DeWalt DWOAS4ED - Operation; Blade Removal and Installation Procedures; Cut Depth Adjustment; Proper Hand Position

7
ENGLISH
Usage
1. Set cut depth at 1" (2.5 cm)", refer to Assembly and
AdjustmentsInstructions.
2. Before starting the edger, line up the tool so the edge
guide rests against the edge of the paved surface. The
wheel should be on the paved surface whenedging.
NOTE: When there is heavy overgrowth of grass over
the paved surface it may drag on the guard. An initial cut
may be required with the edger on the grass side. This
may require reducing the depth of cut (refer to Cut Depth
Adjustmentinstructions).
3. To avoid kickback of edger, tilt the handle down so the
blade is above theground.
4. Turn switch ON and allow blade to spin without
movingtool.
5. Slowly lift the handle to lower the blade, finding the edge
of the paved surface and start edging. Then move tool
forward slowly along edge of paved surface, keeping the
edge guide pressed lightly against the pavementedge.
‑ For the first edging each season, it is best to move
forward slowly because grass is thickest then.
Subsequent edging will be completed more rapidly.
If the tool slows down, back it up an inch or two
until the blade comes up to normal speed. During
edging some sparks may be generated from hitting
stones. This is normal. Do not attempt to edge when
the grass or soil is wet or moist—for electrical safety
and to prevent clogging of the blade chamber. If you
must edge under conditions that cause the blade
chamber to become clogged, release trigger, wait
for blade to come to complete stop. Remove battery
pack and remove clogged material with a stick. To
continue to operate the tool in a clogged condition
will seriously overload themotor.

CAUTION: Do not attempt to unclog the blade
chamber by dropping or tapping the tool on the
ground. This can damage the unit. Keep hands clear of
edge guide and blade when cleaning as these wear to
a very sharp point duringedging.

WARNING: Hold the tool using only the designated
gripping surfaces: The powerhead handle and the
auxiliary handle.

WARNING: Do not use the pole as a grippingsurface.
Proper hand position requires one hand on the powerhead
handle
13
and one hand on the auxiliary handle
14
.
Proper Hand Position (Fig.F)

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

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.
Edge Guide (Fig.E)
The edge guide is useful for cutting a straight path
alongsidewalks.
Cut Depth Adjustment (Fig.A, D)

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, or prior to
cleaning. An accidental start‑up can causeinjury.
The front wheel can be adjusted to allow a deeper or
shallower cut, and to increase the life of the blade.
1. Wait for blade to come to completestop.
2. Removebattery.
3. Loosen the cut depthknob
2
.
4. Slide the wheel up or down to the desiredheight.
NOTE: Lowering the wheel will decrease the cutting
depth. Rasing the wheel will increase the cutting depth.
The recommend depth foredging is 1" (2.5cm).
NOTE: Thick overgrowth may drag on the guard. Reduce
the cut depth to the minimum to help reduce thiseffect.
5. Tighten knobfirmly.
Removing the Cutting Blade
1. Align the shaft bushing hole
15
with the locking rod
slot
16
and insert a screwdriver (not supplied) into the
bushinghole. Hold the screwdriver inposition.
2. While holding the screwdriver, remove the flange nut
12
by turning it counterclockwise with a 13mm wrench
(not supplied) as shown in Fig.C
3. Remove the blade spacer
11
and the blade 
1
as shown
in Fig. C. Examine all pieces for damage and replace
ifnecessary.
Installing the New Cutting Blade
1. Install new blade 
1
on shoulder of the blade cutter shaft
bushing
17
as shown in Fig.C.
2. Align the shaft bushing hole
15
with the locking rod
slot
16
and insert a screwdriver into the bushinghole.
3. Hold the screwdriver inposition.
4. Install the blade spacer
11
on the blade so that the wide
flat side faces theblade.
5. Install flange nut
12
with the flange against the blade
spacer
11
and securely tighten with a13mm wrench
(notsupplied).
6. Tighten nut counterclockwise against the blade while
holding the locking rod:
‑ If using a torque wrench and an 13mm socket
tighten to: 325‑335 in lb, 27‑ 28ft. lb, 37‑ 38Nm.
‑ Without a torque wrench, use a 13mm closed‑end
or socket wrench, turning the nut until the blade
retainer is snug against the shaft bushing. Ensure that
the blade is installed correctly, then rotate the nut an
additional 1/4 to 1/2 turncounterclockwise.
7. Remove the screwdriver from the locking rod slot
16
.