This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


7080 dual PTO install

 Post Reply Post Reply Page  12>
Author
Message
 Rating: Topic Rating: 1 Votes, Average 5.00  Topic Search Topic Search  Topic Options Topic Options
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Topic: 7080 dual PTO install
    Posted: 25 Oct 2015 at 9:01pm
All the implements I have are 540 so I decided to convert my latest purchase, 7080, to dual 540/1000 PTO.

This is what I got at the junkyard, I pulled it out of a 7045 rear end.  They were nice enough to flip it upside down which made it awesome to pull out.

This is what it looks like with the lower plate pulled, you can see this shaft is just made for the 1000 gear.

This is a shot of the clutch pack just above the previous shaft asm.  It has the spacer installed on the right of the picture instead of a 540 gear.

I decided to dismantle everything to clean and reseal.  This is the lower shaft asm.

This is the clutch pack asm.

This is where I ran into a little issue.  I went to put the junkyard gear on the clutch pack and it was a no go.  The original 1000 gear and spacer is on top, you can see it is about .250 wider than I can get on the shaft.  So back to the junkyard I go, guess I should have looked at the parts book a little closer, remember in addition to the parts in the first picture you need the additional gear on the end of the clutch pack.  The FSM says to set the preload on the clutch pack bearing set to 5-10 inch pounds, I tried to go with the lower end as they are used bearings, came out to 7 inch pounds.

This is the new clutch pack setup installed.  That mark on the housing must have been from a previous repair(had red silicone on the lower plate) I didn't find any evidence as to where it came from.  I took apart both the pistons, clutches, all looked good.  I reseal the pistons as I like to make sure everything is good to go.  The apply piston is teflon seals and the brake piston is cast rings.  I have to say they looked perfect, but I figured it didn't cost much for seals.

This is the lower shaft asm installed.  The FSM says to set it to 20 inch pounds more than the nominal turning torque.  My dial type wrench only goes to 150in lbs and it maxed it out so the next bigger one I have is digital and that was difficult to get a correct turning torque, got it narrowed down to 185in lbs turning.  I then tightened it up to an additional 20 in lbs.  If I was going to do any more of these I would get a 250-300 in lb DIAL torque wrench.  I changed the 2 axle filters filled it up, works perfect, nice and quiet.  I know this is a long post, but everyone likes pictures and it does come up time to time about how to do this.
Back to Top
Sponsored Links


Back to Top
CAL(KS) View Drop Down
Orange Level
Orange Level


Joined: 18 Sep 2009
Location: Chapman, KS
Points: 3793
Post Options Post Options   Thanks (0) Thanks(0)   Quote CAL(KS) Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 2015 at 9:17pm
excellent post with pictures and descriptions.  this should be made into a sticky for all to see what is necessary when converting 1000 only to dual pto
Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 2015 at 10:06pm
This is the parts list I used for this project.

70226012 Diff drain plug gaskets

70244461 PTO brake clutch end seal

70927925 PTO brake clutch inner cover oring

70923596 PTO brake clutch outer cover oring

70923663 PTO lines to outer clutch cover orings (2)

70925310 PTO shaft housing oring

70261957 PTO shaft large outer seal (dual 540/1000)

70928737 PTO shaft inner seal (dual 540/1000)

70923933 PTO clutch housing shaft orings

70253453 PTO clutch piston inner seal

70248064 PTO clutch piston outer seal

70267622 PTO brake clutch piston inner seal

70267623 PTO brake clutch piston outer seal


Back to Top
Ron(AB) View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2009
Location: Alberta
Points: 959
Post Options Post Options   Thanks (0) Thanks(0)   Quote Ron(AB) Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 2015 at 11:25pm
Very Helpful!
I have this on my "to do" list on a 8070.
Thanks again.
Back to Top
aras View Drop Down
Orange Level
Orange Level


Joined: 28 Jul 2011
Location: Weston, WI
Points: 665
Post Options Post Options   Thanks (0) Thanks(0)   Quote aras Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2015 at 9:26am
Well done!!!
Back to Top
Kevin in WA View Drop Down
Orange Level Access
Orange Level Access


Joined: 08 Feb 2010
Location: Lynden, WA
Points: 612
Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin in WA Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 2015 at 10:47am
Pretty sure the tooth count on that 7080 clutch pack gear is different also.
Back to Top
charlesbendal View Drop Down
Silver Level
Silver Level


Joined: 28 Nov 2015
Location: Fryburg, Pa
Points: 92
Post Options Post Options   Thanks (0) Thanks(0)   Quote charlesbendal Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2016 at 7:17pm
is their any way to get the pictures back up on this post i would love to see it

