3-28. HEATER TEMPERATURE CONTROLLER MAINTENANCE.
This task covers:
Tool Kit, General Mechanics
Cleaning Solvent (Item 11, Appendix E)
Cleaning solvent, Federal specification P-D-680, is toxic and flammable. Use only in a well-
ventilated area. Avoid prolonged breathing of fumes. Keep solvent away from flames. Do not
use in excessive amounts. Avoid skin contact.
Heater unit shut down and cool.
Power cable disconnected from power source.
Access door removed (para. 3-10a).
Tag and disconnect wiring from terminal strip (2).
Remove two screws (3), two lockwashers (4), two flat washers (5), and temperature controller (1).
Change 3 3-80