Weld cracks in the mounting plates (36) or supports (40) in accordance with MIL-STD-248.
Straighten bent fins on the core (30), and repair damaged gasket surfaces by straightening and filing.
Replace the core (30) if the inlet or outlet tubes are dented or out-of-round in the packing area.
Replace the core if the core tubes are corroded to the extent that they dent easily when pressed lightly.
Repair leaks in soldered joints or core tubes by soldering in accordance with MIL-S-6872. After soldering,
test for leaks in accordance with step f, above.
Install new packings (22) in the grooves of the tubes (21), and assemble the tubes and inlet connection
(20) to the housing (25).
Refer to Table 2-2. Fabricate two guide studs and install them in the upper comers of the housing (34,
Coat gaskets (29) with sealing compound, MIL-S-45180, and install a gasket, the core (30), and another
gasket over the guide studs.
Install the covers (28) over the guide studs and secure with several capscrews (27) using lockwashers (2)
and washers (3). Tighten the capscrews finger tight.
Remove the guide studs, and install the remaining washers (3), lockwashers (2), and capscrews (27).
Using the sequence shown in Figure 9-79, tighten the capscrews in three stages to 25 to 30 pound-feet
(34to 41 newton-meters).
Check to be sure that the inlet and outlet tubes of the cores (30, Figure 9-78) are centered in the adapter
openings of the housing (34). If it is necessary to center the tubes, bend them slightly using a wooden
(7) Install packings (15 and 23) in the adapter connections (17). Coat gaskets (18) with anti-seize compound,
MIL-A-907, and install the gaskets and adapter connections (17) on the housing (34).
Figure 9-79. Tightening Sequence, Aftercooler Housing Covers