STARTING THE APU IN EXTREMELY COLD WEATHER (continued)
Starting When Temperature Is -25° to -65°F (-31.70C to -53.9°C)
Open drivers hatch door (p. 2-143).
Open lower rear door (p. 2-137).
Install cover plate (7) into opening of heater vent (8) under projectile rack assemblies (1). Install top of cover plate (7)
first and bottom last. Plate should flex sufficiently to fit over vent opening completely.
Loosen two clamps (2) and remove two caps (3 and 6) from APU compartment wall and personnel heater duct (5).
Install hose (4) on APU compartment wall and personnel heater duct (5) with two clamps (2).