TM 9-4120-407-14
4-33. INSULATION INSPECTION AND REPLACEMENT.
c. Installation
a. Inspection b. Removal
This task covers:
Remove panels as necessary. See para 3-14.
Service Refrigeration Unit Tool Kit
(Item 1, Appendix B)
Brush (Item 2, Appendix B)
Acetone (Item 18, Appendix E)
Methyl-Ethyl Ketone (Item 19, Appendix E)
Adhesive (Item 1, Appendix E)
a . Inspection. Check if insulation is loose, missing, burnt, or otherwise damaged. Replace if missing or
damaged. If loose, apply adhesive to secure.
b. Removal.
(1) Remove as much old insulation as possible by pulling or scraping it away from the metal surface.
Acetone and methyl-ethyl ketone (MEK) are flammable and their
vapors can be explosive. Repeated or prolonged skin contact or
inhalation of vapors can be toxic. Use in a well ventilated area,
wear gloves, and keep away from sparks or flame.
(2) Soften and remove old adhesive and insulation residue, using acetone or methyl-ethyl ketone
(MEK) and a stiff brush.
c. Installation.
(1) Fabricate new insulation. See appendix F.
(2) Be sure that the metal surface where the insulation is to be applied is clean and free of paint and
old adhesive material.
(3) Adhesive Backed Insulation.
(a) Peel paper backing off insulation.
(b) Starting with an end, carefully attach insulation to the metal surface. Press firmly overall to
ensure complete contact.
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