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decvt79

1999 Toro 270H model 72106 parts needed

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decvt79

I recently posted about issues with my transmission and have now identified the issue.   I removed the transmission cover and found that the final pinion bearing had failed.   Bearings and race in bottom of cover.   Now need to find replacement bearing and also a new filter.   Bearing part number from Toro is 93-0446 and is stamped with “Japan Nachi 6203”.  The gasket is Toro # 93-0478.   Any help verifying these part numbers for a TORO 270H model 72106 and also locating replacement parts or equivalents would be greatly appreciated.  My transmission serial number is 049132.  Thank you!

15B4B0E9-4880-4CED-87DA-39565221B647.png

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Achto
 
gwest_ca

The 6203 bearing is easy - likely the same in the mower deck spindles.

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peter lena

@decvt79 ah yes the infamous 6203 lubrication failure , what an opportunity !  something thats very easy to do , https://www.bing.com/search?FORM=UP97DF&PC=UP97&q=lucas+x-tra+heavy+duty+grease  , when you get that bearing , notice the wide rubber side shields on it ? small pocket flat screwdriver , carefully  remove both shields , clean cloth wipe out  "  lubricant " , finish cleaning with carb cleaner , till dry , repack to same amount with the  lucas grease .reinstall seals   heat rated to 560 deg , anti sling , and polyurea rated  ( recovering ) . done this on my mower decks , no whining bearings and no failures . only a suggestion , but those 6203 bearings are basically a ceiling fan bearing , unless they are repacked with a hi temp grease , they fail , would also use same grease in similar friction areas , pete 

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peter lena

@decvt79   , there you are , the size / shape of the bearing is very popular , its the angular heavy loading that really kills it , lubrication wise. the same bearing is used in the mower deck , mule drives , that very typically get into the whining zone very early on in usage. when I first got into horses , a glairing failure to me , was lubricant failure . since going to that  lucas hd chassis grease . zero / no failures or noise . my 3 horses have it in practically every stage of hot lubrication , also use the lucas red and tacky aerosol spray grease , in tight spot areas , linkage ends . as you build / put together your unit , look out for opportunities to improve , the function of areas . have any stiff cables ?  try synthetic super lube , comes in paste /  small tube oil , makes things work with ease , good luck with it , pete 

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decvt79
22 minutes ago, peter lena said:

@decvt79   , there you are , the size / shape of the bearing is very popular , its the angular heavy loading that really kills it , lubrication wise. the same bearing is used in the mower deck , mule drives , that very typically get into the whining zone very early on in usage. when I first got into horses , a glairing failure to me , was lubricant failure . since going to that  lucas hd chassis grease . zero / no failures or noise . my 3 horses have it in practically every stage of hot lubrication , also use the lucas red and tacky aerosol spray grease , in tight spot areas , linkage ends . as you build / put together your unit , look out for opportunities to improve , the function of areas . have any stiff cables ?  try synthetic super lube , comes in paste /  small tube oil , makes things work with ease , good luck with it , pete 


thanks for the information.  This bearing is not sealed and is submerged in the transmission hydraulic fluid.   I was told by a friend to use a synthetic fluid when I rebuild it which I will likely do.   I’m now looking for the filter for my K61A transmission.   There are a few online from various vendors but not positive they will fit.   Do you have any recommendations?

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peter lena

@decvt79  sorry to confuse you , thought it was a self grease mount , agree with the synthetic  trans fluid , as long as the filter  meets the specs for a  K 61A TRANS , you should be good , you might check on the temp range on the atf , was noticing that honda has a specific  temp rated oil , to insure function , you might find some related specs on your trans , that has specific atf  chemical make up . just ask that trans oil question on line , you could check , THE OIL GUY , usually has good info , pete 

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peter lena

 @decvt79  found it , bob the oil guy , looks like 5-30  synthetic oil , check out the site , pete

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