TM 9-2330-246-14
4-132. HEATER REPLACEMENT (M373A2D) (Con't).
1.
Tag and disconnect fuel lines (15) from heater (4) and allow fuel to drain.
2.
Disconnect electrical lead (11 ) from heater (4).
Remove six screws (3) and Iockwashers (2) securing rail (1) to semitrailer wall. Discard lockwashers,
3.
4.
Remove eight screws (13) and lockwashers (12) securing heater (4) to frame (10). Discard Iockwashers.
5.
Disconnect union (5) from heater (4).
With aid of an assistant, lift heater (4) and remove from frame (10).
6.
7.
Remove three rivets (16) securing rail (1) to heater (4). Remove rail. Discard rivets.
8.
Remove 12 rivets (14) securing frame (10) to semitrailer wall. Discard rivets,
9.
Remove four screws (7) and Iockwashers (8) securing plates (9) to semitrailer wall. Remove frame (1 O) with
braces (6) and plates attached. Discard Iockwashers.
TA700380
4-320
