MIL-T-62110G
3.5.8.1 Receptacles. Three pairs of 115-volt and 230-volt receptacles shall be provided, one pair at the curbside front, one pair at the streetside front, and one pair at the rear of the vehicle. The receptacles shall be recessed within the body and provided with a weatherproof spring loaded cover.
3.6 Turret and derrick. Turret and derrick structural components shall have a calculated design stress, such that the yield point of the materials used is not exceeded by the induced
stress due to the weight of the components plus the stress due to three times the loads specified in 3.3.4. For plastic components, the yield point shall not be exceeded with 6 times the load
specified in 3.7.3 in the baskets. The materials used shall meet all applicable performance requirements specified herein.
3.6.1 Hydraulic turret. The vehicle shall be furnished with a hydraulic motor driven turret. The turret shall have a rotating rated torque capacity of not less than 37,000 pound-feet with a safety factor of 3 for Size 70 vehicles and 21,000 pound-feet with a safety factor of 3 for size 55 vehicles. The hydraulic relief valve(s) shall be set to meet the rated loads specified and to provide the minimum specified torque requirements. All journals, bearings, and drive components shall be oil lubricated. A means shall be provided to rotate the turret in the event of hydraulic failure.
* 3.6.2 Derrick assembly. The derrick assembly shall be of the telescopic type, hydraulically extended and retracted by a hydraulic cylinder. The derrick assembly elevation from stowage position to maximum elevation shall be by means of a hydraulic cylinder. The derrick assembly shall be attached to the rotating turret utilizing self-alining bearing(s) and shaft. Under dynamic conditions, the derrick shall support the specified load placed on the upper head sheave in all extended positions without permanent deformation of any components in or along the derrick or supporting structure. The derrick assembly shall be capable of extending and retracting in all selected positions. The derrick shall be equipped with a head sheave and travel rack. The derrick shall be capable of setting poles up to 55 feet for size 55 vehicles and up to
70 feet for size 70 vehicles. Extension and retraction shall be governed by a hydraulic control lever. Rotation shall be governed by a hydraulic control lever, either separately or in combination with extension and retraction. All revolving components shall be furnished with lubrication fittings. All bushings shall be capable of replacement and shall be provided with lubrication fittings.
3.6.2.1 Derrick construction. The derrick shall be designed, engineered, and constructed of materials that display the minimum weight conducive to the configuration and maximum performance requirements specified herein. The hydraulic lines and other associated parts which are fastened to or inside the derrick assembly shall be positioned for easy inspection, ready maintenance, and possible replacement and shall have maximum protection against damage afforded by the configuration of the derrick assembly. The derrick shall be attached to the turret
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