I just noticed that some outriggers on my Grove RT-60S are not holding well and slowly come down.
Here's what I know:
- They come down maybe 1/4"-1/2" per minute
- There is NO oil coming out of them, no pool of oil under them
My understanding is that the piston seal leaks, which equalizes the pressure between top and bottom oil, at which point it engages the counterbalance valve and as a result the outrigger comes down.
Would anyone comment on my diagnosis.
We can pull and rebuilt hydraulic cylinders in-house if necessary.
Here's what I know:
- They come down maybe 1/4"-1/2" per minute
- There is NO oil coming out of them, no pool of oil under them
My understanding is that the piston seal leaks, which equalizes the pressure between top and bottom oil, at which point it engages the counterbalance valve and as a result the outrigger comes down.
Would anyone comment on my diagnosis.
We can pull and rebuilt hydraulic cylinders in-house if necessary.
Grove RT-60S crane outriggers not holding well
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