TM 9-2330-238-14
4-72. EXHAUST SYSTEM REPLACEMENT (Con’t).
b .
INSTALLATION (M313)
1.
Install exhaust pipe (7) in heater.
2.
Position new seal (8) on bonnet and secure with four screws (10) and new Iockwashers (9).
3.
Position two clamps (6) on exhaust pipe (3).
4.
Install exhaust pipe (3) through seal (8) and mated with exhaust pipe (7).
5.
Aline holes in two clamps (6) with holes in bonnet and secure with eight screws (5).
6.
Secure two clamps (6) to exhaust pipe (3) with two screws (4), new Iockwashers (2), and nuts (1).
c.
REMOVAL (M447, M447C, AND M750)
1.
2.
3.
4.
5.
6.
7.
Remove eight screws (20) and Iockwashers (19) from two clamps (22) on exhaust pipe (18) and bonnet. Discard
Iockwashers.
Remove exhaust pipe (18) and two clamps (22) from spacer (16).
Open side bonnet doors.
Remove two screws (23) and self-locking nuts (21) from clamps (22) and remove clamps from exhaust pipe (18).
Discard self-locking nuts.
Remove eight screws (12), washers (13), Iockwashers (14), and two plates (15) from bonnet. Discard
Iockwashers.
Remove spacer (16) and four preformed packings (17) from bonnet and exhaust tube (11). Discard preformed
packings.
Remove exhaust tube (11) from heater.
TA702049
4-177
