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WBV.PU.003.EN FX116 V1.0
23
6.4
Connectors
ATTENTION
Risk of breakage due to connectors under tension!
Flange connections can exert excessive forces on the machine.
The connectors must be mounted stressless. In other words, the connectors have to be precisely one in front
of the other, even when they are not screwed into place.
Note the
tightening sequence
when mounting the connectors:
Fig. 8: Tightening sequence
Tightening torques
M 8 hexagon head bolt (8.8, steel):
25 Nm
M 8 hexagon head bolt (A2, stainless steel):
20 Nm
Re-tighten all bolts for fastening the connections after 20 operating hours and then every 2000 operating
hours (at least once a year).
ATTENTION
Before installing stainless steel bolts and stainless steel nuts:
Clean threads and contact surfaces. Apply anti-seize paste (part no. BKL.014/BAS.001) evenly and in
sufficient quantity to the screw head face and bearing face and to the thread using a brush or filling knife etc.
to avoid seizing of stainless steel.
