Fritsch PULVERISETTE 15, Руководство по эксплуатации, Страница: 18 / 19

pulverisette 15 page 15
6.1 Removal and fitting of cutting blades
Depending on the materials chopped and the operating hours, the rotat-
ing blades must be changed or, like the fixed blades, sharpened or re-
placed.
6.1.1 Removal and fitting of rotating blades
To remove the rotating blades, open the upper part of the housing (see
section
5.1 Cleaning the mill chamber ). The rotating blades are then
freely accessible. The fixing screws can be loosened with a 6-mm hex-
agonal key.
When fitting, first align only one blade parallel to the edge of the rotor
and screw it fast.
⇒
This blade is used to adjust the fixed blades.
The remaining three rotating blades are not fitted until the fixed blades
have been fitted and/or adjusted, and are set for a spacing of 0.2 – 0.3
mm from the left-hand fixed blade.
6.1.2 Removal and fitting of fixed blades
To remove one of the fixed blades, loosen the middle fixing screw and
withdraw the blade.
Before
fitting the fixed blades, at least one rotating blade must be in-
stalled.
The fixed blades are held in position by the middle fixing screw and the
two outer pressure screws.
The gap between this blade and the installed rotating blade is adjusted
to 0.2 – 0.3 mm (80 g/m
2
printing paper folded in two).
Attention :
After setting the fixed blades, be sure to tighten the fixing screws.
After fastening the fixed blades, the remaiing 3 rotating blades are fitted
and screwed tight (see above).