Sears 536.886531 Service a Dadjust TS, To Replace Auger Shear Bolt, To Adjust Carburetor

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SERVICE A DADJUST TS

TO REPLACE AUGER SHEAR BOLT

The augers are secured lo the auger shaft with special bolls (See Fig 34) that are designed to break (to protect the r0achine) if 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 PERFORMANCE 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 boll, proceed as follows:

•Move the throttle to STOP and turn off al_controls

•Disconnect the spark plug wire Be sure all moving parts have stopped

eRemove the broken shear bot{

=Lubricate the auger shaft by squirting oil into the shear bolt hote in the auger shaft. Then rotate the auger to distribute the oil on the shaft.

•A{ign the hole in the auger with the hole in the auger shaft Install the new shear bolt, shear bo!l spacer, and iocknut provided in parts bag

eReconnect the spark plug wire

TO ADJUST CARBURETOR

The carburelor (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 lo be adjusted, proceed as follows:

•Close the high speed adjusting screw by hand

•Do not over4ighten

•Then open it 1-1/4 to 1-t/2turns

•Close the idle adjusting screw by har_d 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 unti! 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 lhe range

•Let the engine run undisturbed for 30 seconds after each setling Io allow lhe engine to reacl to the previous adjustment

•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 Nole the difference between the two limits

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SHEAR

SHEAR BOLT

SPACER

LOCK NUT

AUGER SHAFT

FIG. 34

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jCARBURETOR

_ IDLE ADJUSTING SCREW

==_==_) (Close {inger tight only)

/_t_,--=_.,____..,._ HiGH SPEED ADJUSTING

/_			SCREW
BOWL DRAIN	(Close		linger	tight only)
I IIIII	IIIIIj	IIU	ii	iiiiiiiiiiiiiiiiii

FIG. 35

and set the screw in the middle of the range

If the engine tends to stall under load or does not accelerate from tow speed to high speed properly, adjust the high speed screw out in 1/8 turn incre- ments 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 bANGEROUS

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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