MTD 31AE5MLG729 - Manual (Page 11)

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10. FRICTION WHEEL REMOVAL
If the snow thrower fails to drive with the drive control
engaged, and performing the drive control cable
adjustment fails to correct the problem, the friction
wheel may need to be replaced.
10.1. Examine the friction wheel for signs of wear or
cracking and replace if necessary.
10.2. Place the shift lever in second reverse (R2) posi-
tion.
10.3. Drain the gasoline from the snow thrower, or
place a piece of plastic under the gas cap.
10.4. Disconnect the spark plug wire from the spark
plug.
10.5. Carefully pivot the snow thrower up and forward
so that it rests on the auger housing.
10.6. Using a 3/8” socket, remove the four self-tapping
screws that secure the frame cover to the frame.
See Figure 19.
Figure 19
Self Tapping Screws
10.7. Using a ½” socket remove the screws and bell
washers securing the wheels to the axles.
Remove both wheels. See Figure 20.
10.8. Using a 3/8” socket, remove the four screws
securing the right drive cover to the frame.
Remove the drive cover. Repeat for the left drive
cover. See Figure 21.
Figure 20
Figure 21
Right Drive Cover
Screws