TM 1-1520-238-MTF4-1CHAPTER 4. SPECIALPROCEDURES4-1. GENERAL.This chapter contains special/detailed procedures whichwere referenced in Chapter 2.A. STARTING ENGINES – EXTERNAL PRESSURIZEDAIR SOURCE.1. External air source – Connected.2. Pressurized air – Verify available.3. Engines – Start.4. GEN 1 and GEN 2 switches – TEST then GEN 1and 2.5. EXT PWR/BATT switch – BATT.6. External power – Disconnect.7. External air source – Disconnect.8. Continue with AFTER STARTING APU – Pilotand CPG (Refer to Chapter 2).B. MANUAL SERVO DRIFT NULL.1. SLAVE switch – Press and verify dottedcrosshair is present on selected display (HOD orHDD).2. SIGHT SEL switch – TADS.3. Verify TADS turret slews to fixed forward positionby observing solid crosshair coming to center ofdisplay and cueing LOS centering on cueing dot.
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