Put a piece of tape  on the carousel at pocket 1. Remove the pocket number ring .
Remove the sliding panel cover , compression spring , rivet , and sliding panel . Replace all damaged parts. Clean all debris from the pocket.
Apply Mobil SHC-460 grease to the new compression spring. Put the 3/32" rivet into the end of the compression spring. Install the new compression spring  and new sliding panel . Install the new sliding panel cover  while you push the end of the spring  under the panel.
Torque the (2) 10-32 SHCS  to 20 in-lb (2.26 Nm).
Apply medium-strength thread-lock compound (for example, blue Loctite®) to the (2) 10-32 flat head cap screws (FHCS) . Install the (2) FHCS  and torque to 20 in-lb (2.26 Nm). Make sure the sliding panel  moves freely.
Install the pocket number ring . Make sure the number 1 on the number ring aligns with the tape  on pocket 1 of the umbrella tool changer.