Damage to the pump head
Using a wrong torque will damage the pump head.
➔ For handling the torque wrench, setting and applying
the right torque, consult the manual of your torque
wrench.
19 Install the pump head assembly by fixing the 4 screws
using a 4 mm hex key and a torque wrench, which are
included to the 1290 Infinity Service Kit p/n 5067-4699
set to 5 Nm. Install screws step by step, not screw by
screw.
20 Install flow connections as described in Replacing the
Pump Heads in the user manual.