FRITSCH PULVERISETTE 19 - Manual (Page 52)

Fault description Cause Remedy
Comminution material is
escaping
Material is extremely fine Insert sample exhaust system (see Ä Chapter 6.5
‘Sample exhaust system with cyclone separator’
on page 39)
Runs unevenly with strong
vibrations
Rotor imbalance Cones soiled (see Ä Chapter 6.1.4 ‘Inserting /
changing a rotor’ on page 31)
Bearing in closing lid (6) defec-
tive
Replace bearing
Pieces broken off rotor (3) Replace rotor (3) (Ä Chapter 6.1.4 ‘Inserting /
changing a rotor’ on page 31)
Rotor and fixed knives are
touching each other (audible
metal contact noise)
Switch device off immediately, disconnect from
mains, check gap widths and correct. Check rotor
and fixed knives for damage. (See
Ä Chapter 6.1.2 ‘Inserting / changing the fixed
knives’ on page 29)
Repairs
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