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Hydraulic pumps have become an essential part of many different hydraulic systems. Accompany us as we take a closer look at what they are, and how they work.
Depending on the type that you purchase, your hydraulic pump may have more or fewer parts than another type. However, they all have an inlet, an outlet, and a mechanism that circulates the hydraulic fluid.
The purpose of this type of apparatus might seem self-explanatory. However, there’s more to these devices than meets the eye.
Hydraulic pumps do not create pressure by the pumping action itself. When not connected to a functioning system, the pressure at the pump’s outlet reads zero.
Mechanically, the pump performs two functions. Firstly, the mechanism creates a vacuum that draws fluid out of the reservoir. Secondly, it forces the fluid through the outlet into the hydraulic system.
The system pushes against the fluid, which creates the necessary pressure for the machine to function adequately. Interestingly, the pressure created is always precisely enough for the load that the system is carrying.
When you have a problem with your hydraulic pump, it can lead to an entire host of unpleasant consequences. The most apparent and major potential problem with a faulty hydraulic pump is that the system can’t produce pressure if it isn’t working.
Secondly, a problematic device may not build enough pressure to carry the system’s load as it normally would. Other potential problems may include the lack of a vacuum or not forcing fluid out of the system adequately.
In severe cases, the pump may stall entirely, or dry out, and burn out the mechanism as a whole.
It’s unlikely that you’ll have doubts when the time comes to replace your device. When the pump is no longer feeding fluid into the system as it should or can’t carry the system’s load, it’s time for a new one.
Since there are many smaller moving parts on this type of apparatus, you may be able to do repairs or replace certain pieces. However, when the pump is old or the entire system stops working, it’s best to replace it.
When the time comes to replace your hydraulic pump, you need to find the right type for your system. Naturally, the most obvious solution is to buy the type of pump that originally came with your system.
If you have doubts, contact the supplier and determine which kind of hydraulic pump they recommend for your particular machine. Hydraulic pump types include both non-positive displacement and positive displacement pumps.
Most hydraulic equipment uses a positive displacement pump, and it’s the type you’ll find for sale most often. However, non-positive displacement pumps have advantages in some systems. For the best results, contact your vehicle provider to ensure you purchase the correct part.