Dover Ebsray R75 Manuale di istruzioni per l'installazione, il funzionamento e la manutenzione - Pagina 5
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Operation without guards in place can
cause serious personal injury, major
property damage, or death.
Do not operate
without guard
in place
Failure to relieve system pressure prior
to performing pump service can cause
serious personal injury or property
damage. Systems with meters will still
be pressurized even after the hose is
Hazardous pressure
emptied
can cause serious
personal injury or
property damage
4.1
PRE-STARTUP CHECKLIST
Check the alignment of the pipes to the pump. Pipes
a)
must be supported so that they do not spring away or
drop down when the pump flanges or union joints are
disconnected.
b)
Install pressure gauges in the 1/4" NPT ports located
on the pump casing. These can be used to check the
actual inlet and discharge conditions after pump start-
up.
c)
Inspect complete piping system to ensure that no
piping loads are being placed on the pump.
d)
Secure appropriate hose connections. Check entire
piping system not leaking.
e)
Check shaft rotation and freedom of shaft rotation.
f)
Open inlet and discharge valves.
4.2
COMMISSIONING/STARTUP PROCEDURE
1.
Open the shut-off valve in the bypass return line.
2.
Open the tank outlet valve (same as pump inlet valve).
3.
Start the pump. Confirm proper pump rotation by
checking the pump rotation arrow on the cover.
4.
Check the pump speed. Pump speed must never
exceed the recommended maximum. Refer to SECTION
2.2 of this manual.
5.
Check the pressure gauges to ensure the system is
operating within expected parameters. Record the
gauge readings in SECTION 2.3 of this manual for future
reference.
6.
Inspect piping, fittings, and associated system
equipment for leaks, noise, vibration and overheating.
7.
Close the discharge valve and check the differential
pressure. It must not exceed the pressure setting of the
external bypass valve.
SECTION 4 - OPERATION
Hazardous pressure
can cause serious
personal injury or
property damage
Hazardous pressure
can cause personal
injury or property
damage
start up are experienced and troubleshooting is required.
4.3
Periodic inspection of the Pump, Pump System and Ancillary
Equipment is required to maintain safety, conformity,
operational functionality and reliability.
If any abnormal condition is discovered, cease operation of
pump immediately and take action to rectify the problem.
For safe operation, the following items should be included in the
routine periodic inspection:
5
Disconnecting fluid or pressure
containment components during pump
operation can cause serious personal
injury or property damage.
Pumps operating against a closed valve
can cause system failure, personal
injury and property damage
Inspect pump frequently during the first few hours of operation
for such conditions as excessive heating of ball bearings,
vibration or unusual noises.
NOTE:
Consult SECTION 7 of this manual if difficulties during
PERIODIC INSPECTION
1.
Inspect the system for leaks, vibration, abnormal noises,
and signs of overheating or discolouration.
2.
Inspect coupling assembly for signs of wear, overheating
or discolouration
3.
Check Pump differential pressure
4.
Check Motor Current.
5.
Inspect motor for vibration, abnormal noises, and signs of
overheating or discolouration.
Publication No.: 2750-17