MTD Yard-Man 203b - Manual (Page 9)

5. Locate one of the chipper blades in the access
plate opening by rotating the impeller assembly by
hand. Remove the blade using a 3/16" alien
wrench on the outside of the blade and 1/2"
wrench on the impeller assembly, inside the hous­
ing.
6. Remove the other blade in the same manner.
Replace or sharpen blades. If sharpening, make
certain to remove an equal amount from each
blade. Reassemble in reverse order.
NOTE: Make certain blades are reassembled with the
sharp edge facing upward, as viewed from the access
plate opening.
BELT REMOVAL AND REPLACEMENT
(Model 203B)
Note: Because the engine on this unit has a tapered
crankshaft, a special impeller removal tool (part num­
ber 753-0638) is required to remove the impeller
assembly in step 14. For heip with this step, contact
your iocai service dealer.
A
WARNING: Disconnect the spark plug
wire and ground it away from the spark
plug.
1. Disconnect the spark plug wire and ground it away
from the spark plug.
2. Drain the gasoline and oil from the chipper-
shredder-vacuum.
3. Remove the three wing nuts that secure the
nozzle to the outer housing, and remove the
nozzle. See figure 2.
4. Remove the bag from the chipper-shredder-
vacuum.
5.
6
.
Remove the four self-tapping screws that secure
the discharge chute to the housing. See figure 14.
Remove the flange nut which secures the support
bracket to the handle. See figure 14. Pivot support
bracket up and remover discharge chute from unit.
7. Remove the two self-tapping screws that secure
the plastic belt cover. See figure 12. Lift off belt
cover.
8. Tip the unit backwards so that it rests on the
handles.
9. Remove the lower belt guard by removing the two
self-tapping screws. See figure 15.
10. Remove the safety switch from the front of the
outer housing by removing the two self-tapping
screws. See figure 15.