Always inspect your chain prior to sharpening. Check
for the following:
- Bent or burred drive links
- Broken cutters or tie-straps
- Loose rivets, broken rivet heads
If broken parts are detected, take it to a servicing
dealer for replacement of parts or replace the entire chain. The
following steps will help you correctly sharpen (with a round file)
OREGONŽ saw chain:
-
Be sure to have the correct size file and file guide.
-
When hand filing it's important that 1/5, or 20 percent, of the
file's diameter is always held above the cutter's top plate.
Using the correct file guide is the easiest way to hold the file
in this position.
-
Keep the correct top-plate filing angle line on your file guide
parallel with the chain. Many cutters have a guide mark stamped
near the rear edge of the top plate that can also be used as a
guide for filing angle.
-
Sharpen cutters on one side of the chain first. File from the
inside of each cutter to the outside. Then turn your saw around
and repeat the process for cutters on the other side of the
chain.
-
If damage is present on the chrome surface of top plates or side
plates, file back until such damage is removed.
-
Keep all cutters equal. Start with the cutter with the most
damage and hand file all cutters back equally.
Note: Do not file or alter the tops of
kickback-reducing bumper tie straps or bumper-drive links,
except on 33SL, 34SL and 35SL chains. Only on 33SL, 34SL, and 35SL
will the bumper tie straps be filed down while the cutter depth
gauges are filed.
- How Do I Set My Depth Gauges?
Prior to setting your depth gauges it's important to
have the correct depth gauge tool. Most OREGONŽ chains have a number
stamped on each cutter located on the depth gauge indicating the
correct depth gauge setting. If unsure of your OREGONŽ chains depth
gauge setting, ask your OREGONŽ saw chain dealer. The following
steps will help you correctly set your depth gauges:
-
Use a depth-gauge tool with the correct built-in setting for
your chain and check your depth gauges after every third or
fourth sharpening.
-
Place the tool on top of your chain so one depth gauge protrudes
through the slot in the tool.
If the depth gauge extends above the slot, file the
depth gauge down level with the top of the tool using a flat file.
Never file the depth gauge down enough to exceed the depth gauge
setting specified.
Note: Do not attempt to file or alter tops of
kickback-reducing bumper tie straps or bumper drive links,
except on 33SL, 34SL, and 35SL chains. Only on 33SL, 34SL, and 35SL
will the bumper tie straps be filed down while the cutter depth
gauges are filed.
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