Craftsman 247.796890 - Manual (Page 10)

AIR CLEANER
The air cleaner prevents damaging dirt, dust, etc, from
entering the carburetor and being forced into the engine
and Is important to engine life and performance
Never run your engine without air cteaner completely
assembled
To Service Air Cleaner:
Clean and re-oil foam pre-cleaner at three month
intervals or every 25 hours, whichever occurs first:
See figure 17 Service more often under dusty
conditions
1. Remove knob and cover.
2. Remove foam pre-cleaner by sliding it off the
paper cartridge.
a. Wash foam pre-cleaner in liquid detergent
and water.
b Wrap foam pre-cleaner in cloth and squeeze
dry.
c Saturate foam pre-cleaner in clean engine
oil, Sqeeze to remove excess oil.
3. Install faorn pre-cleaner over paper cartridge.
Reassemble cover and screw down tight.
Replace and clean cartridge included with dual
element air cleaner yearly or every 100 hours.
Service more often if necessary.
Clean cartridge by tapping gently on a flat surface
If very dirty, replace cartridge or clean as follows;
a Wash in a iow or non-sudsing detergetji and
warm water solution CAUTION; Do not use
petroleum solvents such as kerosene, to clean
cartridge,
b. Rinse thoroughly with flowing water from
inside Out until water is clear,
c Allow cartridge to stand and air dry thoroughly
before using, DO NOT Oil CARTRIDGE, DO
NOT USE PRESSURIZED AIR TO CLEAN OR
DRY CARTRIDGE
4. Install cartridge and pre-cleaner then the cover
Screw knob down securely.
-Knob
MUFFLER
Do not operate the chipper-shredder without a muffler
or tamper with the exhaust system. Damaged mufflers
or spark arresters could create a fire hazard. Inspect
periodically, and replace if necessary If your engine is
equipped with a spark arrester screen assembly, remove
every 50 hours for cleaning and inspection. Replace if
damaged
CLEAN ENGINE
Clean engine periodically Remove dirt and debris with
a doth or brush Cleaning with a forceful spray of water
is not recommended as water could contaminate the
fue! system.
Yearly or every 50 hours, whichever occurs first, remove
the blower housing and clean the areas shown in figure
18 to avoid overspeeding, overheating and engine
damage Clean more often if necessary.
WARNING
Periodically clean muffler area to remove
ail grass, dirt and combustible debris.
Clean Out
Chaff and
Dirt
FIGURE 18
SPARK PLUG
The spark plug should be cleaned and the gap reset
to 030" at least once a season or every 50 hours of
operation Spark plug replacement is recommended at
the start of each season. Refer to engine parts list for
correct spark plug type
NOTE; Do not blast dean spark plug Spark plug should
be cieaned by scraping or wire brushing and washing
with a commercial solvent
030 Feeler Guage
FIGURE 17.
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