59
Code F07012287
USE AND MAINTENANCE
ENGLISH
BRAND COMET
APS 96 l/min 88
APS 121 l/min 115
APS 145 l/min 142
IDS 960 l/min 93
IDS 1401 l/min 135
IDS 2001 l/min 182
Fig. 82
1
2
Fig. 83
6.5.5 PUMP
The main pump of the machines is of the membrane type.
To use the pump, strictly comply with the enclosed manual
provided by the Manufacturer.
The pump is identifiable from the plate; the main pressure
and flow rate data can easily be found on it.
The pump installed on the machine guarantees perfor-
mance at 550 RPM with slightly lower results due to load
losses in suction and wear condition.
During periodic tests it is required to notify the test centre
of the correct values in the table in the above mentioned
manual, which in any case are generally around 5% less
than the rated data.
The pumps must not exceed 540/550 RPM; a higher
number of revolutions does not greatly improve flow rate
performance, but risks severely to affect the life span of
the pump and its safety.
A safety valve (1) is fitted on the pump, suitably calibrated
to prevent overpressure.
ATTENTION
Do not tamper with this valve for any reason and do
not obstruct the pipes connected to it in any way.
The machines are tested before shipment, the pump
therefore works correctly.
Check for oil in the volumetric compensator (2) and the
integrity of fittings and connections.
Some manufacturers indicate, on the cap of the volumet-
ric compensator, the type of oil to be used for top ups or
periodic replacement; in any case it is always normal oil
for petrol car engines easily available on the market.
We would like to remind you the importance of inside
washing after each treatment: the chemical aggressive-
ness if plant protection mixtures, is directly proportional to
the exposure time.
Failing washing, aggressiveness dramatically increases.
Desmopan, Viton and nitrile rubber spare membranes
are available, the manufacturer uses nitrile rubber mem-
branes in the pumps as original installation.
In the event of operation anomalies, first of all make sure
the suction and delivery circuit of the machine is correctly
set up (check correct positioning of all specific levers); if
the levers are correctly positioned refer to tables 23 - 24
“issues causes-solutions” in the Maintenance chapter.
The membranes - like suction and delivery valves and oil
- are parts subject to wear hence they are not recognised
under warranty. Their duration depends on the machine's
conditions of use, the number of hours of utilisation, the
degree of aggressiveness of the chemicals used and
maintenance performed.
Example of pump identification plate