BJM Pumps PGV220-575T - Manual (Page 11)

11
PUMP OPERATION
Never get near or touch the suction port and discharge ports
during operation. Failure to observe this warning may cause injury by being
caught in a rotating part such as impeller. Do not put fingers in strainer or pump
intake.
• Never operate the pump under minimum water levels during continuous
operation
• When changes in current and pressure occur during operation, check for
abnormalities such as overload due to entrance of foreign matter.
• Immediately stop operation upon detection of any malfunction. Failure to
observe this caution may cause electric shock, injury or fire.
• Make sure to turn OFF the power source at power failure. Failure to
observe this caution may cause injury.
• Make sure to maintain the specified liquid temperature. For high-
temperature liquid specification, refer to the catalogue. Failure to observe
this caution may cause injury.
• For pumps with cutting mechanism, never rotate in reverse. Failure to
observe this caution may cause burn-out of motor and injury.
This pump is designed to handle dirty water that contains some
solids. It is not designed to pump volatile or flammable liquids. Do not attempt to pump
any liquids which may damage the pump or endanger personnel as a result of pump
failure.
Do not operate this pump where explosive vapors or
flammable material exist. Death or Serious injury will result.
1. Change of running condition depending on water level. If the suction water level
comes down near “LEVEL 1”, air will be suctioned with generated vortex and
consequently the pump is put in water-roaring run condition, which continues until
the water level reaches next “LEVEL 2”. (Refer to Fig. 2)