FRITSCH PULVERISETTE 14 - Manual (Page 44)

Functional part Task Test Maintenance interval
Fan,
filter mats Cooling
Grinding chamber and elec-
tronics
Proper functioning, clean
when soiled
Twice a year
Rotor
Sieve Sample comminution
Sample division Visual inspection Before each use
8.2 Drive motor
The three-phase motor does not require any maintenance.
8.3 Safety
n Inspect the interlock for soiling before beginning work, especially the
slit that holds the actuator.
n Always keep the interlock clean and free of dust.
n Check that the actuator can properly enter the interlock.
n Before beginning work, open the housing cover far enough so that
the actuator is just outside of the interlock and simulate a start-up
test with opened housing cover.
n If the device starts up, switch it off immediately, take it out of
service and replace the interlock.
8.4 Electronics
The electronics do not require any maintenance.
Maintenance
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