MIL-T-62222(AT)
a. Preparation. Prior to the break-in run, except for equipment and component installations and servicing performed by the contractor as a final processing of the vehicle for acceptance, the vehicle shall be completely assembled and all adjustments completed. The vehicle, including all applicable components requiring lubrication, shall be lubricated in accordance with production lubrication chart. The vehicle shall be serviced with fuel conforming to applicable seasonal grades of VV-F-800. Engine oil conforming to the applicable seasonal grade of MIL-L-2104 may be used.
Specific applications by grades or types for various expected seasonal temperature ranges shall be specified. Fuel and water separator and the primary fuel filter shall be bled of air by removing each respective bleed plug and operating the in-tank fuel pump. After air is bled, replace the bleed plugs.
b. Oil pressure and temperature. Prior to the start of the break-in run, the engine shall be operated at 800 to 1200 revolutions per minute (rpm) until lubricating oil is at operating pressure and temperature. If at any time during break-in run the engine has been stopped for at least 30 minutes, the engine shall again be operated, as above, before continuing break-in run. Proper oil pressure and temperature shall be maintained during operation on level ground, 60 percent grades and 30 percent side slopes.
3.3.2.1 Operation and distance. Each vehicle shall be given a break-in run for the distances specified in table I on smooth, level, hard-surfaced roads. The vehicle shall be operated over the undulating section of road (see figure 1) during "a" and "b" divisions of the break-in run in both directions (see 4.6.1).
3.3.2.2 Reverse operation. After each division of the break-in run, the vehicle shall be stopped, the engine allowed to idle for not less than ten minutes, and the vehicle driven in reverse for a distance of not less than 50 feet at speeds between 2 and 7 miles per hour (mph) (see 4.6.1).
3.3.2.3 Condition after run. After completion of the break-in run, the engine shall idle between 700 and 750 rpm. Prior to vehicle being submitted to the Government for acceptance, all suspension wheel bearings shall be checked to determine if adjustments are correct and readjusted, as required. Track fasteners shall also be re-torqued (see 4.6.1).
3.3.3 Fording kit. When specified (see 6.2), the vehicle shall be furnished with a fording kit installed, providing a capability to ford a 96 inch water depth (see 4.6.1).
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