Learn how to properly draw the different types of symbols for hydraulic pressure valves such as relief valve, unloading valve, pressure reducing valve, counter balance valve, and sequence valve.
This is the best way to learn how you can interchange any hydraulic pump you have for a better alternative.
Often people need to interchange their hydraulic pumps from existing system to a different pump that can offer better delivery time, pricing, or simply because their old pump hard to find or obsolete.
It seems to be a common problem that the hydraulic pump isn’t “lifting pressure”. Well, assuming you have your relief valve all the way closed, you might need to check the pressure setting on your pressure compensated pump.
Video below is a quick reference on how to set a pressure compensated control for a variable displacement pump.