Pump industry suppliers to tell you: the forced circulation pump overhaul and maintenance of the idea

forced circulation pump overhaul and maintenance of the idea of contents:

1. Check the pump body and pulley for wear and damage, when it is necessary to replace. Check whether the water pump shaft bending, journal for wear and shaft end thread is damaged. Check whether the impeller blade fracture, heavily damaged shaft hole whether check water seal and the degree of wear of bakelite gasket, if more than the limit, replace the water seal and bakelite gasket, check the bearing wear.

2。 After pump out, can be dismantled in order. Parts should be removed after decomposition, and then checked with and without defects such as crack, damage, abrasion. Have serious defects, should be replaced.

3。 When the pump body has the following injury, allows weld repairs: within 30 mm in length, the crack does not extend to the bearing hole; Connected to the cylinder head flange has broken pieces; Oil seal hole is damaged. Water pump shaft bending shall not exceed 0. 5 mm, otherwise should be replaced. Impeller blade damage should be replaced. shaft diameter wear serious when, should be replaced or inlaying.

4。 Check whether forced circulation pump bearing flexible rotation or have abnormal noise. If there are any problems, bearing should be replaced.

5。 Water seal and seat repair: water seal wear, notching, available emery cloth smooth if you wear too much, should replace the seal if there is a rough cut, plane reamer or lathe repair available. Maintenance new water seal parts should be changed.

6。 After the water pump assembly, rotating with the hand, pump shaft no card lag phenomenon, the impeller and pump casing friction then check that the pump displacement. If there is a problem, check the reason and ruled out. If the pump fails, cooling fluid will not be able to reach the corresponding position, its performance will not be able to effectively play, ultimately affect the engine working condition. Therefore, it is necessary to strengthen the detection of water pump.

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