Expand-it UT15522B Operator's Manual page 11

MAINTENANCE
STRING REPLACEMENT
See Figures 8, 9, 10 and 11.
1. Stop the engine, disconnect the spark plug wire. Hold
the string head and unscrew the spool retainer. Turn
clockwise.
2. Remove the spool from the string head. NOTE: Keep
the spring attached to the spool. Remove any old string
remaining on the spool.
3. Cut two pieces of string, each being approximately 9 ft.
(2.7 m) long.
4. 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.
5. Repeat above step with second string, using the bottom
part of spool. Do not overfill.
6. Replace the spool and the spool retainer. Refer to
"Spool Replacement " earlier in this manual.
STRING REPLACEMENT PARTS
.095 in. (2.4 mm)
Complete String Head Replacement
Spool and String
Spool Retainer
SPRING
FIRST STRING
FIRST STRING
SLOT
AP04101
88046
AP04103
SLOT
11
SPOOL
ARROWS ON
SPOOL
ANCHOR
HOLE
Fig. 8
Fig. 9
SECOND
STRING
Fig. 10
ARROWS ON
SPOOL
Fig. 11