MIL-R-52453C(ME)
b. Be capable of negotiating a 10 percent grade over material offering a rolling resistance of
80 pounds per ton or greater for a total effective grade of 14 percent.
c. Be capable of operating in ambient temperatures of not less than 120° F without
exceeding the engine manufacturer's recommended limits for radiator top tank temperature, engine oil temperatures (sump and gallery) and component manufacturer's hydraulic fluid temperature limits.
3.7 Human factors. The characteristics of the roller shall provide for operation by personnel ranging from the small man clothed, through the large man clothed in accordance with
SAE J833.
3.8 Safety. All reciprocating, rotating, or moving parts of equipment shall be guarded when such parts may be inadvertently contacted by operating and maintenance personnel or otherwise create a hazard. All hot surfaces of equipment, including exhaust pipes and other lines which may be subject to high temperatures, exposed to contact by personnel or which create a fire hazard shall be fully guarded or insulated. Fuel tanks shall be located in a manner which will not allow spills or overflows to run onto engine, exhaust, or electrical equipment. Exhaust or discharges from equipment shall be directed so that they do not endanger personnel or obstruct the view of the operator. Electrical equipment shall be effectively guarded and grounded to protect all persons and objects from electrical shock hazard. Nonfunctional sharp edges, projecting points, and excessive length of fastening devices shall be avoided. The roller shall meet the applicable requirements of the Occupational Safety and Health Administration.
3.9 Sound level. The sound level at the operator's station shall not exceed 85dB(A) when measured in accordance with SAE J919. The exterior sound level shall not exceed 88 dB(A) when measured in accordance with SAE J88 (see 4.3.3.9). Reference level is 20 Pa hereafter within this specification.
3.10 Body and frame. The body and frame shall be of one piece continuous construction or two separate bodies connected at a center hingepoint to provide articulated center hingepoint steering or an integral body and power unit with automotive steering. Rollers built in two sections with a hingepoint for articulation shall have a locking device to prevent articulation during lift and transport operations. A warning plate shall be posted on each side of the roller near the articulation point with the following words: "Articulation locking device shall be on when servicing or transporting this equipment. Caution: No Room for a person in this area when roller is turned." The body(s) shall be fabricated of steel plate and shall be reinforced with internal steel members attached to the body by continuous full length welds. The body shall withstand all forces encountered during performance at maximum load capacity without damage or permanent deformation. Accessible watertight cleanout openings shall be provided on the ballast body. Cleanout openings shall facilitate complete removal of the ballast and total drainage of water.
3.11 Engine. The roller shall be equipped with an industrial diesel engine that is furnished on commercial production rollers and which has been approved as complying with the
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