TM 5-4520-256-14
4-5. CONTROL PANEL MAINTENANCE.
This Task Covers:
a. Removal
b. Inspection
c. Cleaning
c. Repair
d. Installation
INITIAL SETUP:
Tools Required:
Tool Kit, General Mechanics
Materials Required:
Abrasive Paper (Item 5, Appendix E)
Cleaning Solvent (Item 11, Appendix E)
Paint (Item 4, Appendix E)
Primer (Item 8, Appendix E)
WARNING
·
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.
·
Paints are flammable. Use in a well-ventilated area and remove all possible sources of ignition to
prevent potential injury.
Equipment Conditions:
Heater unit shut down and cool.
Power cable disconnected from power source.
OFF/VENT/HEAT switch (S1) removed (para 3-14a).
Fuel pressure gage removed (para 3-15a).
Hour meter removed (para 3-16a).
Safety relay (K8) removed (para 3-17a).
Audible alarm (EM1) removed (para 3-18a).
Circuit breaker (CB1) removed (para 3-19a).
ON/OFF toggle switch (S7) removed (para 3-20a).
Rectifier removed (para 3-21a).
INTERNAL TANK/EXTERNAL TANK selector removed (para 3-22a).
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