MIL-T-62320C
moisture in the air being dried. The dryer shall have a pre-cooler and a filter to screen out oil and solid contaminants. The dryer shall have an automatic self-cleaning cycle and a thermostatically controlled heater to prevent icing of the purge valve.
* 3.4.11.2 Trailer brake control system. In addition to the components specified in 3.4.11.1, a trailer brake control system shall be furnished (see 3.1.1.7). The trailer brake control system shall include:
(a) Identification of emergency and service lines
(b) Coincident control of trailer brakes with prime mover foot control
(c) Independent hand control for trailer brakes
(d) Prime mover protection valve with dash control and automatic breakaway feature
(e) Trailer stoplight control operable with foot brake and with hand control for trailer
brakes
(f) Two SAE J844 coiled air hoses, not less than 110 inches long, with SAE J318 gladhand
couplers on both ends of hoses. The hoses shall be packaged and stowed in the vehicle tool compartment for shipment
(g) Air connectors, for trailer with SAE J318 gladhand couplers mounted at the rear of the vehicle, located to prevent interference with the trailer
(h) Dummy gladhand couplers with chains
(i) Prime mover only parking brake valve to permit prime mover parking brakes to be
applied while charging the trailer air brake system.
3.4.11.3 Brake controls for use from a towing vehicle. When specified (see 6.2), the vehicle shall be furnished with a system for controlling the brakes from a towing vehicle (wrecker). The installation shall be complete with air brake couplers, a relay emergency valve with
no-bleed-back feature (except when spring applied emergency brake is furnished), and additional
air lines and fittings. The service and emergency couplers shall be mounted on the front in a protected position providing for ready attachment of air hoses from a towing vehicle. The service and emergency couplers shall be identified and provided with dummy gladhand couplers
with chains. The system shall not compromise conformance to any Federal Motor Carrier Safety
Regulation referenced herein or to any Federal Motor Vehicle Safety Standard.
* 3.4.12 Cab. Unless otherwise specified, the chassis manufacturer shall furnish any type of his standard or optional full width cab. When specified (see 6.2), a cab with a forward tilting hood and fender assembly, including tilting and locking mechanism shall be furnished. Cab doors shall be equipped with locks, operable from inside the cab through mechanical linkage, with at least the curbside door equipped with an external, key operated lock. Drip rails shall be installed above the cab doors. When the front tires extend beyond the cab fenders, rubber fender extensions extending at least to the outside of the tire tread shall be furnished.
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