KKK-A-1822 E
3.9.3
CAB COMPARTMENT DRIVER AND ASSISTANT SEAT.
Unless otherwise specified (see 6.2-x), the driver's compartment shall be furnished with at least
two individual bucket-type seats (driver and assistant) or, when specified (see 6.2-x), bench
style seating for three. The seats shall be frame constructed with cushioned springs or foam
rubber, padded and upholstered to provide maximum riding comfort. Unless otherwise specified
(see 6.2-x), the seats shall be covered with fire-retardant (per FMVSS-302), washable, non-
absorbent material. Driver's seat shall have the OEM's full, unobstructed range of longitudinal
adjustment, and a minimum of 30 percent of the range of inclination, but not less than the angle
furnished on the chassis manufacturer's standard non-reclining high back seat.
3.9.4
CONTROLS AND OPERATING MECHANISM.
All controls and operating mechanisms shall be located for left-hand drive. Lever controls,
equipment, items, and devices shall be installed, located, and stowed for the convenience
of the purpose intended and shall not interfere with the ambulance personnel or patient's
ingress or egress of respective compartments.
3.9.5
OUTSIDE REARVIEW MIRRORS.
Unless otherwise specified (see 6.2-y), dual, firmly secured, vibrationless, rearview mirrors,
having a combination flat/convex mirror system, shall be furnished. Convex shall be a
minimum 13 cm (5 in.) diameter [appox.130 sq. cm, (20 sq. in.)]. Mirrors shall have the
largest usable reflective area practical for the designed ambulance, totaling at least 806
square centimeters (125 square in.) per vehicle. Unless the mirror assembly is manufactured
as an integral assembly, all four mirror head faces shall be independently adjustable.
Hardware and mirror heads shall be chromed, polished stainless steel, or polished aluminum.
3.9.6
BUMPERS AND STEPS.
Chassis manufacturer's standard chrome bumper shall be furnished in the front of the chassis.
The rear of the ambulance shall be furnished with a sturdy, full-width, rear bumper, with
step secured to the vehicle's chassis-frame. The rear bumper and step shall be adequate to
support a test weight of 227 kg (500 pounds) without flexing. A step shall be furnished at
the back (loading) door opening, if the patient compartment floor is more than 46 cm (18
in.) above the ground. Unless otherwise specified by the purchaser for Class 2 vehicles
(see 6.2-z), the step installation shall be equal distance +/- 5 cm (2 in.) between the ground
and the floor. The bumper-step shall be designed to prevent the accumulation of mud, ice,
or snow and made of anti-skid open grating metal (a folding style step if specified in 3.15.3-
21). These steps shall not be located or exposed to the interior of the ambulance when the
door(s) are closed. All necessary steps shall be at least the width of the door opening for which
they are provided. The step's tread shall have a minimum depth of 13 cm (5 in.) and a maximum
depth of 25 cm (10 in.). If the step protrudes more than 18 cm (7 in.) from the rear of the
vehicle, a foldup step shall be furnished.
3.9.6.1 OVERRIDE FRONT GRILLE GUARD.
When specified and permitted by the chassis manufacturer (see 3.15.3-22), an override protection
(high-rise heavy-duty grille guard) shall be furnished to protect the vehicle grille, siren speakers,
grill lights, radiator, and air conditioner condenser. The heavy-duty grille guard shall be custom
fit to the front bumper and bolted to the vehicle frame. The grille guard shall be of all steel
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