Specifications

December 2013
REQUEST FOR PROPOSALS FOR
PURCHASE AND DELIVERY OF HEAVY-DUTY BUSES
RFP SRTA-2014-01
TECHNICAL SPECIFICATIONS
PAGE-16
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passenger area and shall be insulated against both heat and sound. Thermal insulation shall
assure there will be a minimum eighty degree (80
o
) temperature differential between engine
compartment and passenger area
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11.8 Fuel System
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a. The fuel tank shall be a single transverse mounted stainless steel fuel tank 120 gallon
capacity with a usable capacity of 115 gallons. The tank shall be mounted under floor
aft of the rear door and caged within the coach structure for safety and corrosion
resistance.
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b. Tank shall be equipped with an audible signal to indicate when tank is almost full.
Shall be equipped with Emco Wheaton Posi/Lock 105 with dry break, and shall
be provided with hinged spring loaded “Posisnap” P/N 5797511 cap and hinged
access door, or approved equal. Fill rate shall be a minimum of 40 gallons per
minute. Filler neck shall be located on the curb side of the coach.
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c. The fuel tank shall be a bottom draw design, and the fuel tank sending unit is
accessible from underneath the coach.
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d. The fuel tank shall be designed so as to not permit the spillage of any fuel, with
the filler cap properly closed, when the floor of the coach is at any angle from
horizontal through 22 degrees from horizontal in any direction for any period of
time. This shall be accomplished with the fuel tank filled to capacity as defined by
published capacity and whistle cut off point.
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e. Fittings on fuel and oil lines shall be SAE flared or inverted flare type. Fuel filter
and lines shall be installed in such a manner as to avoid excessive heat and fire
hazard. Restriction fittings, if applicable, shall be in fuel return line and of proper
size so as to maintain fuel pressure under all conditions. A swing type check
valve in the fuel supply line shall keep the supply line full of fuel when servicing
filters or when fuel lines are disconnected in engine compartment.
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f. One (1) DAVCO 384 heated remote mount fuel, or approved equal, filter shall be
provide in a location to be approved by the SRTA.
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g. Fuel lines in engine compartment shall be Aero Quip FC350 hose, black, or
approved equal, for the supply and return fuel lines from the engine
compartment bulkhead to the fuel tank.
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h. Underbody fuel lines shall be stainless steel braided Teflon. Lines shall be sized
to meet the requirements of the engine manufacturer.
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11.9 Exhaust System
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a. The exhaust muffler shall be a stainless steel heavy plate type muffler designed
with proper acoustical qualities and tailored to the engine requirements and
installation.
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b. Exhaust pipes shall be constructed of stainless steel metal tubing direct from the
muffler to a location in the upper left rear of the vehicle.