The maintenance of equipment is a very important activity because it can slow down the damage, maintain the functionality \/ usability furnace, durability, and safety.<\/span> Therefore, periodic and scheduled maintenance activities must be carried out.<\/span> Maintenance of equipment aimed at: \uf0b7<\/span><\/p>\n Programmed maintenance will greatly facilitate control over the readiness of equipment to be used.<\/span> To that end, we encourage all equipment, especially equipment powered by electricity must be equipped with a user card, care card \/ maintenance, and repair card.<\/span> Similarly, the electric furnace.<\/span> Electric furnace maintenance require precision and accuracy because it will determine the final result of combustion.<\/span><\/p>\n 1 Tool<\/strong><\/span> 2 Materials<\/strong><\/span> 3 Electric Furnace Maintenance Procedures<\/strong><\/span> – Connecting the electrical flow in the furnace to turn on the switch.<\/span> – Rotate the switch in position ohms.<\/span> h) The coils are loose and out of place put back by turning on the furnace so that the coil a little hot, then using two sticks of dry wood, push the coil in place.<\/span> This must be done carefully because of the nature of the coil is easily broken.<\/span>\n
\n 1) Vacuum Cleaner<\/span>
\n 2) Brush<\/span>
\n 3) Multi Tester<\/span>
\n 4) Brush Wire<\/span><\/p>\n
\n a) Styrofoam<\/span>
\n b) Paint heat resistant and rustproof<\/span><\/p>\n
\n a) In the combustion process, at the stage preheating furnace door should not be closed tightly (opened slightly) and ventilation holes and the hole reconnaissance (spy hole) left open to a temperature of 600 o<\/sup> C.<\/span> This meant that the water vapor from the ceramic body or glaze can be out so as not to create rust or porous metal furnace construction.<\/span>
\n b) Cleaning the inside of the furnace from dust or dirt fine shards of ceramic objects using a vacuum cleaner.<\/span>
\n c) Patching wall, pedestal, and the roof is cracked or eroded by the refractory cement by way of wetting the cracks with water in the brush before filling done.<\/span>
\n d) replace the refractory bricks soon broken by an adhesive refractory cement.<\/span>
\n e) Avoid materials that easily produce smoke in the combustion process.<\/span>
\n f) Avoiding the use of an electric furnace for the combustion process of reduction.<\/span>
\n g) Checking electric furnace coil as follows: \uf0a7<\/span><\/p>\n\n
\n – Attaching styrofoam on the coils.<\/span> If the coil is functioning then stryrofoam will melt because of the heat, otherwise if stryrofoam not melt, it means the coil is broken or there is no power.<\/span> \uf0a7<\/span><\/p>\n\n
\n – Connecting the two cables multitester at each end portion of the coil.<\/span> When the multimeter needle moves to the right, then the coil to function, but when the needle multimeter does not move, then the coil broke.<\/span> Preferably a coil that has broken off immediately repaired or replaced with new ones.<\/span><\/p>\n
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<\/a>
\n Figure 43. How to fix a loose coil.<\/span><\/p>\n