QF150S; edition 2016-05; page 12 of 19
4. Maintenance/Servicing of the QF 150S
Due to the robust construction the Quattroflow pump are widely maintenance-free. The ball bearings
do not need any extra lubrication.
The diaphragms, valves and o-rings should be checked in regular intervals and if needed they has to
be replaced (Service kit diaphragm-valves-o-rings: PSKITQF15MU). We recommend the following
maintenance intervals for the different pump parts:
Component Maintenance
interval
Action
Elastomer parts
(diaphragm, valves, o-
rings)
1000 h operating hours,
at least once a year
Replacement of the elastomer
parts (order no. PSKITQ15)
Shaft-bearing-cap unit
1000 h operating hours,
at least once a year
Replacement of the complete
unit (kit order no.
PSKITWLC155)
Motor
Pay attention to the maintenance information of the manual of the
motor
Coupling
Pay attention to the maintenance information of the manual of the
coupling
Gear
Pay attention to the maintenance information of the manual of the
gear
Depending on the operation conditions (pressure, temperature, flow rate, SIP, etc.) it may be
necessary to shorten the maintenance intervals for the elastomers significantly.
In case that the diaphragm broke it needs to be replaced. Then it is also recommended to check the
ball bearings. For corrosion reasons or a clearly audible operating noise the parts of the bearing
service kit should be also replaced. (PSKITWLC155). In general it is recommended to replace the
elastomer parts whenever the pump chamber is opened.
Please follow the general guidelines and safety advices when
handling with chemicals
.
Disconnect mains supply before opening the pump housing!
Basically, operations at the pump must be performed during standstill only. The motor
has to disconnect from the power supply, e.g. by pulling out the power plug or using a
repair switch, and has to secure against unintentional switch-on. This can be realized by
a lockable emergency switch. To prevent an accidental re-starting a danger sign should
be installed..
After purging the pump with air there might be a small residual
amount of fluid inside the pump chamber.
Flush the pump chamber thoroughly and check the rinse fluid.
The dismounting and mounting of the pump should be done on a
rigid table or work bench. Please note: the pump is heavy.
All further warning and safety instruction of chapter 3 has to be
respected.
