There are two types of electric arc furnaces, acid or basic, which refer to the type of slag present in the furnace. Both types are lined with a combination of brick and refractory. Practically every advance in foundry melt shop practices has put greater demands on the brick and refractory used. Higher operating temperatures and other desirable conditions, which are increasingly destructive to refractory materials, robi are called for by the plant operators. Over the past ten to fifteen years, a lot of expertise in the iron and steel foundry has been lost. Therefore, it would serve the industry well if some fundamentals of brick and refractory applications are reviewed here.

CAUTION: Cover up the drive belts and pulleys using a clean shop cloth before sanding or filing to prevent metal filings from falling onto them.If no pressure marks or traces of rubbing are found on the hose as described, check the gap at the closest point (A) between the cast boss of the oil filter housing and the upper coolant hose.There must be a gap (A) of at least 1/4 inch (7 mm) when the engine coolant chop is cold.If gap (A) is 1/4 inch (7 mm) or greater, no further repairs are necessary.If gap (A) is less than 1/4 inch (7 mm), the upper coolant hose must be replaced with the new modified version.Parts InformationUpper Coolant Hose BMW saw Part Number 11 531 433 340We replaced the upper radiator hose with the new type, parts cleaned the engine compartment, filled the cooling system and pressure tested it to make sure there were no other leaks. Luckily, the engine hadn''t overheated. Most of the steam was created from the coolant leaking robi on the exhaust manifold. The owner was fairly good-natured about his near catastrophe. Relieved, standing at the counter while paying his bill, he said lightheartedly, "You know, my pants and shirt were badly wrinkled when I left the house this morning. I think this was the strangest way I''ve ever had my clothes pressed." I had to agree. ills

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