Back to Top
shameless (ne) View Drop Down
Orange Level
Orange Level
Avatar

Joined: 08 Jul 2016
Location: nebraska
Points: 7463
Post Options Post Options   Thanks (0) Thanks(0)   Quote shameless (ne) Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2016 at 10:53pm
me too...can't see the pics
Back to Top
Orange Blood View Drop Down
Orange Level
Orange Level
Avatar

Joined: 29 Nov 2010
Location: ColoradoSprings
Points: 4053
Post Options Post Options   Thanks (0) Thanks(0)   Quote Orange Blood Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2016 at 11:01pm
The only way, would be for the original poster to upload them again, using the same file names.  This happens anytime someone purges old pictures as there is a limit to how much we can have uploaded at any one time.
Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2016 at 9:29am
Like was said before you have to delete old photos before posting new ones.  I understand their server space is limited for storage.  I have them on the computer and will get them posted tonight.
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2016 at 8:20pm
Well I re uploaded the pictures, looks like they are there.  Of course I had to delete some others to do it, oh well.  Here is one more I had that was not on the original post.

Just the back half, empty.
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2016 at 8:22pm
It is still working great, no leaks and quiet.
Back to Top
Tcmtech View Drop Down
Orange Level
Orange Level


Joined: 15 Apr 2015
Location: Minot ND
Points: 310
Post Options Post Options   Thanks (0) Thanks(0)   Quote Tcmtech Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2016 at 9:04pm
I did the same conversion to our 7050 by swapping the 7050's 1000 RPM single speed with the dual speed PTO and clutch from our 8030 that just does loader work. 

Worked great all winter until I got into baleing this summer and somehow that pin that holds the crown nut in place broke in half and came out so I had to go back in and replace it.  Shocked

Back when I did my swap I drilled and tapped the bottom access plate so that I had a drain plug there. 

That  made the  going in and replacing the two seals and pin (8 or 10ga cotter pin now)  so much cleaner faster and easier to do!     
Back to Top
charlesbendal View Drop Down
Silver Level
Silver Level


Joined: 28 Nov 2015
Location: Fryburg, Pa
Points: 92
Post Options Post Options   Thanks (0) Thanks(0)   Quote charlesbendal Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2016 at 11:28am
This is a fantastic post does anyone have an estimate on what the parts would cost from a salvage yard?
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2016 at 4:48pm
It's been about a year since I did this. The salvage yard I got the parts from was getting ready to be sold and I knew the owner fairly well so he let me pull the parts myself and charged me $400. I'm pretty sure that was a better deal that normal. The seals/filters from agco were about $300 if I remember correctly.
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2017 at 9:46am
I had a request to repost these pictures.  They had been deleted due to space limitations on the server.  Last time I saved them in it's own folder so it was a little quicker.  Is there any way to put this in the knowledge section?  Just a thought as I have gotten quite a few questions on it from time to time.
Back to Top
chadn View Drop Down
Bronze Level
Bronze Level


Joined: 17 Jun 2017
Location: WI
Points: 3
Post Options Post Options   Thanks (0) Thanks(0)   Quote chadn Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2017 at 4:53pm
Thanks for posting the pics. Makes it easier to follow.

So what I am seeing is, you used your 7080 rear end. 7045 guts inside.
I see the 5 bolt pattern on the housing, correct.

Looks like I need to hunt down a clutch pack assembly and lower shaft assembly.
7020 thru 7050 would work ?
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2017 at 7:04pm
I believe you can use parts from 7010 thru 7060, and 8010 thru 8050.  There are some good people here that should be able to confirm or correct that.  It makes the tractor much more useful for my operation, had no problems with it since I changed it over.
Back to Top
Lynn Marshall View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 13 Sep 2009
Location: Dana, Iowa
Points: 2344
Post Options Post Options   Thanks (0) Thanks(0)   Quote Lynn Marshall Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2017 at 10:14pm
I believe that the higher horsepower tractors used 5 friction and separator discs whereas the smaller tractors only used 4.  I would be sure to use a clutch pack with the extra plates in it. They can be added to the pack by just moving the snap ring to a different groove.
Back to Top
AC720Man View Drop Down
Orange Level
Orange Level
Avatar

Joined: 10 Oct 2016
Location: Shenandoah, Va
Points: 5132
Post Options Post Options   Thanks (0) Thanks(0)   Quote AC720Man Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar 2018 at 7:30pm
Mmmm, sounds above my knowledge level and my equipment! Thank you so much for posting this thread. I have not had any luck with the search. I must not be doing something correct.
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
Back to Top
AC7060IL View Drop Down
Orange Level
Orange Level
Avatar

Joined: 19 Aug 2012
Location: central IL
Points: 3479
Post Options Post Options   Thanks (0) Thanks(0)   Quote AC7060IL Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2018 at 10:44am
Excellent post. Thank you.
I have a 77' 7040 that is leaking oil at its 540/1000 pto. I've purchased an AGCO seal kit for it. When our weather improves, I'll be tackling it. While I'm in it, is there anything else I should check?

