Dosing unit GRANUDOS Type Flex-CPR Touch XL,
Type Flex-Touch and Type Flex-S5
Index: 01 Change date: 11/10/2023
OI No.: BA SW 022-01 Granudos Flex Dosiereinheit EN.docx
Page 51 of 68
7
Maintenance / Care / Fault removal
For all activities not described here, consult your specialist dealer!
Recommendation: Device maintenance once a year by a specialist dealer / instructed persons!
7.1
Device maintenance
WARNING!
Danger due to electrical voltage! Before any electrical work is carried out, the device must
be disconnected from the power supply and secured against being reactivated!
All electrical work on the device must only be carried out by trained specialists in accordance
with the applicable safety regulations!
During all repair and maintenance work, the valves must be closed and the lines depressur-
ised to prevent injury.
We recommend that you assign a specialist firm to carry out regular maintenance.
TIP!
The maintenance tasks required for trouble-free operation are listed in the maintenance protocol in
Chapter 9.5. These tasks should be documented in the maintenance protocol as proof of work.
7.1.1
Cleaning the dirt filter
ATTENTION!
A clean dirt filter (34) is important for proper functioning. A contaminated dirt filter can lead
to cavitation in the booster pump, causing a reduced performance and damage to the bear-
ings. It is essential that you clean the dirt filter outside of the GRANUDOS.
When working on lines that carry water, always close the inlet and the outflow ball valves!
Procedure without flushing function
a)
Slowly close the inlet ball valve (Pos. 05, page 1205) and the outflow ball valve (Pos. 16).
b)
Loosen the upper pipe union d75 and the lower pipe union d25 at the dirt filter (Pos. 34, page
48) and completely remove the dirt filter from the bracket.
c)
Pull out the filter insert.
d)
Clean the filter insert and the filter hood under running water.
e)
Reinstall the dirt filter in the reverse sequence.
f)
Slowly open the inlet ball valve and the outflow ball valve.
Procedure with flushing function (option)
a)
Slowly close the outflow ball valve (16).
b)
Slowly open the flushing water ball valve (19) on the dirt filter and flush the dirt from the dirt
filter for approx. 30 seconds. Proceed until the dirt filter is clean. Please ensure that the water
can drain fast enough.
c)
Slowly close the flushing water ball valve on the dirt filter to avoid pressure surges.
d)
Slowly open the outflow ball valve (Pos. 16).
Summary of Contents for GRANUDOS Flex-CPR Touch XL
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