3-Point Hitch Iseki TS2810F/ Bolens G294 Hydraulic reservoir issue

Isekirunner · Dec 29, 2013

Well I decided to finally tear into the tractor. The issue I'm having is the hydraulic fluid has been low after every time I use the tractor. The problem is there are no leaks visible on the outside. Little while ago I had fluid foaming out of the shifter boot, so I figured the hydraulic fluid was leaking into the rear end. By the way nothing was wrong until I was running a 3pt backhoe on it for a year, they are too hard on the tractor for sure. Well I took the reservoir off and there is a pan underneath the tank. Now the new problem is that there is no visible hole or crack anywhere with minimal surface rust. in order for hydraulic to get into the rear end it has to leak through the pan. I see no other way that it can get into the gear oil. Has anyone else had an issue like this or know something I'm missing? Thanks in advance

Isekirunner · Dec 30, 2013

Well I took the reservoir off today, cleaned all sealing surfaces and put it back together. Filled the reservoir up, started the tractor and watched the fluid level while I ran the fel up and down. Everything looked good so I screwed the reservoir cap back on and ran the tph up and down a few times and decided to check the level again just to make sure. Well I got the cap almost off and fluid started spewing out of the reservoir. Does anyone know why my reservoir is building pressure? Could the relief valve after the tph speed control valve be malfunctioning?

johneic · Dec 31, 2013

Was it still "foamy" spewing out of the reservoir?

Isekirunner · Dec 31, 2013

There was definitely little bubbles in the fluid. Probably 50/50 bubbles- fluid. I started a new thread in hydraulics. I tried moving this one but couldn't figure out how.

fxrs55 · Dec 31, 2013

I had a similar problem with my G154. The hydraulic fluid would bubble out of the
filler plug and then on to the ground. I realized that the oil foamed more
as it got colder outside. I finally figured out that the oil seals in the hydraulic
pump were old and hard and would suck in air as it got cold outside.
I rebuilt the pump and all is well now. I just used the tractor for
a couple hours today and it is still working good. It is cold here
in NJ and everything was working great. You more than likely
have a small hole or worn seal on the suction side of your pump.
check this link and start at post #170

johneic · Jan 1, 2014

Thats what I was thinking fxrs, Iseki I am not familiar with your tractor, it sounds like you can see inside your reservoir while your tractor is running? can you see the hole/tube where the tph returns fluid to the reservoir? can you see where the bypass tube returns fluid to the reservoir?

Isekirunner · Jan 1, 2014

fxrs55 said:
I had a similar problem with my G154. The hydraulic fluid would bubble out of the
filler plug and then on to the ground. I realized that the oil foamed more
as it got colder outside. I finally figured out that the oil seals in the hydraulic
pump were old and hard and would suck in air as it got cold outside.
I rebuilt the pump and all is well now. I just used the tractor for
a couple hours today and it is still working good. It is cold here
in NJ and everything was working great. You more than likely
have a small hole or worn seal on the suction side of your pump.
check this link and start at post #170

There is no link to click. I would like to check it out.