Section II MAINTENANCE PROCEDURES - TM-5-4120-393-140290

TM 5-4120-393-14

Section II MAINTENANCE PROCEDURES

6-2. General. The only items restricted to intermediate general support maintenance level by the Maintenance Allocation

Chart (MAC) are to repair and replace elements of the air conditioner housing. However, intermediate general support

maintenance may be called upon, at times, to perform any or all of the MAC Items listed for unit and intermediate direct

support maintenance for rehabilitation or overhaul of an air conditioner.

6-3. Sheet-Metal Parts.

Disassemble the air conditioner to the extent necessary to gain access to damaged area for repair.

Remove insulation from area to be repaired. (See para 5-3.)

c. Repair damage using standard sheet-metal repair procedures. Rivet or weld patches to the inside surface when

required.

WARNING

Toxic fumes are emitted by burning or overheated insulation. Heated refrigeration

piping can burst with explosive force. Shield wiring and piping, and remove

insulation in the area if weld repair is necessary.

d. Prepare surface for priming and painting, using wet abrasive paper to remove dead paint. Paint as directed in

TM 43-0139.

Replace insulation as necessary and reassemble the air conditioner.

6-2