Clarke PSD1A, Operating & Maintenance Instructions

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9
USING THE PUMP
1. Plug in the pump and switch on the power supply,
• The pump will only run where there is sufficient water for the float switch to
rise and activate the pump.
2. If required, the range of operation of the float switch can be manually
adjusted by positioning the float switch cable within the retaining clip at
the top of the pump. The switch will operate through its full range if left
hanging free.
3. Run the pump continuously or remove from the water and store in a frost
free location if the water is likely to freeze,
4. Never run the pump dry. Ensure the pump switches off when water has
stopped flowing.
• The pump should be able to clear water down to a residual depth of
approx 5mm, provided the float switch has been raised to keep the pump
running. In this situation, air and residual water may be seen escaping
from the vent valve.
5. Disconnect from the power supply when the water has been pumped
out. Avoid running the pump continuously if the discharge hose has
become obstructed and water is not flowing.
AUTOMATIC THERMAL OVERLOAD
These pumps are fitted with automatic thermal overload protection. If the
pump overheats due to an obstruction in the pump, or pumping warm water
for example, it will shut off automatically.
Switch the pump OFF at the mains supply. Check for blockages and allow the
motor to cool (at least 5 minutes) before attempting to restart, by which time
the cut-out will have reset.