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|  MIL-T-46780D(AT)
4.3.2.1 Test failure. If the vehicle selected fails to comply with the requirements
specified herein it will be cause for Government refusal to continue acceptance of vehicles until
evidence has been provided by the contractor that corrective action has been taken to eliminate
the conditions.
4.3.2.2 Special kits check. To determine conformance to 3.3.1 through 3.3.1.7, a specific
kit when furnished shall be installed on vehicles, and checked for proper installation or
interference with other components. When installation of kits require permanent change in
vehicle configuration or adaption, such as weldments, drilled holes, metal cutouts, etc., prior
approval must be obtained from the Procuring Contracting Officer. When testing Arctic Kits,
3.3.1.2 and 3.3.1.2.1, for conformance the Carbon Monoxide Concentrations must be measured
and comply to levels cited in Materiel Test Procedure 2-2-614 (see 4.3.2.8.6).
4.3.2.3 Stowed material check. To determine conformance to 3.3.6 all manufacturer and
depot installed OVM shall be stowed on the selected vehicle. All items shall fit in the spaces
provided. The equipment shall be removed after the check. The OVM used shall be of the latest
configuration available to the contractor.
4.3.2.4 Fuel tank body and piping leak test (M49A2C). To determine conformance to
3.3.7, after the 50 mile road test, each compartment and all joints and piping shall be tested for
leaks by the air and bubble method (see 4.3.1.7) and as follows:
Using the vehicle fueling equipment, one tank compartment shall be filled with
600 gallons of number 1 diesel oil, or solvent conforming to P-D-680. All welds adjacent
to the tank compartment and the emergency relief valve shall be examined for leaks. The
compartment shall be emptied, and, the same procedure shall be repeated on the other
tank compartment. During tests, all piping and valves shall be checked for leaks and
function. Leaks shall be corrected by rewelding or tightening. On completion of repairs
unit shall be retested in accordance with the above procedure.
4.3.2.5 Catwalks functional tests. To determine conformance to 3.3.8.7 vehicle shall
have a set of bows, covers, and end curtains installed, and checked for interference, ease of
installation, resemblance on the cargo trucks, and ability to withstand lifting stresses.
4.3.2.6 A-frame power take-off, winch operational and lifting test (M756A2). To
determine conformance to 3.3.9.4.1 and 3.3.9.9, with the A-frame winch and all controls
including the rear power-take-off installed on the vehicle the winch, all controls and A-frame
shall be functionally tested for lifting and transporting the specified load. Any loosening or
shifting of components shall constitute a failure of this test.
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