TM 9-2330-246-14
4-133. HEATER REPLACEMENT (M373A5).
This Task Covers:
b.
Installation
a.
Removal
Initial Setup:
Tools/Test Equipment:
Materials/Parts:
Marker tags (Item 24, Appendix E)
Z General mechanic's tool kit
Twenty-eight Iockwashers
Drain pan
Personnel Required: Two
REMOVAL
a.
WARNING
When working on heater and fuel lines and fittings, the work are must be well-ventilated.
Failure to follow this warning may result in injury to personnel.
NOTE
Use a drain pan to catch any draining fuel. Clean up all spills.
1.
Tag and disconnect two fuel lines (7) from heater (4) and allow fuel to drain.
Disconnect electrical connector (8) from heater (4).
2.
Remove six screws (6) and Iockwashers (5) securing rail (2) to semitrailer wall (3). Discard Iockwashers.
3.
Remove six screws (1) securing rail (2) to heater (4).
4.
Remove eight bolts (12) and Iockwashers (11) securing two angles (10) to heater (4). Discard Iockwashers.
5.
Remove 14 nuts (1 6), Iockwashers (1 5), and bolts (13) securing two angles (10) and two angles (1 4) to support
6.
plate (18). Discard Iockwashers.
Disconnect union (9) from heater (4).
7.
With aid of an assistant, remove heater (4) from semitrailer.
8.
Remove support plate (18) from brace (17).
9.
Remove four screws (19) brace (17).
10.
INSTALLATION
b.
Install brace (17) using four screws (19).
1.
Install support plate (18) on brace (17).
2.
With aid of an assistant, position heater (4) for installation and connect union (9).
3.
Install two angles (10) and two angles (14) on plate (18) using 14 bolts (13), new Iockwashers (15), and nuts (1 6).
4.
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