replacing the bushings and pins on my TLB

[chuck1764]

I will be replacing the bushings and pins in my backhoe and i need to know what steel to use for my pins and if i will need to heat treat them? The bushing will be 2in DOM C1020 steel with a bore of 1.5 I have access to 1018,1045,1117 11L17,1215,A-36 steel for the pins.I also need to know how much clearance i need between the two.

 

[Iplayfarmer]

I will be replacing the bushings and pins in my backhoe and i need to know what steel to use for my pins and if i will need to heat treat them? The bushing will be 2in DOM C1020 steel with a bore of 1.5 I have access to 1018,1045,1117 11L17,1215,A-36 steel for the pins.I also need to know how much clearance i need between the two.

My thoughts: Pins are easy to replace. Go with milder steel so the pins take the wear and just plan to replace them more often.

I'm probaby wrong, but those are my thoughts.

 

[mjncad]

How about buying the pins and bushings from the dealer? That would save you the hassle of making sure you get the right grade of steel, heat treating, etc. Or are they terribly expensive or no longer available for your machine?

 

[dfkrug]

I will be replacing the bushings and pins in my backhoe and i need to know what steel to use for my pins and if i will need to heat treat them? The bushing will be 2in DOM C1020 steel with a bore of 1.5 I have access to 1018,1045,1117 11L17,1215,A-36 steel for the pins.I also need to know how much clearance i need between the two.

I prefer a mild steel pin, too. They are cheap to make from standard
rod stock. My experience on clearance is don't go much less than .015,
or much greater than .018. So say .012 to .018".

Remember that DOM is not a hard steel either.

 

[RoyJackson]

How about buying the pins and bushings from the dealer? That would save you the hassle of making sure you get the right grade of steel, heat treating, etc. Or are they terribly expensive or no longer available for your machine?

I agree...the other posters were saying to use a milder steel without realizing a catastrophic failure can occur. If you can get the specs of the OEM pins and you can make them or have them made to those specs, then do that. But material substitutions, just because they fit, is not a good idea.