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A method to prevent brinelling wear of a slot and pin assembly of an adjustable inlet guide vane mechanism includes: providing a compressor having the adjustable inlet guide vane mechanism including a control ring with a plurality of tapered slots positioned around a circumference of the control rin

A method to prevent brinelling wear of a slot and pin assembly of an adjustable inlet guide vane mechanism includes: providing a compressor having the adjustable inlet guide vane mechanism including a control ring with a plurality of tapered slots positioned around a circumference of the control ring; providing a plurality of tapered pin/lever arm assemblies each comprising a tapered pin having a tapered body with a first end and a second end; positioning the tapered pin of the tapered pin/lever arm assembly within each of the plurality of tapered slots; positioning a spring over the first end of each of the tapered pins; and securing the tapered pin of each of the tapered pin/lever arm assemblies within each of the tapered slots by coupling a fastening member to the first end of each of the tapered pins.

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The invention claimed is: 1. A method to prevent brinelling wear of a slot and pin assembly of an adjustable inlet guide vane mechanism of a compressor, the method comprising the steps of:providing the compressor having the adjustable inlet guide vane mechanism including a control ring with a plural

The invention claimed is: 1. A method to prevent brinelling wear of a slot and pin assembly of an adjustable inlet guide vane mechanism of a compressor, the method comprising the steps of:providing the compressor having the adjustable inlet guide vane mechanism including a control ring with a plurality of tapered slots positioned around a circumference of the control ring;providing a plurality of tapered pin/lever arm assemblies each comprising a tapered pin having a tapered body with a first end and a second end, a lever arm extending perpendicularly from the second end of the tapered body of the tapered pin and a vane coupled to an end of the lever arm;positioning the tapered pin of the tapered pin/lever arm assembly within each of the plurality of tapered slots such that the first end of the tapered body of the tapered pin extends through the tapered slot;positioning a spring over the first end of the tapered pin of each of the tapered pin/lever arm assemblies; andsecuring the tapered pin of each of the tapered pin/lever arm assemblies within each of the tapered slots by coupling a fastening member to the first end of the tapered pin of each of the tapered pin/lever arm assemblies,wherein the tapered body of the tapered pin of each of the tapered pin/lever arm assemblies and each of the plurality of tapered slots are shaped to ensure contact between the tapered body of the tapered pin and the tapered slot thereby preventing brinelling wear, andthe spring adjusts to compensate for wearing due to normal operation in each of the tapered slots.