While checking for Soft Foot with either dial indicators or a laser, use a set of feeler gages to measure the gap under each corner of every foot. This simple and quick step will identify if standard "flat" shims will fix the soft foot, or tell you if you are dealing with an "angular" gap. Thus avoiding a long battle of haplessly "chasing your tail" trying to correct for something that normal shimming cannot.
Reader tip provided by Jason Steed, Field Sales Manager, Precision Brand Products, Downers Grove, Illinois
Thanks Jason - we have made a $10 donation to the Harry Chapin Food Bank per your request.
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This graphic is supplied by Jon McFadden. See comments below for explanation.