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#2Son 
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 Topic: Hidden Transmission Plug
Posted: 12 Jan 2024 at 7:03pm |
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#2Son
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Posted: 12 Jan 2024 at 7:12pm |
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In the brake housing, part of the Transmission case, is a port that is in line with the access hole on the side of the housing. Whatever plug was in this port came out while I was mowing and I lost all the transmission fluid. I cannot find this plug in the parts manual or the service manual. Can anyone help me with this? I can't order it if I don't know size, threads, etc.
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steve(ill)
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Posted: 12 Jan 2024 at 8:48pm |
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are you talking about plug #8 ?... I dont know the tractor.... or the size of the plug, but there is a fiber or copper washer on it, so im guessing a fine thread BOLT thread... You can make a GUESS.... maybe 5/8 or 3/4 inch ??? Get a couple bolts at the hardware store and test ? Might even be able to use a short bolt and gasket ?
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Like them all, but love the "B"s.
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JoeM(GA)
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Posted: 12 Jan 2024 at 8:50pm |
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always kinda helpful to give a model number
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Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB
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Fred in Pa
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Posted: 13 Jan 2024 at 5:58am |
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looks to be a D 17 housing
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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DrAllis
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Posted: 13 Jan 2024 at 6:10am |
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We're not talking the horizontal "pin" that holds the lift arm cylinder in place are we ??? The oil drain plug is directly above the drawbar and directly under the seat shock absorber, not hard to see and not hidden.
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#2Son
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Posted: 13 Jan 2024 at 7:52am |
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Sorry, this is a D17. Item 1 on the drawing is pointing at the housing. Just to the right of the 1 is an access hole on the outside of the housing. That hole gives access to the brake area. Directly in line with that hole is a hole to the differential. It is threaded. There is no reference in the Maintenance Manual or the Parts Manual, that I can find, as to what type of plug or why it is there. There is no need for a drain there as the drain is on the bottom, item #8.
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steve(ill)
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Posted: 13 Jan 2024 at 8:11am |
OK... here is the horizontal hole.... Is the THREADED hole below this pointing UP ? Like a pin retainer bolt ?
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Like them all, but love the "B"s.
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#2Son
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Posted: 13 Jan 2024 at 11:59am |
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No. If you were to put your finger in that hole you would be pointing at the hole I'm talking about.
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#2Son
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Posted: 13 Jan 2024 at 12:31pm |
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BTW the hole I'm talking about cannot be seen unless the brake toggle shoe is removed.
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DrAllis
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Posted: 13 Jan 2024 at 2:04pm |
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That's that lower lift arm cylinder pin. The 3/8" bolt must have fallen out and the pin has moved outward enough to expose the Oring and now it leaks oil. Get a flashlite and look inside the hole. There should be a 3/8" bolt laying there loose.
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#2Son
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Posted: 13 Jan 2024 at 3:06pm |
 
In the first picture the hole is in the lower right. The second picture is looking straight on through the outer access hole.
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steve(ill)
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Posted: 13 Jan 2024 at 7:21pm |
John, i personally have never pull or installed the pin... Watch this movie at 11:00 to 12:00 minute mark and you will get an idea of WHAT is inside.. PIN + BOLT
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Like them all, but love the "B"s.
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steve(ill)
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Posted: 13 Jan 2024 at 7:26pm |
also watch this about the 9 minute mark on removal...
I believe the small bolt in the end of the PIN sets the DEPTH so you dont poke it in too far... then you install a bolt from the BOTTOM to hold the shaft in place ??
Like Dr said... look in the HOLE and you might see a small bolt and washer.. And the "thread" should be in the end of the PIN .. which i believe is 1/2 inch fine thread ?
Edited by steve(ill) - 13 Jan 2024 at 7:29pm
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Like them all, but love the "B"s.
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DrAllis
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Posted: 13 Jan 2024 at 8:50pm |
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Series 3 ?? or Series 4 ??? makes a difference.
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#2Son
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Posted: 14 Jan 2024 at 9:34am |
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Thank you all. I'm beginning to get the picture. It is a series I, 1959. Is there anyway it could have fallen out inside the differential case?
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DrAllis
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Posted: 14 Jan 2024 at 1:14pm |
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You must be missing the square headed set bolt that secures the cylinder pin. It goes in from the bottom. The hole in the end of your pin is to attach a long 3/8" bolt to pull/push the cylinder pin into place from the outside. I have to laugh that this guy went to all the trouble to reseal the lift arm cylinder and reused the old hydraulic hose !!!!!!!!!!!! DUH !!!
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