When disassembling the gear pump, pay attention to the following problems:

1. Gear pump is a precision parts, in the failure did not determine that really occurred in the gear pump, generally do not easily open.

2. After removing the gear pump assembly, clean the oil and dust on the outside of the oil pump assembly. Before disassembly, make a mark on the pump cover and pump body with steel sheet (as much as possible with marking pen) so as to assemble according to the mark.

3. If the parts are seriously worn and can not be used any more, they should be replaced in sets or pairs. If a pair of gears should be replaced, otherwise the poor meshing state of the two gears will affect the oil delivery pressure.

4. Disassembly and disassembly of the triple gear oil pump should be carried out in a clean place. After cleaning the removed accessories with gasoline or diesel, carefully check the grinding state of the accessories to confirm whether they can continue to be used, and then carefully place the accessories that can continue to be used in order.