Changing the input shaft on a brush hog gearbox

   / Changing the input shaft on a brush hog gearbox #1  

Rite Products

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We have posted our first How-To on our new, Rite-Products Wordpress Blog and thought we would share it here. It is a tutorial on changing out shafts on an Omni Gear RC-series gearbox (most commonly found on brush hogs and rotary cutters).

Any feedback is appreciated! We will be working to create a database of how-to's for common procedures, so suggestions or requests are very welcome.



To begin, you will need to remove the input assembly.
After removing the retaining bolts from the input cap, use a hammer and chisel to carefully separate the input assembly from the gearbox case.
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Now, you can begin disassembling the input assembly of the gearbox by first removing the inner bearing from the end of the input shaft.
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Remove both retaining rings that hold the input cap to the assembly.
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Then, remove the input cap.
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Now, you can remove the snap rings holding the gearing in place. Using a hammer and appropriate fixture, move the gearing as necessary in order to gain clearance.
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Using a hammer (or press) and the same (or similar) fixture, carefully remove the outer bearing from the input shaft.
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The input assembly should now be completely disassembled. Following the procedure in reverse with your new input shaft will yield you a ready-to-install input assembly.

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With the input assembly fully rebuilt, install the assembly into the gearbox case, making sure to line up the mark on the casting of the input cover as shown.

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Finally, you can install and torque the bolts that hold the input assembly in the gear case.

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