GreenWorks 21212 Owner's Manual page 18

MAINTENANCE
• Install the new spool so that the strings and slots align with the eyelets in the string head.
Thread the strings into the eyelets.
• Pull the strings extending from the string head so the string releases from the slots in the spool.
• Reinstall the spool retainer by depressing tabs into slots and pushing down until spool retainer
clicks into place.
SPOOL
HOLE
STRING REPLACEMENT (See Fig. 12 - 13.)
• Unplug the string trimmer.
• Remove the spool from the string head.
NOTE: Keep the spring attached to the spool. Remove any old string remaining on the spool.
• Cut two pieces of string, each being approximately 9 ft. (2.7 m) long. Use only .065 in. (1.65
mm) diameter monofilament string.
• Insert the first string into the anchor hole in the upper part of the spool. Wind the first string
around the upper part of the spool counterclockwise, as shown by the arrows on the spool.
Place string in the slot on upper spool flange, leaving about 6 in. (152 mm) extended beyond
the slot.
Do not overfill. After winding the string, there should be at least 1/4 in. (6 mm) between the
wound string and the outside edge of the spool.
• Repeat above step with second string, using the bottom part of spool. Do not overfill.
• Replace the plastic retainer, spool, and the spool retainer. Refer to Spool Replacement earlier
in this manual.
WIND
CLOCKWISE
Fig. 12
SPOOL
RETAINER
SPOOL
SLOTS
18
TABS
SPOOL
Fig. 13