5310 Brake Valve Leak

CC Farms · Jan 5, 2012

Brake valve housing started leaking (pouring) through hole on side of housing. Hole isn't threaded, so wondering why it started leaking? What prevented the leak before? Was there something inside the valve housing that prevented fluid from leaking through the hole? Most importantly, what's the easiest and cheapest way to plug it, or other solution? Any ideas?

JD5210 · Jan 6, 2012

If you can provide a picture of the hole or point it out in the attached picture that came from the JD parts site. I will look to see if there is anything in the tech. manual.

CC Farms · Jan 6, 2012

Thanks for replying. Here's a picture from the left side as viewed from the tech manual diagram you sent or driver's seat. The hole is near the bottom where I put the screw.

JD5210 · Jan 6, 2012

I looked at my brake valve on my 1999 5210 did not see a hole, but based on your picture I will go take a second look. You may want to look at the URL I found, it appears you are not alone and if you spoke with a dealer why you did not get much help. If your screw stopped the leak, you made the correct fix.

Yesterday's Tractors :: View topic - Plug on Master cylinder

JD5210 · Jan 8, 2012

I looked at the brake valve on my 5210. There is a little hole there, with what looks to be a rubber plug pushed into it.

CC Farms · Jan 8, 2012

Thanks for your help. I put a bolt in the hole with some gasket sealer and it's drying now, hopefully it will hold. Wasn't sure how much pressure there was in the brake valve but if yours has a rubber plug it can't be much. I went to the dealer yesterday and they had no clue and suggested I plug it with something. Great idea!

Thanks again.

bitternut · Jul 26, 2019

Well, this is an old post but yesterday my 2000 5210 came up with the same problem. I had been brushogging some very high and thick grass for a couple hours and decided to take a break. I let the tractor cool off a bit at idle and then dropped the loader and mower to the ground. When I dismounted from the tractor I noticed fresh oil dripping down the side along the brake pedals. This tractor has never dripped a drop of oil in the close to 20 years I have owned it. Anyways long story short story I found this post about the mystery plug. My brake valve has the hole without the mystery plug. Not sure where it went but once I got all the covers out of the way I started the engine and sure enough the re was a steady stream of oil pouring out of the mystery hole.

Could any of you that have experienced this problem shed any light on this problem? Could I just remove the supply line, plug it and drive the tractor without brakes temporarily? On level ground of course.

Here is the picture of the hole that is leaking. The picture is taken from the clutch (left) side of the tractor. The leaking hole is kind of centered between the two horizontal pipers.
T

T2McGinty · Aug 12, 2019

Yeah my 5310 just had this same problem happen. I am in the process of fixing and will report back what I find.

T

Zebrafive · Aug 15, 2019

Watching! I would like to upgrade the 2030 to a 5x10, 5x20 or 5x25 series tractor.

bitternut · Aug 15, 2019

Well, I called my local dealer and the parts guy could not find anything that showed the part or a number that would solve my problem. He suggested that I bring the valve in since the part I needed was not shown or even mentioned in the parts book. I took the valve off and brought it to the dealer so that he could see exactly what I needed. He still could find nothing that showed the leaking hole or the plug that obviously was missing from my valve. He suggested that I go show it to the service guy which I did. The service guy said that he vaguely remembed a service bulletin on that plug so he did a search on the computer and sure enough he found a service bulletin with John Deere's fix. DRUM ROLL PLEASE!!!!!

The fix is to drill the hole out to 21/64 and tap it with a 1/8 - 27 pipe tap. That is exactly what I did and now I have no leak.