from the 4410 Manual:
A-Start Position - Turn the key to the start position to start the engine. Release the key after the engine has started and it will automatically return to the run position. The engine will continue to run.
B-Run Position - Turn the key to the run position and the engine oil pressure light and battery charging lights should illuminate. You will also hear a clicking noise when the engine fuel shut-off solenoid engages. With the key in the run position, push the key in to activate the intake air heater system.
C-Off Position - With the key in the off position, all switched power is off, and the engine should not run.
So, it's there... If he has a 4400, his machine may have a slightly different process. But I'm sure there's some kind od cold weather starting assist.