Lift-Mate

Submitted: Thursday, Sep 20, 2007 at 14:14
ThreadID: 49886 Views:4770 Replies:2 FollowUps:7
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Hi All!
Is anyone used Lift-Mate on Hi-Lift in real recovery situation? Really attractive piece of equipment (because actually you need lift wheel, not body), but how friendly it is to sheet metal? It seems to me that it is incredibly easy to scratch/dent car while using them. Any thoughts?
Cheers
KSV
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Reply By: Anthony (Vic) - Thursday, Sep 20, 2007 at 15:39

Thursday, Sep 20, 2007 at 15:39
I gather the lift mate is the item that has a piece of box tube that attaches to the jack and has a couple of straps with hooks that hook onto the wheel slots.

The potential to damage the body would depend on how close the outer wall of the tyre is to the outside edge of the wheel guard. As the Liftmate rests against the tyre wall.

I use a home-made version of the Liftmate with about 800mm of chain and a hook attached to each end of the chain. The chain sit over the hi lift with the hooks in the wheel slots.

When using it, the lifting part of the jack rests against the tyre wall. I place a piece of thick hard rubber to distribute to pressure applied by the jack to the tyre wall. The only chance of damaging the body of the 4wd would be if the jack slipped.

Otherwise my main concern with the Liftmate and with my version of it is the pressure on the tyre side wall.
AnswerID: 263179

Reply By: Member - Coyote (QLD) - Thursday, Sep 20, 2007 at 16:25

Thursday, Sep 20, 2007 at 16:25
In fact the current version of the jack mate has a piece of hard rubber that is specifcally designed to go against the wall of the tyre. They are the best thing since sliced bread, just be sure the base of the jack is firmly placed of course, in fact I use the Hilift plastic base plate at the same time.. gives that extra bit of stability.. but there is far less pressure/ potential for things to go wrong as like you say, you are only lifting against the springs, not the weight of the whole vehicle. For obvious reasons, not real effective for tyre changes as you cant remove the wheel because obviously the jack is attached to the wheel.
AnswerID: 263183

Follow Up By: Member - Coyote (QLD) - Thursday, Sep 20, 2007 at 16:27

Thursday, Sep 20, 2007 at 16:27
meant to say that the rubber pad on lift mate fits against my tyre wall and the edge of rim, so not reall risk there.. but I have 17" rims and the lift mte is not adjustable, so smaller rims would meant llift mate may be against the tyre wall only, but as it has a big rubber pad, I dont see the problem with that.. rubber on rubber, and you are only lifting against the spring so easy peasy.. much better than tryig to lift the whole side of the car or trying to crawl underneath with a bottle or scissor jack.
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FollowupID: 524744

Follow Up By: Member - Alastair D (NSW) - Thursday, Sep 20, 2007 at 16:32

Thursday, Sep 20, 2007 at 16:32
For tyre changing using the above approach, I carry a block of wood that can be put under the suspension and then drop the Hilift down. Murphy says if you have it, you won't need it. I have found the block useful for other things nonetheless.

Having just bought a new vehicle, I am fitting a front and rear bar which has Hilift slots so maybe I won't need it in the future.
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FollowupID: 524746

Follow Up By: disco driver - Friday, Sep 21, 2007 at 00:38

Friday, Sep 21, 2007 at 00:38
Hi All,
Just a quick clarification required please.

Coyote says you are lifting against the spring and not the whole side of the car, can anyone explain how this is so???

As I understand it, the Lift-mate is attached to the wheel, which in turn is attached to the axle, which is attached to the springs, which are attached to the chassis and hence the body.

So jacking the wheel must lift the wheel, the axle, the spring, the chassis and the body.

Correct?? If not, please explain.

Disco
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FollowupID: 524838

Follow Up By:- Friday, Sep 21, 2007 at 08:22

Friday, Sep 21, 2007 at 08:22
If you jacking one metre then correct. But ususally you need to jack only say 20-30 cm. In tnis case majority of lifting will went into spring compression, i.e.you need much less efforts.
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FollowupID: 524853

Follow Up By: Member - Coyote (QLD) - Friday, Sep 21, 2007 at 08:40

Friday, Sep 21, 2007 at 08:40
Basically the spring is not that stiff that as soon as you start to lift the wheel the whole car lifts.. as you jack up.. the spring compresses. yes, eventyually the spring will compress that far that you will start to lift thw whole sideof the car, but the beauty of the this device is that you get the 'lenthgth of spring travle' to jack the tyre up before you start lifting the full weight of the car.. Is that about as clear as mud?????
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FollowupID: 524857

Follow Up By: disco driver - Friday, Sep 21, 2007 at 10:45

Friday, Sep 21, 2007 at 10:45
Coyote,
Your explanation still sounds illogical to me.
If the weight of the car is resting on the tyre, the spring is still carrying the weight of that corner of the car.
As soon as you start jacking at the wheel the spring is still carrying the weight of the vehicle and this can not change.

The only thing you gain is that you do not have to jack the jack up so high. You are lifting the wheel direct and NOT lifting the body and then having to allow the spring to extend to the limit of it's travel before the jack starts to lift the wheel .

Disco.
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FollowupID: 524876

Follow Up By: Member - Coyote (QLD) - Friday, Sep 21, 2007 at 11:15

Friday, Sep 21, 2007 at 11:15
the reason you dont have to lift as high is because unless the spring is fully compressed, there is still travel left in the spring.. as you start to lift the WHEEL (not the car).. the wheel will lift untill the spring is fully compressed (the range depends on how much load is on the spring of course which in trun dependfs on how much crap you have in the back hehehe) hence you are only lifting the wheel not the whole car.. once the spring becomes fully compressed, you THEN start to lift the weight of that corner of the car, the point is you dont have to lift the whole corner of the car the full distance of the suspension travel before the wheel starts to lift of the ground.. Keep in mind here, the reason you are jacking is probably because the wheel is not getting traction and it needs to be blocked under eg mud or severe angle or bottomed out on soemthing like a rock etc. and hence there is no car weight being borne by the wheel.
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FollowupID: 524878

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