7060 power director

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   My 7060’s power director quit working while chisel plowing. I shifted to low side to turn and back to high right before I dropped the plow into the ground. It took (longer than normal) a few seconds to shift and and there was a loud clunk. When I got to the other end it would not downshift to low side. The foot pegs work as they should and linkage is good. The tractor is showing 4200 hours and meter is working. I have 6 hours on since changing all 3 hydraulic filters and yes I did them one at a time and replaced with agco filters . All other hydraulic functions are working fine and I continued for about 3 more hours before quitting for the day. I now here a whine noise from one of the pumps which leads me to believe there is a restriction somewhere. Any thoughts on where to start.

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BfChris Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 Apr 2020 Location: WIllinois Points: 11	Post Options Post Reply Quote BfChris Report Post Thanks(0) Quote Reply Topic: 7060 power director Posted: 29 Apr 2022 at 9:01pm
	My 7060’s power director quit working while chisel plowing. I shifted to low side to turn and back to high right before I dropped the plow into the ground. It took (longer than normal) a few seconds to shift and and there was a loud clunk. When I got to the other end it would not downshift to low side. The foot pegs work as they should and linkage is good. The tractor is showing 4200 hours and meter is working. I have 6 hours on since changing all 3 hydraulic filters and yes I did them one at a time and replaced with agco filters . All other hydraulic functions are working fine and I continued for about 3 more hours before quitting for the day. I now here a whine noise from one of the pumps which leads me to believe there is a restriction somewhere. Any thoughts on where to start.

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21481	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 29 Apr 2022 at 10:20pm
	It sounds like a seizure of the input shafts in the front of the transmission, leaving you with high side only. You will notice your 1800 RPM light will blink when you change the floor buttons but no ground speed actually changes.

BfChris Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 Apr 2020 Location: WIllinois Points: 11	Post Options Post Reply Quote BfChris Report Post Thanks(0) Quote Reply Posted: 30 Apr 2022 at 5:55am
	You are correct Doc. The light does flash. What is involved in the repair for that?

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21481	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 30 Apr 2022 at 6:54am
	Pretty ugly. Engine/front end has to be rolled away about 5 feet. Power Director clutch pulled out of transmission. Input shafts and lower front gear pulled out of tranny. Then remove cab floor and shift cover and carefully cut/trim low range input shaft shifting dogs off so it can be removed without removing the whole transmission from the tractor. This is an unauthorized way to do it, but it works just fine and saves a lot of work. This akso assumes the lower gear on the inside of the wall has suffered no damage when the seizure occurred.

BfChris Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 Apr 2020 Location: WIllinois Points: 11	Post Options Post Reply Quote BfChris Report Post Thanks(0) Quote Reply Posted: 30 Apr 2022 at 7:58am
	And there is probably no way to confirm this until diving into it I assume…

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21481	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 30 Apr 2022 at 8:19am
	The damage to the bottom/inside the wall gear ?? Remove cab floor and shift cover, drain the oil and visually (with a good flashlite) inspect that gear while rotating it. You are looking for any tooth damage. Might need a mirror. Once the tractor is split and input shafts removed it is very easy to see. Whenever I repaired a tractor for this type of failure, it was just a matter of how deep I had to go to get the job done. If the tranny had to come out, well, it came out. If I was able to do it without pulling the tranny, that's what happened. If there are no noises when operating it, you can actually use it like it is. You'll only have 10-speeds instead of 20. Edited by DrAllis - 30 Apr 2022 at 8:21am

BfChris Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 08 Apr 2020 Location: WIllinois Points: 11	Post Options Post Reply Quote BfChris Report Post Thanks(0) Quote Reply Posted: 30 Apr 2022 at 8:55am
	Ok, pardon my ignorance on this. Yes i am looking for a way to confirm that input shaft is for sure stuck and why this happened without diving too deep into a repair I’m not really set up to make (based on knowledge and a facility to do it in). I trust your judgment but I was wondering if there are any possible checks I should / can make before attempting this repair. I did continue to run it for a while after it occurred and everything seemed normal. When I throttled down and got out that is when I could here a pump whining. Just wanting to rule out a possibility of pump/seal failure or maybe even a stuck valve or collapsed filter. Thank you for your help. Also, what is the worst that can happen if I just continue to run it in 10 gears?

DougG Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 20 Sep 2009 Location: Mo Points: 8268	Post Options Post Reply Quote DougG Report Post Thanks(0) Quote Reply Posted: 30 Apr 2022 at 2:17pm
	Im just being curious here- wondering why the shafts weld together? Low oil pressure ? Bearings going bad?? Ive heard of this - I do remember when I first started working on these laughed about the hollow injector pump bolts- it worked - the the shaft in a shaft - very creative enginering

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 21481	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 30 Apr 2022 at 4:48pm
	It is an unfortunate failure that doesn't happen often, but does happen occasionally. I've usually blamed it on low oil level in the transmission (dipstick in the cab). The 8000 series models addressed this area of seizure with a design change. Whenever I fixed one (with used parts) I always machined the inside of the larger shaft a bit to create more clearance so they shouldn't ever do it again. There may be some debris that winds up down by the suction screen from this failure. Other damage ?? The low range input shaft will not be supported as it was designed because it is now twisted off and the front needle bearing isn't doing anything. Don't know for certain with the results might be over time. There may be others who would share their experiences on long term usage. As far as the diagnosis, it is accurate, based on what you have described.