What should I do if the winding box on the crane boom is not tightly wound?

If the boom is not locked, you should check whether the fastening rod in the lift box is acting. This is one of them.

The second is to adjust the gap between inner and outer columns to prevent action. In the lifting box, there are several hexagon socket bolts at the top of the column to loosen the rocker arm, and then tighten the nut on the fastening lever until the fastening lever can be fully opened.

When you say spindle dislocation, the gap between spindle box and guide rail becomes larger!

You have to adjust it on the splint. The gap is adjusted by two eccentric shafts on the splint.