the mud flap. As an alternate method of
chassis is acceptable. Unless otherwise
attaching the mud flaps, tabs or clips with
specified, the exterior color shall be
minimum surface contact dimensions of
selected by the manufacturer from one of
25 mm (1 in) high by 32 mm (1.25 in) wide
the manufacturer's standard, nonmetallic
by 2.4 mm (0.094 in) thick shall be
light or medium colors. When specified,
furnished at each bolt. All tilt cabs shall
color selection will be made after contract
have rubber mud flaps to the rear of the
award from the standard color charts to
front wheels. All splash shield and mud
be supplied by the manufacturer.
flap installations, front and rear, shall
3.1.1.2
DRAIN PLUGS.
conform to the rear splash and stone
Drain
plugs
installed
in
manual
throw protection provisions of SAE J682.
transmissions, transfer case and rear
The quarter fenders on tractors need
axles shall be of the permanent magnet
extend down only to the height of the
type.
centerline of the rear axle. Splash shields
shall have no advertising or logos, except
3.1.1.3
WOOD TREATMENT.
that of chassis or body manufacturer.
Unless
otherwise
specified,
the
manufacturer's standard wood treatment
3.1.1.6
BRUSH GUARD.
is acceptable.
Soft wood shall be
The 4x4 vehicle shall be equipped with a
pressure
treated
with
a
wood
radiator and headlamp brush guard.
preservative.
Hardwood need not be
When the headlamps are recessed into
treated. When specified, wood shall be
and protected by the front bumper, a
treated in accordance with MIL- HDBK-
headlamp brush guard is not required.
1223.
3.1.1.7
4X4 CONVERSION.
3.1.1.4
TOWING DEVICES.
The chassis manufacturer's standard 4x2
Towing devices consisting of two hooks,
truck chassis may be modified to provide
loops, eyes or pins or the chassis
all-wheel drive conforming to the
manufacturer's standard single center
requirements specified herein if:
mounted eye or pin shall be mounted on
(a) The conversion axle manufacturer
the front of the vehicle. All towing devices
specifically approves and certifies
shall be frame rail mounted or reinforced
that all such modifications meet the
back to each frame rail.
design requirements and standards
of the conversion axle manufacturer.
3.1.1.5
WHEEL SPLASH AND STONE
Certification shall be based on both
THROW PROTECTION.
design analysis and proving ground
Type III stakes, Type IV dumps, Type VII
test reports.
vans, and Type VIII refrigerator vans shall
have rubber mud flaps to the rear of the
(b) The chassis manufacturer's front axle
rear wheels. Type II tractors shall have
rating before conversion is not
rigid quarter fenders to the front of the
exceeded by the conversion axle to
rear wheels and rubber mud flaps to the
be installed.
rear of the rear wheels. Tractor mud flaps
(c) Components used in the all-wheel
and their extension supports shall be
drive conversion are of current
readily removable, to increase landing
production.
wheel clearance, without the use of hand
tools. A metal strip not less than 3.2 mm
(d) Components used in the all-wheel
(0.125 in) thick and not less than 25 mm
drive conversion are approved for the
(1 in) wide, extending the entire width of
conversion
application
by
the
the mud flap, shall be installed to prevent
component manufacturers.
the bolt heads or bolt nuts from damaging
(e) The converted vehicle is certified to
Page 8 of 79
to verify that this 7 4Y
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