TM 5-4520-241-14
CHAPTER 7
REPAIR OF HEATER CASE ASSEMBLY
7-1.
DESCRIPTION.
The heater case consists of a welded steel framework with a shelf and bulkhead which together form four
compartments. It also supports side panels, louver linkage, access doors, and a bottom cover. Only the framework
requires repair at the direct support level.
7-2.
REPAIR.
a. Straighten any bends and hammer out any dents which interfere with the mounting or operation of heater
components. Replace any missing hardware. (See figure 7-1).
b. Drill out rivets (18) to replace any of the receptacles (19) which are used to secure panels.
c. Make sure grounding strap (9) is fastened securely to one of the mounting brackets.
d. Mount handle plates (4) with widest dimension toward top of heater to protect hands when carrying heater.
e. If bulkhead (14) must be removed, remove the ignition transformer leads, the ignition transformer, and the pivot
bar for the louver linkage before removing bulkhead.
7-1