Engine Maintenance; Maintenance Schedule; Changing Engine Oil - MTD 300 Series Operator's Manual

Engine Maintenance
7
WARNING! To prevent accidental start-up, shut off
the engine and remove the ignition key before
performing any type of engine maintenance.
Periodic inspection and adjustment of the engine is essential if
high level performance is to be maintained. Regular maintenance
will also ensure a long service life. The required service intervals
and the type of maintenance to be performed are described
in the table below. Follow the hourly or calendar intervals,
whichever occur first. More frequent service is required when
operating in adverse conditions.
MaintenanceSchedule
Tasks First 5 Hrsl Each Use or' Every Season ' Every Season Every seaSon
. Every 5 Hrs. or25 Hrs. or 50 Hrs. or 100 Hrs. I
Check engine oil •
Change engine oil I I I I
Check spark plug ®
service Spark plug i i .
Clean exhaust area •
Changing EngineOil
NOTE: Check the oil level before each use and after every five
hours of operation to be sure correct oil level is maintained. Refer
to Checking Oil Level in the Operation section
1. Drain fuel from tank by running engine until the fuel tank is
empty. Be sure fuel fill cap is secure.
2. Place suitable oil collection container under oil drain plug.
3. Remove oil drain plug, Figure 7-1.
\ _,,,
Oil Pluc
6. Refill with the recommended oil and check the oil level,
refer to Operation section for instructions.
7. Reinstall the oil filler cap/dipstick securely.
_lk AUTION: Thoroughly wash your hands with soap
and water as soon as possible after handling
used oil,
NOTE: Pleasedispose of used motor oil in a manner that is
friendly to the environment. Take it to a recyling center or other
collection center.
Oil Recommendations
When adding oil to the engine, refer to viscosity chart below.
Engine oil capacity is 600 ml (approx. 20 oz.). Do not over-fill.
Use a 4-stroke, or an equivalent high detergent, premium
quality motor oil certified to meet or exceed U.S. automobile
manufacturer's requirements for service classification SG, SF.
Motor oils classified SG, SF will show this designation on the
container.
(°F)-40 o-20 o 0o 200
(°c) -30 ° -20° -10°
400
0
4.
Figure 7-1
Tip engine to drain oil into the container. Used oil must be
disposed of at a proper collection center.
CAUTION: DO NOT use nondetergent oil or
2-stroke engine oil. It could shorten the engine's
service life.
5. Reinstall the drain plug and tighten it securely.
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