Operation Manual / 4 Product description / A150-M.. - A155-M..
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Do not clean pressure screws
The pressure screws are equipped with a permanent sliding layer that must
not be removed.
Do neither clean nor lubricate the pressure screws. In case of non-
compliance, it cannot be ensured that the necessary tension force is
reached.
Do not clean pressure screws.
Do not lubricate pressure screws.
Figure 7: Loosening the clamping nut
Working in a circle, break loose all pressure screws of the clamping nut.
Working in a circle, loosen each of the pressure screws by about ¼ of a turn (90°).
Repeat the previous step until all pressure screws are relieved of pressure.
Loosen clamping nut by hand.