Craftsman 247.795950 manual Sharpeningor Replacingthe Blades, 7F-D

.,, Chute Deflector _!

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7F-D

Washers(.,._'_.'_\\\ / _\ /_i/ sFlai/n

Hand Knob.,

FIGURE 19.

SHARPENINGOR REPLACINGTHE BLADES

CHIPPER BLADES

•Disconnect spark plug wire and move it away from spark plug.

•Remove the flail screen as instructed in _revious section.

•Remove the chipper chute by removing three hex nuts and washers. A 1/2" wrench is requi_'ed.See figure 19.

NOTE: When reassembling, the cupped washer goes on the bottom of the chipper chute with the cupped side against the chute.

•Rotate the impeller assembly by hand Lntil you locate one of the chipper blades in the chipper chute opening. Remove the blade, using a 3/16" allen wrench on the outside of the blade ._nd 1/2" wrench on the impeller assembly (inside the hous- ing). See figure 20.

•Remove the other blade in the same manm;r.

Replace or sharpen blades. If sharpening, make cer-

tain 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 in the impeller assembly). Torque bolts and nuts to 250-350 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 21.

•Remove the six hex lock nuts and lock washers from the housing weld bolts using a 1/2" wrench. Separate the chipper-shredder into two halves.

•Remove the back-up plate.

NOTE: When reassembling, make certain the open- ing on the back-up plate is toward the bottom of the unit. The back-up plate may be reversed to provide a new cutting edge.

Allen

Screws

Pipe

Sharp Edg_

Torque

Wrench

FIGURE 21.

•Loosen the two hand knobs and cupped washers which secure the chute deflector, and raise the chute deflector.

•Insert a 1/2" or 3/4" diameter pipe through the flail screen into the impeller to keep it from turning, or remove the flail screen and insert a piece of wood (2 x 4) into the chute opening.

•Remove the two outside screws on the blade, using a 3/16" allen wrench and a 1/2" wrench.

•Remove the blade by removing the center bolt, lock washer and flat washer.

NOTE: Use caution when removing the blade to avoid contacting the weld bolts on the housing.

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