Working Techniques; Pruning - Efco PTX 2710 Manuel D'utilisation Et D'entretien

Working Techniques

Unusual Hazardous Working Techniques Conditions
WARNING: Do not work during periods of high wind or heavy precipitation.
WARNING: Never cut, when visibility is poor or in very high or low temperatures or in freezing
weather.
WARNING: Do not cut near electrical wires or buildings. If the tree makes contact with any utility line,
the utility company should be notified immediately.
WARNING: Check the tree for damaged or dead branches that could fall and hit you during
working.
• Carefully plan your pole pruning operation in advance.
• Clear the work area. You need a clear area all around the tree so you can have secure footing.
Look for decay and rot. If the branch is rotted, it can snap and fall toward the operator.
Make sure there is enough room for the branch to fall. Maintain a distance of 2-1/2 tree lengths from the nearest
person or other objects. Engine noise can drown out a warning call. Remove dirt, stones, loose bark, nails, staples,
and wire from the tree where cuts are to be made.
Pick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree,
and make sure there are no obstructions in your planned path of retreat.
WARNING: Never turn pole pruner upside down to undercut. The pole pruner cannot be controlled in
this position. Always make your first cut on the compression side of the branch. The compression
side of the branch is where the pressure of the branch's weight is concentrated.

Pruning

• Be alert for springback. Watch out for branches that are bent or under pressure. Avoid being struck by the branch
or the pole pruner when the tension in the wood fibers is released.
• Keep a clear work area. Frequently clear branches out of the way to avoid tripping over them.
WARNING: Never climb into a tree to limb or prune. Do not stand on ladders, a log or in any position
which can cause you to lose your balance or control of the pole pruner.
Pruning Operation (Fig. 52)
• When pruning trees it is important not to make the flush cut next to the main limb or trunk until you have cut off
the limb further out to reduce the weight. This prevents stripping the bark from the main member.
• Underbuck the branch 1/3 through for your first cut, your second cut should overbuck to drop the branch off.
• Now make your finishing cut smoothly and neatly against the main member so the bark will grow back to seal the
wound.
OPERATION
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