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9 — English
CLEARING LINE JAM AND/OR REPLACING
BUMP KNOB
See Figures 10 - 11.
Stop the motor, remove the battery pack for cordless
power heads, or disconnect the plug from the power
source for electric power heads.
Rotate the lower housing counterclockwise so the arrow
on the upper housing aligns with the outside arrow on
the bump feed housing.
NOTE: The housing is spring loaded and will self eject
when unlocked. It is not necessary to remove the upper
string head housing from the drive shaft.
Push the spool and bump knob through the string head
housing and remove the string from the spool.
If replacing the bump knob, remove the old knob from
the spool. Align the knob ribs with the spool slots and
place the new bump knob onto the spool. If you are not
replacing the bump knob, skip this step.
Insert the bump knob and spool assembly through the
opening in the string head housing.
MAINTENANCE
Align the arrows on the lower string head housing with
the arrows on the upper string head housing.
Push the housing together and rotate the lower housing
clockwise until the arrows on the lower housing are
aligned with the lock on the upper housing.
Install line as described in Line Replacement.
ATTACHING THE STORAGE HANGER
See Figure 12.
To use the hanger cap, push in the button and place the hang-
er cap over the end of the attachment shaft. Slightly rotate
the cap from side to side until the button locks into place.
STORING THE ATTACHMENT
Store the attachment in a well-ventilated place that is
inaccessible to children.
Keep away from corrosive agents such as garden chemi-
cals and deicing salts.
REPLACEMENT PARTS
0.080 in. Spiral Replacement Line (Bulk) .............. AC04147
Available at homedepot.com
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
Line will not advance Line is welded to itself.
Not enough line on spool.
Line is worn too short.
Line is tangled on spool.
Lubricate with silicone spray.
Install more line. Refer to Line Replacement earlier in
this manual.
Pull lines while alternately pressing down on and releasing
bump knob.
Remove line from spool and rewind. Refer to Line
Replacement earlier in this manual.
Grass wraps around boom
housing and string head
Cutting tall grass at ground
level.
Cut tall grass from the top down to prevent wrapping.
1-800-525-2579
CALL US FIRST
For any questions about operating or maintaining
your product, call the RYOBI Help Line!
Your product has been fully tested prior to shipment
to ensure your complete satisfaction.
This product has a Five-year Limited Warranty for personal, family, or household
use (90 days for business or commercial use). For warranty details,
visit www.ryobitools.com or call (toll free) 1-800-525-2579.
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