TM 5-3805-281-24-2
Air Intake and Exhaust System
INSPECT AND REPAIR AFTERCOOLER
(6081A ENGINES)
1. Inspect aftercooler for overall condition. The fins should
be reasonably straight, and cross straps should be free
of cracks.
2. Inspect aftercooler inlet and outlet hoses. Replace
either hose if cracked or damaged.
3. Test the aftercooler for leaks by plugging one of the
tubes (A).
4. Apply compressed air (B) to the other tube while unit is
submerged under water. Use 140--170 kPa (1.4--1.7
bar) (20-25 psi) air pressure for testing.
Testing Aftercooler Core for Leaks
IMPORTANT: Coolant leakage from the aftercooler
may cause severe engine damage.
A minor leak that is accessible may be repaired. However,
if the condition of the core is questionable, replace the
aftercooler.
RG,RG34710,1273
1923OCT971/1