Allis 7060

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   Hi , I have a transmission problem on a 2979 Allis Power Director transmission. I suspect the transmission brake has failed . The tractor drags when you turn the starter on & when you are in neutral you can not put in in gear due to gear clash . Cables are good free play is good I have 200 psi at the tesr port , fork is not missing the large washer and the allen key is tight , any other suggestions would be appreciated before I split the tractor .Thanks in advance…Frank

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FrankB Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 12 Aug 2014 Location: Ontario/Canada Points: 61	Post Options Post Reply Quote FrankB Report Post Thanks(0) Quote Reply Topic: Allis 7060 Posted: 14 Jun 2017 at 9:19pm
	Hi , I have a transmission problem on a 2979 Allis Power Director transmission. I suspect the transmission brake has failed . The tractor drags when you turn the starter on & when you are in neutral you can not put in in gear due to gear clash . Cables are good free play is good I have 200 psi at the tesr port , fork is not missing the large washer and the allen key is tight , any other suggestions would be appreciated before I split the tractor . Thanks in advance…Frank

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Lynn Marshall Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Dana, Iowa Points: 2446	Post Options Post Reply Quote Lynn Marshall Report Post Thanks(0) Quote Reply Posted: 14 Jun 2017 at 9:59pm
	The brake disc could be worn out, the pin in the brake piston could be sheared off,or the plates in the power director could be warped. If you believe that the clutch cable is adjusted correctly, then I would split it and look at the power director clutch.

MACK Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 17 Nov 2009 Points: 7664	Post Options Post Reply Quote MACK Report Post Thanks(0) Quote Reply Posted: 14 Jun 2017 at 10:15pm
	Take all free pay out of cable with engine off. MACK

Dans 7080 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 05 Feb 2010 Points: 1146	Post Options Post Reply Quote Dans 7080 Report Post Thanks(0) Quote Reply Posted: 15 Jun 2017 at 5:33am
	Make sure the cable in the top hold down is all the way to the front before tightening. A small adjustment will make a big difference.
	When someone tells you Nothings Impossible, Tell them to slam a revolving door

FrankB Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 12 Aug 2014 Location: Ontario/Canada Points: 61	Post Options Post Reply Quote FrankB Report Post Thanks(0) Quote Reply Posted: 15 Jun 2017 at 8:40pm
	Thanks for the help once again . I have adjusted the cable . The tractor was working perfectly all morning , stopped for break then it would not go in gear , lots of gear clash and if you put it in gear ,put the clutch pedal down and tried to start the tractor the starter would drive the tractor forward . Seems like a sudden failure to me . Maybe the pin in the piston is sheared . Thanks all for the suggestions tractor is now ready to split , I"ll get to that job first thing Saturday .

Lynn Marshall Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Dana, Iowa Points: 2446	Post Options Post Reply Quote Lynn Marshall Report Post Thanks(0) Quote Reply Posted: 15 Jun 2017 at 9:12pm
	Sure sounds like warped clutch discs. If that has happened,it may have damaged the brake disc also. You will need to remove the transmission to get to the brake unless you want to reach up through the hole where the hydraulic pumps mount.

FrankB Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 12 Aug 2014 Location: Ontario/Canada Points: 61	Post Options Post Reply Quote FrankB Report Post Thanks(0) Quote Reply Posted: 16 Jun 2017 at 9:17pm
	Hi Lynn , appreciate the help , Don"t know if you recall but this is the tractor that originally came to this site for help about three years ago . I had broken pinion gear , broken reverse idler gear and a broken gear in the range transmission , when we did that repair I replaced the friction discs and the spacers , the tractor has only worked 3 to 4 hundred hours per year since then so you are looking at 1000 hours max on basically a brand new clutch , the tractor has worked flawlessly since then until this happened , and the failure happened so abruptly it's suspicious . Thank's again for the help . I will be plotting the tractor on Monday , should be interesting . Thanks

FrankB Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 12 Aug 2014 Location: Ontario/Canada Points: 61	Post Options Post Reply Quote FrankB Report Post Thanks(1) Quote Reply Posted: 19 Jun 2017 at 8:00pm
	Hello Lynn Marshall , Split the tractor , Took out the power director and you were 100% bang on the money,the spacers are blue from heat and the friction discs look like frisbee's they're so bent . I also discovered another problem , it appears this tractor has been apart at one point in time and put a power director unit in from a 7010 as it only has 5 of each disc instead of 6 . My next question is would 1 disc less overload the clutch with the 40 -50 hp difference or should that clutch be able to handle the difference . Is the difference in the thickness of the piston , as all other part #s look to be the same between a 7010 & a 7060 . Great call and great help from this site once again , fantastic resource thank you folks for providing it .

MACK Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 17 Nov 2009 Points: 7664	Post Options Post Reply Quote MACK Report Post Thanks(0) Quote Reply Posted: 19 Jun 2017 at 9:03pm
	Piston is the difference. Either get a different piston or machine that one down. Check pressure when you get it back to gather. Has to be a reason for the failure, don't happen that offend. MACK

Lynn Marshall Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Dana, Iowa Points: 2446	Post Options Post Reply Quote Lynn Marshall Report Post Thanks(0) Quote Reply Posted: 20 Jun 2017 at 8:02am
	Like Mack says, I would be looking for good used pieces from salvage or you can machine down the piston you have to allow another set of plates. There should be plenty of good used friction and separator plates out there to choose from. They are extremely tough and don't usually give much trouble. Hopefully,the transmission brake is still in decent shape.

FrankB Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 12 Aug 2014 Location: Ontario/Canada Points: 61	Post Options Post Reply Quote FrankB Report Post Thanks(0) Quote Reply Posted: 20 Jun 2017 at 7:24pm
	Hello Lynn & Mack , thank you so much for the help , you guys are awesome . I work with someone who is a skilled trades person, he has lathes,surface grinders & milling machines so turning the piston down may be feasible , where can I find the dimension for the thinner piston ,another option would be to put a drive disc & a separator together mic them and turn the piston down that much,is that feasible . The plates & discs I will just order from Agco , the other question would be why this happened,is it possible low hydraulic fluid could be the cause . I have some pics and will try to post them when I can thank you guys again really appreciate the help as where I live there are no more Allis mechanics or dealers still operating ,finding help is difficult ….Thanks Frank

Lynn Marshall Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Dana, Iowa Points: 2446	Post Options Post Reply Quote Lynn Marshall Report Post Thanks(0) Quote Reply Posted: 20 Jun 2017 at 10:27pm
	I probably have the thickness dimension somewhere in my materials. I doubt that low oil would be the cause of your problem. Low pressure could be though. Or it could have been to much power for the amount of discs it had.