Also review it regularly to make sure that you continue to do all that is reasonably practicable to control the vibration risks. Even if it appears that nothing has changed, you should not leave it for more than about two years without checking whether a review is needed.
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If you answered 'yes' to any of the questions in the section 'Do you have a vibration problem? To carry out your risk assessment you will need to identify whether there is likely to be a significant risk from hand-arm vibration.
It is important during this whole process to discuss hand-arm vibration with your supervisors, employees and the trade union safety representative or employee representative. You will need to develop and agree a policy for managing vibration risks which will provide reassurance to your employees about their job security and to explain why co-operating with your risk control measures and health surveillance programme will be in their best interests.
If there is likely to be a risk you need to assess who is at risk and to what degree. The risk assessment needs to enable you to decide whether your employees' exposures are likely to be above the EAV or ELV and to identify which work activities you need to control. You could do the risk assessment yourself or appoint a competent person to do it for you.
The person who does the risk assessment should have read and understood these pages, have a good knowledge of the work processes used in your business and be able to collect and understand relevant information. They should also be able to develop a plan of action based on their findings and ensure it is introduced and effective. They will need to:.
Group your work activities according to whether they are high, medium or low risk. Plan your action to control risks for the employees at greatest risk first. Your rough groupings could be based on the following:. Employees in this group are likely to be above the exposure limit value set out in the Regulations. The limit value could be exceeded in a much shorter time in some cases, especially where the tools are not the most suitable for the job. Employees in this group are likely to be exposed above the exposure action value set out in the Regulations.
The rough groupings described above should be enough for you to do a basic risk assessment which will enable you to decide whether exposures are likely to exceed the exposure action value and exposure limit value and to allow you to plan and prioritise your control actions effectively. For further information see 'Control the risks'. Alternatively, you may choose either to use available vibration data or to have measurements made to estimate exposures if you want to be more certain of whether the risk is high, medium or low.
A more detailed exposure assessment may help you:. You may be able to get suitable vibration data from the equipment handbook, or from the equipment supplier. See Table 1 for examples of vibration levels HSE has measured on equipment in use. There are also some databases on the internet which may have suitable vibration data. If you plan to use the manufacturer's vibration data you should check that it represents the way you use the equipment see 'Duties of manufacturers and suppliers' since some data may underestimate workplace vibration levels substantially.
Ask the manufacturer for an indication of the likely vibration emission of the tool when your employees are using it. If you are able to get vibration data from the manufacturer which is for common tools reasonably representative of the way you use the equipment, it should be suitable for you to use in estimating your employees' exposure. You also need to check, by observing them, how long employees are actually exposed to the vibration ie the total daily 'trigger time' with the equipment operating and in contact with the employee's hand s.
Employees are unlikely to be able to provide this information very accurately themselves. You could observe and measure the trigger time over, for example, half an hour and then use the result to estimate the trigger time for the full shift. Alternatively, where the work task is repetitive, e. If the employee is exposed to vibration from more than one tool or work process during a typical day, you will need to collect information on likely vibration level and 'trigger time' for each one.
Once you have collected relevant vibration data and exposure times you will need to use an exposure calculator to assess each employee's daily exposure. Alternatively, you can use the simple 'exposure points' system in Table 2 to estimate the daily exposure. If you want to obtain vibration measurements for your own tools you will need to arrange for a competent person to carry out measurements for you using specialised equipment. Measurement results can be highly variable, depending on many factors, including the operator's technique, the condition of the work equipment, the material being processed and the measurement method.
The competence and experience of the person who makes the measurements is important so that they can recognise and take account of these uncertainties in producing representative vibration data. Tool and machine manufacturers are obliged by the Supply of Machinery Safety Regulations as amended to design equipment which will reduce vibration risks to as low a level as possible, making use of the latest technology.
The equipment should be CE-marked to show that it complies with these requirements, and health and safety information should be provided in the user instructions. A hunter once prepared a huge overload in a muzzleloading shotgun, taking up a full third of the bore. Three benches down from me, a roaring flame leaped skyward. To his good fortune, the container was a plastic bottle with a wide mouth.
The result was not an explosion, but a Roman candle of grand performance. The experience, however, was major. Smoking around gunpowder is asking for trouble. Remember also to screw the cap back on a powder container after use. Improper Maintenance — Allowing a fired bore to go unattended, especially in areas of high humidity, causes ferric oxide damage — rust, in other words. One of the problems of bore rust is bullet seating.
Vibration risk assessment
A rough bore may retard seating a bullet on the powder, leading to a short start. A man charged a company with negligence when the nipple of his rifle blew back into his face. Inspection proved that the nipple had been fully seated. It completely stripped the threads in the nipple seat. The shooter admitted that it had been many shots since he scrubbed the bore or the nipple seat. The smart airplane pilot does a pre-flight check before taking off in his bird. The smart shooter does the same with his firearm. Maintenance goes to powder as well as guns.
Store all powders in a dry place away from any flame source. Percussion Caps and Primers — Johnny Curious decided to see what would happen if he placed a few percussion caps on the electric stove burner. He turned on the stove and found out. One exploded cap flew right into his eye luckily, not the pupil.
The name is fictitious; the event is not. Percussion caps and primers are best stored in their original containers, special cap boxes or cappers until properly installed for ignition. Any powder has the potential to ignite from a terrific blow, as with a sledge hammer. That Sneaky Old Latent Spark — There is no proven case of a latent spark setting off a powder charge in a breech that I know of, and I have looked.
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Every blackpowder hunter knows that after taking a shot at game, you reload pronto. When questioned further, he admitted that he was very excited, spilled some powder from the muzzle to the ground, poured in more and was not really sure if the rifle was capped.
The real culprit here was muzzle direction. With the muzzle pointed in a safe direction, even if the gun goes off, no one gets hurt. So the real warning here is not about latent spark. Subscribe today to have GunHunter delivered to your home. Buckmasters entertains and educates deer hunters with current strategies and technology from the most respected experts in the field.
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Current Articles Archives Search. Play It Safe with Your Muzzleloader. Use only blackpowder or approved blackpowder substitute in your muzzleloader. Consider the source of information.