than 2290 mm (90 in) for Type
assist
in
coupling
to
a
III stakes. The hydraulic tailgate
semitrailer.
for Type VI maintenance/line
H4
COOLANT-PROTECTION-TO50
body shall have a rated capacity
DEG C (-60 DEG F)
of not less than 590 kg (1,300
When code H4 is specified, the
lb) and the tailgate platform
percentage of antifreeze in the
width shall be not more than 4
cooling
system
shall
be
inches wider than the floor
increased to provide protection
width, allowing body recessed
against freezing down to -50° C
lights to be located outside of
(-60° F).
the vertically stowed tailgate.
The tailgate platform shall be of
HF
HIGH FLOTATION TIRES
the ramping type and shall have
When code HF is specified, wide
a depth of not less that 810 mm
base type tires and single
(32 in) exclusive of the ramp.
wheels for front and rear axles
The ramp shall taper down to
shall be provided.
Unless
ground level to facilitate loading
otherwise specified, steel belted
with a wheeled handcart.
radial ply tires shall be provided.
Platform loading area shall be of
Wide base wheels shall be
nonskid sheet steel.
The
interchangeable without the use
tailgate shall have devices for
of an adapter. The front track of
holding the platform in stowed
wide base tires shall be within
position for vehicle travel.
plus or minus 25 cm (10 in) of
Controls shall be mounted
the rear track. Unless otherwise
outside the body on the curbside
specified disc type wheels shall
of the vehicle and shall include
be furnished. When the front
an electric control station with
tires extend beyond the cab
environmentally
sealed
fenders,
rubber
fender
connections, that the operator
extensions extending at least to
can reach easily while standing
the outside of the tire tread shall
on the ground, or riding on the
be furnished.
Under no
platform.
Tailgate operations
circumstance shall the vehicle
shall be hydraulically metered,
maximum
governed
speed
providing for raising, lowering,
exceed the speed rating of any
folding and unfolding without
of the furnished tires or wheels.
manual assistance. The tailgate
shall be operated hydraulically
HTG
HYDRAULIC TAILGATE, FOLD
through an electric driven
UP.
hydraulic pump. The hydraulic
When code HTG is specified,
system shall comply with the
the tailgate shall fold vertically
requirements
in
paragraph
against the rear of the vehicle
3.1.1.10. All hydraulic cylinders
for travel.
Unless otherwise
shall be provided with flow
specified, the hydraulic tailgate
restrictors in the down port of
shall have a rated capacity of
the cylinders to prevent the
not less than 910 kg (2,000 lb)
tailgate from falling rapidly in the
for Types III, VII and VIII. The
event of a hydraulic system
tailgate platform width shall be
failure.
The vehicle ignition
not less than 2130 mm (84 in)
switch or a separate switch in
for Type VII vans and Type VIII
the driver's compartment shall
refrigerator vans and not less
Page 48 of 79
to verify that this 7 4Y
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