Re-torque of Lug Nuts after Tire Changes

Safety Alert Type: 
Log Hauling
Location: 
Northwood Pulpmill Road
Date of Incident / Close Call: 
2007-08-17
Company Name: 
Canfor Woodlands
Details of Incident / Close Call: 

On August 17, 2007 a Canfor Pickup was being driven home on the Northwood Pulpmill Road. As the employee was driving the rear driver’s side tire came off the truck. The lost tire continued down the road, rolling into the oncoming traffic lane for approximately 100m then ended up crossing the road and bouncing into the ditch. Luckily no other accidents occurred has a result of the tire rolling into oncoming traffic.

The tire had been changed approximately 3 weeks prior (roughly 2000-3000km since the tire change). The lug nuts had not been re-torqued at any time since the initial tire change.

Learnings and Suggestions: 

After further investigation and discussions with local tire shops, the following actions have been instituted to prevent a reoccurrence in the future:
1.Reinforce with all staff the standard tire shop policy that all vehicles must heve lug nuts re-torqued within 150km after any tire change made at a tire shop.
2.Canfor PG Woodlands has instituted a policy that employees must retorque lug nuts within 25 km of any tire change that has been completed by employees in the bush or on the highway.
3.Reinforce the need for all Woodlands Staff to immediately take their vehicle into the automotive repair shop if vibrations cannot be fixed by retorqueing.

File attachments
2007-08-17 Re-torque of Lug Nuts after Tire Changes.pdf
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