188.8.131.52 Fuel tanks. A fuel capacity of not less than 125 gallons shall be provided. When
more than one tank is furnished, a balance line shall be provided. The filler shall be identified
and arranged for safe and convenient filling from the exterior of the body. The access for the
filler neck shall be located to prevent any accumulation of spilled fuel between the body panels or
shall be sealed to prevent entry of spilled fuel to any point inside the exterior body panels.
3.4.5 Fuel tank protection plate. If the fuel tank extends below the chassis frame, or body
skirt, the tank shall be protected on the underside and at both ends by a steel plate of not less than
12 gage (0.1046 inch) thickness. The protection plate shall provide for drainage of any
accumulated liquids and shall permit access to the fuel tank drain plug. A fuel tank protection
plate is not required if a Federal Motor Carrier Safety Tank is provided.
3.4.6 Transmission. Transmission input torque capacity shall be at least equal to the
maximum torque delivered by the engine.
184.108.40.206 Automatic transmission. Unless otherwise specified, the manufacturer's standard
automatic transmission recommended for the make and model coach shall be provided. The
transmission shall provide required performance under all normal operating conditions and under
all conditions specified herein. The transmission shall include a torque converter.
220.127.116.11 Manual transmission. When specified (see 6.2), the manufacturer's standard
constant mesh manually shifted transmission shall be furnished. The transmission shall provide
at least four forward and one reverse speeds.
18.104.22.168.1 Clutch. The clutch shall have a torque capacity exceeding the maximum
delivered engine torque and shall be the largest capacity clutch offered for the engine and the
vehicle model furnished. Pedal effort required to disengage the clutch shall not exceed
60 pounds. Spring or air assists, when employed, may be attached or incorporated within the
3.4.7 Drive line components. Drive line components shall be adequate to transmit the
maximum delivered torque of the engine, as developed through the maximum gear train
reduction. Propeller shaft guards shall be provided in accordance with Federal Motor Carrier
Safety Regulation 393.89.
3.4.8 Chassis components. Chassis components shall be designed for bus construction.
The body and the chassis shall be of the integral type. Body-on-chassis type construction, bolted
or welded, is not acceptable.