DeWalt DW168F User manual
DW168F, DW177F, DW188F
Engines
Moteurs
Motores
INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIOY PÓLIZA
DE GARANTÍA.ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES
DE USAR EL PRODUCTO.
If you have questions or comments, contact us.
Pour toute question ou tout commentaire, nous contacter.
Si tiene dudas o comentarios, contáctenos.
1-800-4-De
2
A. Fuel cap (if equipped)
B. Fuel tank (if equipped)
C. Oil fill/dipstick
D. Oil drain
E. Crank shaft PTO
F. Air filter
G. On/Off switch (if equipped)
H. Set throttle control
I. Choke lever
J. Fuel valve (if equipped)
K. Recoil pull starter
L. Carburetor bowl drain
M. Carburetor bowl
N. Carbon canister (if equipped)
O. Low oil shutdown sensor
P. Debris Screen (if equipped)
Q. Cylinder head
R. Muffler (if equipped)
S. Spark Arrestor (if equipped)
T. Exhaust (muffler not supplied)
U. Spark plug
V Pilot valve connection (if equipped)
W. Valve cover
FIG. 1
H
I
J
K
F
H
K
U
C
E
W
D
Q
L
M
U
T
C
B
A
D
E
G
O
IW
F
Q
L
M
N
S
R
V
P
I
3
The definitions below describe the level of severity
for each signal word. Please read the manual and pay attention
to these symbols.
DANGER: Indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING: Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury.
CAUTION: Used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may result
in property damage.
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT
THIS OR ANY D
e
WALT TOOL, CALL US TOLL FREE AT:
1-800-4-DeWALT (1-800-433-9258)
SAVE THESE INSTRUCTIONS – This manual contains important
instructions for models DW168F, DW177F and DW188F that should
be followed during installation and maintenance of the engine.
DANGER: Carbon Monoxide. Using an engine indoors will
kill you in minutes. Engine exhaust contains high levels of
carbon monoxide (CO), a poisonous gas you cannot see or
smell. You may be breathing CO even if you DO NOT smell
engine exhaust.
• NEVER use an engine inside homes, garages, crawlspaces, or
other partly enclosed areas. Deadly levels of carbon monoxide
can build up in these areas. Using a fan or opening windows and
doors does NOT supply enough fresh air.
• ONLY use outdoors and far away from open windows, doors
and vents. These openings can pull in engine exhaust.
• Even when the engine is used correctly, CO may leak into your
home. ALWAYS use a battery-powered or battery backup CO
alarm (not supplied) in the home. Read and follow all direc-
tions for CO alarm before using. If you start to feel sick,
dizzy or weak at anytime, move to fresh air immediately. See a
doctor. You could have carbon monoxide poisoning.
WARNING: Do not operate this unit until you read and understand
this instruction manual and the tool instruction manual for safety,
operation and maintenance instructions.
WARNING: The engine exhaust from this product contains
chemicals known to the State of California to cause cancer,
birth defects or other reproductive harm. Wash hands after
handling.
IMPORTANT: These products are equipped with spark-arresting
mufflers. It is legally required in the state of California. It is a viola-
tion of California statutes section 130050 and/or sections 4442 and
4443 of the California Public Resources Code, unless the engine
is equipped with a spark arrester, as defined in section 4442, and
maintained in effective working order. Spark arresters are also
required on some U.S. Forest Service land and may also be legally
required under other statutes and ordinances.
4
DANGER: RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN HOW TO PREVENT IT
• Spilledgasolineandit’s
vapors can become ignited
from sparks from smoking
products, electrical arcing,
exhaust, flame, gases and
hot engine components such
as the muffler.
• Shutoffengineandallowitto
cool before removing cap and
adding fuel to the tank.
• Usecareinfillingtanktoavoid
spilling fuel. Make sure the
cap is secure and move unit
away from fueling area before
starting engine.
• Heatwillexpandfuelinthe
tank which could result in
spillage and possible fire
explosion.
• Keepmaximumfuellevel
below the shoulders on the
debris screen
to allow for
expansion.
• Non-functioningormissing
spark-arresting muffler may
cause fire.
• Makesurespark-arresting
muffler is in place and not
damaged.
• Replacespark-arresting
muffler if damaged
or missing.
• Addfueloutdoorsinawell
ventilated area. Make sure
there are no sources of
ignition, such as smoking
products near refueling
location.
• Operateengineinaclean,
dry, well ventilated area a
minimum of 48" (1.2 m) from
any building, object or wall.
Do not operate unit indoors
or in any confined area.
• Operateengineinanopen
area away from dry brush,
weeds or other combustible
materials
.
• Improperlystoredfuelcould
lead to accidental ignition.
Fuel improperly secured
could get into the hands of
children or other unqualified
persons.
• StorefuelinanOSHA-
approved container, in a
secure location away from
work area.
• Alwaysremaininattendance
with the engine when it is
operating.
5
DANGER: RISK TO BREATHING (ASPHYXIATION)
WHAT CAN HAPPEN HOW TO PREVENT IT
• Breathingexhaustfumes
will cause serious injury or
death!
Engine exhaust con-
tains high levels of carbon
monoxide (CO), a poison-
ous gas you cannot see or
smell.You may be breath-
ing CO even if you
smell engine exhaust.
• NEVER use an engine inside
homes, garages, crawlspaces
or other partly enclosed
areas. Deadly levels of carbon
monoxide can build up in
these areas. Using a fan or
opening windows and doors
does NOT supply enough
fresh air.
• use outdoors and far
away from open windows,
doors and vents. These
openings can pull in engine
exhaust.
•
Keep children, pets and others
away from area of operation.
