en
Maintenance
30
WILO SE 2020-12
WARNING
Personal injury due to missing protective device!
Do not remove guards from rotating parts, belts, hot surfaces, etc. Never leave tools
or disassembled parts on or near the system.
NOTICE
Unauthorised people are not permitted to enter the pump room!
NOTICE
For heating the oil/water of the diesel motor, an immersion or contact heating ele-
ment, supplied with 230 V, can be installed.
NOTICE
No smoking and no naked flames
DO NOT SMOKE OR USE FLAMES WHEN CHANGING MOTOR OIL OR REFUELLING.
Units installed in accordance with these instructions normally operate with minimal
maintenance. The periodic inspections and controls planned and specified in EN 12845
are intended to keep the fire-fighting system and the water pressurization systems ef-
ficient. Please refer to the weekly, monthly, quarterly, six-monthly, annual, three-yearly
and ten-yearly inspection and control schedule specified in EN 12845.
NOTICE
Maintenance must be carried out by qualified personnel.
8.1
General maintenance require-
ments
ƒ
Perform general inspection of the assembly (including hydraulic and electrical power
supply systems) to check the external condition of all components.
ƒ
Carry out general cleaning.
ƒ
Check the tightness of the check valves
ƒ
Check the operating configuration of the controller
ƒ
Check that the warning lights on the connector set are working properly
ƒ
Check that the minimum tank/well level alarm is working properly
ƒ
Check electrical connections for insulation damage, burns, loosening of terminals,
etc.
ƒ
See also the procedures indicated in the user manuals specific for the various com-
ponents of the pressure-boosting system.
ƒ
Check that the minimum service material required by EN 12845 is available in stock
for rapid restoration of the system to full operation in the event of a fault
ƒ
Check that the idle fuel level alarm is working properly
ƒ
Check the battery charge level and charger voltage
ƒ
Check the correct operation of the solenoid shut-off valve on the diesel motor body.
ƒ
Check the level and viscosity of the lubrication oil of the pump bearing supports
where applicable.
ƒ
Check the priming circuit (especially in installations above the door leaf). During all
checks, check the following points:
–
All water and air pressure gauges of the system, main piping and pressure tanks
–
All water levels of storage tanks fed by aqueducts, rivers, canals, lakes (including
pump priming tanks and pressure tanks)
–
The correct position of all main shut-off valves
8.2
Automatic pump start test
The tests for automatic starting of the pumps shall include the following checks:
1. Check the oil and fuel level of the motor
2. Reduce the water pressure on the starter to simulate an automatic start request
(see Chapter 8).
