KNF N680 EX, Manual

Page: 44 / 140

Returns Diaphragm pump N680 EX
44 Translation of Original Operation and Installation Instruction, english, KNF 325438 02/22
12 Returns
Preparing for return
1. Flush the pump with air for a few minutes (if necessary for safety rea-
sons: with inert gas) at atmospheric pressure to free the pump head of
dangerous or aggressive gases (see Chapter
9.2.1 Flushing the
pump ).
Please contact your KNF sales partner if the pump cannot be
flushed due to damage.
2. Remove the pump.
3. Clean the pump (see Chapter 9.2.2 Cleaning the pump ).
4. Send the pump together with the completed Health and Safety Clear-
ance and Decontamination Form to KNF, stating the nature of the
transferred medium.
5. Pack the device securely to prevent further damage to the product. If
necessary, request original packaging for a fee.
Returns
KNF shall undertake to repair the pump only under the condition that the
customer presents a certificate regarding the medium that is pumped and
the cleaning of the pump. Please follow the instructions at knf.com/repairs
here.
Contact your KNF sales partner directly if you require additional support for
your return service.