TM 9-2320-273-20
EXHAUST SYSTEM.
4-35. FLEX PIPES MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
A. REMOVAL.
1. Eight coupling nuts (2).
Loosen and slide three coup-
lings (4) and coupling (8) onto
flex pipes (3) and (6).
2. Flex pipes (3) and (6).
Remove.
3. Three couplings (4) and
Remove and discard.
coupling (8).
B. INSPECTION OF MATING FLANGES.
4. Turbocharger outlet pipe (7),
Inspect pipes and pipe ends
Replace if necessary.
muffler inlet pipe (5),
for:
muffler (1), and flex pipes
a. Cracks.
(3) and (6).
b. Distortion.
c. Burring.
C. INSTALLATION.
5. Three new couplings (4)
Slide onto flex pipes
and coupling (8).
(3) and (6).
6. Flex pipes (3) and (6).
Put in place.
7. Three new couplings (4)
Slide into position over
and coupling (8).
connections.
8. Eight coupling nuts (2).
Tighten to 45 Ib-ft
(61 N·m) with torque
wrench.
D. CHECKING FOR LEAKS.
9. Engine.
Start up (see TM 9-2320-
273-10).
10. Flex pipes (3) and (6);
Listen for leaks
Retighten coupling nuts
three couplings (4) and
(2) as necessary.
coupling (8).
11. Engine.
Shut down (see TM 9-2320-
273-10).
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