TM 1-1520-238-MTF
4-1
CHAPTER 4. SPECIAL
PROCEDURES
4-1. GENERAL.
This chapter contains special/detailed procedures which
were referenced in Chapter 2.
A. STARTING ENGINES – EXTERNAL PRESSURIZED
AIR SOURCE.
1. External air source – Connected.
2. Pressurized air – Verify available.
3. Engines – Start.
4. GEN 1 and GEN 2 switches – TEST then GEN 1
and 2.
5. EXT PWR/BATT switch – BATT.
6. External power – Disconnect.
7. External air source – Disconnect.
8. Continue with AFTER STARTING APU – Pilot
and CPG (Refer to Chapter 2).
B. MANUAL SERVO DRIFT NULL.
1. SLAVE switch – Press and verify dotted
crosshair is present on selected display (HOD or
HDD).
2. SIGHT SEL switch – TADS.
3. Verify TADS turret slews to fixed forward position
by observing solid crosshair coming to center of
display and cueing LOS centering on cueing dot.
