Craftsman 536.88123 - Manual (Page 22)

TO REPLACE AUGER SHEAR BOLT
The augers are secured to the auger shaft
with special bolts (see figure below) that are
designed to break (to protect the machine)
it an object becomes lodged in the auger
housing. Use of a harder bolt will destroy the
protection provided by the shear bolt.
IMPORTANT: To ensure safety and perfor­
mance levels, only original equipment shear
bolts should be used.
To replace a broken shear bolt, proceed
as follows;
Move the throttle to ® (STOP) and turn
off all controls.
Disconnect the spark plug wire. Be sure
all moving parts have stopped.
Lubricate the auger shaft zerk fitting (See
the Maintenance section ).
Align the hole in the auger with the hole
in the auger shaft. Install the new shear
bolt and nut found in toolbox located on
top of belt cover.
Reconnect the spark plug wire.
TO ADJUST OR REPLACE
THE SPARK PLUG
NOTICE: This spark ignition system meets
all requirements of the Canadian Interfer­
ence-Causing Equipment Regulations.
NOTICE: This engine complies with all cur­
rent Australian and New Zealand limitaions
regarding electromagnetic interference.
If you have difficulty starting your snow
thrower, you may need to adjust or replace
the spark plug. Follow the instructions be­
low.
Replace the spark plug if the electrodes are
pitted or burned or if the porcelain is
cracked.
TO ADJUST;
• Clean the spark plug by carefully scrap­
ing the electrodes (do not sand blast or
use a wire brush).
• Be sure the spark plug is clean and free
of foreign material. Check the electrodes
gap (see figure below) with a wire feeler
gauge and reset the gap to .030 inch if
necessary.
TO REPLACE:
• If you need a new spark plug, use only
the proper replacement spark plug (see
page 15).
• Set the gap to .030 inches.
• Before installing the spark plug, coat its
threads lightly with oil or grease to insure
easy removal.
• Tighten the plug firmly into the engine.
• If a torque wrench is available, torque the
plug to 18 to 23 ft. - lbs.
TO ADJUST CARBURETOR
if you think your carburetor needs adjusting,
see your nearest Authorized Craftsman
Service Center, Engine performance
should not be affected at altitudes up to
7,000 feet. For operation at higher eleva­
tions, contact your nearest Craftsman Ser­
vice Center.