Tension Adjustment; Engine; Maintenance; L Lubrication - Craftsman 247.88441 Owner's Manual

4 horsepower 2 cycle engine 21 inch single stage 120 v. electric starter
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OPERATING TIPS
• Use your snow thrower to remove fresh snow before
it is packed down by footprints or tire tracks.
• Discharge snow in the direction the wind is blowing
whenever possible.
• Slightly overlap each previous swath.
• Snow up to about an 8 inch depth can be removed
easily by walking at a moderate rate. Slow your pace
for wet or deep snow.
• Run engine for a few minutes before stopping to help
dry off any moisture on the engine.
MAINTENANCE
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GENERALRECOMMENDATIONS
• Periodically check all fasteners and be sure they are
tight.
• Follow the Service Recommendation Schedule on
page 12.
SNOWTHROWER
BELT TENSION ADJUSTMENT
Periodic adjustment of the belt tension may be required
due to normal stretch and wear on the belt. Adjustment
is needed if the augers seem to hesitate white turning,
but the engine maintains
the same speed.
There are three holes in the control handle which pro-
vide this adjustment. Move the clutch cable to the
highest hole to increase the belt tension. Refer to figure
3.
If additional adjustment is needed, there are three ad-
justment holes provided in the idler brake bracket
assembly. To adjust, remove the belt cover by follow-
ing the first three steps under "Belt Removal and
Replacement" on page 11. Move the extension spring
on the end of the clutch cable to the next higher adjust-
ment position on the idler brake bracket assembly.
Reassemble belt cover. See figure 6.
High Position
Idler
Bracket
Middle Position
LUBRICATION
Your snow thrower has been designed so that no
lubrication is necessary.
ENGINE
SPARK PLUG
Check spark plug once a season or every 100 operating
hours.
• Pry off the protective
plastic cap from the dash
panel. Refer to figure 4.
• Clean area around spark plug. Remove and inspect
plug,
• Replace spark plug if electrodes are pitted, burned
or porcelain is cracked. For replacement,
use
Champion CJ-SY or equivalent.
• Check electrode gap with a wire feeler gauge. Set
gap at .030 if necessary.
Install spark plug and lighten securely, If torque
wrench is available, torque plug to approximately 15
foot pounds.
MUFFLER AND CYLINDER EXHAUST PORTS
The muffler and cylinder exhaust ports should be
cleaned after each seventy-five (75) to one hundred
(100) hours of operation. For this maintenance pro-
cedure it is recommended that you take your unit to
your SEARS Service Center.
/
FIGURE 6.
Pulley
Position
Idler
Spring on End of
Pulley
Clutch Cable
WARNING: TEMPERATURE OF MUFFLER J
AND
NEARBY
AREAS
MAY
EXCEED
,1500F.
CLEANING
Wipe moisture off snow thrower after each use.
9

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