When checking for soft foot we normally loosen one foots foots anchor bolt at a time. ! four" foote# motor works like a chair that will wobble whereas a three"legge# stool has no rock or soft foot. $ence% some machine are three"foote#. n our mo#el; lets loosen anchor bolt '1 ( is there #eflection? )o* Mo+e to foot '3. ,eflection? -es* -es* )one at foot '2; . We We ha+e a relati+e sim/le correction /roblem. r is it? ur 3"4 0blue line #iagonal is the soft #iagonal. he 1"2 0green line is the har# #iagonal. ince '3 was soft% will '4 be eually as soft? Maybe if te5tbook /erfect. ur stan#ar# tolerance is 2 mils 06.6627. We We like 8ero will settle for 2 mils. 9ets 9ets say we ha# : mils soft foot at '3. ince bolts 1 & 2 were tight the unit wont res/on# in a linear fashion but some fraction thereof. With With bolts 1 & 2 remaining tight loosen '4 ( #i# the #ial in#icator show #eflection an# #i# '3 #ecrease in the amount of soft foot? -ou -ou may want to shim un#er both feet. Was Was '4 un#er 2 mils? f '4 was un#er 2 mils you can o/t to shim '3 only. only. f so% you can tighten 's 2 & 4 an# loosen '1. his gi+es the greatest amount of machine fle5ibility at foot '3 an# kee/s the machine basically at its /resent location 0your /articular machine may not allow this /ractice /ractice an# it may not be /ractical. 26 mils shimming to one foot #oesnt create a soft foot on an a#=acent foot.
