Safety alert 01/2011 - Operating a mini skid steer loader with attachments
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A worker’s lower legs were amputated as he became entangled in the trenching chain whilst removing dirt in front of the trenching attachment with his boot while it was still cutting a trench.
Mini skid steer loaders have dead man controls for the operation of the loader, but this does not stop the hydraulic operation of the trencher attachments.
A crumber bar was fitted to the trenching attachment; this guards the front end of the trenching chain when cutting shallow trenches. At the time of the incident this guard was located in a raised position not covering the trencher cutting chain.
- The manufacturer’s safety instructions requiring a restricted zone around the trencher attachment when in operation were not followed.
- The crumber bar was not engaged which may have reduced or prevented the incident.
- The mini skid steer loader is not fitted with foot pressure sensors, or other controls, to stop the attachment moving parts when operators exit the operators’ platform.
- Engage controls such as a spotter to ensure people, including the operator, do not approach the attachments whilst the machinery is in operation.
- Ensure that every dangerous part of powered mobile plant is, as far as is practical, securely guarded in accordance with regulations.
- Fit an auxiliary hydraulic shut off to all mini skid steer loaders if rotating attachments are to be fitted.
Manufacturer’s operational manual for hydraulic control systems or Contact Dingo Australia.
Information on safe guarding of machinery and plant can be obtained from WorkSafe’s website.
This Alert contains safety information following inquires made by WorkSafe about an incident or unsafe practice. The information contained in this Alert does not necessarily include the outcome of WorkSafe’s action with respect to an incident. WorkSafe does not warrant the information in this Alert is complete or up to date and does not accept any liability to any person for the information in this report or as to its use.
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