1. Load the journal with the bearing heater when the bearing is evenly heated to about 120 degrees Celsius. During installation, tap the inner ring of the bearing with a copper rod, and check the clearance between the bearing and the shaft with a stop block after installation, to confirm that there is no clearance;

2. Use the lead wire method to measure the clearance between the bearing end cover and the bearing, adjust the axial clearance 0.1 ~ 0.15mm with the copper pad, and install the bearing end cover;

3. Install the impeller on the shaft. Before installing the impeller, match the key first;

4. Install the pump end cover. When installing the end cover bolts, different centers should be caused diagonally;

5, the pump is installed on the pump pry and aligned. Use the feeler and ruler to check the clearance of the couplings. The clearance of the two couplings is 2 ~ 6mm, and the intermediate adjustment of gaskets can not exceed 4 pieces for each group.