Honda UMK431 Owner's Manual page 38

SERVICING YOUR HONDA TRIMMER
Semiautomatic (Bump-Feed) Cutting-Line Head
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Clean any mud, dirt, debris, etc., from the
area around the trimmer head; otherwise, it
will make it more difficult to service.
Locate the square-shaped "PUSH AND
TWIST" button on the side of the trimmer
head.
Hold the drum section of the trimmer head
firmly, then press the "PUSH AND TWIST"
button in slightly, then turn the spool cover
slightly to line up the triangle index marks.
The spool cover and the semiautomatic
button will come loose from the drum.
Remove the spool and spring from the drum.
Remove any remaining nylon line from the
spool.
TWIST
SPOOL COVER
\
SEMIAUTOMATIC
\
INDEX MARKS
SPOOL
Measure about 12 feet (3.7 meters) of new
line, then thread one end through the eyelet
on the spool. Pull the line until the two lengths
are equal.
Hold the spool in your hand with the spring
side facing away. Wind both lines together
around the spool, turning the spool in the
direction shown by the arrow.
When winding, it is important not to allow the
two lines to cross over each other. Position a
finger between the lines as you turn the spool
to prevent the lines from becoming crossed.
Rotate spool
this direction
to wind line.
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