56-VOLT LITHIUM-ION CORDLESS BRUSHLESS STRING TRIMMER — ST1510/ST1510-FC
28
TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
String trimmer fails
to start.
◾
The battery pack is not
attached to the trimmer.
◾
Attach the battery pack to the
trimmer.
◾
No electrical contact
between the trimmer and
the battery pack.
◾
Remove battery, check contacts and
reinstall the battery pack.
◾
The battery pack is
depleted.
◾
Charge the battery pack.
◾
The lock off trigger is not
being moved forward
before depressing the
switch trigger.
◾
Move the lock-off trigger forward
and then press the switch trigger.
String trimmer
stops while cutting.
◾
The guard is not mounted
on the trimmer, resulting in
an overly long cutting line
and motor overload.
◾
Remove the battery pack and mount
the guard on the trimmer.
◾
Heavy cutting line is used.
◾
Use recommended nylon cutting
line with diameter no greater than
0.095in. (2.4 mm).
◾
The motor shaft or trimmer
head is bound with grass.
◾
Stop the trimmer, remove the
battery, and remove the grass from
the motor shaft and trimmer head.
◾
The motor is overloaded.
◾
Remove the trimmer head from the
grass. The motor will recover to work
as soon as the load is removed.
When cutting, move the trimmer
head in and out of the grass to be
cut and remove no more than 8
inches of length in a single cut.
◾
The battery pack or string
trimmer is too hot.
◾
Cool the battery or string trimmer.
◾
The battery pack is
disconnected from the tool.
◾
Re-install the battery pack.
◾
The battery pack is depleted.
◾
Charge the battery pack.
◾
Unbalanced after
installation of cutting line.
◾
Tap the trimmer head to make the
rope length symmetrical.
