Sears Craftsman 536.886531 - Manual (Page 22)

TO REPLACE AUGER SHEAR BOLT
The augers are secured to the auger shaft with special
bolls (See Fig 34) that are designed to break (to protect
the machine) if an object becomes lodged in the auger
housing Use of a harder bolt will destroy the protection
SHEA« BOLT------ >*HTTI
s
,ll.
SHEAR BOLT
SPACER
provided by the shear bolt,
IMPORTANT: TO INSURE SAFETY AND
K
^ 11
\
PERFORMANCE LEVELS. ONLY
ORIGINAL EQUIPMENT SHEAR
BOLTS SHOULD BE USED WHEN
REPLACING SHEAR BOLTS, 8ESURE
TO REPLACE SHEAR BOLT
T1
LOCK NUT.. m L i I \
AUGER SHAFT
SPACERS
To replace a broken shear bolt, proceed as follows:
FIG. 34
Move the throttle lo STOP and turn oil ail controls
» Disconnect the spark plug wire Be sure ail moving
parts have stopped
B Remove the broken shear bolt
« Lubricate the auger shaft by squirting oii into the
shear boii hole in the auger shaft. Then rotate the
auger to distribute the oil on the shaft,
m Align the hoie in the auger with the hole in the auger
shaft Install the new shear bolt, shear bolt spacer,
and locknut provided in parts bag
« Reconnect the spark plug wire
TO ADJUST CARBURETOR
The carburetor {See Fig 35 and Fig,. 37(page 24) has
been pre-set at the factory and readjustment should not
be necessary However, if the carburetor does need to be
adjusted, proceed as follows;
a Close the high speed adjusting screw by hand
• Do not over-tighten
• Then open it 1-1M to 1-1/2 turns
• Close the idle adjusting screw by hand, Do not over­
tighten
• Then open it 1-1/4 to 1-1/2 turns
• Start the engine and let it warm up
• Set the throttle control to RUN Adjust the high
speed adjusting screw in until the engine speed or
sound alters Adjust the screw out until the engine
speed sound alters Note the dillerence between
the two limits and set the screw in the middle of the
range,
B Let the engine run undisturbed for 30 seconds after
each setting lo allow the engine to react to the
previous adjustment
B Set the throttle control to IDLE Adjust the idle
adjusting screw in until the engine speed drops,
then adjust the screw out until the engine speed
drops. Note the difference between the two limits
, . T—X
■ CARBURETOR
BOWL DRAIN
IDLE ADJUSTING SCFtEV/
{Close linger fighi only)
HIGH SPEED ADJUSTING
SCREW
(Close linger light only)
FIG. 35
and set the screw in the middle of the range
® If the engine tends to stall tinder load or does not
accelerate from low speed lo high speed properly,
adjust the high speed screw out in 1/8 turn incre­
ments until the problem is resolved. Let the engine
run (or 30 seconds between settings
IMPORTANT: NEVER TAMPER WITH THE ENGINE
GOVERNOR. WHICH IS FACTORYSET
FOR PROPER ENGINE SPEED
OVER-SPEEDING THE ENGINE
ABOVE THE FACTORY HIGH SPEED
SETTING CAN BE DANGEROUS.
' ¡F YOU THINK THE engine -
governed HIGH SPEED NEEDS
ADJUSTING, CONTACT YOUR
NEAREST SEARS SERVICE CENTER,
WHICH HAS THE PROPER
EQUIPMENT AND EXPERIENCE TO
MAKE ANY NECESSARY
ADJUSTMENTS
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