A recently published Oregon OSHA hazard alert highlights the risks of climbing a digger derrick boom when it is in a rotated position. Access to handholds is adequate when the boom is in a stowed position, but not when it is in a rotated position. In a recent incident, an employee fell when he lost his grip and footing while climbing up to an elevated seat. The boom was not in the forward position.
In addition, the employee did not follow the operator training procedures, which included maintaining three points of contact, using access ladders and steps to climb up and down, and not leaving the seat when there is a suspended load.
The hazard alert recommends that employers do the following to keep their employees safe: