Sherman maintenance

Boris

New User
I just got a 9N with a Sherman step-up, step-down transmission. Whenever I get a new "toy", I usually go through and change the fluids and other things. But it dosen"t look like it would be easy to even check the oil much less change it in the Sherman. Does this mean that Mr Sherman didn"t think it was necessary?
The Sherman shifts ok and stays in gear. There is a slight gear wine but nothing significant. It goes away when I put it in the "conventional" position, where I hear no noise (even from the main transmission.
What do you guys think? If it ain"t broke, don"t fix it, or just do it?
 
The Sherman contains about a pint of the same oil that is in your trans, hydraulics and rear end. It exchanges so no need to change it. If you ever install one it is necessary to add oil when installing but after that not necessary.
 
Thanks for the reply. When you say it exchanges do you mean that the Sherman is exposed to the main transmission oil?
 
Indirectly, yes.

Oil from the main transmission circulates through the Sherman and back to the main transmission.

Dean
 

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