Echo CHAIN SAW SAFETY MANUAL - Manual (Page 30)

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WARNING! Be alert for spring poles and stay clear of them during
cutting. A spring pole can spring back suddenly when cut, or when the
wood holding it down is cut away. A spring pole can strike you or deflect
the moving saw chain into your body.
Do not cut a tree in order to drop a tree that has lodged against it. Have lodged
trees pulled down with proper power equipment.
When a log diameter exceeding the bar length is flat on the ground with no room
for an under buck, reach over the log and cut into the side. Then draw the saw
over the top and over buck deeply enough to insert a wedge. Reinsert the saw
and over-buck as far down as possible without letting the chain hit the dirt.
Logs that are flat on the ground, and that are within the saw’s capacity to cut
with one over-buck should be bucked as low to the ground as possible. Keep the
Kick Guard ® device on the bar and use a wedge when necessary to hold the cut
open. Then roll the log with a cant hook or pole to expose the bottom for cutting.
DANGER!
Cutting the trunk of a large tree that has a large root ball can cause the root
ball to fall back into the ground, causing severe or fatal injury. Never allow
anyone to be positioned in or around the root ball or the root ball hole.
BEWARE OF ROOT PLATE
SETTLING!!
LIMBING AND BUCKING
BE ALERT FOR
SPRING POLES