CLEANING

TM 32-5895-342-14&P

5-10 CLEANING. Clean all equipment as follows:

a. Removal. Refer to figure E-9.

WARNING

(1) On power junction box panel, set

The fumes of trichloroethane are

CONVENIENCE OUTLETS (14) circuit breakers to OFF

toxic. Provide thorough ventilation

position.

whenever used. DO NOT USE NEAR

(2) Remove fastener screws that secure

HEAT OR AN OPEN FLAME.

receptacle box covers. Remove covers.

Trichloroethane is not flammable,

(3) Remove screws that secure receptacles in

but exposure of fumes to an open

box. Pull receptacles out of box.

flame or hot metal forms highly toxic

(4) Tag each input power lead to receptacles.

phosgene gas, which can injure

Mark each tag with its respective terminal connections.

personnel if inhaled.

(5) Disconnect leads to receptacles.

b. Replacement.

a. Use lint-free cloth to remove dust and dirt from

(1) Connect power leads to receptacles. Be

all equipment.

sure tags match with terminal connections.

b. Use one-inch bristle brush to remove dirt and

(2) Insert receptacles into box and secure

dust from hard to reach areas.

with screws that were removed.

c. Remove hardened dirt with one-inch bristle

(3) Attach receptacle box covers and secure

brush soaked with trichloroethane. Wipe dry with clean,

with screws that were removed.

dry, lintfree cloth.

(4) On

power

junction

box,

set

d. Remove hardened dirt with one-inch bristle

CONVENIENCE OUTLETS circuit breakers (14) to ON

brush soaked with trichloroethane. Wipe dry with clean,

position.

dry, lintfree cloth.

5-13 JUNCTION BOX AND CIRCUIT BREAKERS.

5-11 AVIATION LIGHTS.

WARNING

Death or injury may result from

contact with electrical connections.

Disconnect power before servicing

any electrical equipment.

a. Junction Box Removal. Refer to figure 2-14.

a. Removal

(1) Tag each lead of primary power source

(1) Set lighting switch (figure 3-3) and light

input.

Mark each tag with terminal connection

circuit breaker (figure 3-2) to OFF.

designator. Disconnect primary power source.

(2) Remove protective lenses on the two dual

(2) Tag each input power lead to junction box

obstruction light fixtures (2, figure 2-13).

and each output lead to aviation lights, hoist, and

(3) Turn lamp(s) counterclockwise and

convenience outlets. Mark each tag with terminal

remove.

connection designator. Disconnect input power leads to

b. Replacement.

junction box, and output leads to aviation lights, hoist,

(1) Install new lamps, as necessary, in

and convenience outlets.

sockets.

(3) Remove hex nut (5), lockwasher (4), and

(2) Install protective lamps.

bolt (3) that secure convenience outlet (2) to junction

box mount plate (6). Remove convenience outlet. Tag

(3) Set lighting switch and light circuit breaker

and disconnect convenience outlet power leads.

to ON.

(4) Remove four hex nuts (5), lockwashers

(4), and bolts (3) that secure junction box assembly (7)

5-12 CONVENIENCE OUTLETS.

to junction box mount plate (6). Remove junction box

assembly.

WARNING

(5) Remove hex nut and tower step that

Death or injury may result from

secure junction box mount plate (6) to tower leg.

contact with electrical connections.

Remove junction box mount plate. Replace tower step

Disconnect power before servicing

and secure with hex nut.

any electrical equipment.

5-15