1987 L3750 wet brake issue

[garycz]

hi
I changed to hydro oil in my 3750 and immediately had a wet brake issue. They will work if you really step on them, but it is not the way it used to be prior to fluid and filter change. Used tractor supply "Renew" product. Tractor is gear drive,4x4,bucket loader 1800 hours. I change fluids and filters routinely, but this time I went cheap wit TSC oil (said it was comparable with Kubota fluid). TSC brand is $50 per 5 g, Kubota is $100 per 5 g. All other function seem to work except brakes, and as I said it was immediate problem. I am about ready to dump fluids and put Kubota UTD in to see if problem goes away. I have a B7800, RTV and a M5660 and use the UTD in them without any issues. Any suggestions would be a great help.

 

[North Idaho Wolfman]

hi
I changed to hydro oil in my 3750 and immediately had a wet brake issue. They will work if you really step on them, but it is not the way it used to be prior to fluid and filter change. Used tractor supply "Renew" product. Tractor is gear drive,4x4,bucket loader 1800 hours. I change fluids and filters routinely, but this time I went cheap wit TSC oil (said it was comparable with Kubota fluid). TSC brand is $50 per 5 g, Kubota is $100 per 5 g. All other function seem to work except brakes, and as I said it was immediate problem. I am about ready to dump fluids and put Kubota UTD in to see if problem goes away. I have a B7800, RTV and a M5660 and use the UTD in them without any issues. Any suggestions would be a great help.

I think you have just discovered the hard way what cheap fluid bad fluid can do, I'm hoping you didn't trash the brake disks with that stuff.

Drain it out of every drain, there is probably 4 or 5 on that tractor, and look for chucks, if you find any even very small pieces, your going to need to do a break job.
New Kubota UDT and filters!

That fluid is known to trash all sorts of seals and such in a modern hydraulic system, so you might be looking at other issues too now or down the line.

 

[SidecarFlip]

As as I'm concerned, the only thing TSC generic fluid is good for is an accelerant for starting fires in brush.