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|  MIL-M-52329C
3.9.9.1 Lighting. All lights shall operate as specified herein on 24
volts. All lights shall be provided with shock and vibration protection by
location and though use of resilient mountings to prolong filament life.
Front and rear identification, clearance, and side-marker lights shall be
cluster mounted on plates inserted into lamp bracket sockets conforming to
SAE J725. These clusters shall be removable for storage during periods of
operation. Each cluster shall be equipped with instruction plates to preclude
incorrect replacement of the cluster in preparation for travel. The rear
service combination lights shall be mounted in industry standard 4-1/2 inch
diameter holes. These lights shall be of the flush or recess mount type
having either a sealed unit mounted in an elastomer ring, 02 a bulb and lens
mounted in an elastomer watertight housing. If furnished, bulbs shall be
double contact, indexing base type, Trade No. 1662. These lights shall be
installed as far apart as possible for turn-signal operation as well as stop
and taillight indication. The blackout combination lights shall be installed
inboard or below the service combination lights. These lights shall be in-
stalled and centered behind 6-inch-diameter holes and shall be flush with
the service combination lights. Forward shielding shall be provied to prevent
damage from road splash.
3.9.9.2 Wiring. The wire for both service and blackout light systems
shall be as shown on figure 5. The wiring shall be protected from heat and
road splash, and routing shall be within framing members wherever possible,
The electrical connector receptacle shall be located on the front as speci-
fied in SAE J702. The leads from the receptacle Shall routed to a splash-
proof, semitrailer nosebox or to the twin junction boxes. The nosebox shall
contain terminals for all circuits and the three circuit breakers for the
designated circuits. The terminals shall be either spring loaded for bare
wire cables or nut and washer for spade terminal cables. Cushioned clamps,
loom, thinwall conduit, and grommets shall be provided to prevent whipping,
chafing, and other mechanical and heat damage. Wiring shall be fastened to
the framing members at intervals not to exceed 3 feet. TWO or more cables in
the same routing shall be enclosed in loom having each end waterproofed, or
shall be bound together in harness with one-half overlapping wraps of plastic
electrical tape. Splices shall be waterproof'. Mechanical splicing devices,
it used~ shall be fastened to the framing members with the interior of the
device waterproofed with silicon lubricant. All circuits shall be identifed
by number coding as specified in figure 5. The circuit number bands shall be
installed near each connection. The mating surfaces of the elastomer friction
connectors shall be lubricated with silicon lubricant prior to assembly. The
assembled friction connectors shall be secured to the framing with holder
clips to prevent fatigue cable breakage. Terminal connectors shall be of the
straight-type spade or side-type spade, and application shall be limited to
use within the waterproof nosebox and as component ground leads.
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