the screen.
NOTE:
Be certain to reassemble the flail screen with the curved side
down.
g.
Reattach the discharge chute assembly with the hardware previously
removed and attach the bag to the unit..
Sharpening or Replacing Chipper Blades
NOTE: When tipping the unit, empty the fuel tank and keep engine spark plug side up
.
Disconnect spark plug wire and ground it against engine.
Chipper blades made by the special materials, heat-treated with high
hardness, sharp blade, but over time, it still becomes blunt.
a
．．
Replacing the chipper blades
：
.
Remove the impeller; unload the closed board on the back of impeller.
(Back) See figure 10.
.
Move the blade of impeller to closed board opening, put the
professional tool into the screw on the blade from the opening, and then
use the banner to loosen the screw from impeller opening, and then
remove the blade. See Figure 10.
Figure 10
.
Remove other blade in the same manner to replace or sharpen.
！
NOTE: WARNING: Use caution when replacing the blades. Wear heavy gloves
to avoid injury while handing the weld bolts, housing or the blades.
NOTE: When sharpening blades, follow the original angle of grind. Also, make
sure to remove an equal amount from each blade and torque hardware
.
IMPRTANT: Make sure that blades are assembled with the sharp edge facing
upward.
b.
Sharpening the blade
. Judgments of blade blunt
：
Heavy cutting sound
，
no loose belt but
slippery
，
feeding slowly; These phenomenon may be caused by a blunt
blade, and it should remove or inspect.
.
If blade edge were missing, the blade should be removed. In the process
of grinding edge should avoid annealing and discoloration.
.
Appropriate sharpening; do not impose too much pressure to avoid
small collapse on the edge.
.
Edge angle should be maintained at 45 to 40 degree range.
c. Replacing the belt:
. Remove new V belt when it overly extends or breaks.
.
Disconnect the spark plug wire and ground it away from the spark plug.
