Serious head injuries result from hydraulic jack accident


By Safety Solutions Staff
Wednesday, 04 October, 2017


A worker who was struck in the head by a portable hydraulic jack in September has sustained serious injuries, according to a Workplace Health and Safety Queensland report.

While he was using the jack to expand a semicircular-shaped metal bracket, it was reported that the bracket dislodged and hit the worker in the face.

It would appear that the jack was placed between two curved surfaces of the metal bracket, which did not provide a stable surface on which it could operate.

The man was found unconscious sometime after the incident occurred.

Over the last five years, 87 workers compensation claims have been accepted relating to hydraulic plant, 15 of which were for serious injuries.

Since July 2016, Workplace Health and Safety Queensland (WHSQ) has been notified of 45 incidents involving hydraulic failure. Of these, 24 resulted in injuries requiring either hospitalisation or medical treatment and two involved portable power jacks.

In March 2017, a Coopers Plains company was fined $125,000 following the death of a worker. The worker was helping to remove a gas strut from a prototype boat rack on a trailer when it exploded, striking him above his right eye and penetrating his skull. Investigations revealed that the company had not developed a safe system of work for manufacturing and fabricating the boat rack and that a risk assessment had not been conducted for installing the struts.

Workplace Health and Safety Queensland also investigated a July 2017 incident involving a portable power jack. A worker had a finger degloved and lacerated while trying to push out an eye bolt using a portable power jack on an LPG tanker. The PCBU took immediate steps to prevent the incident reoccurring and no further enforcement action was taken.

A Workplace Health and Safety Queensland report advised that when using portable power jacks or cylinders:

  • Ensure it is a suitable tool for the job being carried out
  • Always use it in accordance with manufacturer’s instructions
  • Ensure that the entire base of the jack is on a hard, flat surface
  • Ensure that a saddle is fitted to the end of the ram
  • Ensure the entire saddle is in contact with the load
  • Ensure the movement of the cylinder is parallel with the movement of the load
  • Avoid standing in the same line of movement or in close proximity to the jack
  • Ensure a safe system of work is in place and is followed
  • Apply the pressure slowly and check the load often.

It is important to note that load lifting and shifting equipment such as hydraulic jacks or spreaders are not intended to hold a load in place. Once a load is in its desired position, the load must be supported (for example, with a back-up prop) should the hydraulics fail. Never work under or between unsupported loads.

Persons conducting a business or undertaking (PCBUs) must ensure that workers are suitably trained and are competent to operate this type of plant.

PCBUs must also manage the risks associated with workers carrying out work in isolation. A worker may be considered to be working in isolation even if there are other people nearby, for example, a worker carrying out unsupervised work activities in an obscured corner of a factory. PCBUs must ensure that workers carrying out activities in isolation are adequately monitored and supervised.

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