John Deere 445 tuff torq k91 rear end disassembly and seal replacement with part numbers
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- Опубликовано: 5 ноя 2023
- Watch me take apart the hydrostatic rear end and reseal this neglected beast
#johndeere #rebuild #maintenance
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Gosh, my inner self was screaming use brake clean to get all the grime off!! lol
Appreciate you taking the time to do this. There are not many videos showing the procedure. Although, cleaning before disassembly would be advised. A project, I will need to tackle before next year's mowing season.
I 100 percent agree with you that cleaning is important and should be done before opening up machinery. I noticed most of the seals had failed and was trying to prevent water from entering the case. there was so much caked up oil and grass i couldnt identify where it was coming from in the tractor...now that it's sealed I will clean it, spray degreaser and scrub it down.
Why would you not clean up the axle with a pressure washer first? All that dirt in the works!
Nice to witness a orocedure that I may or may not have to do in the future. A step that eluded me is the alignment of the bearing and plate in the motor during reassembly. Perhaps installed in the cover before mounting?
It is installed into the housing and there is a race that keeps everything square....pay special attention to ensuring the bearing and plate do not move, mine shifted and was no longer square against the race and caused some damage to the race...it was minimal and I shut it down after I heard the binding noise. I removed the high spots from the race as instructed by the machine shop and reassembled ensuring everything was square and nothing moved and it went together very easy. I was lucky it did not destroy the race or housing. Parts for the rear end assembly are hard to come by, I was in contact with tuff torq for 3 weeks and their support was garbage, could not even find the rear end in a manual. Learn from my mistakes please! That's why I document and share my content. I hope this helps.
Great content but do yourself a favor and buy a decent set of snap ring pliers. Pittsburg makes a good set, and they can be adjusted to work on both internal and external snap rings.
Thanks for the tip....I'm in the market for a new set...mine are all from different sets throughout the years lol
Nit exactly sure, but I believe the witness marks (alignment dots) on the pump components are to ensure reassembly to exact position relative to each other. Since the fluid is pushed through by the mechanics of an ellipse, the mating surfaces must match as they wear in together. Similar to the mating process of piston and rings to the cylinder walls if an engine.
Makes sense...I saw the marks upon inspection on the cog but I did not see what or where they aligned with...the cog also was keyed and that was where the dot was so I tried my best to put it back where I found it
How is that bearing lubricated does it sit in oil, get sprayed?
It's a wet bearing, oil lubricated
The reason these o rings and seals fail is because people do not clean or maintain their equipment.
Spot on!
What did all those parts cost?
It was about $250.00-$300.00 including the oil
@@modestmechanics181 that oil ain’t cheap!!