TM 9-4120-403-14
Inspection
(1) Check control panel for dents, cracks, or punctures. Replace if damage creates a hazard or interferes with
operation.
(2)
Check that insulation, clamp, and grommet are in place and secure. Repair or replace as needed.
(3)
Check panels for cracks or dents that create a hazard or interfere with operation.
Repair
(1)
Tighten mounting hardware.
(2)
Remove as much old insulation material as possible, by pulling or scraping away from the metal surface.
(3)
Soften and remove old adhesive and insulation residue, using toluene and a stiff brush.
(4)
Cut replacement insulation to size per dimensions in Appendix F.
(5)
Be sure that the surface to which the insulation is to be applied is clean and free of old adhesive material.
(6) Coat the mating surfaces of the metal and the insulation with adhesive. Let both surfaces air dry until the
adhesive is tacky, but will not stick to fingers.
(7)
Starting with an end, carefully attach the insulation to the metal. Press into firm contact all over.
Follow-on procedures:
(1)
Install control panel wiring harness. (See para 4-30.)
(2)
Install two-speed fan switch. (See para 4-29.)
(3)
Install temperature control thermostat. (See para 4-28.)
4-71
