2 ton, multi-fuel engine driven, six-wheel six-wheel drive, military design truck chassis, trucks, and truck tractors.

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MIL-T-46780D(AT)

4.3.1.12 Cramping angle check. To determine conformance to 3.4.9 during testing each vehicle shall be cramped as specified and checked for performance specified.

4.3.1.13 Dump truck check. To determine conformance to 3.4.12, the hydraulic system shall be operated as specified and checked for functional requirements.

4.3.1.14 Drop side cargo body check. To determine conformance to 3.4.13, the sides and tailgate shall be checked for completeness of assembly, proper mounting, and locking.

4.3.1.15 Winch check. To determine conformance to 3.4.14, the winch and controls shall be checked for completeness and proper installation.

4.3.1.16 Wheel balance check. To determine conformance to 3.4.15, the front wheels shall be checked for balance.

4.3.1.17 Wood treatment check. To determine conformance to 3.5, all wood used in manufacturer of vehicles shall be checked for meeting the specification requirements.

4.3.1.18 Undercoating check. To determine conformance to 3.6, undercoating shall be as specified.

4.3.1.19 Painting, marking and data plate check. To determine conformance to 3.7.1 through 3.7.3, the painting marking and data plates shall be as specified or as specified by the procurement document.

4.3.1.20 Servicing adjustment and cleaning check. To determine conformance to 3.8, servicing and adjustments shall be checked for requirements specified, including all stowed material (OVM), as specified in contract and vehicle completely cleaned. On fuel servicing vehicles the tank body piping and components shall be cleaned by flushing as specified.

4.3.1.21 Fuel dispensing filter separator system check (M49A2C). To determine conformance to 3.4.10, the fuel dispensing filter separator system shall be operated (with or without filtering elements and fuses) using number 1 diesel oil or solvent conforming to

P-D-680, and checked for functional requirements (less fuel cleanliness check). When filtering

elements and fuses are used in checking, they shall be replaced with new elements and fuses (slave filters may be sued) after completion of test. The dump valve shall be checked for proper operation.

4.3.2 Control tests. One of the first ten production vehicles of each model, and one per month thereafter, selected by the Government, shall be operated at the place of manufacturer for a distance of not less than 50 miles on hard surfaces roads with designated or simulated highway payload.