Note: When using a tapered fit between gears and shafts, first place the driving gear onto the driving shaft. Install a locknut at the gear's locking area, then tap the gear end face with a copper rod and tighten the locknut. Once fully locked, remove the locknut, add a thrust washer, and securely lock it in place. Next, fit the driven gear onto the driven wheel, rotate the shaft according to the specified operating direction, and check the clearance between the two impellers. Adjust the impeller position by changing the circumferential position of the driven gear ring relative to the hub. After confirming the impeller clearance meets the specifications, securely lock the driven gear.

In the case of cylindrical fit, due to the tight fit, a higher pressure is required to mount the gear onto the shaft. Typically, a metal sleeve is placed on the gear end face, and then struck with a hammer, or a copper rod is used to directly strike the gear end face, pushing the gear onto the shaft. Once the gear reaches the shoulder of the shaft, it is locked in place.