Wilo TS Serie Instrucciones De Instalación Y Funcionamiento página 15

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8 Commissioning
Danger! Danger through electric shock!
The pump may not be used to drain swimming
pools / garden ponds or similar place if anyone is
in the water.
CAUTION! Danger of property damage!
Do not allow the mechanical seal to run dry!
Dry running shortens the service life of the
motor and the mechanical seal. If the mechanical
seal is damaged, small amounts of oil may
escape into the pumped fluid.
• When filling the shaft or lowering the pump into
the pit, make sure that the float switches can
move freely. The switch must switch off the pump
before the intake openings of the pump can draw
in air.
• After filling the shaft and opening the check valve
on the pressure side (if provided), the pump starts
up automatically when the switch-on level 'h' is
reached and switches off as soon as the switch-
off level 'h1' responds.
• Do not point the water jet entering the shaft at the
pump strainer. Entrained air can prevent the
pumping of the pump when it is starting up.
• The maximum volume of water entering the shaft
must not exceed the performance of the pump.
Keep an eye on the shaft when commissioning the
pump.
NOTE: The venting of the pump when commis-
sioned for the first time will be improved by sub-
mersion in the fluid at an angle or by positioning it
at a slight angle.
Adjusting the switching level of the float switch
The perfect functioning of the level control sys-
tem is guaranteed if the details according to the
table in 7.1 and Fig. 2 are observed.
The switching level (switch-on/off point) can be
changed via the free float switch cable by moving
the cable within the clip on the pump handle.
NOTE: In order not to damage the float switch
cable when adjusting the level, the clip has to be
released.
If necessary, by pegging the float switch in a
higher position, a drainage level of
up to approximately 8 mm (TSW: 18 mm) can be
achieved.
To do this, release the float switch clip on the
pump handle.
Installation and operating instructions Wilo-Drain TS/TSW
Raise the float switch in relation to the handle and,
working in the opposite direction, fix the cable, as
close to the switch as possible, on the handle
again with the aid of the clip. The automatic sys-
tem is then switched off and the pump runs con-
tinuously.
An automatic operation can also be achieved with
the aid of switchgear from the accessories range.
9 Maintenance
Maintenance and repairs may only be carried out
by qualified experts!
DANGER! Risk of fatal injury!
There is a mortal danger through shock when
working on electrical equipment.
• Before any maintenance and repair work, the
pump must be switched off and prevented from
being switched on again in an unauthorised
manner.
• Damage to the connecting cable may only be
repaired by a qualified electrical contractor in
principle.
• When checking the function following long
downtimes, avoid contact with the fluid.
In order to prevent blockage of the pump resulting
from long downtimes, its ability to function should
be checked at regular intervals (every 2 months)
by manual raising of the float switch or direct
switching-on and brief start-up of the pump.
Minor wear of the rotary shaft seal and mechanical
seal can lead to fouling of the liquid following an
oil leak from the oil chamber, which is filled with
medical white oil.
Only specialist companies or Wilo After-sales
Service may open the encapsulated motor.
Cleaning the pump
Depending on the use of the pump, fouling can
occur within the suction strainer and the impeller.
Rinse off he pump under running water after use.
1 Switch off the power supply. Disconnect the
mains plug.
2 Drain the pump
3 The suction strainer is bolted to the pump
housing. Undo the 2 screws on the suction
strainer with a suitable screwdriver and
remove the suction strainer.
4 Clean the suction strainer under running
water.
5 Undo the 4 screws on the bottom part of the
pump housing and remove the housing. Han-
dle the O-ring between the pump housing and
motor housing carefully.
6 Clean the impeller and pump housing under
running water. The impeller must turn freely.
7 Replace damaged or worn parts with original
spares.
8 Re-assembly the pump in the reverse order.
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