repairing final drive case

ditchdiggerjcf · Dec 17, 2010

anybody out there had any luck repairing damaged teeth in the case of a final drive? I am reluctant to try it with a fewgrand tied up in new planetaries, bearings, etc.....

AmerIndependent · Dec 18, 2010

What teeth are you talking about? The sprocket teeth or gear teeth? What model tractor are we talking about?

Hotwheels81 · Dec 18, 2010

You mean fixing the teeth on the sun gear that the 3 planetairy gears turn? Perhaps due to one or all of the planitairy gears fail causeing broken teeth to the sun gear?

If thats the case i would buy a new sun gear because the cost would outweigh the savings if the welding lets go and takes the planetairy gears out.

QuickTrax · Dec 18, 2010

Depending on what machine you have. You can probably find a aftermarket or good used fairly cheap.

MANUEL NAUT · Dec 18, 2010

i am 100% agree with hotwheels81. you are going to rely on the uncertain quality of the repairment of the teeth. is this is an excavator you will have the complete final drive failure and probably the hydraulic motor as well. if new parts are expensive, try the used parts market, which feeds from dismantled machines.

ditchdiggerjcf · Dec 26, 2010

been looking for salvage pats for months. apparently there are none to be had. The case on a final drive has teeth machined into it. When the bearing let go it damaged the case. the case is no longer available.

stock · Dec 27, 2010

What breed ,make and model are you looking at?

jrtraderny · Dec 27, 2010

ditchdiggerjcf said:
been looking for salvage pats for months. apparently there are none to be had. The case on a final drive has teeth machined into it. When the bearing let go it damaged the case. the case is no longer available.

Be nice to know what machine, one of us on here might have one or know of one.
jr

ditchdiggerjcf · Dec 27, 2010

jrtraderny said:
Be nice to know what machine, one of us on here might have one or know of one.
jr

it is a Hitachi ex100. it shares the finals with the early 120-1 hitachi, and the 490d deere

ditchdiggerjcf · Jan 17, 2011

Anybody?

Deeretime · Jan 17, 2011

www.langleyexcavator.com

ditchdiggerjcf · Jan 17, 2011

Deeretime said:
www.langleyexcavator.com

langley scraps 200 ton and larger machines. I have already talked to them. This has been on the parts locator service for months, with no luck.

kneelo · Jan 17, 2011

I know people who have successfully repaired external gears but an internal would be a bit trickier. Its probably not ideal but if a replacement casing isn't available maybe you don't have any other option.

http://www.practicalmachinist.com/vb/south-bend-lathes/broken-gear-teeth-best-build-up-method-199804/

spitzair · Jan 17, 2011

try www.brikers.com they might have something.

ditchdiggerjcf · Jan 19, 2011

Really, I am just trying to figure out if my case can be repaired, or should be tossed.

jrtraderny · Jan 20, 2011

How about a picture of the damage?
Real hard to say it can be fixed or not looking at a blank post........................
jr

PD Mech Steve · Jan 20, 2011

Final drive housing repair

I know exactly what you are talking about. We have repaired a few in the past with good luck so far. All depends how bad they are. How about some pictures? Email to: sales@pdmechanical.com

ditchdiggerjcf · Jan 22, 2011

I'll get pics out to you ASAP. i appreciate the help

AmerIndependent · Jan 22, 2011

Post pics on the forum so everybody can see. We might be able to take a crack at it, we do a lot of repairs too: http://americanindependentinc.com/otherservices.html

overworked · Jan 22, 2011

Call Ed Kurtz 570-282-1216, he dismantals lots of john deere yellow iron here in ne Pa.

repairing final drive case

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