BLT421S Product Manual
17
A.2 Replace the upper protective window
Upper Protective
window
Upper Protective
window Base
Pressing Ring
1. Loosen the screws;
2. Pull out the upper protective mirror drawer;
3. Use mask tape to prevent dust from entering;
4. Remove the pressure ring on the protective window;
5. Replace the protective window;
6. Insert the upper protective mirror drawer with window into the cutting head.
1st Upper protective
window base
1st Upper Protective window
Drawer Door
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