Brake fluid leak

[boxersoft]

My 7341 has sprung a fluid leak from one of the components above the compressed air tank. I'm assuming it's something to do with the air brake system and that what's leaking is brake fluid, because the pipework connects the air tank to the leaking component. From reading around I'm guessing that the component might be a "fluid reaction vale".

Questions:

- Are there known failures of these components or should I be looking for leaking joints either side?
- Are they generic components that any agri dealer might stock, or Zetor specific?
- Since I don't need air brakes, is there any way I can disable the circuit temporarily so that I can use the tractor without gushing fluid wherever I go?


Any other advice weclome.

 

[biely036341]

I have a 6341, they do not have air brakes. The air operates the 4X4 and the diff lock. It seems to me you might have a leak in the clutch slave cylinder. Had the same problem on mine in the past.
George

 

[forterra9641]

I have a 6341, they do not have air brakes. The air operates the 4X4 and the diff lock. It seems to me you might have a leak in the clutch slave cylinder. Had the same problem on mine in the past.
George

no they dont have air brakes. but the air operates the cylinder wich pushes fluid to the front axle brakes,but i believe that valve is on the other side of the tractor does your tractor have hydraulic trailer brakes? this valve has brake fluid going into it and sits in the area above the air tank. this is valid for European spec trators.

 

[boxersoft]

Thanks both. The tractor doesn't have air brakes but I understand that it provides air braking for a trailer (though I might easily be wrong about that). I thought the leak was coming from some what appears to be some sort of pressure setting component. It's aluminium with an adjusting bolt at the top, sitting between the air tank exit and what looks like a fluid reaction valve or something.

Anyway, it turns out that it wasn't coming from there after all. I couldn't get at the parts because I don't have suitable jacks and stands to get the rear wheel off so I gave in and called out a mechanic. Once he got the wheel off we could see that the leak was actually coming from a hydraulic hose behind that component, having rubbed against the adjusting bold and worn through. Easy enough for him to replace, although it will be a double-run call-out charge because obviously he had to go back to base to get a new hose.

Must get myself a suitable jack and stand...