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Beyond the Bale : June 2011
20 20 selling more wool September 2010 Beyond the Bale June 2011 Beyond the Bale 20 on-farm a well maintained handpiece will increase shearing tallies. eight out of ten shearers could make more money just by giving their handpiece, combs and cutters a little more attention. “A well maintained handpiece with sharp combs and cutters will increase tallies and make the job easier,” s ays world champion shearer, and shearer trainer, Shannon Warnest. “But an estimated 80 per cent of professional shearers don’t get a true cut.” AWI has worked with the industry’s best shearing contractors and trainers to produce a poster “Are you getting a cut?” The poster shows how the professionals keep their handpieces in good working order and their combs and cutters sharp. Straight-forward diagrams like the one opposite show you how to set the right pendulum height for grinding your gear. When the pendulum is set up correctly, the included angle on the disk puts a hollow in the combs and cutters, so you get a scissor action and the best possible cut. The “Are you getting a cut?” poster is backed up by two other AWI posters: “The Five Pillars of Shearing” and “The Four Pillars of Woolhandling” . All three posters are laminated and ready to display in the woolshed. Make sure you’re not one of 80 per cent not getting a true cut. Call the AWI Helpline on 1800 070 099 to order your free set of “pillar posters” for your own shed, or the next shed you’re heading to. The “pillar methodology” is used by preferred Registered Training Organisations (RTO) in each state delivering AWI-funded shearing industry training. AWI is funding training for ‘improver’ and professional shearers, as well as for novice and improver wool handlers. To find out more about the AWI training program and/or government-funded training initiatives, please contact AWI’s preferred training provider in your state - see table below. More information: AWI Helpline on 1800 070 099 fast facts l An estimated 80 per cent of professional shearers could get a better cut by using better maintained handpieces with sharp combs and cutters. l AWI has produced a poster showing how to keep handpieces in good working order and combs and cutters sharp. l AWI funds training for ‘improver’ and professional shearers, as well as for novice and improver wool handlers. Want a better cut? Radial Line Pendulum Gap approximately a match head thickness between tip and disc at set up Align bottom pressure bar with the radial line at the finish point to set the pendulum height Cutter face square to disc at set up Pin Comb Comb Set Up Cutter Set Up Bottom pressure bar Disc Disc Pin Pendulum Pendulum When changing emeries, first remove all old glue. Changing emeries regularly will increase tallies. Do not use stones to restore emeries. Radial Line Pendulum Check that sparks are flying straight up at the finishing position. Make sure that the pendulum shaft is straight and has not been damaged. Maintain even pressure throughout grinding; especially when you pause just before removing comb or cutter. What does it look like? What is the included angle? The face of the disc is flat. However, there is a slight fall from the inside to the outside. At right angles to the centre, there is a high point. The scissor action is created when the leading edges of the cutter move across the comb. Gear & Cut Entry Grip Freehand Position THE FIVE PILLARS OF SHEARING ARE YOU GETTING A CUT? Draw a radial line across the paper with a straight edge through the centre of the grinder shaft. Line up the pendulum’s bottom pressure bar with the radial line at the finish point. Check that: The direction of the sparks will show if pendulum settings are right. 1. 2. 3. 4. SETTING PENDULUM HEIGHT HORIZONTAL PENDULUM SETTINGS TAKE HOME MESSAGE DON’T SKIMP ON EMERY PAPER TIPS FOR GRINDING • Make sure grinder is in a safe position (secure, clear, well-lit). • Check that safety guards are in place. • Always wear protection glasses and ear plugs when grinding. • Regularly check the length of the positioning pins on your pendulum. THE INCLUDED ANGLE DISCLAIMER: The information provided in this publication is general information only. No person should act on the basis of the contents of this publication before obtaining specific, independent professional advice. Australian Wool Innovation Limited will not be liable for any loss, damage, cost or expense suffered by a person arising from the person’s reliance upon the contents of this publication. Spread glue evenly, as lumps can affect sharpening. When the disc is hot, latex glue dries quickly and leaves ridges that make sharpening harder. So: 1. 2. Make sure combs and cutters are clean and dry before you sharpen. It’s advisable to use pendulums produced by the same manufacturer of the combs and cutters that you use. Slight differences between pendulums can have adverse affects on your ability to sharpen. 1. 2. OVERVIEW A well maintained handpiece with sharp combs and cutters will increase tallies and make the job easier. It’s estimated that over 80% of professional shearers do not get a true cut. Make sure you are not one of the 80%. 1. 2. The included angle puts a hollow in the combs and cutters, so you get a scissor action.This only happens if pendulums are set-up correctly. Why is it there? TAKE HOME MESSAGE Cutter Comb Hollow Scissor action is created when the leading edges of the cutter move across the comb. Why a hollow? When you tighten the tension nut, it presses on the tip and heel of the cutter The hollow also cuts down on heat caused by friction 1. 2. • the pendulum isn’t damaged (shaft, pressure bar and positioning pins) • the face is clean if possible, change emeries when it is cool (early morning or evening) otherwise, cool disc in fridge or water and then thoroughly clean and dry it before applying latex glue • • STATe TRAInIng PROvIdeR COnTACT PHOne NSW TAFE NSW – Western Institute Ian Chapman (02) 6840 2121 Western Australia CY O’Connor College of TAFE (Northern Region) Stephen Madson 0409 080 243 Western Australia Great Southern TAFE (Lower Southern Region) Peter Young (08) 9892 8840 Victoria SCAA Graham Shearer 0427 435 244 South Australia TAFE SA - Regional Bob Reid 0427 604 255 Queensland QRITC Barbara Bishop 1800 337 709 Tasmania Primary Employers Tasmania Richard Leahy 0438 265 753 awi sHearing anD wool-HanDling training ProViDers setting PenDUlUm HeigHt 1. draw a radial line across the paper with a straight edge through the centre of the grinder shaft. 2. Line up the pendulum’s bottom pressure bar with the radial line at the finish point. 3. Check that: • the pendulum isn’t damaged (shaft, pressure bar and positioning pins) • the face is clean. 4. The direction of the sparks will show if pendulum settings are right.