Piping Connections; Kinitial Start-Up - Graco 127642 Instructions Manual

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PIPING CONNECTIONS

EN
FOREWORD
NOTICE
PRELIMINARY
INSPECTION
NOTE
K INITIAL START-UP
FOREWORD
WARNING
NOTICE
NOTICE
NOTICE
NOTE
NOTICE
12
- Before carrying out any connection, refer to the visual indications
i.e. arrow on the pump head, to identify suction and delivery.
Wrong connection can cause serious pump damage.
- Before connection, make sure that the piping and the suction
tank are free of dirt and solid residue that could damage the
pump and its accessories.
- Before connecting the delivery pipe, partially fill the pump body,
from delivery side, with the liquid that needs to be pumped in
order to facilitate priming.
- Do not use conical threaded fittings, which could damage the
threaded inlet or outlet openings of the pump if excessively
tightened.
If not already fitted,
fit a suction filter
- Check that the quantity of fluid in the suction tank is
greater than the amount you wish to transfer.
- Make sure that the residual capacity of the delivery tank
is greater than the quantity you wish to transfer.
- Make sure that the piping and line accessories are in
good condition.
TOXIC FLUID OR FUME HAZARD
Prolonged contact with some fluids can damage the
skin. The use of goggles and gloves is recommended.
Do not run the pump dry for more than 20 minutes.
This can cause serious damage to its components.
Fluid leaks can damage objects and injure persons.
- Never start or stop the pump by connecting or cut-
ting out the power supply.
Extreme operating conditions with duty cycles longer
than 20 minutes can cause the motor temperature to
rise thus damaging the engine. For each duty cycle of
20 minutes, allow for a rest phase of 20 minutes with
motor switched off.
During the priming phase, the pump must discharge
all the air that is initially present from the delivery
line. Therefore it is necessary to keep the outlet open
to permit the evacuation of the air.
If an automatic type dispensing nozzle is installed
on the end of the delivery line, the evacuation of
the air will be difficult because of the automatic
stopping device that keeps the valve closed. It
is recommended that the automatic nozzle be
temporarily removed during initial start-up.
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