Echo 73040 Owners Manual v.2 - Manual (Page 15)

Page 11 EZ Trim Mower Owners Manual
Service and Maintenance
1. Feed the cutting string through the second hole on
either end of the trimmer head leaving approximately
8 inches for the cutting surface. Total recommended
string length is 20-1/2 inches.
2. Continue by weaving the cutting string through the
first hole directly beside the second hole used in Step
1. Pull the cutting string tight.
3. Loop the cutting string back and feed through the first
hole on the opposite end of the trimmer head.
4. Feed through the remaining second hole and pull the
cutting string tight. The cutting strings in the middle
two holes should be the same length. If the length
differs, cut to an even length.
When completed, the trimmer head should resemble Fig.
#8.
The cutting string can also be wrapped in a variety of ways.
Refer to Fig. #9 and Fig. #10 for examples.
Cutting string is available in two thicknesses, .130 mil
(standard) and .155 mil (heavy duty). The type of string
selected is dependent on the conditions and material being
cut.
Heavier string than .155 mil can be use by making the holes
in the trimmer head larger. The decision to drill the holes
bigger shortens the life of .130 mil and .155 mil string if used
again.
The wrapping method and cutting string thickness chosen
is ultimately based on what is determined the best for the
operator.
4.6 CUTTING STRING REPLACEMENT
Before inspecting or servicing any part of the machine,
disconnect the spark plug wire from the spark plug and
make sure all moving parts have come to a complete
stop.
WARNING
Fig. #10
Fig. #9
Fig. #8