All About Hydraulic Pump Repair
An hydraulic pump in the hydraulic system is indispensable. when there is high-pressure fluid flow, the hydraulic system must have a pump. whatever the size of hydraulic systems it will pressurize the fluid stored in the reservoir with a hydraulic pump and pass it towards other hydraulic system components. It is about converting mechanical energy to hydraulic energy. Damages to these hydraulic pumps will surely affect the performance and efficiency of the hydraulic system. Durable maintenance is required for a hydraulic pump. because if it will not it will cause costly and unrepeatable damages to your hydraulic system.
If your hydraulic pump fails to provide the performance that you require and with your hydraulic industry experience you recognized it as minute damage, Then, you can repair it by yourself without depending on a technician (experience and knowledge in hydraulic pumps are obligatory ).
Before directly dismantling or repairing your pump, it is necessary to inspect the type the system and to understand what causes that failure. You need to check Pump type and specifications . Also , you need to review the symptoms the pump indicates before failure. When the oil was refilled for the last time? The type of oil refilled and whether it is compatible or not . you must check also the maintenance history, etc…
The habitual signs of hydraulic pump failure are loud noises, high oil temperature, and slow or inefficient pump.
Hydraulic Pump Noise
One of the major benefits of the hydraulic system is a quieter operation. The causes for the noisy hydraulic pump are :
Cavitation (the formation of gas bubbles ) this issue can be eliminated by cleaning/replacing the filtration components, or by replacing the hydraulic fluid.
Aeration, (air entrapped in the hydraulic fluid ) this issue can be eliminated by bleeding air from the system, tightening leaky connections, replacing seals, filling fluid to the required level, etc..
Coupling misalignment : this issue can be eliminated by properly aligning the seals, couplings and bearings.
Worn/damaged pump : The only solution is replacement.
cavitation, aeration, excessive load, worn/damaged pump, are the causes of excessive heat in the pump which will affect the fluid viscosity and causes wear to system components. we discuss the solution for cavitation, aeration and worn/damaged pump below
include To those issues we will talk about the excessive load you need to understand the working load capacity of your pump. after that this issue can be controlled by adjusting the pressure settings or installing a pressure gauge
The efficiency of hydraulic system is important for every plant. Some important reasons other than what we mentioned above include low oil level, low oil viscosity, stuck inner components. The solutions to solve hydraulic fluid related issues are replacing hydraulic oil or filling it to the required level.
Stuck internal components(pistons/valves can be a result of corrosion, highly viscous fluids, contaminants, etc.. ) it causes difficulty to move.
Adding new components or reassembling existing components are applicable only after deconstructing the hydraulic pump. If there is a fault in this hydraulic pump rebuild it can make the system permanently inactive.