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AUGER SHEAR BOLT REPLACEMENT
The augers are secured to the auger shaft with special bolts
that are designed to break if an object becomes lodged in the
auger housing. Use of a harder bolt will reduce the protection
provided by the shear bolt. To replace a broken shear bolt,
proceed as follows:
WARNING: To insure safety and performance
levels, only original replacement shear bolts
should be used.
1. Move throttle to STOP, disengage all controls, discon-
nect the spark plug lead wire, and insure all moving parts
have stopped.
2. Lubricate the auger shaft zerk fittings (see Lubrication
Points in the Maintenance section of this manual).
3. Align the hole in the auger with the hole in the auger shaft.
Install new shear bolt and locknut provided. (See
Figure 44 )
SPARK PLUG ADJUSTMENT
NOTICE:
This spark ignition system meets all
requirements of the Canadian Interference−Causing
Equipment Regulations.
Check the spark plug every twenty−five (25) hours. Replace
the spark plug if the electrodes are pitted or burned, if the
porcelain is cracked, or every 100 hours of use.
1. Clean spark plug and reset gap periodically.
2. Clean area around spark plug base before removal, to
prevent dirt from entering engine.
3. Replace spark plug if electrodes are pitted or burned or
if porcelain is cracked.
4. Clean spark plug by carefully scraping electrodes (do not
sandblast or use wire brush).
5. Be sure spark plug is clean and free of foreign material.
Check electrodes gap with a wire feeler gauge and reset
gap to 0.030" (0.76 mm) if necessary. If a new spark plug
is needed, refer to Engine Repair Parts section of this
manual for proper replacement spark plug.
1741078
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ADJUSTMENT/REPAIR
NOTE: For the operator's convience, the shear bolt
wrenches are located in the toolbox.
6. Before installing spark plug, coat threads lightly with
7. Tighten plug firmly into engine. If torque wrench is avail-
34
Shear Pin
Locknut
graphite grease to insure easy removal.
able, torque plug to 18−23 ft−lbs.
.030" (0.76 mm) Gap
Figure 44
Figure 45
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