The present invention relates to a forklift having a traversing carriage for moving longitudinally along a frame of the forklift, an outer guide rail for guiding the carriage being disposed relatively low to the operator cockpit so as to minimize the obstruction of operator visibility of the surrounding terrain. Essentially, the present invention extends the benefits of wireless voice and data services to subscribers having a need to move within a plurality of localities such as business and hospital campuses. At least individual chambers or groups of chambers are assigned dedicated supply valves, in order to drive the chambers independently individually or in groups.