TM-9-2320-273-20

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE

NOVEMBER 1980

TM-9-2320-273-20 - Page 314 of 1500

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).

4-122