Maintenance of gear oil pump after use:
　　 1, the gear oil pump is often fatliquoring , the electric oil drum pump is running at high speed , the grease is easy to volatilize , so the lubrication at the bearing must be kept clean , and pay attention to the replacement .
　　 2, gear oil pump often check and repair , electric oil drum pump should be checked frequently , repair , must check the power cord : internal wiring , plug , switch is good , insulation resistance is normal , brush tail seat is loose , commutator and brush good contact, the armature stator winding wound expansion stage if there is moderate or open circuit, bearings and rotating parts, etc. whether damage.
　　 3, each of the gear pumps keep the same parts and replacement parts, in dismantling the gear pump, can be kept in each part, paying particular attention to the part of the surface explosion proof that it can not damage the nap includes an insulating spacer and casing and, if damaged, must be replaced on the same new parts, raw materials shall not be less than the part-performance alternative materials or inconsistent with the original specification, should assemble all the parts installed according to the original location, you can not be missed. Note that save electric pump It should be placed in a dry, clean environment and corrosive gases. Note that the insulation resistance of the gear pump, using electric or long resting in a wet environment without pumping pump, windings must be measured prior to use 500 volt insulation megger Resistance . If the insulation resistance between the winding and the motor casing is less than 7 megohms , the winding must be dried .