A standard excavator that swings or travels slowly, whines under load or leaks oil from the swing reduction hub is usually telling you the CAT 320D2 320GC Swing Gearbox has reached the end of its service life. Worn planet gears, a scored ring gear and a failed bearing set all waste torque before it reaches the track or the upper structure. RITO supplies this CAT 320D2 320GC Swing Gearbox as a ready-to-fit assembly, so the machine is back to full swing torque and swing speed without a rebuild.
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