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ENGINE MAINTENANCE
Maintenance, replacement or repair of the
emission control devices and systems may be
performed by any non-road engine repair
establishment or individual.
Checldng Oil Level
Oil level should be chocked priorto each use or at
least every 5 hours of operation. Keep oil level
maintained.
Changing Oil
Change engine oilafter the first two hours and ,every
50 hours thereafter. If you are using your cleaning
system under extremely dirty or dusty conditions, or in •
extremely hot weather, change oil more often.
Change oil while engine is stillwarm from running,,as •
follows: •
• Place a suitable container for draining oil beneath
the engine.
• Clean area around oil drain plug, remove plug and
drain oil completely. When crankcase is empty,
reinsta, oil drain plug.
Clean area around oil fill plug and remove the oil
dipstick. Fill engine crankcase with recommended
oil until oil level is is at the full mark on the dipstick.
POUR SLOWLY.
When engine crankcase isfilled to proper level,
installand tighten oil dipstick.
Sen/me Air Cleaner
Your engine will not run properly and may be
damaged if you run it with a dirty air cleaner.
Replace the air cleaner once every 100 hours of
operation or once each year, whichever comes first.
Replace more often if operating under dirty or dusty
conditions. Do not attempt to clean or oil filter.
Replacements are available at your local Sears
Authorized Service Center.
To clean or replace the air cleaner, follow these steps:
• Remove wing nut on the air cleaner cover.
Base
Paper Element
Bas_ t_ '__(_Wing Nut
Remove dirtypaper element carefully to prevent
debris from failingintocarburetor. Discard,
Clean inside offilter case.
Install new paper air filter.
Reassemble all parts and fasten securely to the
carburetor with the wing nut.
Clean / Replace Spark Plug
Clean or replace the spark plug yearly or every 100
hours of operation.
A CAUTION: Disconnect spark plug wire from
spark plug and keep wire away from spark plug.
• Clean area around spark plug.
• Remove and inspectspark plug.
• Replace spark plug ifthe electrodes are pitted,
burned or porcelain is cracked. For replacement
use Champion RN4C or equivalent.
• Check electrode gap with wire feeler gauge and set
gap at .030 inches, ifnecessary.
• Install spark plug,tighten securely.
Carburetor
If you think your carburetor needs adjusting, see your
nearest Sears Service Center. Engine performance
may be affected at altitudes above 4000 feet. For
operation at higherelevations, contact your nearest
Sears Service Center.
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