Ryobi 750r - Manual (Page 18)

18
MAINTENANCE AND REPAIR INSTRUCTIONS
Fig. 36
AIR FILTER MAINTENANCE
Removing the Air Filter/Muffler Cover
1. Remove the four (4) screws securing the air
filter/muffler cover (Fig. 36). Use a flat blade or
T-20 Torx bit screwdriver.
2. Pull the cover from the engine. Do not force.
Screws Screws
INSTALLING A PREWOUND REEL
1. Hold the outer spool with one hand and unscrew the
bump knob counterclockwise (Fig. 27). Inspect the bolt
inside the bump knob to make sure it moves freely.
Replace the bump knob if damaged.
2. Remove the old inner reel from the outer spool
(Fig. 27).
3. Remove the spring from the old inner reel
(Fig. 27).
4. Place the spring in the new inner reel.
NOTE: The spring must be assembled on the inner reel
before reassembling the cutting attachment.
5. Insert the ends of the line through the eyelets in the
outer spool (Fig. 35).
6. Place the new inner reel inside the outer spool. Push the
inner reel and outer spool together. While holding the
inner reel and outer spool, grasp the ends and pull firmly
to release the line from the holding slots in the spool.
7. Hold the inner reel in place and install the bump knob
by turning clockwise. Tighten securely.
Replacement Parts
See Accessories / Replacement Parts.
WARNING: To avoid serious personal injury,
always turn your trimmer off and allow it to
cool before you clean or service it.
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of operation.
It is an important item to maintain. Failure to maintain the
air filter will VOID the warranty.
1. Remove air filter/muffler cover. Refer to Removing
the Air Filter/Muffler Cover.
2. Turn cover over and look inside to locate the air filter.
Remove the air filter from inside the air filter/muffler
cover (Fig. 37).
3. Wash the filter in detergent and water (Fig. 38). Rinse
the filter thoroughly. Squeeze out excess water. Allow
it to dry completely.
4. Apply enough clean SAE 30 oil to lightly coat the filter
(Fig. 39).
5. Squeeze the filter to spread and remove excess oil
(Fig. 40).
Fig. 37 Fig. 38
Fig. 39 Fig. 40
6. Replace the air filter inside the air filter/muffler cover
(Fig. 37).
NOTE: Operating the unit without the air filter and air
filter/muffler cover assembly will VOID the
warranty.
Air Filter
Inside Muffler
Cover
EZ-Start™
Lever