856 TA Dump Light

[CP1]

Have an 856 that had a new TA put in and after a while using it the dump valve light started flickering, then now it stays on. Except when you pull the TA lever back half way it goes out ad and comes on again as it’s all the way back. Also the light goes out if you step on the brake. Put in a new switch, still the same thing. Haven’t checked pressure yet at the switch as the tractor is 30 miles away on the baler. TA seems to work fine. Any ideas?

 

[used red MN]

Have an 856 that had a new TA put in and after a while using it the dump valve light started flickering, then now it stays on. Except when you pull the TA lever back half way it goes out ad and comes on again as it’s all the way back. Also the light goes out if you step on the brake. Put in a new switch, still the same thing. Haven’t checked pressure yet at the switch as the tractor is 30 miles away on the baler. TA seems to work fine. Any ideas?

Don’t use it in Direct TA until you have the problem figured out. When that light flickers and the pressure is actually low the clutch pack is very prone to slipping.

 

[BarnyardEngineering]

Call the one that put in the TA and tell them to come and fix their screw-up.

 

[CP1]

Hey that’s me that that put in the TA
No offense!
I’ve put in lots of torque’s in 50 plus years, but first time I’ve had such an IH do something like this?
Pressures were good after install, everything right for maybe three months, Just want an answer to share with others if someone has run into this before

 

[Powered By IH]

Have an 856 that had a new TA put in and after a while using it the dump valve light started flickering, then now it stays on. Except when you pull the TA lever back half way it goes out ad and comes on again as it’s all the way back. Also the light goes out if you step on the brake. Put in a new switch, still the same thing. Haven’t checked pressure yet at the switch as the tractor is 30 miles away on the baler. TA seems to work fine. Any ideas?

Have you tried adjusting all the linkage to get them back in place? Just a Few Acres Farm has a good video on that.

 

[the tractior vet]

Have an 856 that had a new TA put in and after a while using it the dump valve light started flickering, then now it stays on. Except when you pull the TA lever back half way it goes out ad and comes on again as it’s all the way back. Also the light goes out if you step on the brake. Put in a new switch, still the same thing. Haven’t checked pressure yet at the switch as the tractor is 30 miles away on the baler. TA seems to work fine. Any ideas?

Well more then likely the issue is in the MCV . I would say as i have been out twice to FIX the local I H dealers screw up and both time there HEAD wrench twister forgot the O/Ring between the M C V body and the speed trans frame . The one tractor i went to FIX was because there two wheel drive pick up could NOT get back to the tractor and it would not MOVE . not even in the low side with one of them NEW T/A's the dealer was pushing . why do some people have such issues doing T.A's . I would buy every I H at every sale i went to and every auctioneer across IN. and Ill. knew if i was there they had a sucker who would buy that rag. . That Chassis O/ring is the first place i would look

 

[the tractior vet]

Have you tried adjusting all the linkage to get them back in place? Just a Few Acres Farm has a good video on that.

Well if your relayen on a want to be know it all as i watched his vid and let me put it this way lets see how long that T/A job will last as he DID NOT clearance it correctly . He did NOT go thru the M CV . He did not set pressure . Where as i made my living working on them and also i have all the I H service tools same as a dealer has as i have bought out the service dept of one closing I H dealer and odds and end fro two others covering up to late model 86 Series . And what i don't have to work on the new stuff i do not work on . How many have a I H flow Rater ?? ya can't do proper work on Hyd. with out one , ya can only guess and throw money at the issue . Ya want one like what i have ya best dig deep in the piggy bank .

 

[the tractior vet]

Hey that’s me that that put in the TA
No offense!
I’ve put in lots of torque’s in 50 plus years, but first time I’ve had such an IH do something like this?
Pressures were good after install, everything right for maybe three months, Just want an answer to share with others if someone has run into this before

Also who's T/A unit did ya use , if it is not in the M C V then it it is in the direct drive system , this is a pain to test for as then ya need to do some port blocking You say when you step on the brakes it backs up pressure HUMM yep a new one so again this comes back to M C V issue

 

[BarnyardEngineering]

Well if your relayen on a want to be know it all as i watched his vid and let me put it this way lets see how long that T/A job will last as he DID NOT clearance it correctly . He did NOT go thru the M CV . He did not set pressure . Where as i made my living working on them and also i have all the I H service tools same as a dealer has as i have bought out the service dept of one closing I H dealer and odds and end fro two others covering up to late model 86 Series . And what i don't have to work on the new stuff i do not work on . How many have a I H flow Rater ?? ya can't do proper work on Hyd. with out one , ya can only guess and throw money at the issue . Ya want one like what i have ya best dig deep in the piggy bank .

So you drew that conclusion by watching ONE video. That was only the first in a series of videos on the 756, including a two-part video where he went through the MCV. The final determination is that the TA needs to be replaced on the 756, and to my knowledge he has NOT done a TA job on the 756 yet.

Also, just because things don't happen on screen, does not mean they don't happen.

 

[Mrfred54]

Steering has priority so guessing you have a leak in the regulated circuit. Pressure checked in DD and TA?? I like to get the pressure close to 300 psi. Lube pressure 25 psi should be sufficient. If lube pressure rises significantly when selector spool is in the mid position you got a MCV internal leak.

 

[the tractior vet]

Have an 856 that had a new TA put in and after a while using it the dump valve light started flickering, then now it stays on. Except when you pull the TA lever back half way it goes out ad and comes on again as it’s all the way back. Also the light goes out if you step on the brake. Put in a new switch, still the same thing. Haven’t checked pressure yet at the switch as the tractor is 30 miles away on the baler. TA seems to work fine. Any ideas?

