Start Up; Preventive Maintenance; Pump Storage; Method For Filling Pump With Anti-Corrosion Emulsion Or Anti-Freeze Solution - Pratissoli MF Serie Manuel D'utilisation Et D'entretien

In case of prolonged storage or long-term
inactivity, you need to restore the proper
functioning of the suction valves by opening the
three valve-lift devices (see pos. ‚ Fig. 9). Make
sure you have closed the valves before starting
the pump.
For the "work" and "rest" positions, see Fig. 10.
2
VALVE CLOSED -
WORK POSITION -
10.2

START UP

1. At first start-up, verify that the rotation direction is correct.
2. Check that the pump is fed correctly.
3. Start-up the pump without any load.
4. Check that the rotation rpm during operation does not
exceed the nominal rpm of the pump.
5. Allow the pump run for no less than 3 minutes before
pressurizing it.
6. Before each pump stop, reset pressure by means of the
control valve or with any pressure relief devices.
11
For pump reliability and efficiency, comply with maintenance
intervals as shown in the table below.
Every 500 hours
Check oil level
To replace, follow instructions contained in the repair
*
manual.
Fig. 9
VALVE OPEN -
REST POSITION -
12
12.1
Method for filling pump with anti-corrosion emulsion or anti-
Fig. 10
freeze solution using an external diaphragm pump based on
the layouts shown in par. 9.7:
a) Close the filter drain line, if open.
b) Make sure the connecting pipe is clean, coat with grease
and connect it to the high pressure discharge.
c) Connect the suction pipe to the diaphragm pump;
open the pump suction connection and attach the pipe
between it and the diaphragm pump.
d) Fill the container with solution/emulsion.
e) Insert the free ends of the suction pipe and the high
pressure exhaust pipe inside the container.
f ) Switch on the diaphragm pump.
g) Pump the emulsion until it exits from the high pressure
exhaust pipe.
h) Continue pumping for at least another minute. The
emulsion can be strengthened if necessary by adding Shell
Donax for example to the solution.
i) Stop the pump, remove the pipe from the suction
connection and close with a plug
j) Remove the hose from the high pressure exhaust. Clean,
grease and plug both pipe connections.
12.2
a) Before greasing and protecting pipes according to
previously described procedure, dry connections with
compressed air.
b) Cover with polyethylene.
c) Do not wrap the pump too tightly and make sure there are
no folds.
32

PREVENTIVE MAINTENANCE

PREVENTIVE MAINTENANCE
Every 1500 hours
Check / Replace*:
Check / Replace*:
ATTENTION: On pumps without a reduction
unit, replace the bearings and the
corresponding seal rings every 6000
hours of operation.
On pumps with a reduction unit,
replace all the bearings and the
corresponding seal rings every 7000
hours of operation.
Perform periodical checks on cleaning and
maintenance on the pump. See "ATEX EXPLOSION
PROTECTION" manual.

PUMP STORAGE

Method for filling pump with anti-corrosion
emulsion or anti-freeze solution

Pipes

Change oil
Valves
Valve seats
Valve springs
Valve guides
H.P. seals
L.P. seals