Ryobi 770rEB - Manual (Page 20)

MAINTENANCE AND REPAIR INSTRUCTIONS
20
Fig. 34
Fig. 35
Fig. 36
4. Apply enough clean SAE 30 oil to lightly coat the
filter (Fig. 36).
Air Filter
3. Wash the filter in detergent and water (Fig. 35).
Rinse the filter thoroughly. Squeeze out excess
water. Allow it to dry completely.
Cleaning the Air Filter
WARNING: To avoid serious personal injury,
always turn your trimmer off and allow it to
cool before you clean or do any maintenance
on it.
Clean and re-oil the air filter every 10 hours of operation.
It is an important item to maintain. Not maintaining the
air filter will VOID the warranty.
1. Remove air filter/muffler cover. See Removing the
Air filter/Muffler Cover.
2. Remove the air filter from behind the air filter/muffler
cover (Fig. 34).
Fig. 33
AIR FILTER MAINTENANCE
Removing the Air Filter/Muffler Cover
WARNING: To avoid serious personal injury,
always turn your trimmer off and allow it to
cool before you clean or do any maintenance
on it.
1. Place the choke lever in the PARTIAL choke
position (B).
NOTE: The choke lever must be in the PARTIAL
choke position (B) (Fig. 33) to remove the air
filter/muffler cover.
2. Remove the four (4) screws securing the air
filter/muffler cover (Fig. 33). Use a flat blade or
T20 Torx bit screwdriver.
Choke Lever
Screws Screws
Partial Choke
Position (B)
3. Pull the cover from the engine. Do not force.