Pratissoli MK2 Serie Manual De Uso Y Mantenimiento página 54

With pneumatic control valve
Inlet
Supply tank
User specific lay-out
The filter must be installed as close as possible to the pump
and be easily inspected.
For the pump to work properly, the degree
of filtration and accumulating capacity of the
filtering system must be sized to achieve the
best compromise between the durability of the
pump's hydraulics and the number of hours
worked between each filling with water.
The best recommended compromise is the one
illustrated in par. 17.1.1.
It is imperative, after using the pump, at the end
of the working day, to wash it with particulate-
free water.
17.1.7 Preventive maintenance
For pump reliability and efficiency, comply with maintenance
intervals as shown in the table below.
PREVENTIVE MAINTENANCE
Every 500 hours
Check oil level
HP-LP seals: durability depends on the degree of
filtration, type of fluid and percentage in volume
(see chapter 7).
To replace, follow instructions contained in the repair
*
manual.
1 Filter
2 Pressure gauge
3 Pressure switch
4 Plunger pump
Every 1000 hours
Change oil
Check / Replace*:
Valves
Valve seats
Valve springs
Valve guides
54
5 Pressure gauge 8 Pneumatic control
6 Safety valve
7 Accumulator
Bypass
valve
Fig. 12/a