TM 9-4120-388-14
GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
Section I. REPAIR PARTS, SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT
6-1. GENERAL. Repair parts are listed and illustrated in TM 9-4120-388-24P, Unit, Direct Support, and General Sup-
port Maintenance Repair Parts, and Special Tools List. No special tools are required for general support maintenance of
the air conditioner. Test, Maintenance, and Diagnostic Equipment (TMDE), and support equipment, includes standard
electrical test equipment, and standard pressure and vacuum gages, vacuum servicing manifolds found in any general
support maintenance refrigeration facility.
Section Il. AUTHORIZED GENERAL SUPPORT MAINTENANCE ACTIONS
6-2. GENERAL. The only items restricted to general support maintenance level by the Maintenance Allocation Chart
(MAC) are the repair of cracked or broken welds, repair or replacement of blind nuts, nut plates, and lifting handles in cas-
ing, and blind nuts and nut plates in base. However, general support maintenance may be called upon, at times, to perform
any or all of the MAC items listed for unit and direct support maintenance for rehabilitation or overhaul of an air conditioner.
6-3. BLIND NUTS AND NUT PLATES.
To replace blind nuts (rivnuts) use a drill slightly smaller than the body of the blind nut.
a.
(1) Carefully drill the old blind nut out.
(2) Install replacement part.
b. To replace nut plates, use a drill slightly smaller than the body of the rivets securing the nut plate.
(1) Carefully drill the rivets loose.
(2) Remove the old nut plate.
(3) Install new nut plate with properly sized rivets.
