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POLE SAW NAMES AND TERMS
OREGON® Cordless Tool System
POLE SAW MODEL PS250
AC 1113 - F/N 563397
POLE SAW NAMES AND TERMS
Alignment flange: The protrusion on the
bar pad that fits into the bar slot.
Automatic oiler: The system that auto-
matically lubricates the guide bar and
saw chain.
Bar pad: The mounting pad on the
cutting head that helps ensure proper
alignment of the guide bar.
Bar slot: The cutout portion of the guide
bar that fits onto the alignment flange
and the mounting stud.
Blade cover: The plastic cover that pro-
tects the guide bar and saw chain when
the pole saw is not in use.
Branch removal hook: A curved metal part
on the end of the cutting head used for
pulling loose limbs from trees.
Bystander safety zone: A ft ( m) circle
around the operator that must remain
free from tripping hazards, bystanders,
children, and pets.
Chain gauge: The thickness of the saw
chain drive link, indicated by the part
number stamped on the drive links.
Chain pitch: The distance between any
three rivets on the saw chain divided
by two, indicated by the part number
stamped on the drive links.
Debris deflector: A plastic trough on the
cutting head that channels dust and
wood chips away from the operator
during cutting.
Depth gauge tool: A tool that, when
placed on top of the saw chain during
sharpening, ensures that the cutting
depth is set correctly.
Drive link: The fin-shaped link of the saw
chain that fits into the groove on the
guide bar.
Drive sprocket: The toothed part that
drives the saw chain.
Extendable shaft: The shaft between the
powerhead and the cutting head that
can be lengthened to reach limbs higher
in trees.
Extension collar: A rotating plastic part on
the extendable shaft that is loosened to
allow extension and tightened to keep
the extendable shaft in place.
File guide: A tool that, when combined
with the proper saw chain file, ensures
that saw chain cutters are sharpened at
the correct angle.
Guide bar: A railed structure that supports
and guides the saw chain. Sometimes
simply called the “bar”.
Harness: A safety device worn by the
operator and connected to the pole saw
that helps distribute the weight of the
pole saw.
Motor housing: The plastic sheath into
which the extendable shaft is fitted dur-
ing assembly.
Pole saw powerhead: A pole saw without
the extendable shaft, saw chain, or guide
bar.
Rear handle: The support handle located
at or toward the rear of the saw.
Saw chain: A loop of chain with cutting
teeth that cuts the wood and is driven by
the powerhead and is supported by the
guide bar. Sometimes simply called the
“chain”.
Side cover: The plastic cover on the cut-
ting head that covers the drive sprocket
and tensioning screw.
Tensioning pin: The metal part attached to
the tensioning screw that fits through the
hole on the guide bar.
Tensioning screw: The threaded part
inside the cutting head that is adjusted to
control the tension of the saw chain.
Trigger lock-out: A movable stop that pre-
vents the unintentional operation of the
trigger switch until manually actuated.
Trigger switch: A device that turns the
pole saw on and off.
Wear parts: Parts such as the saw chain
and guide bar that wear during use and
can be replaced by the user.
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