TM 10-3930-653-14&P CLUTCH GROUP INSPECTION (1)   Inspect composite disks for thickness and flatness, and for deformation, damage, or wear. If unsatisfactory, replace with new ones. Note 1 : When checking for flatness, put composite disk on a surface table and measure the clearance between clutch disk and surface table. Note 2 : When checking for thickness, measure at inner, middle and outer sections of composite disk mating with steel disk. Unit: mm(in) Checking Item   Standard Value Service Limit 25-2.7 2.1 Composite disk thickness2  5-2.7 2 1 (0.0984-0 106) (0.083) Flatness and parallelism    Below Over 0.05 of clutch disk   0.05 (0.002) (0.002) Fig.4-282. (2)  Install composite disk onto drive gear, and check for clearance in rotational direction at splines. If unsatisfactory, replace. Unit: mm(in) Checking Item   Standard Value Service Limit Clearance between drive gear 0.09-0.25 and clutch disk splines in rota-  0035-0.01 tional direction Fig. 4-281.  Measuring Clutch Disk Thickness Fig. 4-283. (3)   Check clutch steel disks for thickness and flatness, and for deformation, damage or wear. If unsatisfactory, replace with new ones. Note 1 :    When checking for flatness, put steel disk on a surface table and measure clearance between steel disk and surface table. Note 2 :    When checking for thickness, measure at inner, middle and outer sections of steel disk mating with composite disk. 4 - 159