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Repair of closed shaft hole of multistage pump

24 Jun 2019Email

(1) Detect the wear depth of the multi-stage pump shaft hole. If the wear depth is less than 4 mm in the diameter direction (ie, the radius direction is less than 2 mm), use a power tool to sharpen the position to be repaired. Note: Do not rub the surface too bright, the rougher the better.

 

(2) Wipe off the extruded repair agent. Remind again: When pushing the bearings of the multistage pump, it should be ensured that the repairing position is not lacking in glue.

 

(3) Position the multistage pump bearings.

a. The easiest way is to assemble the shaft and the bearing together with the glue. After the accuracy is determined, the repair agent is cured at this position.

b. When possible, use three-point gasket positioning method or make fixture positioning and assembly.

 

(4) It can be put into use after it is fully cured.

 

(5) Clean the surface of the bearing hole to be repaired with a new 1755 cleaning agent.

 

(6) Apply a thin layer of Kesaixin 1731 release agent to the outer ring of the multi-stage pump to facilitate the disassembly of the bearing in the future.

 

(7) Formulation of 2311 antifriction repair agent.

 

(8) Apply the repair agent directly to the outer ring of the bearing, but only apply to the rear half of the outer ring of the bearing. The amount of coating should ensure that there is no glue between the outer ring of the bearing and the shaft hole, and the gap must be filled with a repairing agent.

 

(9) Push the bearing coated with the repair agent into the shaft hole.

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