FRITSCH PULVERISETTE 7 classic line - Manual (Page 46)

Fault description Cause Remedy
Micro-fuse on the board blown To check the micro-fuse the housing
has to be removed.
Grinding stock escapes Clamping device loose Tighten clamping device
Sealing ring defective Replace the sealing ring
Soiling on sealing ring, or dirt has
penetrated it
Clean or replace if necessary
Runs unevenly with strong vibrations Inadequate mass balancing Correct the mass balancing
Repairs
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