Yard-Man 203 manual Belt Removal And Replacement, Sharpening Or Replacing Chipper Blades

Sharpening Or Replacing Chipper Blades

NOTE: When tipping the unit, empty the fuel tank and keep spark plug side up.

•Disconnect the spark plug wire and ground it against the engine.

•Remove the flail screen as instructed in the previous section.

•Remove the plastic belt cover on the front of the engine by removing the two self-tapping screws. See Figure 11.

•Remove the access plate by removing two hex lock nuts. See Figure 11.

•Locate one of the chipper blades in the access opening by rotating the impeller assembly by hand. Remove the chipper blade using a 3/16” allen wrench and a 1/2” wrench.

•Remove other blade in the same manner to replace or sharpen.

Access Plate

Self-Tapping

Screws

Hex

Lock Nuts

Belt

Cover

Figure 11

WARNING: Use caution when replacing the blades, wear heavy gloves to avoid a contact injury with the weld bolts or the housing while loosening or tightening the blades.

•When sharpening blades, follow the original angle of grind. Also, make sure to remove an equal amount from each blade and torque hardware 250 - 300 in. lbs.

NOTE: Make certain blades are reassembled with the sharp edge facing upward.

Belt Removal And Replacement

NOTE: Because the engine on this has a tapered crankshaft, a special impeller removal tool (part number 753-0638) is required to remove impeller assembly. Contact your local service dealer.

•Disconnect the spark plug wire and ground it away from the spark plug.

•Drain the gasoline and oil from the chipper shredder vacuum.

•Remove the three wing nuts that secure the nozzle to the outer housing and remove the nozzle. Refer to Figure 2.

•Remove the vacuum bag from the unit.

•Remove the discharge chute as instructed in the previous section Removing The Flail Screen.

•Remove the plastic belt cover on the front of the engine by removing two self-tapping screws. Refer to Figure 11.

•Tip the unit backward so that it rests on the handles.

•Remove the lower belt guard by removing the two self-tapping screws. See Figure 12.

Safety

Switch

Self-Tapping

Screw

Lower

Belt Guard

Self-Tapping

Screws

Figure 12

•Remove the safety switch from the front of the outer housing by removing the two self-tapping screws. See Figure 12.

•Remove the two hex bolts and hex lock nuts which extend through the housing. Lift the flail screen out of the housing. Refer to Figure 10.

•Remove the outer housing and housing blades by removing the fourteen self-tapping screws.

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

Hex Bolt	Impeller
Lock Washer
Flat Washer	Assembly

Figure 13

11