Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any adjustments, maintenance, service, or repairs, with engine running. Stop auger. Stop engine. Remove key. Disconnect spark plug wire and secure wire away from spark plug. Before tilting machine, drain all the fuel from fuel tank. Allow engine to run, outdoors where fumes can be safely dissipated, until all fuel is removed from carburetor.
4.1.9. CHUTE CRANK ADJUSTMENT
1.Loosen adjustment bolt. Move crank worm bracket away from ring gear slightly. NOTE: The worm gear should always maintain full contact with ring gear after adjustment. Retighten adjustment bolt. If crank still does not operate satisfactorily, lubricate worm gear and ring gear with grease. See Figure 4.13.
4.1.10.RUBBER DRIVE TIRE REPLACEMENT
1.Tilt machine forward to gain access to drive system area. Secure machine in the tilted position to prevent tipping over. Remove drive system cover plate. Refer to Figure 4.5.
2.Remove the five bolts that secure rubber drive disc to the drive hub. Remove drive tire. See Figure 4.14.
3.Install new rubber drive disc. Reinstall the five bolts. Torque to 6 to 12 ft. lbs. See Figure 4.14.
DRIVE
TIRE
DISC
RETAINER
CHUTE GEAR RING
ADJUSTMENT BOLT
CHUTE
CRANK
ROD
WORM BRACKET
CHAIN CASE
RETAININGASSEMBLY SCREW(S)
FIGURE 4.14
MOUNTING
BOLT
FIGURE 4.13
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