| The gearbox has a 3:1 gear
ratio and is protected by the shear-pin PTO drive. The gearbox features
tapered roller bearings and spring loaded seals. The gearbox has a 5
year limited warranty. The model 300 digger is built for years of
trouble-free work with a minimum amount of maintenance.
NOTE: Most tractors of this size have lift arms
made of 7/8 inch diameter (Cat. 1) pins, but with the 20 inch Cat. 0
spacing. Tractors with very short lift arms made for 5/8 inch diameter
pins may not be suitable for digging post holes. (Special 5/8 inch
diameter pins are available for those tractors that can handle the post
hole digger.
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