TM  10-3930-653-14&P (4) Check output shaft splines for wear or damage. If any defect is found, replace shaft. Unit: mm(in) Checking Item   Standard Value Service Limit Clearance between output 0.008-0.076 shaft and output gear (0.0003-0.003) spines in rotational direction. Fig. 4-313. (5) Using a suitable dial gauge, check output shaft for deflection. If excessively deflected, shaft should be replaced. Note :   Set a suitable dial gauge at midway of shaft and read gauge, rotating shaft slowly. Unit: mm(in) Checking Item   Standard Value Service Limit Below 0.05 Over 0.05 Output shaft deflection (0.002) (0.002) (6) Check idle gear shaft splines for wear or damage. If unsatisfactory, replace shaft. Unit: mm(in) Checking Item   Standard Value Service Limit Clearance between idle gear   0.1-0.2 shaft and reverse idle gear     (0.004-0.008) -- splines in rotational direction Fig. 4-314. Checking Output Shaft Deflection Fig. 4-315. 4-169