1, New or long-term unused electric pump, measure the insulation resistance between all live parts and the metal parts that may be touched with a 500-volt megohmmeter after unpacking, and should not be lower than 7 megohms when approaching the working temperature.
2, before use, to check the terminals are solid, the ground wire must be reliable and solid.
3, check the power supply voltage is consistent with the rated voltage, can not exceed or lower than the rated voltage of 10% of the power used.
4, the use of the pump, do not damage the wires, to avoid water, oil into the motor, switches, electrical parts.
5, Prohibit the work under the conditions of containing flammable and corrosive gases to ensure safe production and the normal work of the electrical original.
6, if found in the use of abnormal noise, should immediately shut down, check the reason, until you try to exclude the rear can continue to use.
7, the pump should not be empty run, use the pump immediately stop pumping immediately, because the pump motor no-load speed of up to 10000 rev / split, otherwise it will be worn, universal joint impeller, serious damage to the pump tube.
8, replace the brush: brush wear can not be used immediately replaced, otherwise it will damage the commutator, a serious burn out the motor.
9, electric pump should be regularly checked, not as at least three months to check once-often used should be monthly maintenance, maintenance should be all open, eliminating internal dust, oil. If the commutator too much carbon can be used alcohol scrub commutator surface. If damaged parts should be replaced by the same parts.
10, when not in use, please be placed in a dry, clean environment without corrosive gases.
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