Repair of Large Single Skin Puncture or Cut.
This task covers:
General Mechanics Automotive Tool Kit
Gloves (Item 1, Appendix D)
Caulking Gun (Item 2, Appendix D)
Caulking Cartridge (Item 3, Appendix D)
Epoxy Resin (Items 4 & 5, Appendix D)
Container, Unwaxed (Item 6, Appendix D)
Polyethylene Sheet (Item 20, Appendix D)
Cloth, Cotton (Item 10, Appendix D)
Cloth, Emery (Item 13, Appendix D)
Solvent, Toluene (Item 9, Appendix D)
Aluminum (Item 19, Appendix D)
Rivet, Countersunk (Item 16, Appendix D)
Core Material (Item 31, Appendix D)
The following repair procedures are for damaged skin between
structural members. If the puncture or cut did not seriously damage the
foam core, follow the procedures in paragraph 4-9. If the puncture or
cut damaged the foam core, follow the procedures below using block
insulation or a cutout.
Repair. (Figure 4-5)
Select an aluminum skin patch that overlaps the puncture or cut by one inch in
Use the aluminum skin patch as a template positioned over the puncture or cut,
and lightly scribe the area of the aluminum skin patch on the skin of the shelter.
Use a saw to cut and remove the punctured or cut skin area approximately one
inch within the scribed mark (A and B, Figure 45). While cutting, take care not
to cause additional damage to wall or interior skin.
Cut the foam core evenly along the edges where the skin is removed and remove
the damaged foam core (B, Figure 4-5), maintaining perpendicular and straight
Select a piece of block insulation or a cutout of the same type sandwich
construction (C, Figure 4-5).