Northern Industrial Tools 1/2 HP SUMP PUMP owner manual Maintenance & Troubleshooting, Grounding

Instructions for a safe pump start

1. The power cable should have a minimum section equivalent to that of H05 RN-F or H07 RN-F. To be able to use the pump outdoors, it is necessary to use cable with a length of 32 4/5 feet. The plug and connections should be protected by water splashes.

2. Before using the pump, always inspect it visually (especially the power cord and plug). Do not use the pump if it is damaged.

3. Make sure that electric connections are protected from rain, moisture and wet areas.

4. Protect the plug and the power cord from heat, oil or sharp edges. If damaged, the power cord must be replaced by qualified personnel only.

Grounding

The plug of the power cable has a double grounding contact so that grounding can be perfomed by simply inserting the plug .

Overload protection

This unit has a built-in thermal protection switch. The pump stops if an overload condition occurs. The motor restarts automatically after it has cooled down (see Pint 4 of the Troubleshooting section for information on causes and corrective actions).

To start the pump, insert plug into a 120V socket.

ATTENTION: The pump runs as soon as the float switch reaches the start-up level. WARNING: This pump is not designed to be used in swimming pools where there is a

chance for people to come into contact with the water.

MAINTENANCE & TROUBLESHOOTING

In ordinary conditions, this pump does not require any maintenance.

It may be necessary, however, to clean the hydraulics or replace the impeller. WARNING: Make sure the pump is disconnected from electric power supply before

performing any maintenance operation.

• Maintain your pump. It is recommended that the general condition of any pump be examined before it is used. Keep your pump in good repair by adopting a program of conscientious repair and maintenance in accordance with the recommended procedures found in this manual. If any abnormal vibrations or noise occurs, turn the pump off immediately and have the problem corrected before further use. Have necessary repairs made by qualified service personnel.

• The pump of this series is not suitable for table fountains or aquariums. In this cases, it is necessary to use a H07 RN-F cable. If these pumps are used in continuous mode for ponds with fish, it is necessary to check them at regular intervals of 6 months (if the water contains aggressive substances).

• It is also advisable to check the maximum dimension off particles recommended for the pump and take the necessary measures to prevent the fish from being sucked into the pump.

• Store the pump in a dry place and protect it from frost.

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