Ryobi 775r - Manual (Page 19)

MAINTENANCE AND REPAIR INSTRUCTIONS
19
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. 31)
to remove the air filter/muffler cover.
2. Remove the four (4) screws securing the
air filter/muffler cover (Fig. 31). Use a flat
blade or #20 Torx bit screwdriver.
Choke Lever
Screws Screws
Partial Choke
Position (B)
Fig. 31
3. Pull the inner reel with existing line from the
outer spool (Fig. 20).
4. Remove any existing line from the inner reel
before cleaning. Remove any debris or grass
from the knob, spring, inner reel, and foam
seal. Wash the inner reel with warm soapy
water (Fig. 29).
Inner Reel
Fig. 29
Shaft
Plunger
NOTE: The inner reel must be totally dry
before reinstalling it into the outer
spool. Do not lubricate the inner reel
or outer spool assembly.
6. Place the inner reel in the outer spool.
7. Place the bump knob, spring, and foam seal
in the inner reel (Fig. 26).
8. Tighten the bump knob by pressing down
and turning clockwise.
9. Install new line as described in Line
Installation for the SpeedSpool ® Pg. 17.
NOTE: A replacement Inner Reel
Part # 181460, or Bump Knob™
assembly Part # 181468, can be
purchased from your local authorized
dealer.
Fig. 30
5. Clean the shaft and the inner surface of the
outer spool. To clean the shaft underneath
the plunger, press down on the plunger
(Fig. 30). Remove any dirt or debris from the
shaft.
3. Pull the cover from the engine. Do not force.