TM 5-4520-241-14
5-8.
HARDWARE.
a. Clean all hardware by immersing in dry cleaning solvent (fed. spec. P-D-680). Wipe thoroughly and allow to dry.
b. Inspect all threaded parts for broken or damaged threads and replace as needed.
c. Inspect bright metal hardware for integrity of plating, and replace any corroded parts.
SECTION IV. REMOVAL AND INSTALLATION OF MAJOR
COMPONENTS AND ASSEMBLIES
5-9.
CONTROL BOX.
a. Removal.
(1) Detach the control box from the heater case by unlocking the two stud turnlock fasteners from inside the
control box. Disconnect the male plug of the control box wiring harness from the female receptacle of the heater's
electrical harness.
(2) The individual components of the control box can be readily removed at this point.
b. Installation. Install in reverse order of removal.
5-10.
HEATER CASE ASSEMBLY.
a. Removal.
(1) The right and left side panels can be removed by unlocking the stud turnlock fasteners which secure them to
the heater case.
(2) Remove the hardware that secures the access doors to the heater case; remove the access doors.
(3) The data plates are riveted to the heater case. The rivets must be drilled out and replaced to install new data
plates.
b. Installation. Install in reverse order of removal.
5-11.
WIRING HARNESS.
WARNING
This space heater contains dangerous voltages which can cause severe electrical
shock. Be sure to disconnect the power plug before repairing the beater.
5-21