Check And Maintenance; Cleaning - Faggiolati Pumps M420 Série Mode D'emploi Et D'installation

Mark the fastening holes for the expansion bolts,
remove the foot and drill 4 holes, insert the bolts and
rest the foot on them.
Position the guiding tubes on the special tapered
projection on the foot and determine its final length.
3. For wells that are more than 6 m deep, intermediate
brackets are necessary for the joining of the guiding
tubes.
4. Position the guiding tubes between the tapered
projection of the foot and that of the upper bracket;
again make sure that the tube is perfectly vertical.
5. Fasten the coupling foot using plain washers and nuts;
insert the upper bracket inside the guiding tubes
making sure that there is no verticals lack and fasten it.
6. Connect the delivery pipe to the coupling foot using a
plain gasket and screws.
7. Insert the gasket inside the coupling counterflange.
Fasten the counterflange to the pump delivery outlet
with screws.
8. To lower the pump inside the sump secure the chain to
the special eye bolt cast on the head of the unit.
9. Fit the coupling counter flange in the upper bracket and
lower the pump inside the sump, letting it slide along
the guiding tubes.
When it reaches the bottom, the pump will
automatically connect with the coupling foot.
10. Secure the chain and electrical cables to the upper
bracket, fit the electrical cables inside the special
guards between the well and the control panel.
Warning Make sure that the cables are not bent or
pinched, to avoid undue wear or damage.

CHECK AND MAINTENANCE

Danger WARNING!
fingers inside the suction inlet as there is
a risk of injuries due to contact with the
impeller. Keep in mind that the pump
may stop and restart
following the triggering of thermal
protections or of remote control devices;
only the interruption of the mains supply
may eliminate this risk.
INSPECTIONS
Periodical checks and preventive maintenance ensure safer
operation for a longer period of time. The pump must be
inspected at least once a year and, in case of operations under
particularly stressful conditions, the inspections must be more
frequent. On these occasions remember to check the oil.
Under normal working conditions the pump should be
overhauled by a qualified mechanic every three years.
MAINTENANCE PROGRAM
Check Maintenance
Check the hoisting chains and ropes.
Pumps outward Check guide rails are in vertical position.
parts and Tighten all bolts and nuts.
installation Replace or fix all the warn or damaged
parts.
An oil condition check may reveal
eventual infiltrations.
Insulating oil level
Warning! An air-oil mixture may be
and condition
confused with water-oil mixture.
Ball bearing
See "LUBRICATION"
lubricating grease
Impeller wearing In the eventual impeller wearing and also
level of parts in contact
Never introduce your
automatically
en
If the outward insulating protecting
Electric cables covering is damaged, replace it.
conditions Verify that cables are not bent or pressed
in a way to get broken or warn.
Verify it's functioning.
Float switches
Clean, adjust
Use a Meghommeter at 1000 V.
Outward insulation The insulation must be superior to 1
test meghom, both among different phases and
between each phase and the earth.
Verify it's functioning.
Cleaning cooling
jacket Clean, replace or repair damaged parts.
OIL CHANGE
The oil chamber is filled at the factory; if there are traces of water
or light emulsion the oil has to be changed. The pump must be
extracted from the sump. The oil plug is on the side of the oil
chamber; we suggest performing this operation at a shop.
Danger
LUBRICATION
The pump is supplied with lubricated ball bearings and is ready
for installations. Ball bearings must be periodically lubricated by
lithium soap grease, at least once a year. The periodical ball
bearings lubrication must be insert into the maintenance program.
The pump is supplied with suitable spring greasers. For grease
replacement, disassemble filler and drainer cups with relative
washers.
Assemble the suitable greasers, so inject grease by a grease gun.
The replacement is finished when from the drainer cup hole
cames out clean grease. Once replaced the grease, disassemble
greasers and assemble cups.
Warning! Seals washers must be always substituted.

CLEANING

For clean impeller from filamentous materials, it can be sufficient
to start the pump for a few seconds, with opposite direction of
rotation.
If the pump is used only occasionally it should be cleaned after
each operation by flushing with clean water to eliminate deposits
and caking.
We recommend you periodically check the condition of the
automatic level switches, especially in fixed installations. By
activating the selector switch (manual position) the tank or sump
pit are emptied. If any dirt deposits are found on the float switch
they must be removed.
After cleaning, the sump should be flushed with clean water. A
few start and stop cycles, with the selector switch in automatic
position, are recommended.
11
« Translation of the original instructions »
- WARNING! If there is infiltration
through the seal the oil chamber may be
under pressure. To avoid sprays wrap a
rag around the oil tank screw when you
loosen it.
- Loosen the oil chamber plug and let all
the oil out, then refill using the prescribed
quantity of lubricant (see page 4); tighten
the plug, remembering that the copper
washer must always be replaced.
- If you notice that the oil is emulsified or
that there are evident signs of water,
check the lower mechanical seal; replace
it if necessary or contact an authorized
dealer.