~ 4 ~
5.2 Resulting in electrical hazard
warning mark has been marked
outside the connecting box. Be
careful.
5.3 Electrical specications (voltage, hertz)
are shown on the pump nameplate.
Verify that the power supply voltage
and hertz match pump requirement.
An external ON/OFF switch must be
installed.
5.4 The electrical connection should be
carried out in accordance with local
regulations. The operating voltage
and frequency are marked on the
nameplate. Please make sure that these
data match with your job requirement.
For your safety, be sure the Residual
current device (RCD, 30mA) is in your
system and grounding is properly
connected to prevent from electric
shock.
5.5 Motors must be connected to a motor-
protective circuit breaker which can
be manually reset. Set the motor-
protective circuit breaker according
to the rated current of the motor. See
nameplate.
5.6 Three phase motor must check
rotatingdirection. The rotating
direction indicated on the fan cover,
is counterclockwise viewing from fan
cover end. Interchanging any two leads
with power off can reverse the pump
rotation.
5.7 The position of the motor connecting
boxis adjustable. Referring to Fig.3, the
adjustment can be done by removing
the motor fan cover, unscrewing the
frame bolts, turning the motor casing
and connecting box subassembly
together to proper position. Finally,
screw the frame bolts tight, and put
the fan cover back.
6. Start-Up
Before start the pump, re-verify the following
items.
6.1 Verify if three phase pump rotation
iscorrect. The rotating direction should
be counterclockwise viewing from fan
cover end.
6.2 Piping and joints should be fitted
carefullyto prevent leak. Leak in the
piping will cause the pump hydraulic
lost.
6.3 The pump has been lled with liquid.
6.4 The suction filter is not blocked by any
foreign objects.
7. Operation and Maintenance
The pump can not be operated
under the fully closed of discharge
outlet continuously, because it
will raise the liquid temperature
abnormally, and damage the
pump after 5 minutes.
7.1 Lubrication
The mechanical seal and shaft sleeves
inside the pump are lubricated by
working liquid.
7.2 Suction Filter
Suction lter should be always kept clean
to make sure no any foreign objects
block the filter in order to have best
performance.
7.3 Periodic Examination
The following check items should be
carried out periodically to ensure the
normal operation.
7.3.1 Check the discharge and output
pressure of working liquid.
7.3.2 Check the leak of piping and joints.
7.3.3
Examine the motor starter/container.
7.3.4 Test all the pump control function.
7.4 The pump can not be used to
transferexplosive liquids. Extra
protective device is required if the
working liquid temperature exceeds
60°C to avoid scald hazard.
90
0180
270
o
oo
o
Fig.3
