Explosion-proof electrical maintenance personnel work attention
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1. Explosion-proof electrical equipment must not be disassembled; the explosion-proof surface of the part cannot be used as the fulcrum of the crowbar, and it is not allowed to knock or hit the explosion-proof surface.
2. When disassembling the motor, remove the windshield and fan first, and then use the casing wrench to remove the bolts of the end cap and the bearing cover. Then, use a round wood or copper rod to strike the shaft in the axial direction to separate the end cover from the machine base. Finally remove the rotor. Remove the parts, the explosion-proof surface should be placed upside down, and covered with rubber or cloth pads, fastening bolts, spring pads and other care not to be lost.
3. When impregnating and assembling, the insulating paint or dirt attached to the explosion-proof surface shall be cleaned, and no hard objects such as iron pieces may be used for scratching, but the oil stone may be used to grind uneven places.
4, if the explosion-proof electrical surface damage, you must use lead-tin solder HISnPb58-2, flux is 30% concentration of hydrochloric acid (for steel parts) or tin containing 58 to 60% of tin-zinc solder, flux 30% ammonium chloride, Zinc chloride 70%, add water 100 ~ 150% of the mixed solution (for cast iron parts) welding, solder and parts of the bond should be solid, convex parts to be polished to achieve the required finish.
5. To prevent the explosion-proof surface from rusting, apply anti-explosion surface oil or 204-1 displacement rust preventive oil.