Tensioning; Sharpening The Saw Chain - Oregon PS750-091 Manual Original De Instrucciones

Tensioning

IMPORTANT: Only tension the saw chain
when the chain is cool. A hot chain may
contract and damage the guide bar or chain
as it cools.
If the chain does not touch the underside of the
bar when the pole saw is off and cool, it should
be tensioned .
Tension the chain as described in "Tensioning
the Saw Chain" in the "Preparing for Use"
section of the manual .

Sharpening the Saw Chain

It is recommended that an Oregon® Service
Dealer sharpen the chain, but it can also be
sharpened by the operator .
WARNING: If the chain is incorrectly
sharpened or the depth gauge is set too
low, there is an increased risk of injury.
Always sharpen the chain according to the
specifications described in this manual.
IMPORTANT: Sharpening according to
these instructions will address minor
damage to the saw chain from contact
with dirt or similar occurrences. To repair
more serious saw chain damage (such
as after contact with concrete), take the
chain to an authorised Oregon® service
dealer, or replace the chain.
Chain sharpening requires these tools (available
in a kit from Oregon®; see "Specifications and
Components"):
• File guide
• 4 . 0 mm round saw chain sharpening file (use
only special saw chain sharpening files)
• 0 . 0 25 inch (0 . 6 5 mm) depth gauge tool
• Flat file
After collecting the tools, wear gloves and eye
protection, and unplug the pole saw . Then, file
the chain to set the depth gauge:
• Loosen the side cover knob and remove side
cover .
• Adjust the tensioning screw as far back
toward the rear of the cutting head as it will
go .
• Remove the chain .
• Place the chain in a vise to hold it steady .
22
Maintenance and Cleaning
• Place the depth gauge tool on top of the chain
so that one depth gauge protrudes through
the slot in the tool .
• If the depth gauge extends above the top of
the slot, file the depth gauge down level with
the top of the tool using a flat file (Fig . 26) .
Never file the depth gauge down enough to
exceed the depth gauge setting specified in
this manual .
FIG. 26
DEPTH GAUGE
IMPORTANT: Sharpen in one direction
only, from inside to outside. Never
sharpen with a back-and-forth motion.
• File from the inside surface of the depth
gauge to the outside (Fig . 27) .
FIG. 27
INSIDE
• Remove the depth gauge tool .
• After lowering, always file off the front corner
of each depth gauge parallel to its original
rounded or ramped shape (Fig . 28) .
FIG. 28
FLAT FILE
TOOL
Pole Saw Model PS750-091
OUTSIDE