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ACinSC 
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Location: South Carolina
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 Topic: D 15 lift latches
Posted: 25 Oct 2019 at 5:55am |
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On top of my engine issues I also can't get the lift to raise my disc harrow quite high enough . Maybe I'm crazy but can't the lift latches be adjusted ? Tractor is not here now or I'd check . Thanks
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Jim.ME
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Location: Maine
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Posted: 25 Oct 2019 at 6:23am |
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I don't see that the latches could be adjusted enough to gain much lift.
If the photo posted a few days ago is of your tractor, I would say the geometry for the 3 point is off. The adjustable lift links need to be shorter, and/or the lift arms need more upper travel. Look over how low the 3 point arms will go vs how high, they may go way lower than needed. Right or wrong, I took the lift arms off the rockshafts on my D14s and moved them up a couple splines to get more lift for the 3 point draft arms. That gave room for more useable lift link adjustment range. Just my thoughts.
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DrAllis
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Posted: 25 Oct 2019 at 6:38am |
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Looks to me like the lifting pins on that TALL disc need to be closer to the ground so the small/low tractor can lift it higher.
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TimNearFortWorth
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Posted: 25 Oct 2019 at 7:29am |
Top Links at most any supply store should get you where you need to be but you may have to loosen the top link after setting those discs down to get full travel/float. Then wind it back up to shorten for travel but be careful of running a short top link adjusted near the end on threads and lifting the discs for turns as you will damage the top link threads if not enough engagement. I have a couple different sizes that are both OEM, one heavier with course threads from a 185 and one OEM with the fine threads where I use pins/bushings on both to save both the implement and tractor top link bracket holes from excessive wear. If you have the OEM top link bracket that mounts under the seat frame, keep an eye on the two front bolts as they can loosen with continuous use like a disc.
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ACinSC
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Posted: 25 Oct 2019 at 9:49am |
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Yeah Jim , I thought about trying to remove the lift arms . Looks like way too much trouble on my rusty tractor . You're also right Dr Allis . I'll figure something out .Thanks
Edited by ACinSC - 25 Oct 2019 at 9:51am
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ACinSC
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Posted: 25 Oct 2019 at 9:54am |
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Thanks Tim , but the top link is ok . It's the front disc gang that won't lift quite high enough . Thanks
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TimNearFortWorth
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Posted: 25 Oct 2019 at 10:49am |
Looks like the only thing left is to move top link bracket up, to gain some more height. Then a longer top link can be adjusted for what you want. Have seen some home made that allowed top link use above the OEM 3-hole or single hole brackets but if only the disc is the concern for transport, you may have to live with it or go with taller tires/rims. I run taller tires on 2-position rims for the 15's worked the most, with the OEM SC adaptor with single hole top link bracket. PM me your e-mail and I can send some pics if your interested.
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Jim.ME
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Posted: 25 Oct 2019 at 11:01am |
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If the harrow is the only impliment you are having trouble with do as DrAllis suggested and lower the lift pins on the harrow a few inches. That is quicker and easier than what I did. I had issues with several pieces used on multiple tractors so decided to adjust the tractor arms.
How close to the ground will the lift arms go when free of an impliment, with the lift links adjusted as they are?
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john(MI)
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Posted: 25 Oct 2019 at 1:59pm |
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Maybe the front of the tractor is lifting when the disk does. That looks like a lot of weight on the rear.
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D14, D17, 5020, 612H, CASE 446
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ACinSC
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Posted: 25 Oct 2019 at 6:11pm |
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Thanks for all the input fellas . Tractor is about 40 miles away now . I'm see what I can figure out and post the fix . If I can find one .
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ACinSC
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Posted: 26 Oct 2019 at 5:45pm |
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I was down at the "farm" today and tooled around enough to see that my lift is slowly leaking down . Even with the lift/lower lever in the raise position like Dr Allis said not to do . Guess my pump is worn out ? Wonder if it would do any good to drain the hydraulic fluid and put in new fluid ? Thanks
Edited by ACinSC - 27 Oct 2019 at 5:53am
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ACinSC
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Posted: 02 Nov 2019 at 1:44pm |
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My fav son had a D 15 hydraulic pump off a parts tractor . I've sent it off for a rebuild . Should add that all my fluid levels are the same . Anyone have any experience changing out this pump ? I also have a new coil on the way for my engine issues . Thanks
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jaybmiller
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Posted: 02 Nov 2019 at 1:58pm |
here's 3 things I know that will cause arms to fall down... 1) seals in ram are shot 2) hyd hose to ram is shot 3) check ball in pump is not seating 100% 1 and/or 2 will allow the hyd oil to fill up the diffcase(rear end),so if the dipstick says waaay over full, 1 or 2 needs attention 3 is a pain to fix, as you need to drain oil, remove pump, clean/replace check ball If you need to do 1 or 2, do BOTH, as you have to remove 'rockshaft' for either. If you repalce hose, get one custom made with 1 end a 'swivel' connector.That make install a lot easier( also ,for me, custom was 1/2 price of AGCO part....)
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3 D-14s,A-C forklift, B-112
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ACinSC
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Posted: 02 Nov 2019 at 2:43pm |
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Yeah Jay , none of my reservoirs are overfull and I see someone has been in the rockshaft . So I'm thinking it has to be the pump . I'm often wrong though
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jaybmiller
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Posted: 02 Nov 2019 at 2:48pm |
It's probably the check ball between 'pump' and where the hose connects. "Troy, my D-14 #1" leaks down. Sounds like your's is like mine... I replcaed ram seals and hose, got it 99% proper, then discovered the check ball not seating 100%. I have a GREAT pump on 'Paris, D-14 #2) but ,yeesh, tear 2 pumps off, make a mess, yuck..... maybe later..... that was 4-5 years ago. BUT, if you want some 'practice'.......... lol.
Jay
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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ACinSC
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Posted: 02 Nov 2019 at 4:29pm |
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Practice ?!! I dunno . Sent my pump to the good folks at Sandy Lake . I'm hoping it's not too hard to swap out . Thanks
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ACinSC
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Posted: 05 Apr 2020 at 12:08pm |
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Old post of mine . I finally got a couple holes drilled higher on my lift tugs . Should raise the front discs enough to keep them from kissing the ground with the harrow up . Hope my fav son will post pics soon . Thanks
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WeisAC2
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Posted: 05 Apr 2020 at 1:34pm |
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WeisAC2
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Posted: 05 Apr 2020 at 1:35pm |
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WeisAC2
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Posted: 05 Apr 2020 at 1:41pm |
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DiyDave
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Posted: 05 Apr 2020 at 5:45pm |
Raise the front up, then adjust toplink, so the back don't drag, when you're on a road, or area you don't want to damage...
Oh, and Hyd level is crucial. If you are down on the dipstick, pump will run out of fluid, if that happens, you can damage the pump!
As far as changing the pump, its easy, just drop the pan, and unbolt the pump, and disconnect linkages. While you have it out, check the cam it rides on, make sure there's no wiped out lobes!  |
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ACinSC
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Posted: 06 Apr 2020 at 6:39am |
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Sorry for the confusion Dave . This is a post I started last year . Just wanted to show that I'd finally raised the lift arms like Jim suggested . I've also had the pump rebuilt . Thanks
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