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Helpful Trimming Tips
• Use the tip of the string to do the cutting; do not force
string head into uncut grass.
• Wire and picket fences cause extra string wear, even
breakage. Stone and brick walls, curbs, and wood may wear
string rapidly.
• Do not allow spool cap to drag on ground or other surfaces.
• In long growth, cut from the top down and do not exceed
12" (300 mm) high.
• Keep trimmer tilted toward the area being cut; this is the
best cutting area.
• The trimmer spins counterclockwise when viewed from
behind and above. Cutting from right to left will throw
debris toward the guard and catch the trimmings. It is
recommended to cut from right to left when near gardens
or flower beds as this will help to keep trimmings from
being thrown into those areas. Cutting from left to right will
throw debris away from the guard. Use this method when
debris location is not important.
• Avoid trees and shrubs. Tree bark, wood moldings, siding,
and fence posts can easily be damaged by the string.
MAINTENANCE
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. An accidental start‑up can
cause injury.
Your D
WALT power tool has been designed to operate
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over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper
tool care and regular cleaning.
Applying Grease (Fig. W)
The DCST981 needs to be greased after every 100 hours
of use.
1. Using a 5 mm hex wrench (not included), remove the
grease port screw
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and motor grease port screw
2. Apply a small amount (3-5 grams) of D
grease
into the ports as shown in Fig. W.
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3. Reinstall the port screws
wrench (not supplied) to tighten the screws.
Cleaning
WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the risk of eye
injury, always wear ANSI Z87.1 approved eye protection when
performing this procedure.
WARNING: Never use solvents or other harsh chemicals
for cleaning the non‑metallic parts of the tool. These chemicals
may weaken the plastic materials used in these parts. Use a
cloth dampened only with water and mild soap. Never let any
liquid get inside the tool; never immerse any part of the tool
into a liquid.
Accessories
WARNING: Since accessories, other than those offered by
D
WALT, have not been tested with this product, use of such
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accessories with this product could be hazardous. To reduce
the risk of injury, only D
WALT‑recommended accessories
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should be used with this product.
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WALT 30301914
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and
, using a 5 mm hex
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Recommended accessories for use with your product are
available at extra cost from your local dealer or authorized
service center. If you need assistance in locating any
accessory, please contact D
(1‑800‑433‑9258) or visit our website: www.dewalt.com.
WARNING: The use of any accessory not recommended
by D
WALT for use with this appliance could be hazardous.
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WARNING: Do not use any blades, or any accessory or
attachment other than those recommended by D
this trimmer. Serious injury or product damage may result.
Reloading the Cutting Line (Fig. X, Y)
CAUTION: Use only D
and line. Using any other manufacturer's line can reduce
performance, damage the trimmer or cause personal injury.
Your trimmer comes with 0.095" (2.4 mm) but can also use
0.080" (2.0 mm) or 0.105" (2.7 mm) diameter nylon 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 D
WALT replacement line. Do not use wire.
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1. Remove battery.
2. Cut a maximum length of 20 ft (6 m) of 0.105", 30 ft (9 m)
of 0.095" and 40 ft (12 m) of 0.080" cutting line.
3. Align the spool housing eyelets
on the spool grip cover
4. Thread one end of the trimmer line through an eyelet.
5. 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.
6. 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.
7. Continue winding until 5" (130 mm) of string remain on
.
each side of the spool housing as shown in Fig. Y.
Replacing Spool Assembly (Fig. Z)
1. Remove the battery.
2. Rotate the spool housing
spindle plate aligns with notch
the locking rod
16
into the hole, to prevent the spindle from turning.
3. Unscrew and remove the spool housing by turning the
spool grip cover
nOTE: Do not try to remove the spool housing by turning
the spool housing
4. Remove spindle plate
spool. Remove any dirt and grass from the gear case and
spindle plate.
5. Install spindle plate
is facing towards the gear case
6. Align the spindle plate hole
locking rod
or screwdriver back into the hole
16
thread the new spool housing counterclockwise.Securely
tighten the new spool housing onto the shaft
WALT. Call 1‑800‑4‑D
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WALT replacement spools
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with the arrow
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48
as shown in Fig. X.
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until the hole
31
in the gear case. Insert
or a screwdriver through the notch and
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clockwise.
15
.
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before installing a new
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onto the shaft
.
13
30
and notch
English
WALT
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WALT on
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30
in the
32
, so the notch
31
, insert the
and
30
32
.
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