CLB/EN (1901) 6.6
Maintenance
29
CombiLineBloc
5 Maintenance
5.1
Daily maintenance
Regularly check the outlet pressure.
No water should get into the terminal box of the electric motor when the
pump room is sprayed clean!
Never spray water on hot pump parts! The sudden cooling down may cause
them to burst and hot water may flow out!
!
Flawed maintenance will result in shorter lifespan, possible break down and
in any event loss of warranty.
5.2
Mechanical seal
A mechanical seal generally requires no maintenance, however,
it should never be
allowed to run dry.
If there are no problems, do not dismantle the mechanical seal. As
the seal faces have run in on one another dismantling usually implicates replacement of
the mechanical seal. If a mechanical seal shows any leakage it has to be replaced.
5.3
Lubrication of the bearings
For maintenance of the motor bearings we refer to the instructions of the motor supplier
concerned.
5.4
Environmental influences
• When a unit is out of operation and there is a risk of freezing, it is recommended to
drain the unit.
• If the pump is out of service for a long time, it has to be preserved.
• Check motor for accumulation of dust or dirt, which might influence motor
temperature.
5.5
Noise
If a pump starts making excessive noise, this may point to certain problems with the
pump unit. A crackling noise can indicate cavitation or excessive motor noise can
indicate deterioration of the bearings.
5.6
Motor
Check motor specifications for start-stop frequency.
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