Service & adjustments, Removing flail screen, Sharpening or replacing blades – Craftsman 247.775890 User Manual
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SERVICE & ADJUSTMENTS
Removing Flail Screen
If the discharge area becomes clogged, remove the
flail screen and clean area as follows.
•
Stop engine, m£ike certain the chipper
shredder has come to a complete stop and
disconnect spark plug wire from the spark plug
before unclogging the chute.
•
Remove the two hand knobs on each side of
the discharge chute (also called the chute
deflector).
•
Lift the discharge chute up, and keep it out of
the way.
•
Remove two hex bolts which extend through
the housing. See Figure 18.
•
Pull the flail screen from inside the housing.
See Figure 18.
•
Clean the screen by scraping or washing with
water.
•
Reinstall the screen.
•
Put the discharge chute back to its original
position and tighten the hand knobs.
NOTE:
Be certain to reassemble the flail screen with
the curved side down.
Chute Deflector
Sharpening Or Replacing Blades
Chipper Blades
•
Disconnect spark plug wire and move it away
from spark plug.
•
Remove the flail screen as Instructed.
•
Using a 1^” wrench, remove the clipper chute
by removing three pairs of hex nut and cupped
washer.
Holding the chute to the frame, remove the hex
bolts that secure the brace to the frame. Remove
the brace. You will need a 7/16” wrench for this.
Rotate the impeller assembly by hand until you
locate one of the two chipper blades in the chipgec..
chute opening. Remove the blade, using a 3/1
alien wrench on the outside of the blade and 1/2”
wrench on ttie impeller assembly (inside the
housing). See Figure 19.
Slot
Blade
Sharp Edge
Figure 19
•
Remove the other blade jrvthe ^ame manner.
•
Replace or sharpen blades.
•
If sharpening, make certain to remove an equal
amount from each blade.
•
Reassemble in reverse order. Make certain
blades are reassembled with the sharp edge
facing the direction shown in Figure 19 (sharp
edge is assembled toward the slotted opening at
the bottom).
•
Torque bolts and nuts to 250-300 inch-pounds.
Shredding Blade
The shredding blade may be removed for sharpening
or replacement as follows.
•
Disconnect spark plug wire and move it away
from spark plug.
•
Lower the hopper assembly. Block up the
housing. See Figure 20.
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