ballen
Diamond
- Joined
- Sep 25, 2011
- Location
- Garbsen, Germany
I've noticed a strong "hum" or vibration in the hydraulic system of my 1986 Jones and Shipman surface grinder. When the system is not under a lot of load (traversing slowly) this is almost imperceptible. But when it is fully loaded -- running the table back and forth at full travel and max speed -- I can hear it and even feel it on the table. It's very strong in the hose coming from the pump.
Can anyone tell me what's responsible and how to fix it? I'd guess that the vibration is at 300 or 400 Hz.
(As anyone who has followed an earlier thread of mine already has seen, I don't know anything about hydraulics. So what's wrong may be basic/obvious.)
Can anyone tell me what's responsible and how to fix it? I'd guess that the vibration is at 300 or 400 Hz.
(As anyone who has followed an earlier thread of mine already has seen, I don't know anything about hydraulics. So what's wrong may be basic/obvious.)