Ryobi 720r Operator's Manual page 14

MAINTENANCE AND REPAIR INSTRUCTIONS
Fig. 15
14
Indexing Teeth
NOTE: Split-Line™ can only be used with the inner reel
with the slotted holes. Single line can be used on
either type of inner reel. Use figure 17 to identify
the inner reel you have.
NOTE: Always use the correct line length when installing
Fig. 16
Fig. 17
Fig. 18