Apparently it has rarely happened that the bracket for the worm of the chute rotation-drive has broken off on the Type 498. It is therefore recommended to reinforce the weld
seams for the bearing tube of the auger bracket or, if possible, to weld in reinforcement plates. Alternatively, in the event of damage, it is also possible to retrofit the
rotation-drive using a Type 502 spur gear, which, however, entails considerable costs.