DeWalt DWOAS4ED, Instruction Manual

English

6

Blade (Fig. C)

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.

WARNING:

 Wait for blade to come to complete stop.

The blade 

 1 

, spacer 

 11 

 and a hex head nut 

 12 

 should be 

attached to your edger in the order shown. Please check 
that the blade has been properly mounted before using your 
edger. The edger blade has two wear indicators that show 
when blade needs to be replaced.

nOTE: 

To increase blade life, keep initial cutting depth at 

minimum and increase depth setting as blade wears.

Blade Replacement

WARNING:

 Use gloves and proper eye protection. Turn 

the edger on its side. Be careful of sharp edges of blade. 

WARNING:

 Blade rotates momentarily after the switch 

is released.

1.  Remove battery.
2.  Remove edger attachment from the powerhead. Reverse 

the steps under 

Assembling the Edger Attachment to 

the Powerhead.

Assembling the Edger Attachment to the 

Powerhead (Fig. A, B, E)

1.  The upper powerhead pole 

 5 

 is equipped with three 

latching holes 

 6 

, 

 7 

, 

 8 

 for the latching button 

 9 

. 

2.  When installing the edger attachment pole 

 3 

 into the 

upper powerhead pole 

 5 

, use the arrows 

 10 

 to align 

the latching button 

 9 

 with latching hole 

 6 

, as shown 

in Fig. B 

nOTE:

 To properly engage the latching button 

 9 

 with 

the latching hole 

 6 

, slightly rotate the powerhead 

pole 

 5 

 and move it axially until the latching button 

engages the latching hole.  

DO nOT

 insert the latching button into latching hole 

 7 

, 

or 

 8 

.

Doing so will position the edger head in an 

incorrect orientation which could create a safety hazard. 
Latching holes  

 7 

 and 

 8 

 are for other attachments.

3.  Turn the knob 

 4 

 to secure the attachment.

4.  When properly assembled, it should look like Fig. E. If it 

does not, do not use, disassemble and re‑align the edger 
attachment 

 3 

 so the latching button 

 9 

 engages with 

latching hole 

 6 

 as shown in Fig. B.

WARNING:

 Always check to make sure that the knobs 

are completely secured in place. If the knobs are not 
completely secured it could result in the assemblies 
becoming disconnected creating a hazardous 
condition. Periodically check the connections to ensure 
that the knobs are completely secured in place.

nOTE: 

Ensure the attachment is fully engaged and the 

knob is fully tightened before operating. Check for proper 
engagement and tightness during use.

Powerhead (Fig. B)

(

D

e

WALT

 powerhead sold separately)

WARNING: 

To reduce risk of injury:

•  Before any use, be sure everyone using this product 

reads and understands all safety instructions and 
other information contained in the powerhead and 
attachment manuals.

•  Never apply power without an attachment being 

properly mounted to the powerhead.

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 attachment is designed such that the powerhead can 

separate from the edger attachment by turning the knob 

 4 

counterclockwise, depressing the latching button 

 9 

  and 

gently pulling them apart by their poles 

 3 

, 

 5 

.

This should only be done with the power switch off and the 
battery pack removed. Inside the upper powerhead pole 

 5 

is a mechanical coupling that will spin if the powerhead is 
turned on. This coupling can cause injury if contacted while 
the powerhead is operating.

ASSEMBLY AND ADJUSTMENTS

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.

The label on your tool may include the following symbols. The 
symbols and their definitions are as follows:

BPM ....................beats per minute
V ......................... volts
min .....................minutes

j

 or DC ............direct current

…/min ..............per minute
RPM .................... revolutions  per 

minute

A .........................amperes
Hz .......................hertz
W ........................watts
Wh ......................watt hours
no .......................no load speed
n .........................rated speed

c

 .....................safety alert symbol

h

 ..................... wear  respiratory 

protection

f

 ..................... wear eye protection

i

 ..................... Class II Construction 

(double insulated)

g

 ..................... wear  hearing 

protection

a

 ..................... read  all 

documentation

A

 .................... Hot  surface. 

Do not touch.

 ................... Do not expose the 

tool to rain or high 

humidity or leave 

outdoors while it 

is raining.

 ......... Keep bystanders 

100 ft. 

(30 m) away.

 .................. Beware  of  thrown 

objects

n

 ..................... avoid staring at 

light

l

 or AC............alternating current

Ah ....................... amp  hours

• 

Air vents often cover moving parts and should be 

avoided.

 Loose clothes, jewelry or long hair can be caught 

in moving parts.