1. Install eccentrically. First tighten the steps on the adapter sleeve and hand-tighten the condom along the eccentric sleeve along the rotation axis. Then insert a small iron rod or place it in the sink hole to absorb the eccentricity. The bearing adapter sleeve rotates along the axis and is struck with a hand hammer using a small iron rod. The eccentric sleeve is installed securely and finally the eccentric hexagonal screw is locked.

2. Fix the adapter sleeve without tightening the bolts, and the bearing sleeve rotates inside the bearing. The bolts are then tightened well off, and a bearing seat is also installed, rotating the shaft a few times to the other end so that the bearing itself finds its position automatically.

3. Tighten the bearing sleeve, bearing seat and bearing lubrication paint, then assemble the bearing and bearing sleeve on the shaft. Push to the desired location for installation.

4. Before installing the fastening sleeve shaft, the fixed pin bearing jacket must be removed, and the magazine journal surface is smooth, polished, rust-proof, oiled, and lubricated (the bearing on the shaft is allowed to rotate slightly).