Remove the shoulder screws and bell washers that go through the pivot arms and height bracket adjusters to the front support brace.

Remove the three screws on the upper housing that secure the nozzle cover and the nine screws that secure the lower housing to the upper housing. See Figure 12.

Housing

 

Screw

 

Nozzle

Lower Housing

Screws

Screws

 

Figure 12

Remove lock nut that secures flail screen to the lower housing. The flail screen does not have to be removed.

Remove the hex bolt, lock washer, and flat washer that secure the impeller assembly to the crankshaft. See Figure 13.

Apply lubricant to the threads of impeller removal tool and then thread the tool into the crankshaft. Stop when the impeller assembly can move on the crankshaft.

Remove the impeller assembly from the crankshaft. Unthread the impeller removal tool from the impeller assembly.

Remove the blade using a 3/16” allen wrench on the outside of the blade and 1/2” wrench on the impeller assembly.

Replace or sharpen chipper blade.

When sharpening blade, protect hands by using gloves and follow the original angle of grind.

Reassemble by performing the previous steps in reverse order.

Tighten blade screws to 210-250 in-lbs. Tighten impeller bolt to 375-425 in-lbs.

NOTE: Make certain chipper blade is reassembled with the sharp edge facing upward. See Figure 14.

Flail

Chipper

Blade

Blade

 

 

Impeller

 

Assembly

Figure 14

Upper

Storing Your Chipper Shredder Vacuum

• Clean the equipment thoroughly.

Housing

• Wipe equipment with a oiled rag to prevent rust.

Chipper

Blade

• Refer to engine manual for correct engine storage

Impeller

Assembly

instructions

 

• Store unit in a clean, dry area. Do not store next to

 

corrosive materials such as fertilizer.

Hex Bolt

 

Lock Washer

 

Flat Washer

 

Flail

 

Blade

 

BOTTOM VIEW

 

Figure 13

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Yard-Man 24A-020D401 manual Clean the equipment thoroughly, Wipe equipment with a oiled rag to prevent rust, Instructions