7.Carefully tilt and support the unit up to provide access underneath to the nozzle mounting hardware and impeller. Remove the three shoulder bolts securing the black plastic lower flail housing to the lower housing. Refer to Figure

7-4.

10.The nuts on the flat head cap screws can be reached from underneath using a 1/2-inch socket, universal, and extension. See Figure 7-6.

Figure 7-4

8.Tilt top of black plastic lower flail housing toward the engine to remove.

9.Using a 3/16” allen wrench, remove the flat head cap screws that hold the chipper blade to the impeller. These screws are accessible through the opening created when the chipper chute was removed earlier. See Figure 7-5.

Flat Head

Cap Screws

Chipper

Blade

Figure 7-5

Impeller

Nuts

Figure 7-6

11.Replace or sharpen chipper blade. The blade can be sharpened with a file or on a grinding wheel.

WARNING: The chipper blade is sharp. When sharpening blade, wear leather work gloves to protect your hands and follow the original angle of grind.

12.Reassemble by performing the previous steps in the opposite order and manner of removal.

NOTE: Tighten blade screws to 210 - 250 in-lbs. Make certain chipper blade is reassembled with the sharp edge facing upward.

Off-Season Storage

•When storing the chipper/shredder vacuum in an unventilated or metal storage shed, care should be taken to rustproof the non-painted surfaces. Using a light oil or silicone, coat the equipment, especially any springs, bearings, and cables.

•Remove all dirt from exterior of engine and equipment.

•Follow lubrication recommendations.

•Refer to engine manual for correct engine storage instructions.

•Store equipment in a clean, dry area. Do not store in an area where equipment is present that may use a pilot light or has a component that can create a spark.

16Section 7— Service