21.
Gently tighten the screws (1) and then
tighten them diagonally. See below for
tightening torque.
CAUTION!
Leakage possible
–
Check the tightening torque of the
screws after 24 hours of operation!
Tightening torque
Data
Tightening torque for screws:
–
With PP and PV dosing heads, check
the tightening torque again after three
months!
Value Unit
4.5 ... 5.0 Nm
Repairs
47