Dover PSG Mouvex AZ O Pengoperasian & Pemeliharaan Instalasi - Halaman 5
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2.5 Bypass
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
The bypass protects only the pump in only one direction, but
it is reversible. Cap A must be on the intake side. This must
be done before the pump is started for the first time and reva-
lidated if the pumping circuit changes.
A
WARNING
Hazardous or toxic
fluids can cause
serious injury.
Once the pump is drained, the single bypass can easily
be changed to the correct direction by dismantling the
screws of the fastening pins and by turning the bypass
180° : before locking it in its new position, make sure
that you carefully install the seals beneath it.
2.6 Cleaning
Since the pumps are delivered well greased, they must be
cleaned before starting them up (especially when trans-
ferring food products, for example).
Cleaning can be done either by circulating an appropriate
liquid, or by removing the front cover of the pump and
carefully cleaning the internal parts. (cf. § OPENING THE
PUMP).
NT 1003-A00 09 18 AZ O e
2. INSTALLATION (continued)
FAILURE TO RELIEVE THE SYSTEM
PRESSURE PRIOR TO PERFORMING
ANY WORK ON THE PUMP OR THE
INSTALLATION CAN CAUSE PERSONAL
INJURY OR PROPERTY DAMAGE.
IF PUMPING HAZARDOUS OR TOXIC
FLUIDS, THE SYSTEM MUST BE FLUS-
HED PRIOR TO PERFORMING ANY
SERVICE OPERATION.
2.7 Anchoring the pump units
The correct seating of the pump unit is vital for its effi-
cient operation and its longevity.
The surface must be resistant enough to absorb the
stresses due to the pump unit without deformation.
In the case where the unit is fastened by anchor lugs or
bolts, it must be carefully wedged to prevent any defor-
mation of the chassis when tightening the bolts.
Deformation of the chassis will cause stress prejudicial
to the pump and the drive device and put the coupling
out of true, thereby causing vibrations, noise and prema-
ture wear. Care must be taken so that the chassis is
clear of the ground, apart from the base plates.
The chassis is equipped with a ground connection that
must be used.
We recommend leaving an unoccupied space of about
20 cm, on either end of the chassis, to permit access to
the bolts fastening the pump, reduction gear and motor
together.
2.8 Alignment of motor / pump and reduction
gearbox / pump shafts
WARNING
Do not operate
without guard
in place.
WARNING
Dangerous voltage.
Can cause
injury and death.
The motor and pump shafts are perfectly aligned in the
factory before shipment, but they must be checked and
realigned after installation if necessary.
To check the alignment and coupling, use a set square
to control the axial misalignment, and feeler gauges for
angular misalignment.
For this, see pump unit Instructions.
5/19
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPER-
TY DAMAGE OR DEATH.
DISCONNECT THE ELECTRICITY
SUPPLY BEFORE ANY MAINTENAN-
CE OPERATION.