How to Repair Your Hydraulic Pump

When you see low pressure loud sound or leaks repair time may have arrived for your hydraulic pump. For a simple repair follow these steps:

Step 1: Turn Off the Machine
Before any repair work is initiated ensure that the machine is shut down and the hydraulic pressure is released fully to prevent accidents.

Step 2: Disconnect the Pump
Disconnect the pump from the machine. Mark the hoses or take pictures to assist in reconnection later in the correct sequence.

Step 3: Clean the Pump
Clean the outside surface of the pump to avoid introducing dirt into it. Carefully open the pump and examine the inner components.

Step 4: Check for Damage
Check for worn vanes, damaged seals, broken gears, or piston wear. Check the casing for any cracks. Document parts that are to be replaced.

Step 5: Replace Defective Parts
Replace the defective parts using new quality parts. Always employ proper tools and adhere to the pump manufacturer’s instructions.

Step 6: Replace Seals and Filters
Even if the seals appear to be fine it is best to change them with every major repair. Check and also replace oil filters to maintain cleanliness in the system.

Step 7: Assemble the Pump
Assemble the pump together and ensure each bolt and connection is tightened tightly. Fill the system with fresh oil and clear any trapped air.

Step 8: Test the System
After you have installed the pump back into the machine slowly turn it on and observe for any leaks. Verify if the pressure returns to its normal level and listen for any strange noises.

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