Feller Buncher runaway on steep slope

Safety Alert Type: 
Mechanical Tree Falling
Grand Forks (Knappen Gulch worksite)
Date of Incident / Close Call: 
Company Name: 
Lime Creek Logging Ltd.
Details of Incident / Close Call: 

While working on a slope in excess of 35 per cent, a hydraulic failure occurred causing a Feller Buncher to freewheel out of control for about 20 metres to the bottom of the slope (see photo in attached pdf).

Both travel motors failed at the same time causing this to happen. The buncher was operating in high range due to the inconsistent nature of the slope which ranged from 0-50%.

This hydraulic failure issue has occurred before to others with similar machines.

Learnings and Suggestions: 
  • While cutting on slope in excess of 35 per cent, machines must be operated in LOW range. If left in HIGH range it is possible the machine could run away unexpectedly.
  • Follow operators manual.


For more information on this submitted alert: 

Shawn McIver, Lime Creek Logging Operations lcl.shawn@outlook.com

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