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Removing CMP tires from rusted &*^%%* rims..
CAUTION.....CAUTION...... read last email...... we have found a way to exceed the tool design!!!! NEW PICTURES OF DAMAGE ADDED
News from the Hammond barn. We got the ESCO tire bead breaker tool and put it to the test. Little did we know that the rim we selected was going to be a bit***. The tool was purchased off Ebay at $139 US converted to $201 Canadian Pesos plus $26 dollars PST GST compliment of the Canada Custom. 002DSC03271-2.jpg Tool is weld made....simple construction. Yo will noticed that the claw that losks on to the inner face of the rim has been beefed up...... the Ebay picture did not have that improvement. Wanting to know how it was made and under the pretext of seeingeif the inner thread was greased we took it apart. Simply remove the lock nut and set screw. The end of the set screw fits into a key way cut into the foot bar and keeps the foot from turning....... a problem that was resolved in there HD $600 model which uses a square tube. Yes there was some lubricant.... but knowing the heavy load that we would be submitting the tool to we recoated with Never Seize grease and put it together again. PS.... having a hard time getting the pictures to insert where I want.... Next will move to using the tool.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada Last edited by Bob Carriere; 07-03-16 at 17:47. |
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Using the Esco tool
We fished out a CMP rim that had a blow out a few years ago and was left outside with Mother Nature.
By the way the tool does come with pictures and instructions. They DO NOT recommend using a air impact gun but a air ratchet gun may be used. The difference is the air ratchet only get up to 90 foot pounds and the typical air impact gun in 1/2 in. size gets about 450 pound.... the 3/4 we have does 900. The air ratchet is useless unless you are just taking up the slack in the bolts. We used a HAND ratshitt with an 18 in. handle and Grant who did all the heavy work did admit that it took some muscle power. 004DSC03274-4.jpg 005DSC03275-5.jpg The tool works best with two people since you have to tap the base of the tool for the wedge to fit under the rim's edge.....at the same timeas you lightly tap you take up the slack on the claw that pulls the foot in deeper. So tap tap thighten tap tap tighten....... don't go wild you risk cutting into the side wall ( which we did not care as it was toast) until the free space between the throat of the tool and the edge of the rim is closer..... we went to far and chipped a corner of the foot...... not a big deal but should be avoided.... we simply unscrewed the claw bolt a half turn and went on.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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....as we move on....
Obviously the first section you use is the hardest...... a small block of wood to prevent the tire to flex back is useful.... we used the rim nuts.
After repositioning a few times we started to see the inner edge of the rim..... this is after 4 separete tries. 008DSC03278-8xx.jpg We had to use the tool to fully rip the rim out of the tire. 009DSC03279-9.jpg 010aDSC03280-10a.jpg The rim will need a good cleaning....... wonder if the dish washer can handle this job. 011DSC03281-11.jpg 012DSC03283-12.jpg Moving on to the lower half of the rim......
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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Now for the back side.....
Just has difficult to insert as on the front side except now we now how to approach it.....tap tap tighten..... the back half is much deeper and almost requires to go around at least 3/4 of the rim ......block off with wooden block then come back to push it down evenly. The foot is long enough to unrim the tire.
017aaDSC03290-17.jpg 018DSC03291-18.jpg Eventually the tire gives up and the rim comes out...... Yes it takes arm muscles....... and on a real tough nut like this one and being the first we did about an hour....... it took melonger to edit, resize and post the information..... Next our observations after the fact......and conclusions.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
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Observations and conclusions.
We sure picked a doozee to tackle with a new tool and it worked.
Similar badly rusted tires have previously resisted to hours of pounding with a sledge hammer, long chisels and pry bars....... the full weight of the bucket on my 7000 pounds Massey, bottle jacks against rear traction-pull bar of the tractor and just lifted the tractor then the tire fold back up.... We think it is worth the money at $227 CDN....... Would not recommend to a journey man earning his living doing rims all day long. The alternative more expensive one at +$600 US is too expensive for the hobbyist... at least the cheap skates at the barn.... Does need to be properly greased BEFORE first tiem you use it and again if you have been abusing it regularly. We did take it apart after the first tire job...... we excell at taking things apart... and all was well.... but we did had some Molydebnum high pressure black grease..... I dripped some Moly gear box additive while the foot was removed so that it wold flow down the vertical tub up to the top flange.... ...it dripped after and Grant was upset with all the black grease/oil.... hey it was just marking it's territory. Our conclusion is it's worth the money and it works.... next we will tackle 20 in. rims with badly rusted stiff tires and almost new 11:00x20 2 1/2 ton rims as we need to save the 20" tires for the CMPs. ....and will keep you posted. Some of our observation after removing the rim and examining the tire beads. they had been savagely attacked with a grinder and suspect that at least all the covering rubber plus 2 or 3 plys of the rayon ( yes Rayon not cotton as we suspect the tires to be circa late 50s). The tire bead was rust welded to the rim...... the contact area of the rayon threads were rollingover themselves before letting go....... it might explain why the tire had a blow out in the side wall just a few inches above some of the bad gouges..... it blew up while standing still inside a Winter shelter.....and yes it do go Boom I know some of you do trim the extra rubber flashing from the beads but PLEASE do not cut into the plys of the bead. Some last pictures in closing. Comments and suggestions always welcome.
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada |
#6
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Well done Bob and Grant. It looks like your breaker has a longer push than mine. I spent two hours by myself removing my worst tyre. Your tool cost about half what mine cost more than ten years ago.
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Robert Pearce. |
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