DeWalt DCMW220 - Mowing Tips; MAINTENANCE; Removing and Installing Blade

ENGLISH
12
Mowing Tips

WARNING: ALWAYS INSPECT AREA WHERE
MOWER IS TO BE USED AND REMOVE ALL
STONES, STICKS, WIRE, BONES, AND OTHER
DEBRIS WHICH MIGHT BE THROWN BY THE
ROTATINGBLADE.

WARNING: Mow across the face of slopes, never
up-and-down. Exercise extreme caution when
changing direction on slopes. Do not mow excessively
steep slopes. Always maintain goodfooting.
1. Release bail handle to turn mower “OFF” when crossing
any gravel area (stones can be thrown by the blade).
2. Set mower at highest cutting height when mowing
in rough ground or in tall weeds. Removing too much
grass at one time can cause the motor to be overloaded
and to stop. Refer to TroubleshootingSection.
3. If a grass collection bag
14
is used during the fast
growing season, the grass may tend to clog up at the
discharge opening. Release bail handle to turn mower
off, remove the safety key and battery packs. Remove
the catcher and shake the grass down to the back end
of the bag. Also clean out any grass or debris which may
be packed around the discharge opening. Replace the
grasscatcher.
4. If mower should start to vibrate abnormally, release bail
handle to turn mower off, remove the safety key and
battery packs. Check immediately for cause. Vibration
is a warning of trouble. Do not operate mower until a
service check has been made. Refer to Troubleshooting
section inthis manual.
5. For best cutting results, keep blade sharpened
andbalanced.
6. Inspect and thoroughly clean mower after each use as a
deck with caked grass will degrade performance.
7. ALWAYS RELEASE BAIL HANDLE TO TURN MOWER
OFF, REMOVE SAFETY KEY AND BATTERY PACKS
WHEN LEAVING IT UNATTENDED EVEN FOR A
SHORT PERIOD OFTIME.
The following suggestions will help you to obtain
optimum run time from your cordless mower:
• Slow down in areas where the grass is especially
long orthick.
• Avoid mowing when the grass is wet from rain or
dew-soaked.
• Cut your lawn frequently, especially during high
growthperiods.
NOTE: It is recommended that your mower be
recharged after use to prolong the battery life.
Frequent charging will not harm your battery, and
will ensure that the battery is fully charged and ready
for its next use. Storing battery not fully charged will
shorten batterylife.
MAINTENANCE

DANGER: To reduce the risk of serious personal
injury, turn unit off, remove safety key, and
remove battery packs before making any
adjustments or removing/installing attachments
or accessories. An accidental start-up can
causeinjury.
Removing and Installing Blade (Fig. O - Q)

DANGER: RISK OF INJURY. WHEN REASSEMBLING
THE BLADE SYSTEM, ENSURE EACH PART IS
REINSTALLED CORRECTLY, AS DESCRIBED BELOW.
IMPROPER ASSEMBLY OF THE BLADE OR OTHER PARTS
OF THE BLADE SYSTEM MAY CAUSE SERIOUSINJURY.

DANGER: To reduce the risk of serious personal
injury, turn unit off, remove safety key, and
remove battery packs before making any
adjustments or removing/installing attachments
or accessories. An accidental start-up can
causeinjury.
1. Cut a piece of 2x4 wood
24
(about 2 feet long)
(610mm) to keep blade from turning when removing
the flange nut 
25
.

WARNING: Use gloves and proper eye protection.
Turn the mower on its side. Be careful of sharp edges
of blade.
2. Position wood and unscrew flange nut 
25
counterclockwise with a 18 mm wrench
26
as shown
in Fig.O.
3. Remove square metal blade spacer 
27
, square plastic
blade insulator 
28
and blade 
29
as shown in Fig. P.
The blade fan
30
should not be removed. Examine all
pieces for damage and replace ifnecessary.
4. Install sharpened or new blade
29
on shoulder
31
of
the blade fan
30
as shown in Fig. P.
NOTE: When replacing sharpened or new blade on
shoulder
31
of blade fan
30
, make sure the “GRASS SIDE”
on the blade will be facing the ground when the mower is
returned to its normal upright position.
5. Install the plastic blade insulator
28
on the blade such
that the raised lips on one side engage the edges of
theblade.
6. Install the blade spacer
27
so that it sits inside the
raised lips on the other side of the blade insulator. Be
sure to align the flats in the hole of the blade spacer
with the flats of the shaft, rotating the blade and blade
insulator together as necessary.
7. Position piece of wood
24
to keep blade from turning
as shown in Fig. Q. Install flange nut
25
with the flange
against the blade spacer
27
and securely tighten with
a wrench.