A ZX330-3ZX330-5G Swing Gearbox that has covered high hours will usually show it through noise on swing, oil weeping past the seals and a drop in swing torque and swing speed. Replacing the whole assembly is faster and more predictable than replacing gears one by one. RITO supplies the complete ZX330-3ZX330-5G Swing Gearbox for standard excavators, tested for backlash and preload before packing.
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