Rexroth piston pump is one of the most famous hydraulic pumps in the world, around the world have a certain Rexroth hydraulic pump consumer group, although Rexroth hydraulic pump enjoys a certain popularity, but there are still a considerable number of people do not understand the correct use of Rexroth hydraulic pump, once the hydraulic pump has problems or failures, will directly affect the normal operation of the machine, therefore, understand the common faults of Rexroth hydraulic pumps and solutions, can check and repair the hydraulic pump by themselves, Reduce the time it takes to send the hydraulic pump to the service station, and finally, Pyrix Hydraulics will introduce you to the specific inspection and solution when the oil discharge volume of the Rexroth axial piston pump is insufficient.
When Rexroth axial piston pump drains insufficient oil, the actuator moves slowly.
1. The fuel level of the fuel tank is too low;
2. The oil suction pipe and oil filter are blocked or blocked too much;
3. The pump body is not filled with oil, and there is residual air;
4. Wear between the plunger and the cylinder block or the oil distribution plate and the cylinder block;
5. The return stroke of the plunger is not enough or cannot be returned, and the delay causes the loss of seal between the cylinder block and the oil distribution plate;
6. The variable mechanism fails and fails to meet the work requirements;
7. Improper oil temperature or air leakage;
Troubleshooting methods
1. Remove the oil pipe blockage and clean the oil filter;
2. Check the amount of oil and refuel properly;
3. Remove the air in the pump;
4. Replace the plunger, repair the contact surface between the oil distribution plate and the cylinder block to ensure good contact;
5. Check the center spring to replace;
6. Check whether the variable mechanism is flexible and correct its errors;
7. According to the actual situation of temperature rise, select the appropriate oil and tighten the connection that may leak;
