CASING AND BASE-Continued.
General Safety Instructions:
Disconnect input power to the air conditioner before performing any internal
maintenance. Voltages used can kill. Shutting the unit off at the control panel
does not disconnect unit power.
a. Straighten minor dents and bent edges using common sheet metal repair procedures
b. Replace loose or missing rivets by drilling old rivet out with a drill bit slightly smaller than the diameter of old
rivet body and Installing replacement rivet.
c. Touch up or refinish as required. See TM 43--0'139.
d. Replace gaskets and Insulation.
Use only gaskets or insulation identified in this manual. Use of the wrong gaskets
or insulation could present a fire hazard.
Remove as much old gasket or Insulation material as possible by puling or scraping It away from the
Use care when using solvents. Solvents are toxic and anesthetic in nature when
vapors are allowed to concentrate. Do not use near hot materials or flames as
corrosive fumes may form or fire and explosion may result. Use solvents in well
ventilated areas. Avoid prolonged breathing of vapors and contact with clothing,
skin or eyes. Wear rubber gloves and facie shield when applying solvents.
(2) Soften and remove old adhesive and gasket or insulation residue using solvent and a stiff brush.
(3) Coat the mating surfaces of the metal and gasket or insulation with adhesive. Let both surfaces air dry
until the adhesive Is tacky but will not stick to fingers.
(4) Starting with an end, carefully attach the gasket or insulation to the metal. Press into firm contact all over.
Install panels and side door assemblies. See paras 4-17 and 4-19.