Sears 536.886331 To Replace Auger Shear Bolt, To Adjust Carburetor, Service And, Adjustments

SERVICE AND

TO REPLACE AUGER SHEAR BOLT

The augers are secured to the auger shaft with special bolts (See FIG. 16) that are designed to break (to protect the mechlne) 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 PERFOR- MANCE LEVELS, ONLY ORIGINAL

EQUIPMENT SHEAR B O L T S

SHOULD BE USED. WHEN REPLAC-

ING SHEAR BOLTS, BE SURE TO

REPLACE SHEAR BOLT SPACERS. TO replace a broken shear bolt, proceed as follows:

•Move the throttle to STOP and tum off all controls.

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

•Remove the broken shear bolt.

•Lubricate the auger shaft zerk fitting (See the

Customer Responsibilities section in this manual).

•Align the hole in the auger with the hole in the auger shaft. Install the new shear bolt and shear bolt spacer provided.

•Reconnect the spark plug wire.

TO ADJUST CARBURETOR

The carburetor (See FIG. 17 and (FIG. 1 Storage) 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:

ADJUSTMENTS

SHEAR

°°'T s,,,.o,,.T

LOCKNUT"-_'_

FIG. 16

IDLE ADJUSTING SCREW (Close finger light only)

	HIGH SPEED	ADJUSTING
)RAIN	SCREW
	(Close finger	tight only)

FIG. 17

•Close the high speed adjusting screw by hand.

•Do not over-tighten.

•Then open it 1-1/4 to 1-1/2 turns.

•Close the idle adjusting screw byturning clockwise 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 controlto 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.

•Set the throttle control to SLOW. 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 and set the screw in the middle of the range.

•If the engine tends to stall under load or not accelerate from low speed to high speed prope fly, adjust the high speed screw out in 1/8 turn increments until the problem is resolved.

•Let the engine run undisturbed for 30 seconds be- tween each setting to allow the engine to react to the previous adjustments.

IMPORTANT: NEVER TAMPER WITH THE ENGINE GOVERNOR, WHICH IS FACTORY SET FOR PROPER ENGINE SPEED.

OVERSPEEDING THE ENGINE

ABOVE THE FACTORY HIGH SPEED

SETTING CAN BEDANGEROUS. IF

YOU THINK THE ENGINE GOVERNED HIGH SPEED NEEDS AD-

JUSTING, CONTACTYOUR NEAR-

EST SEARS SERVICE CENTER.

WHICH HAS THE PROPER EQUIP-

MENT AND EXPERIENCE TO MAKE

ANY NECESSARY ADJUSTMENTS