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

4.Remove the support plate.

NOTE: When reassembling, make certain the embossed tab faces inward towards the impeller.

5.Remove the two hand knobs and cupped washers which secure the discharge chute. Raise the discharge chute.

6.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.

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

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

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

9.When sharpening the blade, follow the original angle of grind as a guide. It is extremely important that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade.

10.An unbalanced blade will cause excessive vibration when rotating at high speeds and may cause damage to the unit. The blade can be tested for balance by balancing it on a round shaft screwdriver or nail. Remove metal from the heavy side until it is balanced evenly. See Figure 12.

11.When reassembling the blade, tighten center bolt to between 550 and 700 inch-pounds and the two outer bolts to between 250 and 350 inch-pounds, or lacking torque wrench, tighten securely. See Figure 11.

1.Insert screw driver through hole

2. Blade should be parallel to ground

Screw

DriverBlade

Ground

Figure 12

SECTION 8: OFF-SEASON STORAGE

Prepare your chipper-shredder for storage at the end of the season or if the unit will not be used for 30 days or more. The following steps should be taken to prepare your shredder for storage.

1.Clean and lubricate the shredder thoroughly.

2.Refer to engine manual for correct engine storage instructions.

3.If storing an unventilated or metal storage shed, coat metal parts with a light oil or silicone to prevent rust.

4.Store in a cool dry place. Do not store next to corrosive materials such as fertilizer.

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Yard Machines 462 Thru 465 manual OFF-SEASON Storage