Boom dropping

[Deco]

Hi all .have a kubota kx91 digger boom ram dropping. when warm it is completely useless no power won't even lift machine off the ground.Changed seals and no good can anyone help with this problem

 

[jd6820]

Hi all .have a kubota kx91 digger boom ram dropping. when warm it is completely useless no power won't even lift machine off the ground.Changed seals and no good can anyone help with this problem

Time to put some taps in the ram supply lines and lift boom then lock them off. Boom still drops it’s ram seals. If it doesn’t move, look at the valve chest.