DeWalt XR LI-ION DCMASST1 - Line Reloading and Guard Replacement; Reloading Cutting Line; Strap Adjustment and Battery Care; Strap Attachment and Battery Care

9
ENGLISH
Protecting the Environment
w
Separate collection. Products and batteries marked
with this symbol must not be disposed of with
normal householdwaste.
Products and batteries contain materials that
can be recovered or recycled reducing the demand for raw
materials. Please recycle electrical products and batteries
according to local provisions. Further information is available at
www.2helpU.com.
Rechargeable Battery Pack
This long life battery pack must be recharged when it fails
to produce sufficient power on jobs which were easily done
before. At the end of its technical life, discard it with due care for
ourenvironment:
• Run the battery pack down completely, then remove it from
thetool.
• Li‑Ion cells are recyclable. Take them to your dealer or a
local recycling station. The collected battery packs will be
recycled or disposed ofproperly.
Attaching and Adjusting the Shoulder Strap
(Fig. D, E)

WARNING: The strap(19 should only be slung over one
shoulder and not across the body. See Fig E.
A shoulder strap is recommended for any tool with a total
weight exceeding 6 kg. (Total weight includes the power head,
attachment, and battery.) A shoulder strap is available at an
additional cost from DeWALT, part number N502343. Attach
the strap to the tool as shown in Fig. D and adjust for proper
balance and support
1. Attach the strap mount.
2. Snap the shoulder strap latch 
21
onto the strap
mount
20
located on the unit, just in front of the ON/OFF
trigger as shown in Fig. D. Adjust the strap so it fits over
yourshoulder and provides proper balance andsupport.
1. Remove the spool housing as described in the Replacing
Spool Assemblysection.
2. Remove the two guard screws
10
shown in Fig.C.
3. Lift the guard off at an angle as shown in Fig.C.
4. To attached a new guard, slide the tab
24
of the new guard
under the lip
25
of the motor housing
26
, then lower the
back of the guard into place as shown in Fig.A.
5. Replace and securely tighten the two guard screws
10
.
6. Replace the spool housing as described in the Replacing
Spool Assemblysection.
Replacing Guard With Extended Coverage
Guard (Fig. A, C)
An extended coverage guard is available (sold separately) for
extra coverage if desired. Use DeWALT replacement guard Part
NumberN905733.

WARNING: Never operate appliance without guard firmly
inplace.
Reloading the Cutting Line (Fig. H, I)

WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories, when
replacing line, or prior to cleaning. An accidental
start‑up can causeinjury.

CAUTION: Use only DeWALT replacement spools
and line. Using any other manufacturer's line can
reduce performance, damage the trimmer or cause
personalinjury.
Your trimmer uses 2.0mm diameter line that is
spiral‑shaped with smooth round edges. Do not use other
size lines. This can degrade performance, cause damage to
the unit orinjury.

CAUTION: To avoid appliance damage, if the cutting line
protrudes beyond the trimming blade, cut it off so that it
just reaches theblade.
Use only DeWALT replacementline.
1. Removebattery.
2. Cut a max of 6 m length of of 2.0 mm trimmerline.
3. Align spool housing eyelets
17
with the arrow
18
on the
spool grip cover
14
as shown in FigureH.
4. Thread one end of the trimmer line through an eyelet. Guide
the line through to the second eyelet and continue to pull
the line through until there are equal lengths of string on
each side of the spoolhousing.
5. Secure the spool cap from moving with one hand. Using
your other hand, wind the string onto the spool by
rotating the spool grip cover counterclockwise. Continue
winding until 130mm of string remain on each side of the
spoolhousing as shown in Fig.I.
2. Unscrew and remove the spool housing by turning the
spool grip cover
14
clockwise.
NOTE: Do not try to remove the spool housing by turning
the spool housing
3
.
3. Remove spindle plate
16
before installing a new spool.
Remove any dirt and grass from the motor housing and
spindleplate.
4. Install spindle plate
16
onto the spindle
15
, so the double
D shaped retaining nut on the spindle sits inside the base of
the spindleplate.
5. Align the spindle plate hole and notch, insert the
screwdriver back into the hole and thread the new spool
housing counterclockwise. Securely tighten the new spool
housing onto the spindle
15
.