Worker Injured While Lifting Water Tank

Safety Alert Type: 
Date of Incident / Close Call: 
Company Name: 
Galena Contractors Ltd.
Details of Incident / Close Call: 

A worker was injured while attempting to attach a water tank, which was mounted on a trailer, to a vehicle so the water tank could be moved to a new location.

The worker was using a jackall to raise the trailer hitch of the water tank so he could attach the hitch to the trailer ball mounted on the back of a vehicle. The worker had jacked the hitch to the required height and had backed the vehicle into position so the hitch could be lowered onto the trailer ball.

The jackall slipped as the worker was lowering the trailer hitch, and the handle struck him on the right side of his head. The worker experienced pain in his head, eye, and jaw. The employee went for medical attention, and there was lost time due to the injury.

Learnings and Suggestions: 

1. Jackalls can be very dangerous if used improperly or if used attempting to lift an object heavier than their
recommended capacity. A Safe Work Practice (SWP) regarding the use of jackalls should been developed by
employers, and the SWP should be circulated, reviewed, understood, and incorporated into practice.

2. It is extremely important to make sure at all times that the reversing catch of the jackall is in the upright position
whenever a load is held. Similarly, the operating handle should always be left in the upright position against the
rack when a load is on the toe.

3. The reversing catch of the jackall must never be released when the operating handle is in the lowered position
because with a heavy weight on the toe of the jack, that handle will almost certainly fly up against the rack. This
shock on the jackall will cause the handle to fly back down again as the pegs take their turn in lowering the load
rather rapidly, and that handle will continue in flying up and down until the load comes off the toe. If you have
lifted a load halfway up the jackall rack, that handle could easily fly in each direction a dozen times in a blur of
speed. The uncontrolled handle can cause serious injuries.

4. Maintain pressure on the jack handle while the load is being lowered – doing so will help ensure that the jack
handle does not spring up, and fly up and down as the load is released from the jackall.

File attachments
2007-10-04 Worker Injured While Lifting Water Tank.pdf
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