Wrapping Strain on the lower back when handling Design the spindle to be adjustable. This machines on heavy rolls of plastic wrapping in allows the rolls to be loaded at a suitable process lines awkward and twisted postures, often height and orientation, and eliminates the above shoulder height. This is caused need to lift them. by inappropriate design and positioning Design equipment to help worker load of the roll spindle and by restricted rolls. access. Locate the spindle in an accessible place on the plant. Provide information about how to install the plant in a way that allows adequate access. Power drills Prolonged use of the forearm muscles Design drills to be as light as possible. and wrist caused by a heavy or poorly Design drills with the handle under the balanced drill. of gravity. drill’s centre Exposure to vibration or impact shock Design plant to reduce shock and recoil from hammer drills. vibration. Excessive force needed to grip and Provide a suitable way of holding the tool control the tool to counter the effect of with both hands. vibration and impact shocks. Pliers Pressure to the palm of the hand Design pliers with handles that extend caused by handles that are too short. beyond the palm. Prolonged use of the forearm muscles Design pliers with bent handles so that and compression of the wrist caused the user can maintain a straight wrist. by using pliers with straight handles. Crimping, Excessive force with outstretched Design handles with a grip span of 10 cm clamping and fingers required to grip handles that are or less. cutting tools too wide apart. Chainsaws Excessive vibration. Design to reduce vibration. High force required to handle the Design the chainsaw to be as light as chainsaw. possible, and provide well-placed handles. Chairs Poorly designed chairs that cannot be Follow existing design guidelines for adjusted provide little back support and chairs, and consider how the chair will be cause workers to adopt poor postures used in the workplace. and movements. Workstations that cannot be adjusted Design workstations to be adjustable. result in unnecessary reaching, Alternatively, dimensions should suit as workstations bending and exertion of force. many workers as possible. and other work surfaces
Wrapping machines on process lines Strain on the lower back when handling heavy rolls of plastic wrapping in awkward and twisted postures, often above shoulder height. This is caused by inappropriate design and positioning of the roll spindle and by restricted access. Design the spindle to be adjustable. This allows the rolls to be loaded at a suitable height and orientation, and eliminates the need to lift them. Design equipment to help worker load rolls. Locate the spindle in an accessible place on the plant. Provide information about how to install the plant in a way that allows adequate access. Power drills Prolonged use of the forearm muscles and wrist caused by a heavy or poorly balanced drill. Exposure to vibration or impact shock recoil from hammer drills. Excessive force needed to grip and control the tool to counter the effect of vibration and impact shocks. Design drills to be as light as possible. Design drills with the handle under the drill’s centre of gravity. Design plant to reduce shock and vibration. Provide a suitable way of holding the tool with both hands. Pliers Pressure to the palm of the hand caused by handles that are too short. Prolonged use of the forearm muscles and compression of the wrist caused by using pliers with straight handles. Design pliers with handles that extend beyond the palm. Design pliers with bent handles so that the user can maintain a straight wrist. Crimping, clamping and cutting tools Excessive force with outstretched fingers required to grip handles that are too wide apart. Design handles with a grip span of 10 cm or less. Chainsaws Excessive vibration. High force required to handle the chainsaw. Design to reduce vibration. Design the chainsaw to be as light as possible, and provide well-placed handles. Chairs Poorly designed chairs that cannot be adjusted provide little back support and cause workers to adopt poor postures and movements. Follow existing design guidelines for chairs, and consider how the chair will be used in the workplace. workstations and other work surfaces Workstations that cannot be adjusted result in unnecessary reaching, bending and exertion of force. Design workstations to be adjustable. Alternatively, dimensions should suit as many workers as possible.
Hazardous-Manual-Tasks.docx