A CAT 326D2 330D2 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 CAT 326D2 330D2 Swing Gearbox for standard excavators, tested for backlash and preload before packing.
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