Question about Craftsman Air Tools & Compressors

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I have an older model Sears Craftsman air compressor, 1 hp, 100 psi, twin cylinder. Model 106.154541. The compressor comes on fine, but when the pressure gets to 40 psi or so the belt starts to squeal, then the squealing gets louder until it is constant, and becomes intolerable long before hitting 100 psi. Then the pump wheel stops. What's going on here?

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Could be the bearing in the pully wheel rides on,,not the belt,,,While its running spray some belt dressing on belt to see if its the belt,,,while running get a can of wd-40 with long nosel attachment and spray the armeture that tures pully when you spray it if its the bearing it will stop makeing noise momentarly, than come back again than as you spray it it will stop as long as you spray. BE CAREFUL. Bearings wear out when old,,,like us!

Posted on Mar 11, 2011

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Posted on Jan 02, 2017

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http://www.searspartsdirect.com/partsdirect/getSubComp.pd?modelNumber=106.154880&productCategoryId=0703000&brandId=0247&modelName=CRAFTSMAN-TWIN-CYLINDER-TANK-TYPE-PAINT-SPRAYER&diagramPageId=00001&documentId=00001361&pop=flush

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