Bobcat MT55 track wore shoulder off hydraulic drive

tttahoe1 · Apr 11, 2014

*Man, I love the projects I get myself into. Diving into fixing the messed up Kubota D902 (separate thread) - I noticed that the tracks had worn the shoulders on the hydraulic drives - both sides of the machine. See photo of right side drive below. *I am assuming that the tracks had either worn to the point they were stretched and tension was not kept up with or ???? *Plan is to get a local welder to TIG up the worn down area and grind back down to correct profile. My worry is distorting the housing with that much welding, but............. I don't have much choice. *The machine has relatively low hours ~ 1,600...........but, it was a rental. And.............as they say - "Nothing parties like a Rental". So I was going to get the drives rebuilt since I will be this far into removing, welding, and ........possibly....... overheating some internal seals. *Does anyone have a favorite drive rebuild place? I have yet to check locally hear in Sacramento, CA. *Any other thoughts are always appreciated. Thanks, Jim

tttahoe1 · Apr 11, 2014

Hmmmn, can't post pic. Will upload to photo bucket later and post link. Sorry.

Tazza · Apr 14, 2014

tttahoe1 said:
Hmmmn, can't post pic. Will upload to photo bucket later and post link. Sorry.

Looking forward to seeing pictures.
Not sure a TIG would put enough heat in to be an issue, it is a very localised heat. I'm wondering if you may need to get it welded up with hard facing too, not just mild steel.

tttahoe1 · Apr 23, 2014

Tazza said:
Looking forward to seeing pictures.
Not sure a TIG would put enough heat in to be an issue, it is a very localised heat. I'm wondering if you may need to get it welded up with hard facing too, not just mild steel.

Tazza - thank you for reply. * Apologies for the delay. * You read my mind re: hardfacing. * Need to get my eyes on a running MT55 so I can see how much room there is between a non-worn drive shoulder and a correctly installed track to determine how thick I can go with hardfacing. * Photos: the drive that is still on the machine is the left side. http://s1102.photobucket.com/user/tttahoe1/library/Bobcat MT55 Drive Motors

siduramaxde · Apr 26, 2014

tttahoe1 said:
Tazza - thank you for reply. * Apologies for the delay. * You read my mind re: hardfacing. * Need to get my eyes on a running MT55 so I can see how much room there is between a non-worn drive shoulder and a correctly installed track to determine how thick I can go with hardfacing. * Photos: the drive that is still on the machine is the left side. http://s1102.photobucket.com/user/tttahoe1/library/Bobcat%20MT55%20Drive%20Motors

I have a mt55 so I can try to get pictures for you...maybe later today or tomorrow