2tractors

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My friend has a selecto speed and the inching pedal went to the floor board and we're thinking the spring just broke because when lifted back up the tractor moves normal. My question is can the spring be changed with just a top cover pull or does it require a split?? On another note the pto seems to stop turning with the implement engaged or at least slow down and am wondering if milky fluid in the tranny can cause that problem?
 
Would help to know which model tractor. That mentioned, 1st. Question: the inch pedal return spring can be accessed from the top. PTO problem could be one or two of several causes. I.e. ORC or TLC, depending on tractor. Worn clutch plates, bad hydraulic valve on PTO, and cable adjustment. All needing the correct manual for that unit and following the procedure precisely.
 
What Tequila said.

Do not attempt to R & R the top cover until you have the proper Ford service manual and have read and understood the procedures for doing so.

Dean
 
In addition to what the others have said, milky fluid means water contamination, and if the temperatures are low enough the water can freeze or at least turn the milky mixture to slush, which will impair the capabilities of the hydraulics to make the transmission and PTO function properly.
 

That happened to me a few years back. The return spring wore through at the bracket that holds one end. You absolutely HAVE to read and understand how to remove the top cover and disconnect the shift and PTO cables without shooting yourself in the foot. Plan on draining down the SOS and find both parts of the spring, otherwise the little hooked end will end up in something expensive.
 
Thanks for the info,It's a gas model. I'm pretty sure it's a 981 since it has the dual speed pto and no override clutch and does tlc stand for something besides tender loving care? He does have a manual I haven't had the chance to read up yet. Pto handle pulls about about 1 an 1/2 inches.
 
(quoted from post at 09:07:50 02/10/17) Thanks for the info,It's a gas model. I'm pretty sure it's a 981 since it has the dual speed pto and no override clutch and does tlc stand for something besides tender loving care? He does have a manual I haven't had the chance to read up yet. Pto handle pulls about about 1 an 1/2 inches.

I think Tequila is referring to "torque limiting clutch". The earlier versions of SOS transmissions had over riding clutch system. That's what my 1961 has. The selector for these had diagonal red hash marks over the speeds that the tractor would freewheel in. That would be annoying or dangerous on hilly land. Flatter than a pancake where I live, so no problem for me.
 
(quoted from post at 07:55:12 02/10/17)

The earlier versions of SOS transmissions had over riding clutch system. The selector for these had diagonal red hash marks over the speeds that the tractor would freewheel in.

The ORC transmissions had red hash marks over ½ the speeds the tractor would freewheel in. Ford must not have thought there was as much tendency for it to be a problem in R1, 1 & 2. Therefore they put the marks only on 5, 6 & 9.
 
(quoted from post at 10:19:54 02/10/17)
(quoted from post at 07:55:12 02/10/17)

The earlier versions of SOS transmissions had over riding clutch system. The selector for these had diagonal red hash marks over the speeds that the tractor would freewheel in.

The ORC transmissions had red hash marks over ½ the speeds the tractor would freewheel in. Ford must not have thought there was as much tendency for it to be a problem in R1, 1 & 2. Therefore they put the marks only on 5, 6 & 9.

Well, yeah. Then there's that. :D About 30 years ago, I learned that R1 would freewheel also when I backed into a pond with a Ford scoop full of sand. Good idea to keep ones brakes adjusted on these old girls.
 
So the orc is internal, I'm use to the ones that hook up to pto. Anyone know the secret to unhooking the 2 cables? We plan a complete drain of tranny case and a through search for all broken parts.
 
Just asked owner to look at his shift selector and his hash marks are over 1,2 5,6,and 9. If I'm understanding this right then the pto can free wheel in those gears, correct??
 

The ORC we speak of here, has nothing to do with the PTO. It is one of the applied fixtures in half the ratios in your "red" SOS transmissions. It is replaced in the "blue" SOS by a DDC.

Yes, some of us know the cable secret, but until you know it, it's best to get a Ford service manual and follow it to a T.
 
(quoted from post at 10:04:04 02/10/17) Just asked owner to look at his shift selector and his hash marks are over 1,2 5,6,and 9. If I'm understanding this right then the pto can free wheel in those gears, correct??

the transmission/tractor can freewheel in those gears. It has nothing to do with the PTO.

I've never seen a shifter with hash marks over more than 5, 6 & 9, although I suppose anything is possible.
 
I don't think that the shifter markings were always changed when an ORC S-O-S was upgraded to the DDC version, so having the hash marks just means that the transmission was an ORC version when the tractor left the factory. Better for you to post the casting numbers on the side of the transmission to know if it is still the original ORC version or if it was upgraded to thew DDC version.
 

Good point, Sean! And even the casting numbers aren't absolute proof. I've seen a blue transmission in a 312259 case.
 
Think I found the "secret" in the archives way back in 07 and was posted by Larry Ncks, thanks Larry and to Dean I see where you posted to same archive to get a manual.That's good advise for
the novice and my friend is one for sure. He's a snowbird from Michigan with NO mechanical skills. His is the red model with 312359 if memory serves.
 
(quoted from post at 12:22:30 02/11/17) Think I found the "secret" in the archives way back in 07 and was posted by Larry Ncks, thanks Larry and to Dean I see where you posted to same archive to get a manual.That's good advise for
the novice and my friend is one for sure. He's a snowbird from Michigan with NO mechanical skills. His is the red model with 312359 if memory serves.

I do a band adjustment, fluid and filter change about every 3 years on my 871. You can take the postings by Larry NCKS and Dean as gospel. I have to re-read my Ford shop manual about 3 times before I remove the top cover of the transmission and you really don't want to screw up any of those parts in there. I like to lubricate the cables and look over the shift cams when I'm in there. I don't really know about parts availability on these old tractor transmissions. I pamper mine because I really like SOS transmissions.
 
I did a clutch spring in a 2000 LCG about 30 years ago, didn't have a manual, dropped a piece into the case and spent about 12 hours trying to get it out, boss wasn't real happy. Screwed up a spool for the selector when I put it back together, luckily the dealer had one, they had to punt on the price because it had been NLA for about 15 years it had probably been on their shelf 20 years. Don't think I'd try it without a manual anymore, parts are to dear to be breaking them because you want to buy some experience.
 

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