TM 10-5411-207-14
4-7.
Delamination Repair.
This task covers:
a.
Inspect
b.
Repair
INITIAL SETUP
Tools
Materialsl/Parts
General Mechanic’s Automotive Tool Kit
Gloves (Item 1, Appendix D)
Riveter
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)
Roller Kit (Item 7, Appendix D)
Tape, Masking (Item 8, Appendix D)
Solvent, Toluene (Item 9, Appendix D)
Cloth, Cotton (Item 10, Appendix D)
Plywood (Item 11, Appendix D)
Polyethylene Sheet (Item 12, Appendix D)
Cloth, Emery (Items 13 & 14, Appendix D)
Sandpaper (Item 15, Appendix D)
Rivet, Countersunk (Item 16, Appendix D)
Fiber Filled Polyester Resin (Item 17, Appendix D)
a..
Inspect. The roof, floor, endwalls, and sidewalls are constructed of inner and outer
aluminum panels which are attached to structural mounting members. The area between the
inner and outer panels is filled with a polyurethane core bonded to the panels with an epoxy
adhesive. Separation of aluminum panel and polyurethane core will cause a structural weakness
in the area affected. To restore the overall strength of the shelter, large areas of delamination
should be repaired as soon as possible. Delaminated areas of the shelter may be detected by
movements of the aluminum panel similar to the movement of the bottom of an oil can when
pressed. The presence of delaminated areas should produce a light, hollow sound and a bonded
area a dull, solid sound. Sound will also change when tapping crosses panel mounting members,
When it has been determined that a shelter panel area has
b.
Repair. (Figure 4-1)
(1) Mark off the limits of delaminated area.
CAUTION
To ensure that opposite shelter wall skin is
been delaminated, repair as follows:
not punctured, make sure
drill bit has a drill stop attached which will prohibit drill bit from
exceeding a depth of 5/8 inch.
(2) Using Figure 4-1 as a visual guide, drill a 3/16 inch diameter hole in
approximate center of delaminated area of affected panel only. This hole will be
used to pump epoxy adhesive into delaminated area.
Change 1
4-3
