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Remove the frame cover from the underside of the snow thrower by removing four self-tapping screws which secure it. Refer to Fig. 8-3. 1. 2. 3. a. b. c. 4. 5. Figure 8-6 Figure 8-5 Section 78 — Service 21 Slip the drive belt off the pulley and between friction wheel and friction wheel disc. See Fig. 8-7. Remove and replace belt in the reverse order. NOTE: Engaging the drive control will ease reassembly of the belt. Friction Wheel Inspection If the snow thrower fails to drive with the drive contr