850c II

[emarr]

Ok, i will try that tomorrow, thank you

 

[emarr]

Hello, any idea were i can buy the pcp for that equipment?

 

[Diesel Dave]

Pump and motor PCP are the same number. Reman part # AT189678
Does Deere not have stock ?

 

[Diesel Dave]

AT189678 Parts For Sale | MachineryTrader.com

AT189678 Parts For Sale | MachineryTrader.com at MachineryTrader.com

www.machinerytrader.com

 

[Diesel Dave]

RFP-AT186588 | RFP-AT189678 | John Deere Hydraulic Pilot Control Valve

RFP-AT186588 OEM pressure control pilot.Dual coil, 4 wireDeere does not sell these new any longer. Deere 750C & 850C (S/N -883331), 700H, 750C-II & 850C-II (S/N 883332-) Click here for reman option!

www.riverfluidpower.com

.
AT186588 was the original PCP part #

 

[emarr]

Well, after finally work with the pcp, now it say tha the trans oil temp hot.

 

[Diesel Dave]

Is the oil actually hot ? or is there temperature switch /wiring issues.
Have you measured the actual transmission oil temperature with a heat gun when the warning is active ?

 

[emarr]

Yes the oil is hot, i have not chek with a heat gun but i know is hot because it melted the hydrologic measure tube on the back of the tank, the one that tell you until were to fill the tank

 

[Diesel Dave]

Have a good look at the transmission oil cooler core for plugging with dirt /debris. I suggest to remove any shrouds, guarding etc. so it can be pressure washed well.
There could also be issues with the oil cooler bypass valve not sending the proper oil flow through the cooler.

 

[emarr]

Ok, i will check tomorrow, were is located?

 

[Diesel Dave]

https://partscatalog.deere.com/jdrc.../pgId/77024970/partnumber/AT186410/callout/37 .
.

 

[emarr]

Hello, is that the valve?

 

[Diesel Dave]

Yes , it’s the transmission oil cooler bypass valve

 

[emarr]

Is there a way to test it, or just replace it? Or any acreen to chek

 

[Diesel Dave]

You could take it apart and check it for debris, stuck spools or broken / collapsed springs.
https://partscatalog.deere.com/jdrc/sidebyside/equipment/67497/referrer/search/pgId/77025012 .
.

 

[emarr]

Hello, i turned the machine on, in parking for about 20 minutes and the hydraulic transmission tank got hot a lot more than the one next to it, that could be the valve right? Or is there any other test that i can do?

 

[Diesel Dave]

If the transmission oil only is getting hot under “no load” I would suspect there is something else going on.
When the park brake is released do the track (s) creep in any direction ?