Shutting Down; Maintenance, Servicing; Longer Periods Of Non-Operation; Faults - Causes And Solutions - Xylem LOWARA TVS Série Instructions De Montage, De Service Et De Maintenance

Installation, Operating and Maintenance Instruction
100,0
10,0
1,0
1 10
Motor power [kW]
Diagram 1

7. Maintenance, Servicing

Work should only be carried out on the pump or
pump unit when it is not in operation. You must
observe Point 1.4 "Safety instructions".
Maintenance and servicing work must only be
carried out by trained, experienced staff who
are familiar with the contents of these Operating
Instructions, or by the Manufacturer's own
service staff.
The submersible pump
maintenance. Inspection work is limited to the
periodical measuring of insulating resistance (once
every 2 years, recommended once per year when the
motor is cold) as well as regular checking of the
operating voltage, current consumption and the flow
data. We recommend that you record and compare
these data in the "Log Book". The development of this

8. Longer periods of non-operation

When starting up, follow the instructions for
starting up for the first time (see Point 6)!
Check insulation resistance of installed units at
monthly intervals and carry out a short trial run to

9. Faults - Causes and Solutions

The following notes on causes of faults and how to
repair them are intended as an aid to recognising the
problem. The manufacturer's
Department is available to help repair faults that the
operator cannot or does not want to repair. For repair
Faults
Motor protection switches itself off
Electricity consumption too high. Releases motor protection. 2, 3, 4, 5, 6, 7, 24
Pump does not start
Pump runs but does not transport
Output too low
100 1000
requires virtually no
Customer Service
page 33
If two different figures are given, the lower figure is
valid.

6.3 Shutting down


Close the valve in discharge pipe right before
(max. 10 seconds) switching off the motor. This is
not necessary if there is a spring-loaded check
valve.

Switch off motor (make sure it runs down quietly).
data can perhaps make it possible to recognize
damage early on thus making it possible to avoid
greater damage or even complete destruction.
Slow reduction of the flow rate at the same discharge
level, with normal or reduced current consumption
indicates increased wear and tear of the pump
components (e.g. through sand). A large increase or
fluctuations in current
mechanical fault (e.g. increased mechanical friction
due to a defective bearing). The unit should be taken
out of operation immediately to prevent greater
damage.
The electrical devices should be inspected
annually by a specialist to see that they function
properly.
prevent the pump part getting stuck due to sediments.
The minimum flooding of the unit must be guaranteed
during this process.
and modification of the pump by the customer pay
attention to the design data of the order confirmation
as well as to point 1.2 - 1.4 of this instruction manual.
If necessary, the
manufacturer must be obtained.
Code no. for cause and method of repair
1, 2, 10
2, 3, 5, 7, 8, 9, 10
11, 12, 13, 14
15, 16, 17, 18, 19, 20, 21, 22, 23
Model TVS
consumption indicate
written agreement of
a
the