Log Hauling

Safety Alert Type: 
Log Hauling
6 km south of Port Alberni on the Alberni Highway #4, at ‘The Hump’.
Date of Incident / Close Call: 
Company Name: 
Ward's Contracting Ltd.
Details of Incident / Close Call: 

The main boom on the self-loading logging truck failed as the driver, in the controller’s seat, was preparing to unload his trailer. The boom was near its maximum height and the center of gravity was over the controller’s position. The pin at the base of the boom sheared. The boom wavered out of control, then collapsed and began to fall toward the controller’s position. The controller saw what was happening and managed to move quickly out of the way (to the roof of the cab) to avoid injury.

Learnings and Suggestions: 

The sheared pin was replaced, as well as other pins in the boom that showed any signs of wear. The pin assembly was reinforced by means of plates welded to either side of the assembly to retain the pin as well as retain the integrity of the structure should such a pin failure reoccur. This followed the procedure outlined by other BC operations who have had similar experiences. In addition, in future, once this reinforcement procedure has been completed, visual and magniflux examinations will be performed immediately and every six months thereafter on this and other critically located pins on this equipment.

For more information on this submitted alert: 

Don Wilshere,
Ward’s Contracting Ltd.,
Port Alberni (250) 723-2220

File attachments
2008-03-27 Main Boom Failer While Unloading Trailer.pdf
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