Oregon Harvester - Sharpening Saw Chain with a Round File

Saw Chain
35 Mechanical Timber Harvesting Handbook
Saw Chain Maintenance
18HX 31686 40458 – 70502 12211 38850 OR 534-316 596397
19HX 31686 40458 – 70502 12211 38850 OR 534-316 596397
11BC 107617 – 90410 – 12211 – OR 534-516 533700
11H 107617 – 90410 – 12211 – OR 534-516 533700
Note: The above products have different Part Numbers outside of
North America.
File or grind to good chrome, removing all damage and keeping
all cutter geometry equal, while following and not exceeding
recommendations for angles and depth gauges settings.
Sharpening Saw Chain with a Round File
Using the correct file guide is
the easiest way to maintain
the saw chain because it
always lays flat along the
top plate. It keeps the file in
the correct height location of
1/5th, or 20%, of the correct
file’s diameter above the cutter’s top plate while helping you keep
the correct top plate angle.
Refer to the Filing Angles (pg. 31) or Optional Sharpening
Modifications chart (pg. 32) for individual specifications.
1. Inspect the cutters of your loop of
saw chain.
2. Begin filing on the chain’s left or right-hand
cutter with the most damage, sharpening
all the cutters from one side of the chain at
a time.
3. Be sure you
remove all
damage while
keeping all
geometries
equal.
60
= 1/5th or
20% above
top plate
OREGON OREGON
A
A=B
B