IBM 6151 Maintenance And Service Manual page 723

Appendix A. Tool Requirements
This appendix contains the descriptions and part numbers for
special tools used to service the IBM 6151 System Unit.
Wrap Plugs for the Service Representative
The wrap plugs used by the service representative are stored in the
back of this manual. The wrap plugs used by the customer are
stored in the back of the Problem Determination Guide. You are
directed by the diagnostic program when to install or remove a
wrap plug.
The Printer Adapter Wrap Plug (Part Number 8259228) is not
shipped with this manual or the Problem Determination Guide.
This is the same wrap plug used with the IBM Personal Computer.
(6/88) Tool Requirements A-I