The correct method for distinguishing the rotation direction of hydraulic gear pumps
A、 Observe the pump body identification symbol The pump body of hydraulic gear pumps is usually marked with symbols indicating the direction of rotation, which can be signs with arrows or text. Some markings are used to distinguish between forward and reverse directions. The indication of rotation direction is usually affixed to the suction port, pressure port, or pump body of the pump. If these identification symbols are blurred or smeared, other methods can also be used to identify the direction of rotation of the gear pump.

B、 Observe the gear wheel rim The two gears of the gear pump are the driving gear and the driven gear. When the driving gear rotates clockwise, the driven gear also rotates clockwise. When the driving gear rotates counterclockwise, the driven gear also rotates counterclockwise. Therefore, by observing the shape of the teeth on the gear rim, the rotation direction of the gear pump can be determined. When the gear profile is to the left, the rotation direction of the pump is counterclockwise; when the gear profile is to the right, the rotation direction of the pump is clockwise.

C、 Confirm the rotation direction of the gear pump by using an electric motor to achieve forward and reverse rotation If the above two methods cannot determine the rotation direction of the gear pump, it can be confirmed by using an electric motor to achieve forward and reverse rotation. Firstly, connect the two wires of the motor to the gear pump, then start the motor and pay attention to the direction of rotation of the gear pump. If the rotation direction is opposite to the desired direction, forward and reverse rotation can be achieved by replacing the motor wires. In short, it is very important to correctly distinguish the rotation direction of the hydraulic gear pump before using it, which can ensure the normal operation of the pump, extend the service life of the pump, and avoid damaging the hydraulic mechanical equipment.


The above:Detailed explanation of disassembly method for hydraulic gear pump pin