John Deere 6620 EPC controller

335d

Member
Hi,

I have a JD6620 with fault code 306061.31 transmission speed too low.
I know the issue but don't know how to fix it.
I was calibrating the tractor after fitting a new clutch valve and somehow address 134 has changed to 65535. Should be 040. I can only select the three left most digits on the change to adjust,so I now have 65040. (6 is on the top line, with 5040 on the bottom line)
It looks like it should only have 3 digits, hence only letting me modify 3.
Does anyone know of any way to reset the EPC to default or factory settings, then I can re enter the correct values again?
@Tractortech @NZ Tech
 

Tractortech

Member
Location
Cumbria
Now Then..
I presume you have entered the controllers as a 'Technician'?? And that you are in EPC134??
What caused the value to change in the first place??
 

335d

Member
Hi,
Yes,as far as I am aware I have entered as dealer/service level through the dash.(hold RMS during bulb check) I don't have a performance meter. I honestly don't know how it changed. The display is missing a few lines, so looks like I may have inadvertently done something after exiting the calibration procedure. Its only 2 addresses after the cal I think.
65535 would be a maximum value in computer terms, but I have no idea how it got there.
 

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HSENI names new farm safety champions

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Written by William Kellett from Agriland

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The Health and Safety Executive for Northern Ireland (HSENI) alongside the Farm Safety Partnership (FSP), has named new farm safety champions and commended the outstanding work on farm safety that has been carried out in the farming community in the last 20 years.

Two of these champions are Malcom Downey, retired principal inspector for the Agri/Food team in HSENI and Harry Sinclair, current chair of the Farm Safety Partnership and former president of the Ulster Farmers’ Union (UFU).

Improving farm safety is the key aim of HSENI’s and the FSP’s work and...
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