Hi all I have a Maxilift 800kg crane fitted to mu LDV tipper truck. The problem I have is that the 12 volt Hydraulic power pack I drawing in air, in self not a big issue however when the crane is lowered (solenoid drain to tank) oil and air escape from the vent.
The Ideal solution is a new powepack, I have tried 2 ex tipper ones but they pump to many LTRs per minute.
All the units I can find are replacements for tippers and are 2 galls per minute, obviously this is where the market is and my requirement is a bit special..
I have guessed the volume of the ram and timed the travel, it would appear I need in the region of 1.5 to 2 LTRs per min.
So the question is, is it feasible to throttle the flow rate of one of the bigger pumps? Is there an expert in these setups out there that could give me some ideas?
I appreciate Throttleing is not ideal, could damage the relief valve seat, wasteful of energy, etc etc.
thanks in advance Phil