TM 9-2320-209-34-2-3 Index Number 1 2 1 and 2 3 2 and 3 4 2 and 4 5 6 7 Table 18-10. Rear Winch(Drum and Shaft)Wear Limits Item/Point of Measurement Inside diameter of drumshaft-to- support bushing-type bearing Outside diameter of drumshaft Fit of bearing on shaft Inside diameter of drum bushing- type bearings Fit of bearing on shaft Inside diameter of drumshaft-to- worm gear housing bushing-type bearing Fit of bearing on shaft Thickness of drumshaft retaining collar Thickness of drum brake lining Thickness of drive gear thrust washer Size and Fit of New Parts (inches) 2.446 to 2.448 2.433 to 2.438 2.446 to 2.448 2.446 to 2.448 0.008L to 0.015L 2.446 to 2.448 0.008L to 0.155L 0.864 to 0.884 0.375 0.217 to 0.220 Wear Limit (inches) 2.456 to 2.468 2.423 to 2.428 2.456 to 2.458 2.456 to 2.458 None 2.456 to 2.458 None 0.839 to 0.859 0.313 0.212 to 0.220 18-109