Maintenance
7
Maintenance
Opening the pump casing invalidates the warranty.
When used for the intended purpose the bearings and seals are
virtually free of wear and will not require replacement during the
warranty period.
Maintenance and repair work should be undertaken in con-
sultation with Schmitt Kreiselpumpen. The chapter describes
maintenance not within the warranty period.
Maintenance during the warranty period will be performed
by Schmitt Kreiselpumpen. Submit evidence of conveyed
medium on request (DIN safety data sheet or confirmation
of decontamination).
7.1
Inspections
The inspection intervals depend on the operational strain
on the pump.
DANGER
Risk of injury due to running pump!
Do not touch the pump when it is running.
Do not carry out any work on the pump when it is running.
WARNING
Risk of injury and poisoning due to hazardous pumped
liquids!
Use personal protective equipment when carrying out any
work on the pump.
1. Check at appropriate intervals:
–
Adherence to the minimum flow rate
–
Normal operating conditions unchanged
–
Tank fill level
2. For trouble-free operation, always ensure the following:
–
No dry running
–
No leaks
–
No cavitation
–
Shut-off valve open on the suction side, if installed
–
Free and clean filters
–
Sufficient pump inlet pressure
–
No unusual running noises or vibrations
–
No parting of magnetic coupling
7.2
Servicing
Plain bearings are subject to natural wear and tear which
is heavily dependent on the respective operating condi-
tions. It is therefore not possible to make general state-
ments about the operating life.
DANGER
Danger to life and material damage due to magnetic field!
Make sure that personnel with pacemakers do not com-
plete work on the pump.
Secure the work place and if necessary cordon off:
–
Make sure that personnel with pacemakers keep a safe
distance of > 1 m.
–
Make sure that no magnetizable metal parts can be
attracted by the pump's magnetic coupling.
–
Make sure that parts of the magnetic coupling cannot
be attracted by the magnetizable metal parts.
Maintain a safe distance of at least 150 mm from the mag-
netic coupling for magnetically sensitive objects.
DANGER
Risk of injury due to running pump!
Do not touch the pump when it is running.
Do not carry out any work on the pump when it is running.
Before all installation and maintenance work, disconnect
the motor from the mains and secure it against being
switched back on again.
DANGER
Risk of electrocution!
All electrical work must be carried out only by qualified elec-
tricians.
Before all work on the electrical system, disconnect the
motor from the mains and secure against being switched
back on again.
WARNING
Risk of injury and poisoning due to hazardous or hot fluid!
Use personal protective equipment when carrying out any
work on the pump.
Allow the pump to cool completely before commencing any
work.
Make sure the pump is depressurized.
Empty the pump, safely collect the pumped liquid and dam-
age it in accordance with environmental rules and require-
ments.
7.2.1
Maintenance in accordance with main-
tenance schedule
Perform maintenance work in accordance with the mainte-
nance schedule
9.4 Maintenance schedule, Page 31).
11335/0320
SMP
17
