Hi-Lift Jack Use Issue ????? - Jeep Wrangler Forum
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Old 08-17-2016, 06:47 PM
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Hi-Lift Jack Use Issue ?????

So I picked up a 48"Hii-Lift from an auction.

WITHOUT A LOAD .......

Rating - works as it should, up one notch for each stroke.

Lower - So I put the Reversing Latch to the DOWN position. On the first stroke the jack DROPPED to the bottom, not one notch at a time as I expected.

I'd hate to have the Jeep up in the air and then have it drop suddenly.

Is there a reason for this behavior? Like the fact there was no load on the jack?

OR ------

Is there a problem with the jack?


THANKS

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Old 08-17-2016, 07:09 PM   #2
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I have had mine drop like that with no load on it, i never had it happen with load. I just dump motor oil on the pins when they start sticking and getting rusty.

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Old 08-17-2016, 07:14 PM   #3
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When there is no load on the jack, you are able to slide the jack up or down freely depending on the direction your latch is at. Well, mine can't but it sits on my hood through all the rain, snow, and dust, I really should oil it more.

It is working properly, from your description. However, they are not safe even in perfect operating condition. You have to set it up just right, have a dedicated spot on your bumper or side step, and have solid ground. This is why I find it quite useless, given that its main purpose is for recoveries. If you get stuck, it's because it is slippery or uneven terrain, two things that render the jack useless.

The only time it's actually saved an ass was when a TJ was coming down off a rock pile and shot a coil spring. He moved a couple feet forward to a dry creek bed and got the Hi-Lift fit under there.
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Old 08-17-2016, 07:26 PM
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I paid $15 for the damn thing and I wanted to use it to raise the front end, put jack stands under the frame and finish the leaf spring replacement job.

After that it will sit in the garage.

I did the back with a hydraulic jack, some magic tricks and a lot of luck!

Thought the hi-lift would be a better tools.

Sounds like from what I am reading the pins may be sticking. I'll disassemble, clean and lubricate and see what happens.

Might be worth it to install new pins .... I think they actually offer a rebuild kit for the thing.
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Old 08-17-2016, 07:26 PM   #5
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Your jack is operating normally. I would recommend watching some YouTube videos on its operation. Then practice on your jeep on a flat surface and become fimilar with it.
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Old 08-17-2016, 07:54 PM
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Quote:
Originally Posted by Lee H View Post
Your jack is operating normally. I would recommend watching some YouTube videos on its operation. Then practice on your jeep on a flat surface and become fimilar with it.
I did watch a few videos and read a few write-ups about this issue.

It seems the pins might be slightly binding causing it to drop.

I can see this when trying to lower, the pins are not moving as they should.

Can't hurt to pull them out, clean off any corrosion as well as clean up the races they ride in.

I just got back in from trying to lift a load and lower it.

Lifting was fine ...... lowering was not so fine.
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Old 08-17-2016, 08:33 PM   #7
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Good luck with you new jack. Gloves will come in handy, these jacks pinch!!
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Old 08-17-2016, 10:31 PM   #8
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That's normal- it happens to mine when it's not under a load. I spray WD-40 on the mechanism after I use it, which isn't very often. I keep it bolted to the roll bars either behind the front seats by the floor, or diagnally by the back seat. It should work for what your trying to do, just use your brain and don't do something stupid. Keep your hands on the jack handle at all times until your have it at the height you need, then make sure its locked into that position.
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Old 08-18-2016, 01:51 AM   #9
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As with any tool, a Hi-Lift jack can be dangerous if you don't know how to use it or if you don't respect its limitations. These things are primarily a recovery tool, not for lifting a vehicle to change a tire.

If you need to change a tire, use your original Jeep jack. If your Wrangler is lifted, bring along a couple blocks of wood and put them under your Jeep jack.

I have a Hi-Lift mounted on my rear roll bar. I use it to pull T posts around the property.

OP, you probably don't need to disassemble your jack. Simply lube it with PB Blaster or WD40 and work it a bit. Then keep it lubed with a light oil.

Good Luck, L.M.
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Old 08-18-2016, 06:46 PM   #10
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I carry a small chain on the trail so I ca keep it from slipping when lifting. Works good as a clamp too.

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