En
gl
is
h (
G
B)
40
8. Service
In order to ensure a long service life and dosing
accuracy, wearing parts such as diaphragms and
valves must be regularly checked for signs of wear.
Where necessary, replace worn parts with original
spare parts made from suitable materials.
Should you have any questions, please contact your
Grundfos service partner.
8.1 Regular maintenance
8.2 Cleaning
If necessary, clean all pump surfaces with a dry and
clean cloth.
8.3 Service system
According to the motor runtime or after a defined
period of operation, service requirements will
appear. Service requirements appear regardless of
the current operating state of the pump and do not
affect the dosing process.
* Since the last service system reset
Fig. 42
Service soon!
Fig. 43
Service now!
For media which result in increased wear, the service
interval must be shortened.
The service requirement signals when the
replacement of wearing parts is due and displays the
order number of the service kit. Press the click wheel
to temporarily hide the service prompt.
The displayed service kit contains the standard
service parts.
For the full range of service kits and spare parts see
the service kit catalogue:
•
http://net.grundfos.com/qr/i/96488862_23
or the Grundfos Product Center:
•
https://product-selection.grundfos.com
When the "
Service now!
" message appears
(displayed daily), the pump must be serviced
immediately. The
symbol appears in the
"
Operation
" menu.
The order number of the service kit required is also
displayed in the "
Info
" menu.
Maintenance work must only be carried out
by qualified persons.
The pump housing must only be opened
by persons authorised by Grundfos.
Observe section
.
Interval
Task
Daily
Check, if liquid leaks from the drain
opening on the dosing head and if the
drain opening is blocked or soiled.
See fig.
-
, pos. 8.
If so, follow the instructions given in
section
.
Check, if liquid leaks from the dosing
head or valves.
If necessary, tighten dosing head
screws with a torque wrench. Torque
[Nm]: 6 (+ 1).
If necessary, tighten valves and cap
nuts, or perform service. See section
Check, if a service requirement is
present at the pump display. If so,
follow the instructions given in
section
Weekly
Clean all pump surfaces with a dry
and clean cloth.
Every 3
months
Check dosing head screws.
If necessary, tighten dosing head
screws with a torque wrench. Torque
[Nm]: 6 (+ 1). Replace damaged
screws immediately.
Service requirement
Motor
runtime
[h]*
Time interval
[months]*
Service soon!
7500
23
Service now!
8000
24
T
M
0
6
7
117
291
6
T
M
06
71
17
2
9
1
6
Service soon!
Please exchange
diaphragm and valves!
Service kit:
97xxxxxx
Service now!
Please exchange
diaphragm and valves!
Service kit:
97xxxxxx
