FRESH AIR DUCT, OUTSIDE COVERS, SCREENS, FRAMES, GUARDS, AND INFORMATION AND IDENTIFICATION PLATES

TM 5-4120-359-14

b. For inspection, removal and installation of item, see the following paragraph references as applicable.

Fresh air duct

paragraph 3-13

Access cover

paragraph 3-14

Front evaporator cover

paragraph 3-17

Return air frame

paragraph 3-18

Evaporator discharge frame

Fresh air cover

Top evaporator cover

Feed thru cover

Front condenser cover

paragraph 3-23

Top condenser cover

paragraph 3-25

Right end condenser cover

paragraph 3-26

Left end condenser cover

paragraph 3-27

Condenser guard

paragraph 3-28

Condenser discharge grille

paragraph 3-29

Removal of bad gasketing or insulation.

NOTE

Prior to removal of old gasket material or insulation, cut the new replacement

material to size using the old item as a sample.

(1) Remove as much ad gasket or insulation material as possible by pulling or scraping it away from the metal

surface.

WARNING

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 a well-ventilated area, wear gloves, and keep away from sparks or

flame.

(2) Soften and remove old adhesive and gasket residue, using acetone or methyl-ethyl ketone (MEK) and a stiff

brush.

d. Gasket installation

(1) Use only approved replacement material as specified in TM 5-4120-359-24P.

(2) EMI gasket material and regular gasketing specified for this unit are supplied with adhesive backing.

(3) Cut gasket to size. Be sure that EMI gasket corners are mitered so that good continuous edge contact is

made.

(4) Be sure that surface to which gasket is to be applied is clean and free of paint and old adhesive material.

(5) Remove backing material from adhesive side and immediately press gasket in place. Be sure that good edge

to edge contact is made on the EMI gaskets.

e. Insulation installation

(1) Cut to size.

(2) Be sure that the surface to which the insulation is to be applied is clean and free of paint and old adhesive

material.

(3) Coat the mating surfaces of the metal and the insulation with adhesive (item 12, Appendix E). Let both

surfaces air dry until the adhesive is tacky but will not stick to the fingers.

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