Edited by AC7060IL - 02 Mar 2018 at 10:48am
Back to Top
Orangejbird View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 08 Mar 2016
Location: Dallas, WI
Points: 7
Post Options Post Options   Thanks (0) Thanks(0)   Quote Orangejbird Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2018 at 11:21am
Originally posted by AC7060IL AC7060IL wrote:

Excellent post. Thank you.
I have a 77' 7040 that is leaking oil at its 540/1000 pto. I've purchased an AGCO seal kit for it. When our weather improves, I'll be tackling it. While I'm in it, is there anything else I should check?

Ours is a '76 and we need to do the same. BTT
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2018 at 9:56pm
If it is leaking out of that lower rear shaft area I think the biggest thing to worry about would be getting the correct turning torque on that lower assembly, the seal install is pretty basic.   You certainly don't want it too loose.  One of my sockets fit on the PTO shaft to put a torque wrench on.  I guess you could check the large nut before you took it off and somehow put it on the same amount?  I would probably get an inch pound torque wrench for an accurate measurement.

Possibly there is a shortcut some more knowledgeable people on here know?
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2018 at 9:59pm
Oh and I would use a good quality wire for that pin.  Don't want that coming undone.
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Oct 2019 at 9:19am
Bump
Back to Top
tornado8070 View Drop Down
Orange Level
Orange Level


Joined: 24 Mar 2013
Location: MI
Points: 1341
Post Options Post Options   Thanks (0) Thanks(0)   Quote tornado8070 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2020 at 4:09pm
Going through this process on and 8070. Have .025-.030 play on rear side of clutch between gears. Tighten nut and loose the free play in the drive gear. And ideas/help?
09’ DT205B, 08’ DT220A, 83' 8070 MFWD, 83’ 8070 85’ 8050 MFWD, 83' 8030, 82' 8010, 85’ 6080 MFWD, 84’ 6080, 79' 7020, 85' M3 RWD, 85' 920 diesel,AC C-50 forklift.
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2020 at 6:36pm
Been a while since I had one apart, if I remember the 2 gears (540 & 1000) are splined to the shaft and they butt up against a lip in the center part, then you press the bearing on then a snap ring holds the bearing.  Then on the clutch pack side, clutch pack goes on then the drive gear has 2 tapered bearings in it and the large staked nut holds it on and you tighten that nut down until you get 5-10 in lbs turning torque on that gear.  10 in lbs turning torque is fairly snug so it would be a good idea to have a tool to check it.  If the 2 gears that are splined on are loose, possibly the bearing is not pressed on far enough?  I can post some pages from the FSM later when I get home if needed, they might be more clear than me.
Back to Top
LB0442 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 27 Dec 2014
Location: Boise ID
Points: 767
Post Options Post Options   Thanks (0) Thanks(0)   Quote LB0442 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2020 at 6:49pm
Parts book is showing 2 different bearing numbers for each end of that shaft.  Possibly 1 is slightly thicker allowing it to press on those gears more?  I looked at my pictures and I could see I had 1 set with the staked nut but I don't remember if it looked similar to the other one.  You're right I would sure want those splined gears to be on tight and not have a clearance.
Back to Top
tornado8070 View Drop Down
Orange Level
Orange Level


Joined: 24 Mar 2013
Location: MI
Points: 1341
Post Options Post Options   Thanks (0) Thanks(0)   Quote tornado8070 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2020 at 7:59pm
So the stake nut only tightens that side of the assembly/clutch pack? And the snap ring holds the gears on the opposite end? Tightening the stake nut will not remove play between the 540/1000 drive sprocket....
09’ DT205B, 08’ DT220A, 83' 8070 MFWD, 83’ 8070 85’ 8050 MFWD, 83' 8030, 82' 8010, 85’ 6080 MFWD, 84’ 6080, 79' 7020, 85' M3 RWD, 85' 920 diesel,AC C-50 forklift.
Back to Top
Unit3 View Drop Down
Orange Level
Orange Level
Avatar

Joined: 17 Oct 2009
Location: NC Iowa
Points: 5572
Post Options Post Options   Thanks (0) Thanks(0)   Quote Unit3 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Feb 2020 at 9:22pm
So why was there not a reversing PTO for a small 1000 and a BIG 1000?
2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C
Back to Top
 Post Reply Post Reply Page  12>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.125 seconds.


Help Support the
Unofficial Allis Forum