MIL-T-62518 Trucks, Maintenance: With 9 To 37 Meters 30 To 120 Foot Multi-Position Aerial Platform, Modified CommercialThis specification covers diesel and gasoline engine driven, four-wheel, two-rear-wheel drive; four-wheel, four-wheel drive; and six-wheel, four-wheel-drive trucks having minimum gross vehicle weights GVW of 6800 kilograms kg 15,000 to 22 700 kg 50,000 pounds, equipped with maintenance bodies and 9 to 37 meters m 30 to 120 foot multi-position, articulating, boom type aerial platforms. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62518A

3.5.1.3 Cab protector. A cab protector to provide protection from falling objects shall be provided. The cab protector framing shall be covered with expanded sheet steel, of not less than

9 gage (3.793 mm) (0.1495 inch) prior to expansion, and not less than 2290 mm (90 inches) in width. The cab protector shall cover the cab roof, fenders, and vehicle hood. Sufficient space

shall be provided above the cab roof to allow for vehicle cleaning and maintenance.

* 3.5.2 Body mounting. A sub frame shall be provided. The turntable pedestal, outriggers and subframe shall be one integral welded or bolted (or a combination of the two) assembly. The subframe shall conform to the following:

When two outriggers are required or torsion bar stabilizers are required:

(a) The cabinet-loadspace floor mounting shall conform to 3.5.2.2 through 3.5.2.2.3 and

the subframe length shall be at least sufficient to evenly distribute the pedestal and outrigger loads on the chassis frame rails or:

(b) The cabinet-loadspace floor mounting shall conform to 3.5.2.3 and the sub frame shall be the full length of the chassis frame to the rear of the cab.

When four outriggers are required:

(a) The cabinet-loadspace floor mounting shall conform to 3.5.2.2 through 3.5.2.2.3 or to

3.5.2.3, both with a subframe the full length of the chassis frame to the rear of the cab.

3.5.2.1 No welding of chassis frame. No part of the body (cabinets, floor, turntable pedestal, outriggers or subframe) shall be welded to the chassis frame.

3.5.2.2 Flexible mounting for cabinet-floor assembly. The cabinets and the loadspace floor shall be an integral assembly, secured independently of the turntable pedestal and the outriggers to the chassis frame or to the subframe with U-bolts, twin studs or brackets and shall include a wood breaker strip. All but the rearmost cabinet-floor assembly mountings shall be spring loaded to provide for movement of the cabinet floor assembly independent of the subframe, chassis frame, turntable pedestal, and outriggers.

3.5.2.2.1 U-bolts or twin studs. When U-bolts or twin studs are used for mounting the cabinet-floor assembly, there shall, be not less than four U-bolts or twin studs per aide having a

14 mm (0.563 inch) minimum body diameter with a 16 mm (0.625 inch) minimum thread

diameter. Tie-plates shall be at least 13 mm (0.5 inch) thick. The vehicle chassis frame and the subframe shall be braced, using wood blocks, at each mounting point unless the mounting point is located at a full depth crossmember. Blocks shall incorporate a keeper strap or groove for the