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7. SERVICING
WARNING -
Always disconnect power to the Variable Speed Pump at the circuit
breaker and disconnect the communication cable before servicing the pump. Failure
to do so could result in death or serious injury to service people, users or others due to
electric shock. Read all servicing instructions before working on the pump.
WARNING -
DO NOT
open the strainer pot if pump fails to prime or if pump has been
operating without water in the strainer pot. Pumps operated
in these circumstances may experience a build up of vapor pressure and may contain
scalding hot water. Opening the pump may cause serious personal injury. In order to
avoid the possibility of personal injury, make sure the suction and discharge valves are
open and strainer pot temperature is cool to touch, then open with extreme caution.
CAUTION -
Be sure not to scratch or mar the polished shaft seal faces; seal will leak
if faces are damaged. The polished and lapped faces of the seal could be damaged if
not handled with care.
Protect from heat
1. Shade the motor from the sun.
2. Any enclosure must be well ventilated to prevent overheating. 3. Provide ample cross
ventilation.
Protect against dirt
1. Protect from any foreign matter.
2. Do not store (or spill) chemicals on or near the motor.
3. Avoid sweeping or stirring up dust near the motor while it is operating.
4. If a motor has been damaged by dirt it may void the motor warranty.
5. Clean the lid and clamp, O-ring, and sealing surface of the pump pot.
Protect against moisture
1. Protect from splashing or sprayed water.
2. Protect from extreme weather such as flooding.
3. If motor internals have become wet - let them dry before operating. Do not allow the
pump to operate if it has been flooded.
4. If a motor has been damaged by water it may void the motor warranty.
7.1
Electric Motor Care
CAUTION - DO NOT run the pump dry.
If the pump is run dry, the mechanical seal will
be damaged and the pump will start leaking. If this occurs, the damaged seal must be replaced.
ALWAYS maintain proper water level. If the water level falls below the suction port, the pump will
draw air through the suction port, losing the prime and causing the pump to run dry, resulting in a
damaged seal. Continued operation in this manner could
cause a loss of pressure, resulting in damage to the pump case, impeller and seal and may cause
property damage and personal injury.