Ryobi 780r, Operator'S Manual, Page: 14 / 32

ASSEMBLY INSTRUCTIONS
14
Cutting Attachment
Locking Rod
4. Remove the nut, blade retainer, and blade.
Store the nut and blade together for future
use in a secure place. Store out of reach of
children.
Install the Cutting Attachment
5. Align the shaft bushing hole with the locking
rod slot and insert the locking rod into the
shaft bushing hole. (Fig. 15). Place the blade
retainer on the output shaft with the flat
surface against the output shaft bushing as
shown in Fig. 17. Screw the cutting
attachment counterclockwise onto the output
shaft. Tighten securely.
NOTE: The blade retainer must be installed on
the output shaft in the position shown
for the cutting attachment to work
correctly.
Fig. 17
clockwise
Fig. 16
REMOVE THE CUTTING BLADE AND
INSTALL THE CUTTING ATTACHMENT
Remove the Cutting Blade
WARNING: To avoid serious
personal injury, always wear gloves
while handling or installing the blade.
1. Install the cutting blade cover. Pull the cover
around the blade and click the plastic lock.
2. Align the shaft bushing hole with the locking
rod slot and insert the locking rod into the
bushing hole (Fig. 15).
6. Remove the locking rod.
7. Install the cutting attachment shield. See
Removing and Installing Cutting
Attachment Shield
, Pg. 11.
WARNING : To avoid serious
personal injury, the cutting
attachment shield
SHALL be in
place at all times while operating the
unit as a grass trimmer.
3. While holding the locking rod, loosen the nut
on the blade by turning it clockwise with a
5/8 inch closed-end or socket wrench
(Fig. 16).
Fig. 15
Shaft Bushing
Hole
Locking
Rod Slot
Output Shaft
Bushing
Locking Rod
Output Shaft
Blade Retainer
Output Shaft
Bushing