TM 9-4120-398-14
6-3. CASING, REPAIR (cont)
(c) Check that insulation is not loose, missing, burnt, or otherwise damaged. Replace if missing or dam-
aged. Reglue if loose.
(2) Insulation/removal.
NOTE
Prior to removal of old insulation, cut the new replacement material to size using the old item as a sample.
(a) Remove as much old insulation material as possible, by pulling or scraping it away from the metal
surface.
Dry cleaning solvent (Federal Specification PD-680) used to clean parts is potentially dangerous to
personnel and property. Do not use near open flame or excessive heat. Flash point of solvent is 100F
to 138F (38 C to 59 C).
(b) Soften and remove old adhesive and insulation residue, using dry cleaning solvent (Item 15 Appen-
dix E) and a stiff brush.
(3) Installation.
NOTE
Prior to removal of old insulation, cut the new replacement material to size using the old item as a sample.
(a)
Cut to size.
Be sure that the surface to which the insulation is to be applied is clean and free of paint and old
(b)
adhesive material.
(c) Coat the mating surfaces of the metal and the insulation with adhesive (Item 1 Appendix E). Let
both surfaces air dry until the adhesive is tacky, but will not stick to the fingers.
(d) Starting with an end, carefully attach the insulation to the metal. Press into firm contact all over.
6-2