TM-9-2815-205-24 Technical Manual for M113 Engine 6V53 6V53T Download
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WARNING Avoid contact with hot manifolds, pulleys, and other moving parts. Wear proper ear protection when running engine. Failure to comply may result in injury to personnel. 8. Start engine and operate at 2800 rpm, FULL LOAD. Slowly open tube connector (Figure 13, Item 41) and read air box pressure on u-tube manometer scale. NOTE A u-tube manometer measurement is the sum of the displacements from zero of the two columns of mercury. This value is expressed as inches of mercury. For model 5063-5299, air box pressure must be at least 6.1 inches of mercury at 2800 rpm, FULL LOAD with zero exhaust back pressure. For all except model 5063-5299, air box pressure must be at least 39.0 inches of mercury at 2800 rpm, FULL LOAD with zero exhaust back pressure. 9. Stop engine by moving governor stop lever (Figure 10, Item 34) to NO FUEL position. 10. Disconnect nonmetallic tubing (Figure 13, Item 48) from air box drain tube, or fitting, and u-tube manometer (Figure 13, Item 46). 47 48 46 41 MAINT_434 Figure 13. Air Box Pressure Check. TM 9-2815-205-24 0101 0101-13