APU STARTING IN EXTREMELY COLD WEATHER
To avoid damaging radio components, turn off all
electrical and radio switches before starting the APU.
Before you start the APU in extremely cold weather
(0° to -65° F), refer to LO 9-2350-267-12 for:
- Engine crankcase oil grade and level
- Chaincase oil grade and level
- Hydraulic oil grade and level
Change oil as necessary
When operating in extremely cold weather, make sure
winterization kit has been installed.
When temperature is below -25° F outside, preheat APU
compartment (p 2-225) prior to APU starting.
Starting When Temperature is 0° to -25° F
To avoid excessive demand on batteries, do not crank
engine longer than 1 minute at a time. Do not attempt
to atart APU for longer than 5 minutes total. If APU
does not start In 5 minutes, notify Organizational Maln-