Dover PSG Mouvex AZ O Installatie, bediening en onderhoud - Pagina 7
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3.1 Storage
In the case of prolonged shutdown or storage, we
recommend dismantling the pump and greasing it tho-
roughly. If it cannot be dismantled, it should be filled with
oil via its orifices (inlet and outlet) and rotated slowly by
hand to allow the oil to penetrate. The flange seal surfa-
ces should be thoroughly greased to protect them
against atmospheric oxidation.
3.2 Pumping hot products
CAUTION
Excessive temperature-
can cause injury
or severe damage.
When pumping products at high temperatures, take care
when starting the pump for the fist time, tighten the bolts
to compensate for expansion effects.
3.3 Pump filled with product at shutdown
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
In the case where the pumping circuit is situated bet-
ween isolating valves and/or has a check valve, you
must bear in mind the variations in temperature that can
occur, leading in particular to the expansion of the pro-
duct in the circuit. In this case, provide a means of relea-
sing the expansion volume.
The use of a relief valve can suffice for this function. The
opening pressure of this valve must be compatible with
the pressure allowed by the parts composing the circuit.
With products including particles that settle at shutdown,
it is necessary to ensure that the consistency of the
deposited products will not affect the start-up of the
pump.
NT 1003-A00 09 18 AZ O e
THE SURFACES OF THE PUMP CAN
BE AT A TEMPERATURE LIABLE TO
CAUSE INJURY OR SEVERE DAMAGE.
FAILURE TO INSTALL ADEQUATELY
SIZED PRESSURE RELIEF VALVE(S)
CAN CAUSE PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH.
3. USE
3.4 Starting-up the pump
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
WARNING
Do not operate
without guard
in place.
Before starting up the pump, always ensure that the
pumping conditions are correct, with the corresponding
valves open, especially the inlet valve. For products
requiring heating, they must be brought to their pumping
temperature before starting the pump.
3.5 Shutting down the pump
When shutting down the pump, we recommend waiting
for the pump to stop completely before closing the val-
ves, especially the inlet valve.
3.6 Restarting
Follow the standard start-up procedure for the pump/
motor-driven pump, as well as the instructions below.
Turn the pump by hand to make sure the parts move
freely.
Replace the grease used to lubricate the bearing.
If the pump has a safety bypass, remove it and inspect
the parts and make sure they move freely (see §
BYPASS for removal instructions).
7/19
FAILURE
TO
RELIEVE
SYSTEM
PRESSURE PRIOR TO PERFORMING
PUMP SERVICE OR MAINTENANCE
CAN CAUSE PERSONAL INJURY OR
PROPERTY DAMAGE.
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPER-
TY DAMAGE OR DEATH.