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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 - 65 - 66 - 67 - 68

MIL-T-62735

3.3.14.2 Tire standards. All tires and tire ratings shall conform to the Tire and Rim Association or to the European Tyre and Rim Technical Organisation recommendations. Ratings shall be for vehicle speeds up to the vehicle's actual maximum geared speed (and in addition, up to a speed at 32 km/h (20 mph) with the pusher up for up to class 76, model 8x4 and 8x6).

3.3.14.3 Tire type. Unless otherwise specified (see 6.2), tires shall have highway tread on 4x2, 6x4 and 8x4 models and nondirectional mud and snow tread on 4x4, 6x6 and 8x6 models. Unless multi-piece rims are permitted (see 3.3.14), tires shall be of the tubeless type. Unless otherwise specified, tires may be of low standard or profile on 4x2, 6x4 and 8x4 models. Unless otherwise specified, tires shall be of standard profile on 4x4, 6x6 and 8x6 models. When specified (see 6.2), tires shall be of low profile. Tires shall be the steel belted radial type.

3.3.14.4 Carrier for spare tire assembly. When specified (see 6.2), the vehicle shall have a spare tire carrier. The carrier shall be in a readily accessible location. Threaded fasteners on the carrier shall be corrosion-resistant. The carrier design shall enable safe removal or mounting of a spare wheel assembly using only the tools specified in 3.3.30. The carrier shall enable the safe removal and installation of the spare tire assembly from and to the vehicle and carrier without personnel positioning themselves or any part of their body under the spare tire assembly. When a carrier is specified for truck tractors or dump trucks, the carrier shall be vertical, behind the cab and above the chassis frame (CAUTION: See 6.5).

3.3.14.5 Spare wheel or rim. When specified (see 6.2) or when a spare tire assembly is furnished, a spare wheel or rim shall be installed in the spare carrier or, on vehicles without a carrier, stowed securely on the vehicle for shipment. The spare wheel or rim shall be the same size as those on the front axle.

3.3.14.6 Spare tire assembly. When specified (see 6.2), an inflated spare tire on a spare wheel or rim shall be installed in the spare carrier or, on vehicles without a carrier, stowed securely on the vehicle for shipment. The spare tire shall be of the same size, tread design and load range as those furnished on the front axle.

3.3.15 Brakes. The vehicle shall have brakes at all wheels. Brake linings shall be of nonasbestos material except on single rear axles rated at more than 10 430 kg (23,000 pounds) and on tandem rear axles rated at more than 20 900 kg (46,000 pounds ).

3.3.15.1 Hydraulic brakes. Unless otherwise specified (see 3.3.15.2), class 21 and smaller vehicles shall have power hydraulic brakes, except for truck tractors and other trucks with a trailer brake control system, which shall have full air brakes.