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Comet VR 10 Notice Technique page 19

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  • FRANÇAIS, page 24
pressures from 20 bar (290 psi) to 50 bar (725 psi). The remaining control units dealt with in this paragraph
are all equipped with a constant-pressure regulation valve.
d) Turn the tap lever (10) to
etc.) concerning the tap.
Note. The VR 10, VR 15, Hydra, VR 20, VR 40 and VRS control units do not feature built-in taps.
e) To start the anti-dripping eddy device (on HPR and GRV 2V/4V models only), turn the by-pass/pressure
lever (9) to
"BY-PASS" POSITION
Note. The anti-dripping eddy device only works on accessories which feature the corresponding tap on
.
POSITION
The instructions of the previous paragraph plus the following information apply to this control unit which is
equipped with a constant-pressure regulation valve,.
f) Turn the general closing lever (8) to
g) To start the anti-dripping eddy device (if any), turn the general closing lever (8) to
the by-pass/pressure lever (9) to
Note. The anti-dripping eddy device only works on accessories which feature the corresponding tap on
.
POSITION
WARNING
• For a good operation of taps, always carry out the opening and closing operations after having set the
pump pressure, by turning the lever (9) to
To these control units, equipped with a constant-pressure regulation valve, the instructions of figure 4 apply.
a) Turn the selecting lever (12) to
(figure 4-a).
Note. The selecting lever can rotate clockwise or anticlockwise.
b) When the pump has primed, turn the selecting lever (12) to
pressure (figure 4-b).
Note. In such a condition it is possible to use lances and/or a mixer nozzle in a tank.
c) Turn the wing nut (7) clockwise ("+" position) to increase pressure; turn it anticlockwise ("-" position) to
decrease pressure. The pressure value can be read on the pressure gauge (5).
d) Turn the selecting lever (12) to
delivery only (figure 4-d); to
WARNING
• With reference to the use and maintenance manual of the machine incorporating the control unit, carry
out a cleaning cycle after use, by letting clean water flow inside it. Never decommission the control unit
leaving pumped liquid inside.
• The control unit is sensitive to frost.
In cold climates, before decommissioning the control unit and in order to prevent ice from forming
inside, we recommend to pour a car anti-frost liquid inside it (in the suggested dilutions for the minimum
temperatures at which the control unit is required to work) and then empty it completely, for instance by
running the pump for some minutes without suctioning any liquid.
CAUTION
• The anti-frost liquid must be suitably disposed of and not wasted in the environment.
or
"ON"
"OFF" POSITION
.
CENTRALINA 4v/6v
or
"ON"
"OFF" POSITION
"BY-PASS" POSITION
"BY-PASS" POSITION
ALFA, ORION
, to set the pump pressure to zero and facilitate its priming
"S" POSITION
to feed both deliveries (figure 4-c); to
"A" POSITION
to feed the left delivery only (figure 4-e).
"LH"
DECOMMISSIONING
to feed or not the accessory (lance, herbicidal bar,
to feed or not, at the same time, all taps.
.
.
"C" POSITION
"ON"
and
"ON" POSITION
"ON"
to place the pump under
to feed the right
"RH"
GB
19

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