To Adjust The Friction Wheel; To Adjust The Belt Guides - Craftsman 536.886331 Owner's Manual

SERVICE AND ADJUSTMENTS
TRACTION
DRIVE BELT TO ADJUST THE FRICTION WHEEL
It your snow thrower will not move forward, ':heck the
tractiondrive belt for wear. It 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. B) and pull belt guides
away from the engine drive pulley.
• Loosen nut on auger idler and pull auger idler pulley
away from belt.
• Remove augerdrive 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
positionedonto 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).
• Adjust idler on auger belt.
• Reinstall the belt cover.
• Reconnect the spark plug wire,
TO ADJUST THE BELT GUIDES
It 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 Wheei para-
graph in this section. If the fdction 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 should
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 ball joint and nut "B." Tighten nut "A."
• Reinstall the bottom panel.
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.
• Measurethedistancebelweenthebeltguidesandthe
belt (See FIG. 9 In this section). 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.
• Reinstallthe belt cover.
• Reconnect the spark plug wire.
REMOVE BOLT
LOOSEN BOLT _j_
r
r_REMOVE BOLT
_i BOTTOMPANEL
_LOOSEN
BOLT
FRICTION DISC DRIVI
PLATE
SPEED SELECT
ROD
NUT "J
ADAPTOR
BALL JOINT
FiG. 11
\
E
ASSEMBLY
FiG. 10
FIG. 12
23