ASWP16 Use of a Mobile Crane to Remove Trees
Step Action
Conduct Tailboard
Conference
Ensure all participants at the work site, including crane
operator and ground persons, are part of the discussion
Instruct how slings are attached and used
Discuss positive locking pins for attachment points on the
crane for devices that could come in contact with the tree
Identify hazards and Drop Zone(s)
5.3 Arborist Work Positioning
Step Action
Ascend to predetermined
work position in tree
Ascend the tree using predetermined climbing techniques or
aerial device (Refer to ASWP03 Climbing trees and or
ASWP11 Aerial Device Operations)
Assess the tree condition throughout the ascending process
to ensure tree is structurally sound for the work that will be
conducted
Secure choker on tree
Ensure there is an agreement between crane operator and
climber for the choker location
Load should lift balanced
Ensure choker positioning will move the load away from
climber when hoisted
Ensure location will consider the load twisting when tension
is applied to the choker
Ensure tree section is structurally sound to support the lift
Ensure that the choker will not move due to bark slippage
If possible, place choker below a branch union
If needed for better control, attach butt and/or guide ropes to
the section to be removed
Consider the location of the tree with respect to the
energized conductor and other obstructions and the
intended lowering location
Determine if multi leg sling rigging is needed to secure the
load
Determine if further rigging to control the load will be
required
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