Honda HHT31S Owner's Manual page 34

SERVICING YOUR HONDA TRIMMER
Semi-Matic (Bump-Feed) Cutting-Line Head
1. Clean any mud, dirt, debris, etc., from around
the trimmer head area; otherwise, it will make
it more difficult to service.
2. Locate the half-round locking hole on the
spool.
3. It may be necessary to lightly rotate the spool
in the direction of the arrow about an 1/8 turn
until the spool stops.
4. Hold the housing securely, then continue to
rotate the spool in the direction of the arrow
an additional 1/4 inch or the width of the
channel to unlock the spool from the housing.
5. Lift the spool out of the housing and remove
any remaining line from the spool.
6. Measure approximately 20 feet (6 meters) of
new line, then thread one end through the
hole in the ridge on the spool.
Pull the line until the two lengths are equal.
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SPOOL
NYLON LINE
HALF-ROUND
LOCKING HOLE
CHANNEL
HOUSING
SPOOL