HiRanger 5TC-55 upper control question

[ekylypse]

I am having issues with the seal on the upper controls which causes the controls to stop working from time to time. After talking to someone I've been sent the brass part with copper hose outlet. What I need is the rubber gasket that activates the upper controls when the handle is pressed. Can anyone point me in the right direction as to part number? I've come up empty and I hate having my guy hold the lower control button or taping it while he runs the chipper.

Thanks in advance,
Anthony

 

[ekylypse]

I suppose what I'm actually looking for is the diaphragm.