Heraeus HS 9 Service Manual page 110

Sequence of Tasks to be Performed:
1. Disconnect the unit from the mains power supply (power plug !).
2. Open the control panel.
Open the hood.
Remove the five self-tapping screws (A).
Remove the cover (B).
B
A
5. Remove the position switch wiring set.
6. Replace position switch S11.
7. Secure relay K7 with the self-tapping screw.
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