So you drew that conclusion by watching ONE video. That was only the first in a series of videos on the 756, including a two-part video where he went through the MCV. The final determination is that the TA needs to be replaced on the 756, and to my knowledge he has NOT done a TA job on the 756 yet.

Also, just because things don't happen on screen, does not mean they don't happen.

LOOK I SAW what he was doing , and for darn near thirty years we did two to three T/A's a week . I bought on Avg of two to four tractors a week out of sales that were called for bad T/A's i was a Hy cap dealer and i installed them and when that tractor went to Auction it went with a new T/A with warranty plus the locals that brought there tractors to me for the job as i was a BUNCH cheaper then the local dealer on the job plus i gave a better warranty with the std T/A went a two year warranty parts and labor that i never had to do a warranty job or come back . Some of the LOCAL people who came to me went from customers to good friends and when they needed something they came to me to FIND what they wanted . I burnt the mid night oil doing what i did and did it right . many days started by 8:30 and ended after 11 PM , rush home get a shower wolf down some thing to eat get to bed at mid night and be out of bed by 3 and on the road by 3:30 and drive five to 7 hours to the next sale , walk a sale lot larger then most farms then load what i bought and beat feet back to the house getting home around 2 to 4 in the morning get maybe four hours sleep run out to the shop unload and get back to repairing so i had something to sell at the next auction or working on a local tractor . I know every inch of the I H brand on the larger tractors as the utility's were NOT my thing as they did not sell well around here . and back then we did not have you tube and even if we did i did not have the time to play games and try to impress people with what i did . I had more then enough work coming in . my work impressed the ones i worked for doing great work at a price that did not make you go broke . I did good enough work that even one dealer would call when they got swamped with work one auction house that i would go down and handle any issues before the sales from minor to major and have what ever ready for sale day sometimes finishen up two hours before the sale started yea that meant working on thru the night to get a tractor up and running . even the local I H dealer called me to go solve and issue on a tractor they screwed up . The oliver dealer north of me would call me when they got a off color tractor in and i also did buying at the far away auctions for them when there was a decent Oliver that paid me 5 % buyer fee of the buy price and when the tractor or equipment sold i got another 10% . And he was impressed with my buying skills . At times i would buy him several semi loads of what he was looking for .

 

[the tractior vet]

Steering has priority so guessing you have a leak in the regulated circuit. Pressure checked in DD and TA?? I like to get the pressure close to 300 psi. Lube pressure 25 psi should be sufficient. If lube pressure rises significantly when selector spool is in the mid position you got a MCV internal leak.

I usually shoot for on the 100 Hp tractors around 250-60 range on lock up . 1066's tweaked 275 -80 . that is just me thought .

 

[BarnyardEngineering]

LOOK I SAW what he was doing , and for darn near thirty years we did two to three T/A's a week . I bought on Avg of two to four tractors a week out of sales that were called for bad T/A's i was a Hy cap dealer and i installed them and when that tractor went to Auction it went with a new T/A with warranty plus the locals that brought there tractors to me for the job as i was a BUNCH cheaper then the local dealer on the job plus i gave a better warranty with the std T/A went a two year warranty parts and labor that i never had to do a warranty job or come back . Some of the LOCAL people who came to me went from customers to good friends and when they needed something they came to me to FIND what they wanted . I burnt the mid night oil doing what i did and did it right . many days started by 8:30 and ended after 11 PM , rush home get a shower wolf down some thing to eat get to bed at mid night and be out of bed by 3 and on the road by 3:30 and drive five to 7 hours to the next sale , walk a sale lot larger then most farms then load what i bought and beat feet back to the house getting home around 2 to 4 in the morning get maybe four hours sleep run out to the shop unload and get back to repairing so i had something to sell at the next auction or working on a local tractor . I know every inch of the I H brand on the larger tractors as the utility's were NOT my thing as they did not sell well around here . and back then we did not have you tube and even if we did i did not have the time to play games and try to impress people with what i did . I had more then enough work coming in . my work impressed the ones i worked for doing great work at a price that did not make you go broke . I did good enough work that even one dealer would call when they got swamped with work one auction house that i would go down and handle any issues before the sales from minor to major and have what ever ready for sale day sometimes finishen up two hours before the sale started yea that meant working on thru the night to get a tractor up and running . even the local I H dealer called me to go solve and issue on a tractor they screwed up . The oliver dealer north of me would call me when they got a off color tractor in and i also did buying at the far away auctions for them when there was a decent Oliver that paid me 5 % buyer fee of the buy price and when the tractor or equipment sold i got another 10% . And he was impressed with my buying skills . At times i would buy him several semi loads of what he was looking for .

Yeah, you saw him adjust the external linkages, BY THE BOOK, which is what you have said to do hundreds of times on this forum over the years.

He did not touch the MCV internals, that came later. He did not install a TA on that tractor, though he did a TA on his 856 about three years later (mostly offscreen).

We know you're God's gift to these old tractors, but you ain't going to live forever and I highly doubt you're teaching anyone how to carry on your legacy. Probably figure everyone's born with the knowledge, just like you were, right?

 

[Mrfred54]

Reading your post ,tractor vet. I can relate to doing all those TA’s. I’m doing a 966 at the moment right now. Don’t do as many as I used to, only bout 6-8 a year. I would probably do more transmission and differential work if I could keep a young guy around to help and teach him about these ole tractors but after a couple jobs they have had enough.