1. For those using a V-belt transmission, the main shaft of the power machine and the water pump should be parallel, and the pulleys should be aligned with a distance not less than twice the sum of the diameters of the two pulleys. When the water pump is connected to the power machine, a common chassis should be equipped and a claw type elastic coupling should be used. Attention should be paid to the concentricity between the power machine main shaft and the water pump shaft. 2. The installation height of the water pump (based on the water level of the suction tank) should be 1-2 meters lower than the allowable vacuum suction height. The soil at the homework location should be solid to prevent collapse or sinking into the ground.

3. Special attention should be paid to preventing air leakage during the installation of the inlet pipeline. The filter should be Submerged in water, it is about 30 centimeters. And maintain a certain distance from the bottom and walls of the pool to prevent the inhalation of impurities such as mud and sand, as well as air.

4. When laying the water outlet pipeline, the hose should avoid friction with objects such as stones and bark, avoid being crushed by wheels and trampled by pedestrians, and do not come into contact with running machinery. The hose should be rolled into a disc shape when moving, and should not touch the ground. Hard pipes should be disassembled into single sections for handling, and multiple sections should not be moved together to prevent wear and damage to the pipes and joints. Pipelines should be protected from direct sunlight and rain to prevent plastic pipes from deforming or aging.

5. Support the spray rack on the ground, and the joint end face of the spray rack should be placed as horizontally as possible to ensure even rotation of the nozzle, and then fix the spray rack. Install the nozzle on the spray rack, check if the nozzle rotates flexibly, pull open the rocker arm to see if the tension is appropriate, and add an appropriate amount of engine oil to the rotating part. Wipe the quick connector clean and connect it properly.

6. Before starting, check whether the rotation direction of the pump shaft is correct, whether the rotation is uniform, and whether there are any abnormal phenomena such as jamming or abnormal sounds.

7. Before starting the centrifugal pump, fill the pump with water and wait until the inlet pipe and pump body are filled before starting.