(1) Perform a complete scrub and inspection of all parts before assembly. Inspect parts for signs of scars, wear, and cracks. If any problems are found, they should be handled (repaired or replaced) before assembly.
　　
(2) Measure the outer diameter of the impeller mouth and the inner diameter of the seal ring with a vernier caliper, write the measurement results on the record, and calculate whether the clearance is 0.4 ~ 0.5mm. (3) Shear pad; Cover the mat used. (4) Assemble the rotor: (1) Insert the key on the pump shaft and attach the impeller (Note: the direction in which the impeller blades bend is opposite to the rotation direction of the pump, and should not be installed in reverse direction). (2) Install the front and rear bosses on both sides of the impeller, and fasten the front bosses and the impellers to the shaft with front and rear bosses.
　　
(3) Place the packing sleeve, water seal ring, packing gland, retaining ring and front bearing gland with green shell paper pad on the front sleeve, and install the sealing ring on the impeller. (4) Install the front bearing on the shaft and fasten the bearing to the shaft with the sleeve lock nut (note the positive and negative ports).
　　
(5) After the bearing and the bearing body are respectively joined with two-thirds of the volume of the lubricating body, the front bearing body is mounted on the bearing, and the bearing gland and the bearing body are fastened together by bolts.
　　
(5) Assembly:
　　
(1) Put the installed pump rotor on the pump body and turn the cylindrical pin on the seal ring into the pump body groove. If the impeller is not in the middle of the pump body groove, use a tight front and rear bearing lock nut to adjust.
　　
(2) Before and after the bearing body gland were bolted to the bearing body, while the tight side of the disc pump. (3) with heating or with a copper rod percussion method, will be installed on the key coupling mounted on the shaft.
　　
(4) install packing:
　　
a After measuring the length of the packing with the outer diameter of the sleeve, the average bevel cut is 30. Or 45. ,
　　
b put the water seal ring in the middle of the packing and add 2-3 packing before and after it, without the cut-out between the packing and the packing. ~ 120. , The last one cut open down.
　　
(5) a little grease on the contact surface of the pump body between the pump cover, plus a good green shell paper pad, the mat coated with a little grease. Mouth on the pump cover, put on the bolt, and the bolt will be good on the tight edge of the disc drive coupling, found that the rotation is not flexible and timely adjustment.
　　
(6) Put on the gland, tighten the gland packing gland, force to be uniform, gland end face perpendicular to the sleeve, to prevent partial wear. Tight, then release 1-2 buckle.
　　
(7) Hand wheel coupling check pump rotation is flexible, should be non-blocking card, emphasis on the phenomenon.
　　
(2) Measure the outer diameter of the impeller mouth and the inner diameter of the seal ring with a vernier caliper, write the measurement results on the record, and calculate whether the clearance is 0.4 ~ 0.5mm. (3) Shear pad; Cover the mat used. (4) Assemble the rotor: (1) Insert the key on the pump shaft and attach the impeller (Note: the direction in which the impeller blades bend is opposite to the rotation direction of the pump, and should not be installed in reverse direction). (2) Install the front and rear bosses on both sides of the impeller, and fasten the front bosses and the impellers to the shaft with front and rear bosses.
　　
(3) Place the packing sleeve, water seal ring, packing gland, retaining ring and front bearing gland with green shell paper pad on the front sleeve, and install the sealing ring on the impeller. (4) Install the front bearing on the shaft and fasten the bearing to the shaft with the sleeve lock nut (note the positive and negative ports).
　　
(5) After the bearing and the bearing body are respectively joined with two-thirds of the volume of the lubricating body, the front bearing body is mounted on the bearing, and the bearing gland and the bearing body are fastened together by bolts.
　　
(5) Assembly:
　　
(1) Put the installed pump rotor on the pump body and turn the cylindrical pin on the seal ring into the pump body groove. If the impeller is not in the middle of the pump body groove, use a tight front and rear bearing lock nut to adjust.
　　
(2) Before and after the bearing body gland were bolted to the bearing body, while the tight side of the disc pump. (3) with heating or with a copper rod percussion method, will be installed on the key coupling mounted on the shaft.
　　
(4) install packing:
　　
a After measuring the length of the packing with the outer diameter of the sleeve, the average bevel cut is 30. Or 45. ,
　　
b put the water seal ring in the middle of the packing and add 2-3 packing before and after it, without the cut-out between the packing and the packing. ~ 120. , The last one cut open down.
　　
(5) a little grease on the contact surface of the pump body between the pump cover, plus a good green shell paper pad, the mat coated with a little grease. Mouth on the pump cover, put on the bolt, and the bolt will be good on the tight edge of the disc drive coupling, found that the rotation is not flexible and timely adjustment.
　　
(6) Put on the gland, tighten the gland packing gland, force to be uniform, gland end face perpendicular to the sleeve, to prevent partial wear. Tight, then release 1-2 buckle.
　　
(7) Hand wheel coupling check pump rotation is flexible, should be non-blocking card, emphasis on the phenomenon.
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