Pole Saw Names And Terms - Oregon PS250 Manuel D'instructions Original

Pole Saw Names and Terms

Alignment flange: The protrusion on the bar
pad that fits into the bar slot
Automatic oiler: The system that
automatically 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 protects
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 30 ft (9 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
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Pole Saw Names and Terms
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 during 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 cutting
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
prevents 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
Pole Saw Model PS250