Engine Oil Replacement; Cleaning The Air Filter; Spark Plug - Ryobi RB-264S Owner's Operating Manual

ENGINE OIL REPLACEMENT

WARNING. Old engine oil is considered
special waste and has to be disposed
according to your local environment
protection regulation. Do not pour the oil
to garbage can, sewer, soil etc.
1. The engine oil replacement is easier if engine is
warm (NOT HOT!).
2. Open the oil tank cap and drain the
old oil to an approved container.
3. Return the engine to an upright position and
refill with lubricant following the instructions in
the Adding/Checking Engine Oil section in this
manual (Page 7).
4. Clean any spilled oil on the machine if
necessary.

CLEANING THE AIR FILTER

1. The air filter elements should be cleaned to
provide the engine abundant clean air which
benefits the starting, power and life time of the
engine.
2. To clean or replace the air filter, press the
release button on the air filter housing, Fig.5 (1),
remove the cover (2) and take out the air filter
cartridge, Fig.6.
3. If only the air filter needs to be cleaned, remove
the air filter pad and clean it with a jet of dry
compressed air until all dust particles are
removed. Wear protective goggles and masks
to protect your health when carrying out this
step.
4. Assemble all parts in a reversed order.
NOTE: Make sure the filter is seated properly
inside the cover. Installing the filter incorrectly will
allow dirt to enter the engine, causing rapid engine
wear. If the nylon filter element is lost, it should be
reinstalled by contacting customer support.

SPARK PLUG

Do not attempt to remove the spark plug from a hot
engine.
Clean or replace the spark plug if it is soiled with
heavy oil deposits.
Replace the spark plug if the centre electrode is
worn at the end.
MAINTENANCE
This engine uses a CMR5H spark plug with a
0.7-0.8mm electrode gap, Fig.6. Use an exact
replacement and replace annually.
1. Pull out the spark plug cap and clean the dust in
the spark plug area.
2. Unscrew the spark plug with the socket wrench
provided.
3. Check the ceramic isolation. Replace the spark
plug if damaged.
10
1
2
Fig. 5
Fig. 6
Fig. 7
0.7-0.8 mm