Kubota Relief valve shim?

LD1 · Sep 23, 2013

Wether you will notice a difference or not depends on what you do.

IF you are just moving loose material and dirt, and have no issues with a full bucket, then you wont notice. But if you are having issues, or lifting heavy things with a boom pole or pallet forks, then you will notice.

Why not call your dealer before you do anything. 1. You dont want to void your warranty. And 2. If the pressure is below spec, they should make it @ spec for you at no charge if you are having issues.

bandaidmd · Sep 23, 2013

How much fluid should i prepare to catch when i pull off the spring cap and is the cap going to have spring tension pushing against it?

Thanks LD1 I may give them a call but I already modified the hydro system with a diverter and rear remotes so they might already want to look down there nose at me.lol

bandaidmd · Mar 16, 2016

nothing like being a procrastinator.lol
Finally shimmed my relief valve, had 1.7 mm of shims and i swapped arround some washers and ended up with a stack of 2.3 mm and gained 250 lb so the 40 lb per mm is a pretty close estimate.

PhysAssist · Mar 16, 2016

bandaidmd said:
nothing like being a procrastinator.lol
Finally shimmed my relief valve, had 1.7 mm of shims and i swapped arround some washers and ended up with a stack of 2.3 mm and gained 250 lb so the 40 lb per mm is a pretty close estimate.

Wow, I'v thought I was bad at putting stuff off...

Oh wait, I still haven't done mine, so I guess, I'm worse than you.

Congrats,
Thomas

bandaidmd · Mar 17, 2016

Thomas,

It was super simple , I did remove the tire for easier access and had to tweak the one hard line just a bit to get the socket on the relief valve nut.
Lost maybe a couple ounces of fluid and was able to find a couple washers in my cabinet that were the right dia (#10 stainless). factory had three shims of different thickness's ,used metric measurements on my dial caliper because I read somewhere that 1mm = 40 psi.