Sears 143.804062 Snow Blower User Manual


 
SERVmCE AND ADJUSTME T$
TO ADJUST THE CLUTCH CONTROL _ " ....:: .... ......
CABLES
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, resting on the plastic bumper.. The control
cables are correctly adjusted when the center of the "Z"
Fitting is in the center of the hole and there is no slack in
the cable (See Fig. 21)
If adjustment is necessary:
o Push the cable through the spring (See Fig. 22) to
expose the threaded portion of the cable.
o Hold the square end of the threaded portion with
pliers and adjust the locknut in or out until the excess
slack is removed..
o Pul! the cable back through the 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 cables will need to be adjusted.
TO ADJUST BELTS
Belts stretch during normal use. tf you need to adjust
the belts due to wear or stretch, proceed as follows:
TRACK DRIVE BELT (See Fig. 24)
The track drive belt has constant spring pressure and
does not require adjustment. Check the clutch control
cable adjustment before replacing the belt.
Replace the track drive belt if it is still slipping (see To
Replace Belts paragraph on page 18).
AUGER DRIVE BELT (see Fig. 24)
tf your snow thrower wilt not discharge snow, check the
control cable adjustment. If it iscorrect, then check the
conditio n of the auger drive bell It may be loose or dam-
aged. If it is damaged, replace it. See To Replace Belts
on page 18o If the auger drive belt is loose, adjust as
follows:
o Disconnect the spark plug wire.
® Remove the belt cover (See Fig. 23).
e Loosen the nut on the idler pulley (See Fig. 24) and
move the pulley toward the belt about 1/8"**
o Tighten the nut.
Engage the auger drive clutch lever. Checktheten-
sion on the belt (opposite idler pulley)_ The belt
should deflect about 1/2" with moderate pressure
(See Fig. 25).
NOTE: You may have to move the idler pulley more than
once to obtain the correct tension.
® Replacethe belt cover,
e Check the clutch control cable adjustment
TRACTION
DRIVE
SPRING
DRIVE
SPRING
FIG. 22
I/4-10 X 3/4"
TAP SCREW
\
BELT
FENDER
FIG.23
AUGER DRIVE
BELT
TRACTION DRIVE'\
BELT
AUGER IDLER
PULLEY
FIG. 24
DRIVE PULLEY
IDLER PULLEY t12 INCH
ENGAGED DEFLECTION
IMPELLER
PULLEY
o Reconnect the spark plug wire
FIG,, 25
17