KNF LABOPORT N820.18 EX Operating Instructions Manual page 106

Servicing
46
Chemically-resistant Laboratory pump N820.18 EX / N840.18
11. Tighten the screws (2/Fig. 8) of the handle cover (3/Fig. 8)
(tightening torque: 2 Nm).
Final steps
WARNING
1. Function test
à
Connect the suction and discharge pressure sides on
the pump.
à
Electrically connect the pump.
à
Test the pump for proper function (among other things,
ultimate vacuum).
à
Again disconnect the pump electrically and pneumati-
cally.
2. Pump integrated in application
à
Connect the suction and discharge pressure sides on
the pump.
à
Electrically connect the pump.
à
Test the functionality of the pump.
Translation of Original Operating Instruction, KNF 317428-317425 05/21
Risk of explosions from leaks
à
Before recommissioning the
pump, check the pump heads and
pneumatic connections for leaks.
Leaks may lead to a risk of explo-
sion.
EX