TM 5-4310-375-14
4-20. Intercooler and aftercooler. Maintenance of intercooler and aftercooler is limited to the following:
Removal/Disassembly. Remove and disassemble intercooler and aftercooler in following sequence.
a.
WARNING
Drain air system before performing any maintenance. Open air receiver
drain cock.
(1) Unscrew and remove three screws (1, fig 4-7), attaching intercooler (2) to cylinder head. Remove two o-ring
gaskets (3).
(2) Unscrew and remove six screws (4), separate intercooler cap (5) from intercooler (2) and remove cap
gasket (6).
(3) Disconnect air discharge piping (see para 4-30) from aftercooler air outlet. Unscrew and remove two screws
(7, fig 4-7) attaching aftercooler (8) to cylinder head. Remove the o-ring gasket (9).
(4) Unscrew and remove four screws (10), separate lower aftercooler cap (11) from aftercooler (8) and remove
cap gasket (12).
(5) Unscrew and remove four screws (13), separate upper aftercooler cap (14) from aftercooler (8) and remove
cap gasket (15).
WARNING
Dry cleaning solvent, Federal Specification P-D-680, used to clean parts is
potentially dangerous to personnel and property. Avoid repeated and pro-
longed skin contact. Do not use near an open flame or excessive heat. Flash
point of the solvent is 100F - 138F (38C - 59C).
b. Cleaning/Inspection. Wipe o-ring gaskets (3, 9, fig 4-7) and cap gaskets (6, 12, 15) with a clean, lint-free cloth
moistened slightly with solvent, P-D-680, or equivalent. Clean intercooler (2), aftercooler (8) and caps (5, 11, 14) with
solvent, P-D-680, or equivalent, and air dry. Examine o-ring gaskets (3, 9) and cap gaskets (6, 12, 15) for breaks, cuts
and evidence of pinching. Inspect other parts for breaks and cracks. Notify organizational maintenance of any defects for
replacement.
Reassembly/Installation. Reassemble and install the intercooler and aftercooler in following sequence.
c.
(1) Place cap gasket (15, fig 4-7) in groove provided, install upper aftercooler cap (14); secure with four screws (13).
(2) Place cap gasket (12) in groove provided, install lower aftercooler cap (11); secure with four screws (10).
(3) Place o-ring gasket (9) in groove provided, install aftercooler (8) onto cylinder head and secure with two
screws (7). Connect air discharge piping to aftercooler air outlet (see para 4-30).
(4) Place cap gasket (6) in groove provided, install intercooler cap (5) and secure with six screws (4).
(5) Place the two o-ring gaskets (3) in grooves provided, install intercooler (2) onto cylinder head and secure
with three screws (1).
4-20
