8
8. Maintenance guidelines
This submersible pump is an approuved, maintenance-
free high quality product, which is subject to severe final
controls.
We recommend, regular inspection and maintenance to
ensure long equipment life and uninterrupted operation.
Important! Note!
Remove the mains plug before all maintenance work.
In the event that the pump is often transported in the
course of operation, it should be
cleaned out with clear water after every use.
In case of stationary installation, the function of the
loating switch should be checked every 3 months.
All fibrous particles which may have built-up inside
the pump housing should be removed with a water
jet.
Every 3 months the shaft
ground and as should be
cleaned from mud.
Remove deposits on the floater with clear water.
Cleaning the impeller
If excessive deposits collect in the pump case you
must dismantle the bottom part of the pump as
follows:
1.
Undo the 4 screws from the bottom of the intake
cage.
2.
Remove the intake cage from the pump case.
3.
Clean the impeller with clear water.
Important! Do not put down or rest the pump on
the impeller!
4.
Assemble in reverse order
9. Setting the ON/OFF switching point
Automatic operation:
The ON/OFF switching point can be adjusted by
moving the floating switch cable on the carry-handle
(see Fig. 1).
Before you put the pump into operation, please
check the following:
The float switch must be installed so that the level of
the ON operating point and the level of the OFF
operating point can be reached easily and with little
force. To check this, place the pump in a vessel filled
with water, raise the float switch carefully by hand
and then lower it again. As you do so, note whether
the pump switches on and off.
Make sure that the distance between the float switch
head and the latching holder is not too small. Proper
operation is not guaranteed if the gap is too small.
When you set the float switch, make sure that it does
not touch the base before the pump switches off.
Caution! Risk of dry-running.
Manual operation / shallow water:
To operate manually or in shallow water, secure the
floating switch as shown in Fig. 2. This bridges the
floating switch so that the pump runs continuously.
Please note:
The depth of water must be at least 45 mm before
the pump can be run in manual mode!
Important!
The pump must not run dry!
10. Guarantee note:
Not covered by guarantee:
Destruction of rotating mechanical seal by dry
running or addition of foreign bodies in water
Transport damage
Damage caused by unauthorised persons
11. Ordering replacement parts
Please quote the following data when ordering
replacement parts:
Type of machine
Article number of the machine
Identification number of the machine
Replacement part number of the part required
For our latest prices and information please go to
www.isc-gmbh.info
GB
Anleitung NTP 75 09.11.2005 9:20 Uhr Seite 8
