Causes of Noise in Hydraulic Systems:

•  Incompatible or Dirty Oil Filter: The filter size may not match the pump suction size, or the filter may be dirty.
• Blocked Suction Port: The suction port may be obstructed.
• Loose Pump Body or Housing: The pump body or housing may be loose.
  Improper Sealing of Suction Line: Inadequate sealing can allow air into the system.
• Improper Sealing of Valves and Connections: Air can enter the pump from inadequately sealed tank valves and connection.
• Mismatch Between Hose/Pipe Diameter and Pump Suction: Disparity in size can cause pump vibration.
• Misalignment of Motor Shaft (Uncalibrated Coupling): The motor shaft may not be aligned correctly.
• Excessively Cold or High Viscosity Hydraulic Oil: Cold oil or oil with high viscosity can cause noise.
• Damaged Seals: Seal damage can lead to noise.
• Internal Seal Failure and Leakage: Loss of internal sealing can cause noise.
• Non-Standard Hydraulic Oil Tank: Tank capacity may not be suitable for the pump flow rate.
• Low Oil Level in Tank: Low oil level can lead to noise.

Causes of Unauthorized Pressure Drops in Hydraulic Systems:

• Excessive Internal Leakage: This can occur in pumps, cylinders, hydraulic motors, valves, and check valves.
• Faulty Pressure Adjustment or Control Valves: Incorrectly set or faulty valves can cause pressure drops.
• Low Pump Drive Speed: Insufficient speed can reduce pressure. Inappropriate Hydraulic Oil Viscosity: Oil viscosity outside the permissible range can cause pressure drops.
• Inappropriate Valve Selection: Valves may not be suitable for the pump’s flow rate and pressure.
• Clogged Oil Path: Blockages in the oil path can reduce pressure.
• Worn Pump Shaft: A worn shaft can cause pressure drops.

Causes of Insufficient Flow in Hydraulic Systems:

• Inappropriate Rotation Speed: Speed may be lower or higher than specified.
• Incorrect Pump Capacity: The pump capacity may not match the actuator speed requirements.
• Faulty Pressure Adjustment or Control Valves: Incorrect settings can cause insufficient flow.
• Inappropriate Hydraulic Oil: High viscosity oil can restrict flow.
• Pump Wear and Tear: Excessive wear can reduce internal flow rate.
• Low Oil Level in Tank: Insufficient oil level can reduce flow.
• Inadequate Pump Suction: Suction filter may be clogged.
• Incorrect Pump Rotation Direction: The pump may be running in reverse.

Causes of Excessive Heat in Hydraulic Systems:

• Excessive System Pressure: Incorrectly set control valves can cause high pressure.
• Constant Pump Pressure: The pump may remain under continuous pressure.
• Internal System Leakage: Leakage in pumps, cylinders, and valves can generate heat.
• Insufficient Oil Tank Capacity: The tank may not hold enough oil for the system.
• Ineffective Cooling System: The cooler may not be working efficiently.
• Excessive Pump Flow Rate: The pump flow rate may exceed system requirements.
• Inappropriate Pressure Line Tubes and Hoses: Lines may not be suitable for the pressure in the system.

Causes of Rapid Component Wear:

• Excessive Hydraulic Oil Wear: Overuse and environmental contamination can degrade oil quality.
• Lack of Proper Filtration: Inadequate filtration can lead to component wear.
• Use of Inappropriate Oil: Incorrect oil type can cause wear.
• High System Pressure: Excessive pressure can accelerate wear.
• Improper Pump Selection: The pump may not be suitable for the system.
•  Incorrect Pump Installation: Excessive forces on the pump shaft can cause wear.
• Air Ingress in Pump: Air entering through the suction areas can cause wear.
• Oil Contamination: Contaminated oil can damage system components.
• Cavitation: Cavitation can severely damage components.