Panasonic EY4542 Service Manual page 6

4.2. How to Reassemble the Main Unit.
(The main unit can be opened without removing the shoe.)
Ref. No. 2A Procedure 2A Removal of the lower guard.
1. Remove the dust case.
2. Remove the 4 screws securing the safety cover B. Take out the
safety cover B.
3. Remove the lower guard stopper.
4. Take out the front cover and transparent cover.
5. Remove the inner washer and the stop ring.
6. Remove the lower guard with connecting the spring.
NOTE:
When removing the lower guard from the main unit, do not stretch
the spring.
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