Running a "slasher" (I assume it is a rotary brush cutter often called "Bush Hog " though that is a Common Brand). First, They need to be operated at or very near full engine speed. The blades need to have a specific speed to function and lift the material being shredded. This means the ground speed is regulated by gear selection, not throttle. Start in low gear (slow) and move faster by changing to higher speed gears as confidence and results are gained. Too fast and the engine will labor or results will be ragged. Second, adjust the angle of the slasher so the rear of the swing of the blades (furthest rearward travel of the arc of the tip of the blade) is 12 to 14mm higher than the front of the blade travel. Measured on flat paved surface, with the whole machine on the same surface. This prevents the blade from continuing to cut the same stubble more than once. Third, be willing to cut 1/2 width passes in heavy material. This can assist in a clean job in heavy growth. Fourth, Sharpen the blades to a 1mm edge, not knife sharp. they will cut well and not dull as rapidly. Fifth, Check the gear oil level in the drive gears every time you use it until you are sure it is not leaking, then every 10 days of use or so. Use the correct oil. Sixth, grease the fittings for the universal joints every time it is used for more than an hour. Seventh, Walk the fields or areas you will mow to assure there are no pipes, fence posts, rocks, or stumps sticking up to wreck the slasher. Eighth, Never allow anyone to be near it on the ground when operating, it throws things, and is very nasty Ninth, If it is mounted on the hitch, do not run it when lifted more than 20cm above normal height to avoid damaging the Ujoints in the drive line. Tenth, Do not get off of the tractor until it has stopped turning. Eleventh, There is either a slip clutch or a shear bolt in the drive. Do not use stronger bolts for shear, or tighten the slip clutch. It will break the gears or shafts. Twelfth, Do not drive sideways on hills of more than 15 degrees of slope (conservative, but tipover is not good) Thirteenth, Listen to the machine and carefully notice changes in sound. Things do get wound up on the shaft and can make heat. Balance problems from material stuck on the blades can cause vibration. Stop if change is noticed. Fourteenth, Look behind to assure it is doing its job. Fifteenth, If it is a pull behind type hooked to the draw bar with a pin, do not turn sharp when it is running. Maybe a 12m radius arc, not a tight turn. The Ujoints can not be angled radically. If knocking noise is heard, straighten out. The above is coupled with experiance and prudence to make a good clean safe job well done. Jim
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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