ARMY TM 9-6115-464-34
AIR FORCE TO 35C2-3-445-2
NAVY NAVFAC P-8-624-34
5-3. HEATER CONTROL ASSEMBLY.
a. Removal. Refer to the Operator and Unit Maintenance Manual for heater control assembly removal
instructions.
b Disassembly.
(1) Tag all electrical leads before disconnecting.
(2) Remove screws (1, figure 5-1), and remove panel assembly (9), from housing (21).
(3) Remove nut (2), tooth lockwasher (3), on-off switch (15), and key washer (11).
(4) Remove nut (4), Iockwasher (5), and circuit breaker (16).
(5) Remove lens (6), lamp (7), nut (8), lockwasher (10) and indicator light base (17) from panel (9).
(6) Remove screw (13) from housing (14).
(7) Remove nut (18), screw (19), and connector, from housing (21).
c. Cleaning, Inspection, and Repair.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
WARNING
Compressed air used for cleaning and drying purposes can create airborne particles
that may enter the eyes. Pressure shall not exceed 30 psig and use only with adequate
chip guards and chipping goggles. Failure to observe this warning could result in
serious personal injury or death.
WARNING
Solvent, Dry Cleaning P–D-680, Type II is flammable and moderately toxic to skin,
eyes and respiratory tract. Eye and skin protection required. Good general ventilation
is normally adequate.
Failure to observe this warning could result in serious personal
injury or death.
Clean all electrical parts with filtered compressed air and a soft bristle brush. If necessary, caked
deposits may be removed with a clean, lint-free cloth moistened with solvent P-D-680 Type Il.
Clean all non-electrical parts with a clean, lint–free cloth moistened with dry cleaning solvent
(Federal Specification P-D-680).
Inspect ON-OFF switch for cracked casing, corrosion, and burns or other evidence of shorting.
Place switch in the ON position and check for continuity, using an ohmmeter. Ohmmeter shall
indicate continuity. Check for open circuit with switch in the OFF position. Ohmmeter shall indicate
open circuit.
Inspect circuit breaker for cracked casing, corrosion, and burns or other indications of shorting.
Using an ohmmeter, check for open circuit across circuit breaker terminals. Ohmmeter shall indicate
open circuit. Depress circuit breaker button. Ohmmeter shall indicate continuity.
Inspect indicator light lens for cracked or broken glass, corrosion, and other damage.
Inspect lamp for cracked or broken glass, burned out filament and corrosion.
Check indicator light base for cracks, corrosion, and burns.
Inspect wiring harness for damaged connectors, wires, and terminals. Check individual wires for
continuity using figure 5-2 as a guide.
5-5
