TM 10-3930-664-10 KEY CONTROL OR INDICATOR FUNCTION 6 Steering Wheel Controls the direction of travel.  Turn the wheel clockwise to steer right.  Turn the wheel counterclockwise to steer left. Depress the button to sound horn.  Horn is disabled when main 7 Horn Button lighting switch is in either blackout position. CAUTION 8 Cold Start Push Button Aid   for   cold   weather   starting.      Pushing   the   button   releases   a   measured amount of ether into the engine’s intake manifold. Use the COLD START push button only while cranking the engine.  Use only for starting a cold engine.  Failure to follow this procedure could cause engine damage. 2-3