3-Pt. Mounted Rotary Bruch Cutter

3-Pt Mounted Rotary Bruch Cutter MISCELLANEOUS EQUIPMENT Miscellaneous I built it to clear brush alongside the road It does a great job says Bill Hoff Nakina Ont about the 3-pt mounted pto-driven rotary brush cutter that he built
    The brush cutter makes use of an automotive differential which belt-drives a 12-in carbide-tipped saw blade and is mounted on Hoff s Massey Ferguson GC2310 TLB Estate Tractor
     The tractor pto drives the axle side of the differential to increase its output speed The differential s output speed is further increased through a belt and pulley system which gives the saw blade a speed of 3 000 rpm s at the tractor s 550 rpm pto speed says Hoff
     My brother gave me the differential and had already taken it apart years ago so I don t know what kind of car it s from I had to weld the axle back together so it would run true I mounted a pulley on top of the differential that s off a 10 hp walk-behind snowblower
    The brush cutter mounts on a frame made from 2-in sq tubing and is raised and lowered by using the tractor s 3-pt hitch system
    Hoff machined a mandrel to hold the saw blade and attached it to a vertical shaft The shaft is secured by 2 pillow block bearings to a 5 by 9-in flat steel plate that s welded onto a length of 2-in sq tubing The sq tubing slides into a receiver hitch that Hoff welded onto the frame
    A 1/2-in threaded rod positioned between the receiver hitch and sq tubing is used to adjust belt tension
    He used a pair of U-joints and 1-in sq tubing to make a 14-in long pto shaft that hooks up to the tractor s original pto The belt and pulleys are protected by an expanded metal guard
    Contact: FARM SHOW Followup Bill Hoff P O Box 147 Nakina Ont Canada P0T 2H0 ph 807 329-5215; bhoff@tbaytel net

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