An asymmetrical chute system is for use in a strapping machine of the type for feeding a strapping material around a load, positioning, tensioning and sealing the strapping material around the load. Copies of this patent with color drawings will be provided by the Patent and Trademark Office upon request and payment of the necessary fee. These cut end portions are pushed inward of the side edge portions, and then, the leg portions and inverted portions thereof are fused to the fastener tapes by heating. If the refrigerant and oil separate, at least one of the openings will admit oil into the oil pump unit, to ensure lubricating oil is supplied to the moving parts of the compressor. Mounting means such as a pressure-sensitive adhesive member may be positioned centrally on the plate-like coupling means and adapted to mount the inertial vibration exciter to the member to be vibrated, the mounting means being of a substantially smaller size than the coupling means to leave the periphery of the coupling means free to move.