Why Doesn't the Hydraulic System Work?
Why Doesn't the Hydraulic System Work?
Why Doesn't the Hydraulic System Work?
Hydraulic systems work as a result of synchronized operation of many hydraulic equipment. As a result of a problem that may occur in any of the hydraulic equipment, the hydraulic system may become completely inoperable. It compiles the most common hydraulic system problems and solutions for you.
Hydraulic Pump not being driven
The coupling group in the connection of the hydraulic pump and the electric motor or diesel engine may be damaged.
The electric motor or diesel engine in the hydraulic pump drive may be faulty.
The coupling connection is not suitable.
Failure of the hydraulic pump driver or the reverse direction of rotation
Hydraulic pumps, by their nature, produce flow in only one direction of rotation.
Lack of hydraulic oil in the hydraulic system or low oil level in the hydraulic Tank
If there is no hydraulic oil at the level that the hydraulic pump can absorb, the hydraulic system will not work.
Too low oil viscosity
In order for the hydraulic system to work properly, hydraulic equipment manufacturers report the required viscosity value, if this value is lower than the value specified by the manufacturer, the hydraulic equipment will not work or operate with low performance.
Dirty hydraulic filter
80% of hydraulic system failures are caused by dirty hydraulic system. For this reason, a successful pollution management in the hydraulic system is required. Please contact us for support on this matter. [email protected]
Air inlet from the suction line
The phenomenon of air entering from the suction line in the hydraulic system is called cavitation in the hydraulic system. As a result of cavitation, air entering the hydraulic system and air bubbles adhere to hydraulic equipment such as hydraulic pumps, hydraulic valves, hydromotors, explode as a result of high oil pressure compression and cause deformation in hydraulic equipment. As a result of this deformation, solid parts emerge and these particles also damage other hydraulic equipment. As a result of this process, hydraulic failures occur.
Worn out pump
Abrasion and heating may occur in the hydraulic pump due to the above reasons. In this case, the hydraulic system performance will decrease and the hydraulic system will not reach the desired pressure. Please contact us for support on this matter. [email protected]
Oil leak in pressure line
Hydraulic systems operate at high pressures. Oil leaks occur in hydraulic connections as a result of abrasions and vibrations in the hydraulic system. Please contact us for support on this matter. [email protected]
Setting the safety valve to a low value
In hydraulic systems, there are many valve groups that work synchronously. Some of the hydraulic valves need to be adjusted to meet the required operating conditions. These settings are made during the initial commissioning of the hydraulic system. However, these settings may change over time due to many factors. Please contact us for support on this issue. [email protected]
Excessive load on the system
Hydraulic systems are designed to operate at loads determined by the manufacturer according to operating conditions. When a load greater than the specified load is encountered, the safety valves in the hydraulic system evacuate the system so that it does not rise to pressures that would endanger the system.
Improper hydraulic connection
There are many connection points in the hydraulic system. If these connections are changed for any reason, the hydraulic system will not work. In order to correct this situation, necessary controls must be made from the hydraulic system project.
What Causes Low Pressure in the Hydraulic System?
Worn or damaged pump
The viscosity of the oil is too low
Incorrect chiller setting or insufficient chiller capacity
Defective electric motor or coupling
Incorrect pressure setting
Blockage of the pressure relief valve due to contamination
Presence of oil leaks from valves
Worn inside cylinder surface
Damage to piston seals
Incorrect selection of the piston seal
Internal leakage caused by the decrease in oil viscosity as a result of choosing a small tank
Presence of air in oil
Defective safety valve
Accumulator is broken or gas has escaped
Why Does the Hydraulic Pump Overheat?
Cavitation
Air formation in oil
High setting of safety or relief valve
Overload
Defective pump
hot oil
Decreased amount of oil
Blockage in the suction of the pump
Why does the Hydraulic Directional Control Valve not work?
Valve slider jammed due to contamination
Connecting bolts too tight
The oil is cold
Coil failure or no energy to the coil