TM 9-2320-364-102-480 2-34. LOADING AND UNLOADING CONTAINER (72 INCHES (183 CM) TALL) TO PLS TRUCK USING LIFTING FRAME (LF) (CONT).(20)Push in parking brake knob (3) and release parking brakes. Set transmissionrange selector (5) to Drive (D).(21)Move truck forward until lower container locks (23) disengage from lowerfront corner castings (24) approximately 4 to 6 in. (10 to 15 cm).STEERINGWHEEL SHOWNREMOVED FOR CLARITY242353