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3. Access the impeller through the debris outlet on the unit.
Rotate the impeller counter-clockwise to dislodge the
clog. Remove the clog through the debris outlet.
DANGER
The impeller is sharp. Injury can occur when caution is not
taken. Always wear thick, durable protective gloves when
performing maintenance near or on the impeller.
4. Reconnect the quick disconnect scoop. Reinstall the
debris bag and tighten with the action spring buckle strap.
Replacing the Chipper Blade
TKV Units Only
1. Shut down the unit, wait for the impeller to stop, allow the
engine to cool, and disconnect the spark plug wire.
2. Follow steps 3-7 of the Replacing the Impeller section
3. Leaving the engine installed, turn the top plate upside
down so that the impeller is on top of the plate.
4. Use a 3/16" allen wrench and a 1/2" open end wrench to
remove the chipper blade from the impeller.
5. Install the new chipper blade. Reassemble the unit.
Sharpening the Chipper Blade
TKV Units Only
1. Shut down the unit, wait for the impeller to stop, allow the
engine to cool, and disconnect the spark plug wire.
2. Follow the instructions found in Replacing the Chipper
Blade to remove the chipper blade.
3. Sharpen the blade. Lightly grind the cutting edge of the
blade at 40 degrees. The same chipper blade can be
sharpened several times. However, the blade must be
replaced if excessive vibration occurs and/or when the
blade no longer overhangs the chip relief hole in the
impeller back plate.
DANGER
The blade is sharp. Injury can occur without proper
precautions. Always wear heavy duty gloves when
performing maintenance on or around the impeller.
CAUTION
Avoid heat buildup while sharpening. Heat buildup reduces
blade life and can damage the heat-treated hardness
properties of the metal. Evidence of too much heat buildup
is color changes along the sharpened edge.
4. Install the sharpened chipper blade.
5. Reverse Step 2 to reassemble the TKV unit.
6. Refuel and add oil to the engine before attempting to
start.
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