MIL-B-62152 Bus, Motor: Ambulance, Intercity, 40 Passenger, 6X2 Or 6X4This specification covers a six-wheel, four- or two-rear wheel drive, diesel engine driven, intercity type motor bus ambulance, having a seating capacity for 40 adult passengers for long distance transportation. The bus has features to allow ready conversion to accommodate 18 litter patients, the driver, and four seated attendants. Except for customized ambulance conversion features, vehicles procured under this specification are commercial items. Frame and all chassis components, heating and air conditioning equipment shall be commercially available items. The vehicle shall be warranted as specified in the procurement documents.

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MIL-B-62152A(AT)

3.4.13 Electrical system. A 12-volt, 24-volt, or combination 12-volt 24-volt electrical

system shall be furnished. The electrical system shall be in accordance with Federal Motor

Carrier Safety Regulations 393.27 through 393.31 and 393.33.

3.4.13.1 Lighting. All vehicle lights, reflectors and wiring shall be as specified herein

and shall conform to Federal Motor Carrier Safety Regulations 393.12, 393.19, 393.20, and

393.23 through 393.26. Lights and reflectors shall not be mounted on rub rails (unless recessed

and fully protected) or the vehicle bumpers. An illuminated rear license plate holder shall be

provided. Engine compartment illumination consisting of four light fixtures connected to one

switch shall be provided. Fixtures shall be placed so as to provide uniform compartment

illumination.

3.4.13.2 Turn signals. Turn signal lamps shall conform to SAE J588. Operating units

shall conform to SAE J589, class A, and shall be mounted on the steering column. The vehicle

shall be provided with single-faced front signal units and single-faced rear signal units installed in

accordance with SAE J588. Turn signal operating units shall be self-cancelling type with visible

and audible flash indicator. An additional set of armored type amber turn signals, mounted on

each side of the bus above the front wheel wells, shall be furnished.

3.4.13.3 Interior lighting. Interior lighting shall include overhead lights for general

illumination, reading lights and litter lights. Fluorescent light fixtures providing equivalent

illumination may be used in lieu of bulb-type fixtures. Fluorescent fixtures, when used, shall be

equipped with radio interference suppression devices. Master control on-off switches to

simultaneously control the interior lighting shall be provided at both the front and the rear of the

vehicle for use by the driver and the attendants, respectively. Separate master switches shall

provide on-off control of the entire reading and overhead lighting circuits and entire between-tier

lighting circuit.

3.4.13.3.1 General illumination. General illumination shall be provided by 12 light

fixtures mounted in the ceiling or overhead duct. Six of the fixtures shall operate from both

12-volt and 110-volt supply and six shall operate from 110-volt supply only. Three-way on-off

switches shall be provided at the front and rear of vehicle for the 12 fixtures.

3.4.13.3.2 Reading lights. Individually controlled reading lights shall operate from

12-volt dc and shall be installed in the ceiling over each seat, with all seats in place for the

40 passenger configuration. With all reading lights on, the illumination on an eleven by sixteen