Ryobi 330B - Manual (Page 15)

MAINTENANCE AND REPAIR INSTRUCTIONS
15
FREQUENCY MAINTENANCE REQUIRED REFER TO:
Before Starting Engine Fill fuel tank with correct oil and fuel mixture. Page 11
Every 10 Hours Clean and re-oil air filter. Page 15
Every 50 Hours Check spark plug condition and gap. Page 17
NOTE: Some maintenance procedures may require
special tools or skills. If you are unsure about
these procedures take your unit to an authorized
service dealer.
MAINTENANCE SCHEDULE
These required maintenance procedures should be
performed at the frequency stated in the table. They
should also be included as part of any seasonal tune-up.
WARNING: To prevent serious personal
injury, never do maintenance or repairs with
unit running. Always do maintenance and
repairs on a cool unit. Disconnect spark plug
wire to ensure the unit will not start.
Fig. 16
Fig. 19
Fig. 17
Fig. 18
AIR FILTER MAINTENANCE
NOTE: Clean and re-oil the air filter after every 10 hours
of operation. Your unit's air filter is one of the
most important areas to maintain. If it is not
maintained, you will VOID the warranty. Before
cleaning, make sure the unit is turned off.
1. Wipe down the air filter cover and surrounding area.
This will help prevent any debris entering the
carburetor when the cover is removed.
2. Remove the screws on each side of the
carburetor/air filter cover assembly. Remove
the carburetor/air filter cover (Fig. 16).
3. Remove the air filter (Fig. 17).
4. Wash the filter in detergent and water (Fig. 18). Rinse
the filter thoroughly and allow it to dry.
5. Apply enough clean SAE 30 oil to lightly coat the
filter (Fig. 19).
Screws Air Filter Cover
Air Filter