MF 220 Backhoe Bushings

Inno · Sep 19, 2011

The backhoe on my 202 Industrial is pretty worn out, no surprise there. I want to replace some of the bushings, eventually all bushings and pins but to have them all machined would be very costly. Does anyone know of a source for new old stock parts for these machines as any parts I have looked up are no longer available. Alternately I'm not opposed to modifying things a bit so it will accept newer, more readily available off the shelf parts. The pins are no big deal, I am in no way looking to restore this thing to factory original, I just want to remove some of the sloppiness.
Also, what material would be good for backhoe bushings? My guess is that I would want the pins to wear before the bushing as the pins are easier to replace. Thought?

smallercrawler · Sep 19, 2011

May want to check Grainger, McMaster-Carr, Fastenal for steel shaft lock collars with set screw type lock. Remove old bushings, align and weld on shaft collars. Have done it several times on various equipment with good results; usually pretty cost effective, too. Unsure about wear issues in your application, but a little lube goes a long ways, (use setscrew hole for grease zerk).Good luck!

smallercrawler · Sep 19, 2011

Mcmaster link is below. Depending on fit desired, you may want to tweak pin diameter; black oxide steel collars should weld best. HTH.
Untitled URL Link

NCWayne · Sep 19, 2011

If you know what sizes you need give Connex a call. I've been using their bushings for years to replace factory bushings, or just to bring a hole that had to be oversized back to size, after lineboring and have never had a problem. I've bored several dozen holes over the years for the RR in their track maintenance equipment and they swear by them. In fact they are the ones that turned me on to them about 10 years ago.

Being made out of spring steal and split like they are they can also be used in 'odd' sized holes as they have a fair amount of tollerance built into them. That said just remember that a larger hole is going to mean a larger pin, and vice-a-versa.

If you decide to go this route the easiest way to put them in is to tighten a hose clamp around the middle until you get it started and driven in a little bit. Then remove the clamp and drive it the rest of the way. That's a little trick I learned from the RR guys, who have been using them for years, that definately makes getting one started ALOT easier.
Connex

Inno · Sep 19, 2011

Thanks guys, that is all excellent advice. I looked at McMaster Carr but was not sure what material I should be looking for or if the spring steel ones would be ok. I guess even if they don't wear the best it would have to be better than the way it is now. I don't dare dig close to anything I value the way it is now.

Inno · Sep 19, 2011

Ok one more question, what should I be using for making the pins? Hardened or unhardened, chrome plated or black oxide? Something else?

MF 220 Backhoe Bushings

Inno

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smallercrawler

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smallercrawler

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NCWayne

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Inno

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Inno

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