Switching Off - Comet GXD Series Use And Maintenance Manual

adjustment valve.
• Operating pressure must never exceed the maximum amount specified for the pump (also refer to
the "FEATURES AND TECHNICAL SPECIFICATIONS" section).
Before proceeding with the steps below, read the operating and maintenance instructions for the
machine that incorporates the pump.
a) Open the mains water supply tap.
b) Set the delivery pressure to zero by keeping the delivery circuit open (for a high pressure cleaner,
for example, by keeping the lever on the cleaner gun pressed) and wait for a continuous jet of
water to exit.
c) Start up the pump.
WARNING
• To allow the pump to prime quickly, follow the instructions at point (a) and (b) every time the
pump is drained of liquid.
4.3 OPERATION WITH DETERGENTS
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CAUTION
- Only use the detergents recommended by the Manufacturer of the machine that incorporates the
pump. Never suck up liquids containing solvents, petrol, diluents, acetone and fuel oil, as these
products become highly inflammable, explosive and toxic when nebulized.
- Read the instructions and warnings on the label of the detergent to be distributed by the pump
to ensure appropriate action is taken to prevent hazardous situations for the operator or the
environment.
- Store detergents in a safe place out of children's reach.
- Should detergent come into contact with your eyes, wash immediately with water. Contact a
doctor without delay and remember to take the container of detergent with you.
- If detergent is swallowed, do not provoke vomiting. Contact a doctor without delay and remember
to take the container of detergent with you.
For information on how to use the detergent, refer to the instructions on the label on the container of
detergent particularly as regards the amount to use.
Before proceeding with the steps below, read the operating and maintenance instructions for the
machine that incorporates the pump.
a) Keep the pressure of the pump to below 30 bar/435 psi (with a high pressure cleaner, for example,
this is achieved by operating at low pressure with a lance fitted with an appropriate nozzle holder
head).
WARNING
• We recommend cleaning the pipes by taking up water for a couple of seconds after using
detergents in order to prevent the formation of chemical deposits.

5. SWITCHING OFF

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CAUTION
• Follow the instructions for switching off recommended by the Manufacturer of the machine that
incorporates the pump.
There must not be any moving parts on the pump and no pressurised fluid in any of the
hoses.
a) Switch the pump off and close the water supply.
b) Set the delivery pressure to zero as described at point (b) in the "STANDARD OPERATION
(HIGH PRESSURE)" section.
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