Home › Forum › Ask A Member › Adding fluid and bleeding trim pump › Re: Adding fluid and bleeding trim pump
Any single acting hydraulic system extend the ram, then fill. Otherwise when the cylinder retracts with a single acting system it has no place to store fluid once the cylinder has compressed. With a double acting cylinder as one side is compressed, the other side of the ram fills. This system is totally different. It just swaps fluid from one side to the other not changing the reservior level, but the single acting system pumps fluid in & the weight of the motor pushes the fluid out of the cylinder so no pump is required to lower the motor, just a spool valve opens by electrical coil. Also give it a chance for all air bubbles to return to reservior. I am not familure with your cylinder port but I bet it’s on the top so it will evacuate the bubbles easier. Not sure but should leak fluid with the pump motor removed? It may dump fluid into the electric motor, depends where the shaft seal is placed. Seen that before! Good luck