MIL-T-62735 Trucks And Truck Tractors: Modified Commercial, General Specification ForThis specification covers general requirements for the classes, models and types of modified commercial trucks indicated in the specification title above and in 1.2 below. This specification is intended only as a document to be referenced in detail specification sheets that must, as a minimum, cover detailed truck body requirements and specify the model and class required from table I.

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MIL-T-62735

chafing and other damage. Size, bracing and reinforcements for the hitch mainframe members and the lift frame vertical and horizontal members shall sustain the loads imposed under severe loading conditions. The hitch shall be removable from the truck.

3.7.10 Snowplow hydraulic system. The hydraulic system shall include a pump, a hydraulic fluid reservoir under the hood or integral with the hoist, controls, cylinder(s), hoses, piping, and all other parts needed for operation. The system shall incorporate pressure relief to prevent buildup of pressures exceeding the rating of any component.

3.7.11 Snowplow pump. Controls for the pump shall be operable by the seated driver. Controls shall be identified in accordance with 3.10.5. The hydraulic pump shall be driven by

the engine fan belt, an electric motor or by the engine crankshaft. Belt driven systems shall have application approval by the chassis manufacturer. Belt and crankshaft driven pump ratings shall

be adequate for continuous duty. The hydraulic fluid reservoir capacity shall be not less than

110 percent of the capacity required to fully operate the system.

3.7.12 Snowplow hoist cylinder. The hoist cylinder shall hoist the plow to provide not less than 200 mm (8 inches) road clearance. The hoisting mechanism, hoist cylinder, and hydraulic system shall hold the plow in the fully raised position while the truck is driven over secondary gravel roads at speeds up to 48 km/h (30 mph).

3.7.13 Snowplow markers. Snowplow markers shall be provided for the street side and the curbside of the snowplow. The markers shall be removable. The markers shall eliminate snowplow position blind spots.

3.7.14 Snowplow hydraulic hoses. Hydraulic lines for the hydraulic cylinder and the pump shall have quick disconnect hose couplings. Hose caps, pump caps and hydraulic cylinder caps or other self-contained means to prevent entrance of contaminants in the hydraulic system shall be provided. Caps shall have a corrosion-resistant security device to prevent loss.

3.7.14.1 Snowplow hydraulic standards. Hydraulic hose shall be single wire braid or double wire braid, rubber covered, conforming to SAE J517. Hose fittings shall conform to SAE J516. The hydraulic system shall incorporate a filtration system conforming to SAE J931.

3.7.15 Snowplow auxiliary lights. The snowplow shall include a set of raised auxiliary dual beam headlights, parking lights, and turn signal lights. Parking and turn signal lights shall use a single light bulb. The lights shall have mounts, adapters and appropriate wiring harness. The system shall have quick disconnect, weatherproof plugs and receptacles. A high beam indicator light shall be provided, readily visible to the seated driver.