3-9. General Repair Procedures (cont).
Figure 3-8. Removing Rivnuts.
Do not puncture opposite face sheet of panel when punching out rivnut shank.
(c) Punch out shank of rivnut, using a pin punch slightly smaller than hole in structure. Punch only
enough to disengage. Move rivnut aside to install new rivnut.
c. Temporary Panel Repair.
Any puncture in the shelter exterior, including punctures in the door skin, must be
patched immediately to prevent water intrusion. In shelters with RFI/EMI shielding, any rupture of the future
sheet must be patched immediately to prevent radiation leakage. Dents without pictures do not require
patching. However, if bare metal is exposed, touchup paint shall be applied (para 3-10).
Adhesive (items 2,3,4 or 5,
Tape, pressure sensitive
(Item 35, Appendix D)
Electrically conductive tape
(for shielded shelters)
(Item 32, Appendix D)
Sandpaper, grit nos. 40,60 and 80
(Items 26,27 and 28, Appendix D)
Clean Cloths (Item 9 or 10, Appendix D)
Solvent (item 37, Appendix D)
Gloves (Item 12, Appendix D)
Goggles (item 38, Appendix D)
Paint strippers can contaminate panel core, adhesive and sealers. Do not use paint
strippers to remove paint.
RFI/EMI shielded shelters should not be used until an RFI/EMI suppression patch has