![]() So when I grind the tip or the base of the cutter does not hit the grinding disc first but the whole cutter hits at the same time. I then place the grinding disk on the grinder ensuring the nut has been firmly hand tightened.Ģ) I then draw a line from left to right in the middle of my cutter with the same permanent markerģ) I then place the cutter on the pendulum, (ensuring the cutter is on the cutter pendulum setting and not the comb pendulum setting.) I then adjust the pendulum until the cutter line and the grinding disc line, marry up.Ĥ) I then make sure the cutter is sitting flush on the face of the grinder by adjusting the pendulum arm in or out. You cannot go wrong following these instructions.ġ) I draw a line through the centre of my grinding disc with a ruler and permanent marker. This is how I set my grinder up using the 12 Expert Secrets and how I grind other shearers combs and cutters as well. I have followed Phil Jones technique for many years, from who designed the Expert shearing pendulum. Use a wire string to put your cutters on, after the grinding session so they stay the same thickness for the life of the cutter. Your equipment will not sharpen properly and your blades may fly off the pendulum when grinding, creating a hazard If there is a glue bubble in your emery papers change the emery immediately. This will bend the pendulum shaft causing a different angle everytime you grind. Or when the sparks become dull when you grind.ĭO NOT drop your grinding pendulum. A general rule is 20 to 40 combs and 40 to 80 cutters per emery paper. The comb and cutter need to have a hollow grind to enable them to work like a pair of scissors.Ĭhange your emery papers regularly. When you finish grinding the sparks need to be going straight up off the grinding discs. You need to set your grinder up precisely to get the right height and distance from the face of the grinding plate. Here are some major points to consider when grinding your shearing blades. ![]() Just run a long ruler on its edge, over the disc and you will see the convex in the disc. The hollow grind is put into your blades by the shearing discs which are slightly convex giving a hollow grind. When the cutter goes across the top of the comb at speed the 2 blades act like a pair of scissors and cuts the wool as the wool goes between the teeth of the comb. Scissors have a hollow grind and so too does a comb and cutter. It will also make you, the shearer, upset and frustrated with your work.Ī comb and cutter work like a pair of scissors when you are shearing your sheep. It also tears the wool off your sheep instead of cutting the wool, which hurts your sheep. This can cause wrist injuries for the shearer. Sometimes it can feel like you are pushing a loaded dump truck through the wool if it is not cutting properly. There is plenty that can go wrong when sharpening your combs and cutters but unless you know “How To” grind your shearing gear properly you will only make your job shearing sheep that much harder. Your gear is not sharp and no matter what you do it won’t cut the wool properly. If you are not getting a crisp cut through the wool it means your sharpening technique has failed you. Why Won’t My Shearing Blades Cut Through The Wool? The comb and cutter setting on the pendulum is different and you can change the setting on the pendulum very easily. This area has 2 pins and a magnet to keep the comb and cutter from flying off the pendulum when grinding. At the bottom of the pendulum is where you place the comb and cutter to be sharpened. Grinding Pendulum - This hangs from the pendulum holder which is attached to the grinder at the top. You will usually use 2 or 3 cutters to a comb. A cutter does not hold its edge as long as a comb. The cutter emery is 80 micron grit and is finer and takes off less metal. The comb emery is 40 micron grit and is course and will take more metal off quicker and leave deeper grooves in the comb which help the edge last longer. The Clamp is used to hold the discs together tightly when you put new emery papers on your grinding discs.Įmery & Glue - Emery papers are glued to your grinding discs, which in turn take metal off your comb and cutters when sharpening. You put the combs and cutters on the discs to sharpen them. These are plates that you attach to your grinder and rotate at 2800RPM. ![]() The Grinding Discs and Clamp - This will come with your grinder. There are several brands of shearing grinders on the market. The motor turns at approximately 2800RPM. The Shearing Grinder - This is a machine with an electric motor that has 2 shafts either side of the motor. Without the proper sharpening equipment you will never be able to keep your blades sharp enough to cut through the wool. There are several bits of essential equipment you will need to sharpen your blades for shearing sheep. What Equipment Do I Need To Sharpen My Shearing Blades?
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