Four-tooth Blade
Sharpen with a single-cut flat file.
0.118" (3 mm)
Eight-tooth Blade
Sharpen with a single-cut flat file and a round file.
0.079" – 0.118" (2 – 3 mm)
0.275" – 0.315" (7 – 8 mm)
0.394" (10 mm)
0.059" – 0.098"
(1.5 – 2.5 mm) Radius
— US-28 —
80-tooth Blade
Sharpen with a single-cut flat file and a round file.
1.4 – 1.7 Times Original
Blade Thickness
40°
80°
Blade Thickness
Storage
For long term storage of the Trimmer/Brushcutter:
1.
Empty the fuel tank into a suitable fuel storage
container.
2.
Pump the primer bulb on the carburetor until all
fuel is discharged through the clear fuel return
hose.
3.
Run the engine to remove any fuel that may
remain in the carburetor.
4.
Perform all regular maintenance procedures and
any needed repairs.
5.
Remove the spark plug and squirt a very small
amount of oil into the cylinder.
5°
0.039" – 0.059"
(1 – 1.5 mm) Radius