4. Operation
IOM manual
–
SPT series
19
4.3.
Trial operation
WARNING:
➢
Make sure that the unit cannot roll or fall over and injure people or damage property.
➢
In some installations, the pump and the surrounding liquid may be hot. Bear in mind
the risk of burn injuries.
➢
Never start the pump while it is suspended, as the pump may jerk and cause serious
accident.
➢
Make sure nobody is close to the unit when it is started. The unit will jerk in the opposite
direction of the impeller rotation.
NOTICE:
➢
Inspect the pump. Check that there is no physical damage to the pump or cables.
➢
Check the oil level in the oil housing (see chapter
5.4. Oil inspection and change
).
➢
Remove the fuses or open the circuit breaker, and check that the impeller can be
rotated freely.
➢
Check that the monitoring equipment (if any) works properly.
1. Direct the float switch downward.
2. Rise the float switch (it will start the pump).
3. Return the float to the resting position (it will
stop the pump).
4. Perform steps (2) and (3) three times to verify
proper operation.
5. Operate the pump for a short time (
≤
1 minute) and perform the following checks:
➢
Operating current: use an AC amp meter (clamp), measure the current at the phase
that is connected to the terminal board.
➢
Operation voltage: use an AC voltmeter (tester) to measure the voltage at the terminal
board.
➢
Power supply voltage tolerance:
within ±10% of the rated voltage
(see chapter
1.2.
Pump design
)
➢
Vibrations
CAUTION:
If the pump generates a considerable amount of vibration, noise, or smell, disconnect the power
supply immediately and contact Tapflo for further support.
6. Continue operations if no abnormal conditions are found during the trial operation.
