To Adjust The Clutch Control Cables; Auger Drive Belt Adjustment; Traction Drive Belt Adjustment; Belt Guide - Sears Craftsman 536.886121 Owner's Manual

Periodic adjustment of the cables may be required due to
normal stretch and wear on the belts. To check for correct
adjustment, the control lever must be in the full forward
position, restingon the plasticbumper._ The control cables
are correctly adjusted when the center of the "Z" fitting is
between the center and top of the hole in the ctutch lever
and there is no droop in the cable (See Fig._ 23)
If adjustment is necessary:
® Disconnect "Z" Fitting from drive lever,
@ Push the cable through the spring (See Fig 24) to
expose the threaded portion of the cable
® Holdthe square er_ofthe threaded portionwith pliers
and adjust the Iocknut in or out until the excess slack
is removed (See Fig. 24),
@ Pullthe cable backthroughthe spring and connect the
cable°
@ Do the same for'the other lever cable,
NOTE: Whenever the traction drive or auger belts are
adjusted or replaced, the cabtes will need to be adjusted
TO ADJUST BELTS
Belts stretch during norrnal use._If you need to adjust
AUGER MUST REIN FULL
LEVER FORWARD POSmON
(Just Contacting
"Z" FITTING Plastic Bumper) WHEN
CHECKING
PLASI']C BUMPER
FIG, 23
,__/SPRING
,LOCKNUT
FIG. 24
the belts due to wear or stretch, proceed as follows:
AUGER DRIVE BELT
If your snow thrower will not discharge snow, check the
control cable adjustmenL if it is correct, then check the
condition of the auger drive belt. It may be loose or
damaged., If it is damaged, replace it See To Replace
Belts paragraph on page 2t., If the auger drive belt is loose,
adjust as follows:
® Disconnect the spark plug wire.
® Remove the belt cover (See Fig 27, page 21)
® Loosen the nut on the auger idler pulley (See Fig 26)
and movethe pulley toward the belt about t/8"
® Tighten the nut..
® Press the auger drive lever, Check the tension on the
belt (opposite auger idler pulley). The belt should
deflect about 112"with moderate pressure (See Fig.
25),
NOTE: You may have to move the auger idlerpulley more
than once to obtain the correct tension
® Replace the belt cover..
® Check the clutch control cable adjustment,.
® Reconnect the spark plug wire
TRACTION DRIVE BELT
PULLEY
ENGAGED
DR|VE
PULLEY
112INCH
DEFLECTION
IMPELLER
PULLEY
FIG, 25
I I /I IIIIIIII II II IIII II IIIIII
_TRACTION DRIVE BELT
AUGER
DRIVE BELT BELT GUI DE
(Left Hand)
BELT GUIDE
(Right Hand)
!IVE
IDLER PULLEY
AUGER IDLER
PULLEY
The traction drive belt has constant spring pressure and
does not require adjustment.
® Replace the traction drive belt if it is slipping (see To
Replace Belts paragraph on page 21 ).
FIG. 26