5.4
Pinto BT-POM 1212 - Revision 5
Lubrication & Maintenance
Pumps
Daily after Use
1 Flush pump with clean water.
2 Drain fi lters and clean. A high
percentage of pump failures are due
to blocked fi lters.
Every 50 Hours
Check surge chamber pressure and
adjust as follows:
• Air pressure 70-100kPa
(10- 15psi) [Should be 10-20%
of operating pressure].
Vibration of the delivery hose
usually indicates that the air
pressure in the surge chamber is
incorrect.
The main cause of surge chamber
diaphragm fracture is low pressure
in this chamber.
Surge chamber pressure can
be checked with an ordinary tyre
gauge.
The above pressure range is a
guide to the correct pressure.
However, if diffi culties recur, adjust
the pressure until an even fl ow is
obtained from the pump (no pulsing
of liquid at operating RPM). The
pressure is best increased with a
bicycle pump.
Every 250 hours or Every
Season - Whichever
Comes Sooner
1 Change oil and refi ll with 20W/30 oil.
Attention should be made to remove
trapped air behind the diaphragms
by rocking from side to side as
instructed.
It is also good practise to run the
pump for 10 minutes without
pressure, and then, top up with
oil before working the pump.
2 When changing the pump oil, check
diaphragms and replace them if they
are showing signs of wear.
This is normally a pre-season
maintenance procedure which can
be done easily as no special tools are
required.
You can avoid unnecessary down
time in spraying seasons by carrying
out the proper maintenance.
3 Also check inlet and outlet valves
and replace if worn. Worn valves
not only reduce the output of the
pump, but may reduce the life of
the diaphragms.
Diaphragm Pump
Maintenance
Annovi & Reverberi (A&R) pumps are of
the piston-diaphragm type. All parts in
contact with the spray liquid, which are
subject to corrosion, are pro tect ed, making
them ideal for spraying (herbicides,
insecticides, fungicides, fertilisers, etc.),
disinfection and washing.
Daily Before Starting the
Pump
1 Check that oil is visible in sight
glass (half way up) and top up if
necessary with good clean motor oil
20W/30 or 20W/40.
2 Clean all sprayer fi lters. Blocked or
semi blocked fi lters place extra
stress on diaphragms.
3 Start with zero pressure and the
pump will self prime immediately
and clear air locks in suction line.
Running a diaphragm pump faster than specifi ed
will not improve performance, but will damage
and wear out moving parts.
Warranty will be made void by speeds in excess
of those indicated on the pump name plate.
CAUTION
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