POWER DISTRIBUTION BOX CIRCUIT

TM 32-5410-221-14&P

(1) Remove damaged or excessively worn

d. Pull firmly on other edge of circuit breaker until

floor mat.

other clip releases.

CAUTION

e. Remove circuit breaker.

f. Position new circuit breaker and press firmly on

Ensure that cleaner does not get into

left or right edge until clip engages.

the floor panel of the S-280( )/G. It

g. Press firmly on other edge of circuit breaker

will dissolve the styrene core

until other clip engages.

material.

h. Reinstall power distribution box cover.

i. Set Main Power Switch to ON.

(2) Clean adhesive from floor using netone

j. Test new circuit breaker operation.

methylethyl cleaner, item 3, Appendix F.

(3) Apply zinc chromate primer, item 20,

5-12

LIMIT SWITCH. See figure E-9.

Appendix F, to floor.

(4) Apply lusterless gray enamel, item 8,

WARNING

Appendix F, over primer.

(5) Cut new floor mat to size using matting,

Dangerous voltage is present in the

item 13, Appendix F.

electrical circuits. Death on contact

NOTE

may result.

Use all safety

Do not use adhesive when installing

precautions and be extremely careful

new floor mat.

when

performing

electrical

troubleshooting and repairs.

(6) Lay new floor mat in place.

a. Removal.

e. Replace light bulbs as follows. See figure E-11.

(1) Set LIGHTS circuit breaker to OFF.

Provide other lighting as required.

(1) Remove two screws (1), flat washers (2),

and lockwashers (3) from lamp fixture.

(2) Remove limit switch cover by removing

four screws.

(2) Remove window glass (13 or 14) from

lamp fixture.

(3) Tag and disconnect lead wires.

(3) Replace defective bulb(s).

(4) Detach limit switch from shelter wall by

removing three screws (2).

(4) Reinstall window glass (13 or 14) on lamp

fixture.

(5) Disconnect conduit fitting from limit switch

housing.

(5) Secure, using two screws (1), flat washers

(2), and lockwashers (3).

(6) Remove limit switch.

5-11

POWER DISTRIBUTION BOX CIRCUIT

b. Installation.

BREAKER. See figure E-8. The circuit breakers are

secured to the box assembly by retaining clips at the

(1) Feed lead wires through limit switch wiring

rear of the circuit breakers. To replace a circuit breaker,

hole into limit switch housing.

proceed as follows:

(2) Connect conduit fitting to limit switch.

WARNING

(3) Attach limit switch to shelter wall using

three screws (2).

Dangerous voltage is present in the

electrical circuits. Death on contact

(4) Connect lead wires.

may result.

Use all safety

(5) Install limit switch cover using four

precautions and be extremely careful

screws.

when

performing

electrical

(6) Set LIGHTS circuit breaker to ON.

troubleshooting and repairs.

(7) Test new limit switch.

a. Set Main Power Switch to OFF. Provide other

5-13

HASP ASSEMBLY. See figure E-9. The hasp

lighting as required.

is secured to the shelter ceiling by three screws (2).

b. Remove power distribution box cover.

Remove the screws to replace the hasp.

c. Pull firmly on left or right edge of circuit breaker

until clip releases.

5-9