Oregon Harvester - Optional Sharpening Angles

Saw Chain
Mechanical Timber Harvesting Handbook 32
Optional Sharpening Angles
Oregon provides a factory grind to suit a majority of our users, but
we also provide the approved, alternative sharpening
specifications that users may prefer for certain cutting conditions.
*For non-winter cutting conditions, the 11H depth gauge setting
may be increased to 0.070" / 1.788 mm.
Cutting Conditions
A
B
C
D
18HX/19HX
Factory
35° 10° 60° .050" • 1.27 mm
Softwood
40° 20° 60° .050" • 1.27 mm
Hardwood
35° 10° 60° .050" • 1.27 mm
Frozen
40° 5° 60° 040" • 1.02 mm
11BC
Factory
35°
0°
60° 060" • 1.52 mm
Softwood
35° 15° 60° 060" • 1.52 mm
Hardwood
35° 0° 60° 060" • 1.52 mm
Frozen
40° 0° 60° .050" • 1.27 mm
11H*
Factory
30° 10° 50° 060" • 1.52 mm
Softwood
35° 20° 50° 070" • 1.78 mm
Hardwood
30° 10° 50° 070" • 1.78 mm
Frozen
25° 5° 50° 060" • 1.52 mm
Saw Chain Maintenance