Hydraulic pumps are a core component of any hydraulic system, because they are responsible for keeping the hydraulic fluid running on its hydraulic circuit through the motor. When the pump fails, your machine is dead in the water. Here are a few things that must be done correctly when repairing Parker hydraulic pumps.
If you have a problem with your Parker hydraulic pumps, this is an excellent opportunity to make sure your fluid is clean and your filter is working properly. After all, repairing the pumps and then continuing to run dirty fluid through them will only lead to another failure. When fluid becomes contaminated with small particles of dirt or any other foreign substance, these particles can cause excessive wear and tear on internal pump components. While large particles will not be able to pass through the equipment’s internal clearances, and tiny particles will not cause too much friction, those particles perfectly sized to just barely squeeze through the internal clearances will wreak havoc. If you have a large fluid reservoir, you will be slightly more protected from contaminated fluid, because the particles will tend to settle to the bottom of the reservoir. However, no matter what kind of Parker hydraulic pumps you have and how big or small your reservoir is, you must get your fluids analyzed and replaced regularly.
Over-pressurizing your hydraulic system can have serious consequences. Even one major spike in pressure can destroy a pump by blowing seals. High pressure can also result in cylinder barrels separating from valve plates. When replacing a hydraulic pump, you must take care to ensure that over-pressurization will not occur. This entails checking the load sensing, pressure limiting, and power limiting controls on the hydraulic pump power unit.
Because hoses are made of rubber and steel wire, they are one of the first things to wear out in a hydraulic system. Though they are designed for durability and feature exterior coatings to resist abrasion, they still have a limited lifespan of about 5 to 7 years. When replacing a hydraulic pump, hose fittings must be carefully checked, as the fittings are actually the most common source of hose failure.
Going to an authorized Parker Repair Center will help you ensure that the technician doing your repair follows best practices for the repair and also checks for additional problems like dirty fluid to ensure that your machinery performs well after the repair. Some companies even provide on-site pump repair services, which would be the most convenient way to get your equipment and your project up and running again.