[AJD] H Tranny and manual

[greg at theoldtractorcompany.com]

Bill
There isn't a JD tech manual for the H so the I&T is the only game in town.
Closest thing are the service bulletins, page after page of H oriented bulletins.
Greg


Greg Stephen
The Old Tractor Company
Stephen Equipment Company
PO Box 709
Franktown, CO 80116
303-663-5246
303-468-0377 FAX<<--GREAT WAY TO REACH ME!

On Sat Feb  5 21:06 , 'Bill Brueck' <b2 at chooka.net> sent:

>Did you get this worked out yet, Karl?
>
>I have the same model.  As you've discovered, after serial 10000 they added 
>a separate casting for the left bearing for this shaft.  I just looked at my 
>IT manual and it doesn't even acknowledge the earlier setup. I suppose the 
>official JD shop manual might help, I don't have one of those but have found 
>the parts manual to be very helpful to get the restoration process close to 
>right.
>
>I had mine apart in the process of restoration a couple of years ago, I 
>remember this cap screw being hard to get loose, but I'm pretty sure I must 
>have pulled the shaft out the left side of the casing when I got done.
>
>Let me know if I can stare and compare anything on my machine for you.
>
>B²
>Bill Brueck (brick)
>Chatfield, MN, USA
>
>----- Original Message ----- 
>From: "Karl Olmstead" olmstead at ridgenet.net>
>To: "Antique John Deere mailing list" 
>antique-johndeere at lists.antique-tractor.com>
>Sent: Saturday, January 29, 2005 10:36 AM
>Subject: [AJD] H Tranny
>
>
>> It was raining yesterday, so I got a chance to work on that '39 JD-H 
>> instead of my house.  I spent a few minutes trying to move the shifter 
>> forks with no success.  They aren't seized up, but the upper fork (1st and 
>> reverse) appears to be stuck to the left beyond first gear, and it has 
>> shoved the lower fork into some gear; the net result being that the 
>> transmission is in two gears at once.  Tractor won't roll.
>>
>> I finally came to the conclusion that I need to pull the shifter shaft and 
>> the shifter forks, so that I can reach down below them and re-position the 
>> sliding gears myself.
>>
>> As Frank G. warned me, the '39 H tranny is different from later models. 
>> For example, later models have a 'shifter shaft bearing' bolted to the 
>> left side of the transmission case.  The '39 simply has a hole in the side 
>> of the case.
>>
>> At any rate, after loosening the set screw and unscrewing the 'lock 
>> screw', which seems to serve no purpose, I attempted to undo the adjusting 
>> screw, which screws into the left side of the transmission case and 
>> tightens down on the end of the shifter shaft.  No go.
>>
>> I took the opportunity to make a special tool for the job on my vertical 
>> mill.  3/4" drill rod, with one end milled into the shape of a 1/8" wide 
>> screwdriver blade, the other end made hexagonal so that I could put a 
>> wrench on it.  Nothing beats quality time spent using macine tools!  Tried 
>> out the new tool, but the blade began to bend.  Guess I'll have to take 
>> the time to heat treat the tool before I try again.  And soak the screw 
>> with penetrating lube.
>>
>> Am I headed in the right direction?  I am assuming that the adjusting 
>> screw has to come out before I can remove the shifter shaft, since the 
>> screw presses on the end of the shaft (and plugs up the hole through which 
>> the shaft must pass).
>>
>> -Karl
>>
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>
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