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SE
CE
ADJUST
E TS
TO REPLACE AUGER SHEAR BOLT
The augers are secured to the auger shaft with special
bolts (See Fig°34) that are designed to break (to protect
the machine) ff an object becomes lodged in the auger
housing. Use of a harder bolt will destroy the protection
provided by the shear bolt..
IMPORTANT:
TO INSURE SAFETY AND PERFOR-
MANCE LEVELS, ONLY ORIGINAL
EQUIPMENT SHEAR BOLTS SHOULD
BE USED_WHEN REPLACING SHEAR
BOLTS,
BE SURE TO REPLACE
SHEAR BOLT
SPACERS.
To replace a broken shear bolt, proceed as !ollows:
@ Move the throttle to STOP and turn off all controls.
®
Disconnect the spark plug wire. Be sure all moving
parts have stopped.
•
Remove the broken shear bolt.
e
Lubricatethe auger shaft by squirting oilinto the shear
bolt hole in the auger shaft. Then rotate the auger to
distribute the oil on the shaft
O
Align the hole in the auger with the hole in the auger
shaft Installt he new shear bolt, shear bolt spacer, and
Iocknut provided in parts bag
Q
Reconnect the spark plug wire..
TO ADJUST
CARBURETOR
The carburetor (See Fig. 35 and Fig. 37, page 26) has
been pre-set at the factory and readjustment should not
be necessary. However, ifthe carburetor does need to be
adjusted, proceed as follows:
Q
Close the h_ghspeed adjusting screw by hand.
Do not over-tighten,
®
®
®
Then open it 1-114to t412 turns
Close the idle adjusting screw by hand. Do not over-
tighten.
•
Then open it 1-114 to 14/2 turns
®
Start the engine and let it warm up
O
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 difference between the two
limits and set the screw in the middle of the range
®
Let the engine run undisturbed for 30 seconds after
each setting to allow the engine to react to the previ-
ous adjustment..
®
Set the throttle control to IDLE Adjust the idle adjust-
ing screw in until the engine speed drops, then adjust
the screw out until the engine speed drops. Note the
difference between the two limits and set the screw in
the middle of the range..
AUGER
SHAFT
.
,lllllll
i,,,,
......................
-
i ill
FIG, 34
ii/i
N
i i u
illl
llllllll
i ii
illlll
CARBURETOR
IDLE ADJUSTING SCREW
(Close finger tight only)
BOWL DRAIN
HIGH SPEED ADJUSTING
SCREW
(Close linger tight only)
FIG. 35
®
tf the engine tends to stall under load or does
notaccelerate
from low speed
to high speed
properly, adjust the high speed screw out in 1/8 turn
increments until the problem is resolved. Let the
engine run for 30 seconds between settings
IMPORTANT:
NEVER TAMPER WITH THE ENGINE
GOVERNOR, WHICH IS FACTORY
SET FOR PROPER ENGINE SPEED.
OVER-SPEEDING
THE
ENGINE
ABOVE THE FACTORY HIGH SPEED
SETTING CAN BE DANGEROUS
IF
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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