STB
SPARE MATCH REAR
requirements of 3.4.12 and
When code STB is specified, a
3.4.12.1 shall be provided with
spare tire assembly for the rear
the following additional space,
axle shall be provided.
equipment and features: The
sleeper compartment shall be
STC
OUTSIDE SPARE TIRE
not less than 1524 mm (60
When code STC is specified, a
inches) in depth (1371 mm/54
carrier for a spare tire assembly
inches if integral with cab) and
shall be provided. The carrier
fitted with a foam or inner spring
design
shall
enable
safe
mattress not less than 863 mm
removal or mounting of a spare
(34 inches) in depth, and a
tire assembly using only the
sleeper
occupant
restraint
tools specified in option JT. The
system.
A
luggage
carrier shall enable the safe
compartment
with
locking
removal and installation of the
access doors on each side of
spare tire assembly from and to
the cab shall be provided.
the vehicle and carrier without
Curtains and a dome light shall
personnel
positioning
be provided.
The sleeper
themselves or any part of their
compartment shall have heating
body under the spare tire
and air conditioning. Auxiliary
assembly. Threaded fasteners,
air temperature controls or
when used to secure the spare
louvers shall be provided in the
tire assembly in the carrier, shall
sleeper compartment.
The
be constructed of or plated with
controls or louvers shall provide
corrosion resistant material.
for remote regulation of both
The carrier shall be installed in a
heating and air conditioning from
readily accessible location on
within the sleeper compartment.
the vehicle.
STF
STAGGERED FRAME
When code STF is specified, the
SRP
RUSTPROOFING
frame shall be staggered behind
When code SRP is specified,
the cab to lower the height of the
the vehicle shall be rustproofed
rear frame by the amount the
in accordance with FED-STD-
frame was raised to accomplish
297.
the 6X6 conversion.
STA
SPARE TIRE ASSEMBLY
T1
RETARDER-AUTOMATIC
When code STA is specified, a
TRANSMISSION-INTEGRAL
spare tire assembly for the front
When code T1 is specified, a
axle shall be provided. The
hydrodynamic retarder integral
spare tire assembly shall be
with the automatic transmission
identical to those on the axle for
(transmission retarder), shall be
which it is intended. The spare
furnished.
A dash mounted
tire assembly shall include an
switch shall be provided to
inflated spare tire(s) mounted on
activate, modulate, or cut the
the spare wheel(s).
brake augmentation. The switch
shall be marked to indicate its
position.
When active, the
Federal Standard 807M
Page 51 of 65
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