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Cribbing

D

Doug-Iowa

Member
Needed to service the H front end wheel bearings and replace one of the wheel centers. We had a tractor fall off some home made jack stands earlier this year, no harm done but could have been a bad deal. So I used lots of cribbing to be sure that didn't happen again. I had a pile of short 4x4's I cut up a bunch to 24" and built up the cribbing like they taught us in fire rescue classes. Worked good, solid as a rock.
cvphoto32448.jpg
 
Seems to me it'd be simpler and safer to run one front wheel at a time up on a block a couple inches off the floor and then you can do anything to the other wheel you want.I have a couple
OAK blocks slant cut just for that purpose.
 
Cribbing is a pia, to long, to short, to thick, to thin. But it is the only way many times and I would hate to not have my various 6x6,6x5, 4x4, 2x4, 3/4x?? in my shop. Your cribbing will be there for your next project. gobble
 
Can never have too much. I have to get underneath the combine heads from time to time. I lock up the hydraulics and then build two huge piles of cribbing on either end. Never had a problem but it sure makes you feel better. Long story short...cribbing is a great tool and a great backup in case another method fails.
 
Most narrow front ends can be safely worked on by driving one wheel up on a 2x6 to lift the opposite wheel off the ground. John Deere Roll-a-Matic front ends are an exception.
 
If you get a chance to pick up one of these they certainly are handy . Maybe a little more work to do it your way but at least you blocked it up instead of trusting the handyman jack like I?ve been known to do
cvphoto32462.jpg
 
Your cribbing is ok till the last few bl0cks under frame rail,big bubba comes n to visit,leans against your H and thud.
Cut hickory tree and make sure at least 24 inches in diameter.cut at various lenght,solid and positive
 
You do realize clearance is needed for the oil pan, can't criss cross all the way to the top
 
(quoted from post at 19:03:39 08/06/19) I hope the cribbing under that wooden floor is as strong as the cribbing above it.
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John in LA, I have never seen cracks in a wood floor like the ones on the other side of that Farmall.
 
We end up with tons of cut offs from deck and fence building. Several YTers have picked up a pile from me. 4x4 and 6x6 are the favorites.
 
(quoted from post at 03:40:30 08/07/19) You do realize clearance is needed for the oil pan, can't criss cross all the way to the top
Click to expand...

Markct is right. To overcome this one of my splitting stands is two pieces of 5 inch angle stock lagged into a 30 inch long 8x8. The angle stock has holes to match up to holes in the cast iron oil pan, and are spaced on the 8x8 to be snug up against the pan. I then jack the front up, bolt the stand onto the oil pan, and then crib up to the 8x8.
 
I agree, can?t have too much, this is my extra pile outside the shop
<a href="http://s33.photobucket.com/user/Joecdeere/media/6AB3AA70-2DE1-4C72-8801-123ED36B0DD7_zpskcrhxwvw.jpg.html" target="_blank">
6AB3AA70-2DE1-4C72-8801-123ED36B0DD7_zpskcrhxwvw.jpg" border="0" alt=" photo 6AB3AA70-2DE1-4C72-8801-123ED36B0DD7_zpskcrhxwvw.jpg
</a>
 
[b:654c4848f0]John in LA, I have never seen cracks in a wood floor like the ones on the other side of that Farmall[/b:654c4848f0]

Maybe it is just my monitor or the stains on the concrete; but that sure looks like wood grain in wood to the right of the front wheel.
 
Just never use a concrete block. They are not designed for this kind of load. The failure of a concrete block is often catistrophic, and many people have been injured or killed using concrete blocks for this. A neighbor 10 years ago was crushed under his boat due to this sudden failure.

Yup......I have a pile of random 4x4's and 4x6's.
 
(quoted from post at 08:30:02 08/07/19) The word is dunnage .All your wood blocks are dunnage. Must have dunnage !
Click to expand...

Well Dr, according to FSMCA you have to insert "dunnage" into the voids between stacks or wrapped pallets as you load them onto the truck so that the product can't shift during transit. Shipping pallets appear to me to be the dunnage of choice.
 
Dunnage is what cribbing is when it is laying in a pile, or stuck between things on a load. When dunnage (carefully selected for solid aspects and size -- and placed under some other thing to hold it up it becomes cribbing. And I "stick" to it. Jim
 
A 4x4 should be good for about 6,000 lbs, so in a 2 by 2 box, total weight that you can support is 24,000 lbs. A 6x6 gets you up to 15,000 lbs, or 60,000 lbs for a box crib. If you use a a 3 by 3 box crib, increase the capacity by 50%. It's best to have an overlap on the corners of a couple of inches, that allow a little "crush" to lock in the cribbing like Lincoln Logs. This is using treated pine, Hardwood like Oak is a bit more.
 
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