a. Worn Disk Liners. When disk liners are worn down flush (or nearly flush) with rivet heads, disk and liner assembly must be replaced.

RA PD 315717
Figure 29—Outer Assembly Removed, Exposing Clutch Disks

RA PD 315718
Figure 30—Clutch Disks, Removed

b. Loose Liner Rivets. If disk liner rivets are loose, replace disk and liner assembly with like assembly in new or good order.