Use and Care Guide

56-VOLT LITHIUM-ION CORDLESS 15" STRING TRIMMER—ST1520 & ST1520S30
PROBLEM CAUSE SOLUTION
Trimmer head will
not advance line.
◾
The motor shaft or trimmer
head is bound with grass.
◾
Stop the trimmer, remove the
battery, and clean the motor shaft
and trimmer head.
◾
There is not enough line on
the spool or the line breaks
from the eyelet.
◾
Remove the battery and replace
the cutting line follow “LINE
REPLACEMENT” section in this
manual.
◾
The line is tangled.
◾
Remove the battery; remove the line
from the trimmer head and rewind
following “RELOAD THE CUTTING
LINE” section in this manual.
◾
The line is too short.
◾
Remove the battery and pull the
lines manually while alternately
pressing down and releasing the
trimmer head.
Grass is wrapped
around trimmer
head and motor
housing.
◾
Cutting tall grass at ground
level.
◾
Cut tall grass from the top down,
removing no more than 8 inches in
each pass to prevent wrapping.
The blade is not
cutting the line.
◾
The line-cutting blade on
the edge of the guard has
become dull.
◾
Follow instructions to sharpen the
line-cutting blade with a le or
replace it with a new blade.
Cracks on the
trimmer head or
the spool retainer
comes loose from
spool base.
◾
The trimmer head is worn
out.
◾
Replace the trimmer head
immediately; follow the section
"TRIMMER HEAD REPLACEMENT"
in this manual.
◾
The nut that locks the
trimmer head is loose
◾
Open the trimmer head and use
an impact wrench (1/2”, 13mm) to
tighten the nut.