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This engine i s only forusein DEWALT
approved applications.
If
used in
unapproved applications, DEWALT is not responsible for
repairs or damage and the warranty if void. Call 1-800-4-DEWALT
(1-800-433-9258) for more information.
Maintenance
Chart
PROCEDURE
-._ _ _$
_" _ =r o =r
=-
Clean air liiter (3)
X
Check oil level
X
Change oil (1,2,3)
X
Clean spark plug
X
Clean engine's exlefior
X
Check and adjust valve clearance
X
(.15 mm intake, .2 mm exhaust) (2)
Clean spark
X
arrestor (it equipped)
Clean debris screen (if equipped)
I
X
1. The engine
oil must be changed
alter
the first 20 hours
of
operation. Thereafter
change
oil every 150 hours of operation
or monthly, whichever
comes first.
2. See DEWALT shop manual for detail instruclions. To order a shop
manual call t -800--4-DEWALT.
3. Perform more frequently industy or humid condi!ions
Clteaning
Air Fi_ter ERernent
(Fig.
t )
AWARNING:
Hot surfaces.
Risk of burn. Engine
and surrounding
parts are very hot, do not touch (see the Hot Surfaces
identified
in
Figure 1). Allow engine to coo! prior to servicing.
A dirty air cleaner
will restrict airflow
to the carburetor.
To prevent
carburetor
malfunction,
service the air filter regularly. Service
more
frequenlfy
when operating
the engine in extremely
dusty areas.
,&WARNING:
Using gasoline or flammable
solvent to clean the filter
element can cause a fire or explosion.
A WARNING:
Risk of fire. Do not operate without air filter.
TO CLEAN
THE ELEMENTS
DW16BF-2E,
DW177F-E,
DWI68F-2H,
DW177F-H
1. Remove the wing nut (Y)
y
,_
y
and
the
air
filter
cover (X).
2. Remove
the second
wing
_
y
nut (Y) and remove
the
_._.4,
filler (Z).
_.t_A
A
3. Remove
the
foam-type
*'_:;'_
pre-filter
(AA)
from
lhe
Z
filler (Z).
4. Inspect
foam and paper
elements.
Replace them if damaged.
TO CLEAN THE ELEMENTS
Foam element:
Wash element
in warm, soapy water.Then
saturate
it in clean engine oil. Squeeze
the element
to remove excess oil.
Paper element:
Clean element
by tapping
gently to remove
dust.
Use compressed
air to blow off dust.
A WARNING:
When using compressed
air, user always must wear
eye protection
that conforms
to ANSI Z87. t. (CAN/CSA
Z94.3).
lO
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