Health and Safety in Shearing (PDF 917kb) - WorkSafe Victoria

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Appendix 3 Shearing Shed Design NotesThe following Design Notes were produced by theUniversity of Ballarat Shearing Research Team basedon research funded by the National OccupationalHealth & Safety Commission and detailed in“The Ergonomics of Sheep Shearing” (see page 47).52 Health & Safety in Shearing
Number oneCatching pen floorsTraditional designThe traditional design of catching pen floors is a horizontal wooden batten floor.The battens are often oriented perpendicular to the direction of the drag (across thepen) but sometimes parallel to the drag (toward the door).Shearers say that sheep can be more difficult to tip when the battens run across thepen as the sheep can obtain a better grip. In addition dragging the sheep was said tobe more difficult when the battens are across the pen. Although not yet widespreadsome people believe that a slope in the catching pen would be useful.What is the best floor?In a laboratory, several experienced shearers dragged sheep over floors of variousslopes and materials. The dragging forces and coefficients of friction were calculated.The trials included two slopes and five materials.ResultsThe chart shows that thebest floor has only 55% ofthe friction of the worst floor.Adding a slope to the floormakes the job about 10%easier again.Combining a slope and thebest surface means that ashearer will drag 6 kg lessper sheep or about 1200 kgless per day thereforedecreasing the risk of injury.Recommended floorThe best floor tested consisted of:1. Wooden battens running toward the door.2. Slope toward the door of 1:10.WorkSafe Victoria gratefully acknowledgesVIOSH AustraliaUniversity of BallaratPO Box 663Ballarat 3353Tel: 03 5327 9150100%80%60%40%20%0%55%Wood(Parallel)65% 67%Wood(Perpendicular)Plastic(Parallel)74%Plastic(Perpendicular)Friction when dragging sheep100% = worst floor (steel mesh)100%SteelMeshShearing Shed Design NoteHealth & Safety in Shearing 53
Page 5 and 6: Overview1 What this document is, wh
Page 7 and 8: 4.2 Duties of employeesAn employee
Page 10 and 11: 5.3 Practicable risk controlsThe le
Page 12 and 13: 6.2 Sheep pens and gatesHazard or r
Page 14 and 15: The mesh floor of this pen makesthe
Page 16 and 17: In this pen thebattens are parallel
Page 18 and 19: The pen doors are a good design for
Page 20 and 21: 6.6 Wool and press rooms - hazards
Page 22 and 23: Throwing.There is good circulations
Page 24 and 25: 7 Machinery7.1 Overhead gear and sh
Page 26 and 27: 7.1 Overhead gear and shearing plan
Page 28 and 29: 7.3 Grinders (continued)Hazard or r
Page 30 and 31: 7.5 Shearers’ tools and equipment
Page 32 and 33: 7.8 Electrical safetyIn addition to
Page 34 and 35: 8.2 Shearing and crutchingHazard or
Page 36 and 37: 10 Work in heat and cold10.1 Risks
Page 38 and 39: 12 DustsHazard or riskDusts in the
Page 40 and 41: 14 Diseases from animals (Zoonoses)
Page 42 and 43: 16 First aidArrangements for First
Page 44 and 45: 17 Accommodation, amenities andtrav
Page 47 and 48: AppendicesAppendix 1 - Further info
Page 49 and 50: Other publications and sources• A
Page 51 and 52: ItemNo.Machinery12 Before shearing
Page 53: Shearing Health and Safety - Risk C
Page 57 and 58: Number threeRelease chutesTradition

Health and Safety in Shearing (PDF 917kb) - WorkSafe Victoria

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