Macnaught FTWM120-001, Инструкция по эксплуатации

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Extreme operating conditions can raise the motor temperature and, consequently, cause
the thermal protection switch to stop it.
Turn off the pump and wait for it to cool before resuming use.
The thermal protection automatically turns off when the motor is sufficiently cool.
In the priming phase the pump must blow the air initially present in the entire installation out of
the delivery line.
Therefore it is necessary to keep the outlet open to permit the evacuation of the air.
If an automatic type dispensing nozzle is installed at the end of the delivery line, the
evacuation of the air will be difficult because of the automatic stopping device that
keeps the valve closed when the line pressure is too low. It is recommended that the
automatic dispensing nozzle be temporarily disconnected during the initial start-up
phase.
The priming phase can last from several seconds to a few minutes, as a function of the
characteristics of the system. If this phase is prolonged, stop the pump and verify:
• That the pump is not running completely dry;
• That the suction tubing is not allowing air to seep in;
• That the suction filter is not clogged;
• That the suction height does not exceed 2m. (if the height exceeds 2m, fill the suction hose
with fluid);
• That the delivery tube is allowing the evacuation of the air.
When priming has occurred, verify that the pump is operating within the anticipated range, in
particular:
• That under conditions of maximum back pressure, the power absorption of the motor stays
within the values shown on the identification plate;
• That the suction pressure is not greater that 0.5 bar;
• That the back pressure in the delivery line is not greater than the maximum back pressure
foreseen for the pump.
DAILY USE
1. If using flexible tubing, attach the ends of the tubing to the tanks. In the absence of an
appropriate slot, solidly grasp the delivery tube before beginning dispensing.
2. Before starting the pump, make sure that the delivery valve is closed (dispensing nozzle or
line valve).
3. Turn the ON/OFF switch to ON. The by-pass valve allows functioning with the delivery
closed only for brief periods.
4. Open the delivery valve, solidly grasping the end of the tubing.
5. Close the delivery valve to stop dispensing.
6. When dispensing is finished, turn off the pump.
Function with the delivery closed is only allowed for brief periods (2-3 minutes
maximum).
After use, make sure the pump is turned off.
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