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Mini excavator replacement bucket4/8/2024 Most manufacturers you can buy a new bushings to match the pins, then weld it in and line-bore it for alignment. Hopes this give a little in-site on the many ways this can be done. Make sure your insides, where the stick and bucket pivot fit are smooth with no burrs, some or most models have a large finger size O-ring as a grease seal on each side, plus shims. One thing to remember, is that their looking for a bucket to be strong in the right places and not be goobered up with bird$#!+ allover. I'm sure the boring method in the thread is a nice neat way to do the job, but you have to use what they had to on hand to work with with in the first place. Theres gonna be movement and spatter, the old pin will be more forgiving. We'd turn the inner and outer dimensions to fit a new pin, burn out the old boss's, install the new boss's with the pin for alignment and weld away! After getting both sides started, take the new pin out and put the old pin in. Thats a nice thread with pics on a large bucket rebuild! One place I worked for a long time ago had a healthy supply of thick walled mechanical tubing, cored rounds, not sure what its called. welding needs to be void free and well stuck, not pritty beads so if u can do that u will be fine. if u can goo after the barge mounted riggs operating in salt water, thats the frequent repeat order customer in this game. me and my mate were offten requested specificaly too as we were known to be quick at it. there just induction hardened en24t if a european - jap machine.Ĭustomers love speed on this down time in a quarry - demolition enviroment is a big no no. alot of the bucket ear wear is down to how good a fit the pins are to start with and how still the pins are held buy there locking system.Īllways a good idea too qoute on a couple of new pins too, easy to beat the manufacturers price on them too. also you have to look at the condition of the rest of the bucket too, often by the time the pin holes are worn out so is the bucket. i would not even contemplate this on a bucket for anything smaller than a 30 ton machine just not worth it. if very out of round build up by hand if not use rotary welder. I normaly - use to do it this way, pressure wash - degrease, clean up amy burrs with appropriate grinder. For the most part, pulling the bucket and sending it out isn't something they'll be interested in doing, regardless of how well equipped and capable an outside shop may be. The customer wants to down the machine just long enough for the repairs to be made, and no longer. Having a rig that allows you to do the work on-site would seem to be the #1 criteria in getting work like this. Suffice it to say I've seen a guy with a bore welder and a portable boring rig generate as much money in a 10 hour day as we'd generate in renting a $350,000 crane, with operator, for a 40 hour week to the same customer. But, once you get into the bigger stuff, there's some good money to be had from welding and machining that sure ain't rocket science. Like Richie said, you aren't gonna make any money repairing the holes on a worn out backhoe bucket from a 555 Ford, when a new bucket can be bought for $700 or so. From numerous conversations concerning the cost of repairs on buckets or other pivot points, it becomes obvious real fast why the people who do this type work don't let their secrets out too readily. As a result, I know most of the people in charge of maintenance and repairs for the quarries within a 75 mile or so radius. We did a lot of work for quarries when we were in the crane rental business.
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