Abstract: An air cleaning system for a vehicle includes an inertial separator for filtering contaminated air, which then enters a vehicle cooling system positioned to receive the filtered air exiting from the inertial separator, and a clean air diverter positioned to receive a portion of the filtered air and to direct the filtered air to an engine and/or cab. The system may also include a pulley arrangement to increase the speed of a second inertial separator which further filters the air directed to the engine and/or cab.

Abstract: A self-locking portable panel having an impact actuated and self-locking hinge mechanism at one end thereof and a latch at another.

Abstract: A park lock interlock control system preventing the shifting of the vehicle transmission in gear positions when the drive train park lock is engaged. A two part interlock system comprises a park lock control including a crossover shaft and a transmission shift lever connected with a plate having a slot. The shaft projecting through the slot is able to rotate, thereby engaging or disengaging the drive train park lock, only when the shift lever is put in a neutral position, thus preventing an accidental transmission engagement in gear when the park lock is actuated.