DeWalt DCMST561N - Assembly and Adjustments; Inserting and Removing Battery Pack; Extending, Folding Pole, and Handles; Attaching the Guard

12
ENGLISH
Proper hand position requires one hand on the main handle
14
and one hand on the auxiliary handle
4
.
Switching Trimmer On and Off (Fig. A)
To turn the appliance on, squeeze the lock-off button
2
and
then the variable speed trigger 
1
. To turn the appliance off,
release the variable speed trigger and the lock-offbutton.

WARNING: Never attempt to lock the trigger in the
onposition.
Speed Control Switch (Fig. A)
This string trimmer gives you the choice to operate at a
more efficient speed to extend the runtime for larger jobs, or
accelerate the trimmer speed for high-performancecutting.
To extend runtime, push the speed control switch
3
forward
toward the auxiliary handle
4
into the "LO" position. This mode
is best for larger projects that require more time tocomplete.
To accelerate the trimmer, pull the speed control switch back
toward the battery housing
11
into the "HI" position. This mode
Proper Hand Position (Fig. G)

WARNING: To reduce the risk of serious personal injury,
ALWAYS use proper hand position asshown.

WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
suddenreaction.
OPERATION
Instructions for Use

WARNING: Always observe the safety instructions and
applicableregulations.

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start-up can cause injury.
Extending and Folding the Pole (Fig. A, C, P)

WARNING: To reduce the risk of injury, do not operate the
unit while folded. The unit must be fully extended and the
pole clasp secured before the battery is inserted. Remove
battery before folding the unit. Fold unit completely until
it locks inplace.
1. To lock pole into straight use position, first ensure battery
has been removed. Then flip up the locking lever
6
rotate
pole latch
7
forward and place the pole clasp
8
over the
clasp catch
20
. Rotate the pole latch
7
backwards until it
locks securely into position. Check the locking lever to make
sure it is properly locked inplace.
2. To fold the pole for storage or transportation, first ensure
battery has been removed. Then flip up the locking
lever 
6
, rotate pole latch 
7
forward and l ift the pole
clasp
8
up and over the clasp catch
20
. Fold the pole
completely until the guard
9
securely locks into place
over the rear of the battery housing
11
.
Inserting and Removing the Battery Pack
from the Tool (Fig. B)
NOTE: Make sure your battery pack
12
is fullycharged.
To Install the Battery Pack into the Tool Handle
1. Align the battery pack
12
with the rails inside the tool’s
handle (Fig. B).
2. Slide it into the handle until the battery pack is firmly seated
in the tool and ensure that you hear the lock snap intoplace.
To Remove the Battery Pack from the Tool
1. Press the release button
13
and firmly pull the battery pack
out of the toolhandle.
2. Insert battery pack into the charger as described in the
charger section of thismanual.
Fuel Gauge Battery Packs (Fig. B)
Some DeWALT battery packs include a fuel gauge which
consists of three green LED lights that indicate the level of
charge remaining in the batterypack.
To actuate the fuel gauge, press and hold the fuel gauge
button
35
. A combination of the three green LED lights will
illuminate designating the level of charge left. When the level
of charge in the battery is below the usable limit, the fuel gauge
will not illuminate and the battery will need to berecharged.
NOTE: The fuel gauge is only an indication of the charge left on
the battery pack. It does not indicate tool functionality and is
subject to variation based on product components, temperature
and end-userapplication.
ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start-up can causeinjury.

WARNING: Use only DeWALT battery packs andchargers.
Attaching the Auxiliary Handle (Fig. A, D)
1. Place the auxiliary handle
4
on top of the handle base
23
so the upper trimmer pole 
15
is betweenthem.
2. Hold the auxiliary handle in place and slide the handle
bolts
24
into the handle from the top, threading them into
the handlebase.
3. Tighten the handle bolts with the supplied hex wrench .
Ensure the handle is securelyattached.
Attaching Guard (Fig. E, F)

WARNING: Never remove the guard. Damage or personal
injury couldresult.

WARNING: NEVER OPERATE appliance WITHOUT
GUARD FIRMLY IN PLACE. The guard must always be
properly attached on the appliance to protect theuser.
1. Assemble the guard
9
to the motor housing
5
.
2. Using a crosshead screwdriver, insert the four guard
screws
21
and tightensecurely.