Maintenance - STERWINS 900 WT 24-4 Notice De Montage, D'utilisation Et D'entretien

8. MAINTENANCE

serious injury. Switch the product before adjusting,
inspecting, cleaning or storing the product.
8.1 CLEANING
1. Disconnect the pump
2. Unscrew the discharge connection
3. Clean the discharge part of the pump with clean water
Check the integrity of the electrical cable.
Illustration 5.3 and 5.4
8.2 MAINTAIN
• Have your product serviced by a qualified repair person using only identical replacement parts.
This will ensure that the safety of the product is maintained.
• Have the product checked by a qualified professional and
repaired, if necessary, before you use it again.
Illustration 5.1
Regular checks
Check monthly the tank pressure using a manometer (not provided).
around 1.8 bar. Water under pressure causes the membrane to expand in such a manner that pressure in
the air compartment increases until it reaches the stopping pressure. If the air pressure is too low, raise it
tank, never exceed the pressure of 1.8 bar.
Before checking the tank pressure, make sure that all the
discharge circuit valves are open in order to empty all the water
that is under pressure, and thus obtain an exact measurement
of the air pressure in the tank.
Changing the membrane
After performing the checks indicated in the Troubleshooting section, if the membrane needs to be
changed, proceed as follows: (it is strongly recommended to get some help from a specialist.)
• Unscrew the cover of the tank valve, then push the valve to release all air completely.
Illustration 5.2
211
FR
ES
PT
IT
EL
PL
RU
KZ
UA
RO
EN