Sears 536.886331 - Manual (Page 23)

SERVICE AND ADJUSTMENTS
TRACTION DRIVE BELT
if your snow thrower will not move forward, check the
traction drive belt for wear. If the traction drive belt needs
to be replaced, proceed as follows:
• Disconnect the spark plug wire.
• Remove the belt cover (See FIG. 7 In this section).
• Loosen belt guides (See FIG. 8} and pull belt guides
away from the engine drive pulley.
• Loosen nut on auger idler and pull auger idler pulley
away from belt.
• Remove auger drive belt from engine pulley.
• Pull drive belt idler pulley away from drive belt. Re­
move drive belt.
• Position new drive belt onto traction pulley.
• Pull idler pulley away from belt, allowing belt to be
positioned onto engine pulley.
• Release idler pulley. Ensure idler pulley is properly
engaged with belt.
• Reinstall auger drive belt.
• Adjust belt guides (See To Adjust The Belt Guides
paragraph below).
• Adju St idler on auger be It.
• Reinstall the belt cover.
• Reconnect the spark plug wire.
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:
• Disconnect the spark plug wire.
• Remove the belt cover (See FiG. 7 in this section).
• Engage the auger drive clutch lever.
• Measure the distance between the belt guides and the
belt (See FIG. 9 in this section). The distance should
be 3/32" for each guide.
• It adjustment is necessary, loosen the belt guide
mounting bolts. Move the bell guides to the correct
position. Tighten the mounting bolls.
• Reinstall the belt cover.
• Reconnect the spark plug wire.
REMOVE BOLT-
LOOSEN BOLT
REMOVE BOLT
BOTTOM PANEL
LOOSEN BOLT
TO ADJUST THE FRICTION WHEEL
if the snow thrower will not move forward, you need to
check the traction drive belt, the traction drive cable or the
friction wheel. If the friction wheel is damaged, it will need
to be replaced. See the To Replace Friction Wheel para­
graph in this section. If the friction wheel is not worn, check
the adjustment, as follows:
• 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. 10).
• Position the shifter lever in first (1} forward gear.
• Note the position of the friction wheel on the disc drive
plate. The right outer side of the disc drive plate shou Id
be 3" from the center of the friction wheel (See FIG.
11 ) .
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 position
(See FIG. 12).
• Reinstall the bail joint and nut "B." Tighten nut "A."
Reinstall the bottom panel.
FIG. 10