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Subject: Sherman install

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Rick. D    Posted 05-12-2018 at 21:27:22 [URL] [DELETE]        [Reply] [Email]  
  • Sherman install
  • Received my grandfathers 8n and have started the restoration and discovered the step up/down Sherman. I have studied the reinstall instructions at several sites and I pose this question. Why remove the Sherman multiple times for the preload on the bearings when the cup on rear applies the same pressure to the bearing cups. If I understand correctly with a Sherman you donít use the pound inch preload it is done by feel only. Thanks

    Rick D    Posted 05-13-2018 at 18:08:23 [URL] [DELETE]        [Reply] [Email]  
  • Re: Sherman install
  • Has anyone ever figured out the pre load poundage with the trans removed. Iím thinking the poundage will increase proportionally to the number of bearing sets. Of course Iím probably being OCD about the preload. I will measure when installation is complete per the feel method.

    Kirk-NJ    Posted 05-14-2018 at 15:38:15 [URL] [DELETE]        [Reply] [Email]  
  • Re: Sherman install
  • It's somewhere around 20 or so. Check your repair manual for numbers. I'm out of town so I can't look it up for you. Feel system works ok. You don't want it to tight
    If trans is double split don't use any on the Sherman and preload from he rear of trans.
    If you don't have excessive wear on the bearings or cups it's likely you could use the same amount of shims. If too loose take the thinnest shim out an go from there.

    Kirk

    John Smith    Posted 05-13-2018 at 16:33:57 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Sherman install
  • The Sherman install instructions assume itís being done with only a front split where you canít access the rear bearing retainer on the main shaft. If you have the transmission removed completely then doing all the shimming from the rear would be preferred. You have the right idea.

    Tim Daley(MI)    Posted 05-13-2018 at 13:31:29 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Sherman install
  • HiYa Rick-
    I don't have much experience with Shermans, but can pass this on to you if you don't already have it. It is from John Smiths' old site, now archived, on all the Shermans with ads, brochures, and how-to's on rebuilding them. I don't know if this has any answers for you, but thought I'd share nevertheless...


    Tim Daley(MI)

    Rustyal    Posted 05-13-2018 at 07:16:13 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Sherman install
  • You donít have to remove it several times. There is a chance it will be right the first time. But I would try it with different shim thickness. You donít want it to tight for sure.

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