• 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

Housing

 

crankshaft.

 

Screws

 

• 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

 

Lower Housing

reverse order.

 

Nozzle

• Tighten blade screws to 210-250 in-lbs.

Screws

Screws

 

Tighten impeller bolt to 375-425 in-lbs.

Figure 14

 

NOTE: Make certain chipper blade is reassembled with

• Remove lock nut that secures flail screen to the

the sharp edge facing upward. See Figure 16.

 

Chipper

lower housing. The flail screen does not have to be

Flail

Blade

removed. Refer to Figure 11.

 

Blade

 

 

• Remove the hex bolt, lock washer, and flat washer

 

 

that secure the impeller assembly to the crankshaft.

 

 

See Figure 15.

 

 

 

 

 

 

Impeller

 

 

 

Assembly

 

Upper

 

 

Chipper

Housing

 

 

 

Figure 16

 

Blade

 

 

Impeller

 

 

 

Storing Your Yard Vacuum

 

 

Assembly

 

 

 

 

 

 

• Clean the equipment thoroughly.

 

 

 

• Wipe equipment with a oiled rag to prevent rust.

 

 

• Refer to engine manual for correct engine storage

 

 

instructions.

 

 

 

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

 

Hex Bolt

corrosive materials such as fertilizer.

 

 

 

 

Lock Washer

 

 

 

Flat Washer

 

 

 

Flail

 

 

 

Blade

 

 

BOTTOM VIEW

 

 

 

Figure 15

 

 

 

12

Page 12
Image 12
Yard-Man 247.77038 manual Screws, Lower Housing, Nozzle, Chipper, Flail, Blade, Impeller, Hex Bolt