Snapper I55224 - Manual (Page 17)

17
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.
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.
FIGURE 4.14
CHUTE GEAR
RING
CHUTE
CRANK
ROD
WORM
BRACKET
MOUNTING
BOLT
ADJUSTMENT
BOLT
CHAIN CASE
ASSEMBLY
RETAINING
SCREW(S)
DISC
RETAINER
DRIVE
TIRE