If the drill bit does not stay in the chuck and constantly falls out

[shapanqqcceqd]

Another reason why the chuck may not rotate is because the gear unit is jammed. If part of a gear tooth breaks off, it could be jammed inside the rotating elements, which causes jamming. If the gear unit is jammed, you will hear it. The engine will hum, but the tool will not work. Disassembling the tool and removing the jammed parts will help to fix this kind of breakdown.

If, when installing a drill or other attachments into the tool chuck, they fall out, the reason for this is non-compliance with the operating rules of the unit. Working with a tool that does not hold a drill or other attachments is not only difficult, but also dangerous.



If the cartridge does not hold, then the reason for this is its israel telegram data wear or breakage. To eliminate this type of breakage, you will need to disassemble the cartridge and identify the cause. The reasons may be the following factors:

Deformation of the locking balls for hammer drills with the SDS plus chuck type and rollers for SDS max
Development of a restrictive ring
Sagging of the retaining spring


By replacing the worn part, the chuck starts working properly again. How to disassemble the chuck of a hammer drill and repair it is shown using the example of the DIOLD sds max tool in the video below.

The cartridge does not hold in the hammer drill: reasons and repair
In addition to the fact that the chuck does not hold the nozzles, there are situations when the drill flies off together with the chuck. This is also an unpleasant phenomenon, which has its own explanation. The reason for such a breakdown is the wear of the body fastening, which fixes the element. The chuck body is fastened by a locking ring mounted on the end of the raster sleeve.