Lubrication; Engine; Spark Plugs; Air Cleaner - Craftsman 536.797571 Owner's Manual

CUSTOMER RESPONSIBILITIES
• Remove the oilfill cap (see Fig. 9).
• Fill the engine crankcase, pouring slowly. Do not
overfill. For approximate capacity see PRODUCT
SPECIFICATIONS on page 3 of this manual,
• Reinstallthe oil tillcap and tighten securely.
NOTE: The quill assembly bearings are factory sealed
and will requireno lubrication.
• Reconnectthe spark plugwire on the spark plug.
VIEW FROM REAR
OIL DRAIN PLUG
FIG. 10
AIR CLEANER
Replacethe tilteronce a year; more often under dustyor
dirtyconditions. D O NOT attempt to clean or oil the air
filter.
To installa new air filter, do the to,owing:
• Disconnectthe spark plug wire from the spark plug.
• Turn the cover (See Fig. 11) to the left (counterclock-
wise) and remove the cover and the air filterfromthe
flange,
Discardthe air filter.
Clean the cover and the flange thoroughly.
Insertthe new air filter intothe cover.
Pushthe coverfirmlyagainstthe flange and turn itto
the right(clockwise)as far as it will go (See Fig, 11.
Be sure the retainers are lucked around the flange.
Reconnectthe spark plug wire.
CAUTION: NEVER RUN THE ENGINE
WITHOUT THE AIR CLEANER ELEMENT
INSTALLED. A DEFECTIVE AIR
CLEANER CAN RESULT IN LOSS OF
ENGINE POWER AND CAN CAUSE EX-
CESSIVE WEAR OR DAMAGE TO THE
ENGINE COMPONENTS IF DIRT OR
DUST IS PERMITTED TO ENTER THE
ENGINE THROUGH THE CARBURETOR.
A DAMAGED AIR CLEANER, OR ONE
THAT IS CLOGGED WITH DUSTOR DIRT
SHOULD BE REPLACED IMMEDIATELY.
15
TO REMOVE
FLANGE
SLOT
FILTER
RETAINER
COVER
TURNCOVER
TO THE RIGH1
(CLOCKWISE
TO INSTALL
FiG. 11
SPARK PLUG
Clean the spark plug and reset the gap periodically.
Clean the area around the spark plug base, before
removal, to prevent dirt from entering into the engine.
Replace the spark plug if the electrodes are pitted or
burnedor ifthe pomelainiscracked.Cleanthe sparkplug
by carefully scrapingthe electrodes(do not sandblast or
use awire brush),Be sure thespark plugisclean andfree
of foreign material. Check the electrodes gap with a wire
feeler gauge and reset to .035 it necessary. If a new
sparkplug isneeded, refertothe Engine Operation and
Maintenance manualfor the proper replacement spark
plug.
Beforereinstalling the spark plug,coatthethreads lightly
with graphiteor lightoil to insure easy removal, Tighten
the spark plugfirmly intothe engine. If a torque wrench
is available, torque the spark plug to 15 foot- pounds.