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Sherman Combo - stuck!

G

graham_in_NJ

Member
Was reading Pomesters excellent post regarding the Sherman Combo install. I forgot I had one on my TO-30! However the shifter is stuck. Probably why I forgot about it. I pulled the steering box off to see if I could get it unstuck, but it appears that there isn't much I can access. The shifter handle moves slightly, so it looks like the innards are jammed up (not the shifter bound up in the casting bore). The tractor moves just fine, although I have no idea if it's in high, low or direct/conventional. I'm guessing conventional, as the speeds "appear" to be normal.

So....Is there any shortcuts to get the Sherman cover off to check the forks and see what is going on inside? I can get to the two fronts, but the rears may not be possible while installed.

If not, I'll have to pop the engine off to get the thing out to assess it...

Thanks in advance!
 
The combo on my N would not shift. I soaked it with ATF and worked it every time I walked by it. Just shake it, just not enough to break the handle. It came loose pretty quick.
 
Go to YouTube and punch in my name Kirk-NJ and some videos will
come up about the Sherman trans and how to shift the different
ones.
You can pop the steering box and access thru the top. Go back to
pomester's photos and you can see two rails. Spray those with
some BP Blaster and both sides of the case top where the shifter
attaches too. Try working lever while spraying. It might be
enough to free it up.
The Sherman tops had an open rail system and later a close rail
system, where the rails are not exposed. I have never seen a
closed top rail system on the Fergusons.
I have been able to take the top cover off and remove it thru
the steering box hole on the later hundred series Fords but it's
a fight coming out and going back in is even worst cause the
forks have to line up just right. I don't think you can remove
yours from the steering box hole.
Try the spray and a little pressure and you can even tap the
exposed rails will a small hammer. And I said tap not wail. If
You can't free it up it might be easier just to split the
tractor and pull it out to work on it.
Post back your results.

Kirk
 
I should add that before taking the steering box off you can try
taking the shifter handle off and spraying some Koils or BP
Blaster in the hole. Put the handle back on and tap lightly with
small hammer while working back and forth.
 
Thanks Kirk.....I'll do that tonight and try over the course of the weekend to see if I can free it up

BTW you have some great videos - liked the 8N workout video :)
 
you could remove the two 'tower caps' and shoot a bit of penetrating oil down the holes - removal of the springs and detent balls would give you an indication of the condition inside the shifter mechanism

David - returned home after being away for two weeks and ready to get back to the shop...
 
I would be interested in a picture of the link that runs from the starter to the transmission over the top of the Sherman - I will be picking up a custom piece on Monday but wonder how yours was done - http://forums.yesterdaystractors.com/viewtopic.php?t=1344326
 
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