TM 10-4320-307-243-7FLEXIBLE COUPLING INSPECT/ALGN/REPAIR/REPLACE(CONT).b.Record these axial readings (R1 through R4) onAlignment Record Sheet. The difference betweennominal (200 mm) coupling dimension andaverage axial reading Ra is then A, the axialmisalignment error.NOTEThe maximum difference betweenopposite readings taken above (R1 -R3 or R2-R4) corresponds to the Xvalue and represents the angularmisalignment.NOTESee calculation method in AlignmentRecord Sheet, Angular Reading3-14
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