peace. We seek not your counsel nor your arms. Crouch down and lick the hand that feeds you. May your chains sit lightly on your shoulders and may posterity forget that you were our countrymen.
-Samual Adams

A government big enough to give you everything you want is big enough to take everything you have.
Thomas Jefferson

Calling Illegal Aliens "Undocumented Immigrants" is like calling drug dealers "Unlicensed Pharmacists"

Nemo Me Impune Lacessit
"No one provokes (attacks) me with impunity".


"Your right, the Tea Party and the OWS are the same, just like the America Revolution and the French Revolution were the same. The only problem is the American Revolution ended with Liberty, Freedom, Justice for all and a shining light upon a hill. The French Revolution ended with lynchings, guillotines, murder and socialism. So yeah, I could see how one could confuse the two..."

Mac Wilson
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Unread 05-31-2014, 03:11 PM   #12
wilson1010
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Leave it on the roof and carry the proper size and type of jack for your rig. And, if you are using it on the trails, carry two one foot squares of 3/4" plywood to set the jack on. I love a hydraulic bottle jack, but for a rig without much lift, the right scissors jack will do also.
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Unread 05-31-2014, 05:25 PM   #13
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There is a time and place for every type of jacking tool. Like others have stated, some of us grew up with the ratcheting jacks that were standard issue with cars. I carry a choice of three; bottle, scissor, and the hi-lift. Each has its place and happy to have those choices available.

As stated in an earlier post, also carry plywood squares or maybe some 2x8x8" lumber. A firm base makes a huge difference in the safety factor. Also, it would be a good idea to take a friend along and practice on different surface to get the hang of using the tool. Maybe start in your drive or in a flat field and then progress to less suitable terrain that is similar to trail conditions. Better to be experienced before ya need to use it in a tough situation.

Whatever ya do, think safety first.
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Unread 06-02-2014, 06:59 AM   #14
Ross
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Quote:
Originally Posted by donovan53 View Post
Hey guys after blowing a tire on the trail and having to find someone with a high lift jack to help me out I realized I needed one so now that I have one how do I safely use it? Like where should I jack the jeep up at? After I got the jack I tried jacking it on the tow hook to test it out and got the back two tires off the ground and then thought to myself well when I get a lift and 35's on this thing the tires are gonna be higher so I jacked it up a little higher and the jeep slid out from under the jack i dont know why I had the parking brake and e brake firmly set. So I need to know how to jack it up without the jeep sliding off thanks, Donovan 2010 Jku sahara stock tires and suspension
The jeep will never be stable jacking it up like that regardless of what jack you use.

I have jacked a jeep like that in the past with the intention of knocking it of the jack but never to actual work on it.

If you are working on the jeep I would only jack one tire up at a time and then place a jack stand. On the trial that may not be possible but still only jack up one tire at a time if you are working on the jeep, regardless of what jack you use.
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Unread 06-02-2014, 07:15 AM   #15
wilson1010
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Since it is often impossible to get underneath a rig on the trail to properly set a scissors jack, an interesting approach is to get a long ram hydraulic jack fitted for a swivel plate on the bottom and a secure attachment to your tow point at the top and lift from the tow points. I got this idea from having a 10,000 lb Unimog on the trails and it worked so well, I added the long ram hydraulic to my on board equipment:

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