MIL-DTL-82068D
3.7.1.1 Engine and pump mounting. The engine and pump mountings shall be designed
for easy removal and independent adjustment to insure proper alignment of drive mechanisms.
Locking devices shall be designed to withstand vibration.
3.7.1.2 Work platform and railing. A single rear-mounted platform or two side-mounted
platforms shall be provided. Each platform shall feature at least 18 by 40 inches of level tread
area with a non-slip tread surface designed to support two 175-lb personnel engaged in spraying.
Adequate drainage of the tread surface shall be provided. A protective railing not less than 32
inches high shall be provided around the outer edges of the work platform as required for safety
of operation. The railing shall have no dangerous corners, sharp edges, or projections, and shall
not interfere with the operation of the hose reel. The design of the railing shall permit easy
access from the ground to the work platform.
3.7.1.3 Controls. All controls shall be suitably located for safe, effective spraying
operations, and shall be provided with extensions, if necessary.
3.7.1.4 Spray boom mounting. When a spray boom is required (see 3.7.10), a spray
boom mounting device shall be provided on the rear of the sprayer. The mounting frame shall be
constructed so that the boom height from the ground can be adjusted between 18 and 30 inches.
Means shall be provided for rigid attachment of the central section of the spray boom and for
hinged support for the spray boom wings, when hinges are not included as a part of the spray
boom assembly.
3.7.2 Trailer. The trailer frame shall be of all-steel, welded construction, designed to
support the engine, pesticide storage tank, pump, control assembly, work platform, and hose reel
assembly, as an integral operational unit. The trailer shall be provided with a single axle, with a
rating not less than the gross operating load imposed. Wheels shall be provided with roller
bearings. The wheels shall be re-mountable at the hub or rim. Rim ratings shall conform to Tire
and Rim Association (TRA) recommendations for the type and size of tires furnished.
3.7.2.1 Tires and tubes. Tires shall be of tube or tubeless type with highway tread. Tires
shall be of rated capacity not less than the gross operating load imposed on each tire, measured at
each wheel. Tires shall be of not less than 100 level quality. Manufacturer's current size of tires
conforming to specified requirements may be furnished. When tube-type tires are furnished,
inner tubes shall be of the heavy-duty type, and shall be properly sized for the tires furnished.
Tube rim flaps shall be provided for tube-type tires in accordance with TRA recommendations.
3.7.2.2 Drawbar, landing leg, and clevis type hitch. A drawbar, with retractable landing
leg and clevis type hitch, shall be provided. The drawbar shall be either a straight steel tube
tongue, or a steel channel modified A-frame, bolted to the sprayer frame. The landing leg and its
related parts shall withstand, without permanent deformation, the fully loaded combined static
and dynamic forces due to coupling and uncoupling operations. The landing leg shall operate
freely and shall be protected from malfunctioning caused by foreign matter. When locked in the
travel position, the landing leg shall not be subject to accidental release.
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