Sears 536.884821 Service AN ,.,DJUSTMENTS, Traction Drive Belt, To Adjust the Friction Wheel

SERVICE AN ,.,DJUSTMENTS

TRACTION DRIVE BELT

If your snow thrower wilt not move forward, check the tractiondrive belt for wear. tfthe traction drivebelt needs

to be replaced,proceed as follows:

•Disconnect the spark plug wire.

eRemove the belt cover (See Fig. 26).

oLoosenbeltguides (See Fig..27) andpull belt guides away from the engine drivepulley..

eLoosennuton augeridler andpullaugeridlerpulley away from bell

oRemove auger drivebelt fromengine pulley.

ePull drive belt idler pulley away from drivebelt

i Remove drive belt..

ePositionnew drive beft ontotractionpulley.

ePull idler puUeyaway from belt, ailowingbelt to be positionedonto enginepulley

eRelease idlerpulley Ensureidlerpulleyis properly engaged withbelt.

eAdjust belt guides(see To Adjust The Belt Guides paragraph below).

eReinstallthe belt cover..

eReconnect the spark plug wire.

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TO ADJUST THE FRICTION WHEEL

If the snow thrower will not move forward, you need to checkthe trackdrivebelt,the tractiondrivecable or the frictionwheel,If thefriction wheel isdamaged;itwillneed to be replaced. See the To Replace Friction Wheel paragraphon page 21 ..If the friction wheel is notworn. checkthe adjustment, as follows:

e Disconnect the spark plug wire,

•Drain the gasoline from the gas tank.

•Stand snow thrower on the auger housing end.

•Remove the bottom panel (See Fig. 29)

•Position the shifter lever in first (1) gear.

•Note the position of the friction wheel on the disc drive plate. The right outer side of the disc drive plate should be 3" from the center of the friction wheel

(See Fig,.30).

if adjustment is necessary:

•Loosen nut "A"on the speed select rod.. Remove the ball joint by removing nut "B" from the shift yoke assembly_ Lengthen or shorten the rod by turning

the adaptor to obtain the correct friction wheel po. sition (See Fig, 31),

TO ADJUST THE BELT GUIDES

After you replace a track or auger drive belt, you need to adjust one or both of the belt guides. Proceed as follows:

e Disconnect the spark p_ug wirer

•Remove the belt cover (See Fig 26)

•Engage the auger drive clutch lever_

•Measure the distance between the belt guides and the belt (See Fig. 28).. The distance should be 3/32" for each guide_

•If adjustment is necessary, loosen the belt guide mounting bolts. Move the belt guides to the correct position. Tighten the mounting bolts

eReinstall the belt cover..

•Reconnect the spark plug wire.

•Reinstall the ball joint and nut "Bo" Tighten nut "A."

•Reinstall the bottom panel

WHEEL

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/

-	/,
			SPEED	SELECT
			ROD
		REMOVE	BOLT
		OTTOM PANEL
				ADAPTOI		YOKE
						ASSEMBLY
	li I	BOTTOM	PANEL
LOOSEN BOLT:_	:	,,-.--LOOSEN BOLT		8ALL JOINT	_	NUT "B"
i
.......................	FIG, 29				FlG 31	.............................................................
			2O