• Alwayskeeptheexhaust
pipe free of foreign object
DANGER: RISK OF INJURY OR PROPERTY DAMAGE
WHEN TRANSPORTING OR STORING
WHAT CAN HAPPEN HOW TO PREVENT IT
• Oilandfuelcanleakorspill
and could result in fire or
breathing hazard; serious
injury or death can result.
Oil and fuel leaks will damage
carpet, paint or other surfaces
in vehicles or trailers. Spilled
oil and fuel increases risk of
injury.
• Nevertransportenginewith
fuel in the fuel system, fuel
valve open, or while engine is in
operation.
• Alwaysplaceengineon
a protective mat when
transporting to protect against
damage to vehicle from leaks.
Remove engine from vehicle
immediately upon arrival at your
destination. Always keep engine
level and never lie on its side.
• TransportfuelonlyinanOSHA
approved container.
6
WARNING: RISK OF HOT SURFACES
WHAT CAN HAPPEN HOW TO PREVENT IT
• Touchingexposedmetal
(muffler and other engine
parts) can result in serious
burns.
• Nevertouchanyexposed
metal parts on engine during
or immediately after operation.
The engine will remain hot
for several minutes after
operation.
• Donotreacharound
protective shrouds or attempt
maintenance until engine has
been allowed to cool.
WARNING:
RISK FROM MOVING PARTS
WHAT CAN HAPPEN HOW TO PREVENT IT
• Theenginecanstart
accidentally if the flywheel is
turned by hand or moved by
pulling on the pull starter.
• Alwaysdisconnectthespark
plug before performing
maintenance.
• Movingpartssuchasthe
pulley, flywheel, and belt can
cause serious injury if they
come into contact with you
or your clothing.
• Neveroperatethe
engine
with
guards or covers which are
damaged or removed.
• Keepyourhair,clothing,and
gloves away from moving parts.
Loose clothes, jewelry, or long
hair can be caught in moving
parts.
• Airventsmaycovermoving
parts and should be avoided
as well.
• Attemptingtooperateengine
with damaged or missing
parts or attempting to repair
engine with protective
shrouds removed can expose
you to moving parts and can
result in serious injury.
• Anyrepairsrequiredonthis
product should be performed
by a
DeWALT factory
service center or a DeWALT
authorized service center.
7
WARNING: RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN HOW TO PREVENT IT
•
Unsafe operation of your
engine could lead to
serious injury or death
to you or others.
•
Review and understand all
instructions and warnings in
this manual.
•
Become familiar with the opera-
tion and controls of the engine.
• Keepoperatingareaclearofall
persons, pets, and obstacles.
• Keepchildrenawayfromthe
engine at all times.
• Donotoperatetheengine
when fatigued or under the
influence of alcohol or drugs.
Stay alert at all times.
• Neverdefeatthesafety
features of this product.
• Equipareaofoperation
with a fire extinguisher.
• Donotoperateengine
with missing, broken, or
unauthorized parts.
• Neverstandontheengine.
CAUTION: RISK FROM NOISE
WHAT CAN HAPPEN HOW TO PREVENT IT
•
Under some conditions,
applications and duration of
use, noise from this product
may contribute to hearing
loss.
•
ALWAYS
wear certified
safety equipment: ANSI S12.6
(S3.19) hearing protection.
WARNING: Do not operate this unit until you read and understand
this instruction manual as well as the product instruction manual for
safety, operation and maintenance instructions.
This engine is only for use in DeWALT approved applications. If
used in unapproved applications, DeWALT is not responsible for
repairs or damage and the warranty is void. Call 1-800-4-D
e
WALT
(1-800-433-9258) for more information.
To mount engine correctly, refer to set-up instructions in shop
manual.
CAUTION:
The engine
IS NOT
filled with oil from the factory. Oil
must be added to the engine before operating or damage to engine
may occur.
SAE 10W-30 is recommended for general use. Refer to the
Viscosity-Ambient Temperature Chart for recommended oil within
yourlocalarea’saveragetemperaturerange. NOTE: Synthetic oil is
NOT recommended.
8
˚F -20 0 20 40 60 80 100
˚C -28.8 -17.7 -6.6 4.4 15.5 26.6 37.7
5W-30
10W-30
30
VISCOSITY-AMBIENT TEMPERATURE CHART
1. Refer to Viscosity-Ambient Temperature Chart above for correct
viscosity.
2. Remove dipstick.
3. Slowly add recommended oil, see specifications for oil capacity.
NOTE: If the oil is added too quickly, it will overflow and appear
to be full.
See under Maintenance for instructions.
TO ADD FUEL
WARNING: Risk of explosion or fire. Gasoline vapor is highly
flammable. Refuel outdoors only in well-ventilated areas. Do not
refuel or check gasoline level while the engine is running. Do not
store, spill or use gasoline near an open flame, a source of sparks
(such as welding) or near operating electrical equipment.
1. Remove fuel cap (A). AB
2. Add fresh, clean, regular unleaded gasoline
with a minimum of 86 octane to the fuel
tank (B). Do not fill above the shoulders
on the debris screen (P) as shown. NOTE:
The debris screen protects the engine from
dirt and debris, only remove screen when
cleaning. See
under Maintenance for instructions.
NOTE: Do not mix oil with gasoline.
3. Replace the fuel cap on the tank. Turn the P
cap clockwise until it stops.
OXYGENATED FUELS
Some conventional gasolines are blended with alcohol or an ether
compound. These gasolines are collectively referred to as oxygen-
ated fuels. To meet clean air standards, some areas of the United
States and Canada use oxygenated fuels to help reduce emis-
sions.
If you use an oxygenated fuel, be sure it is unleaded and meets the
86 minimum octane rating requirements. Before using an oxygen-
atedfuel,trytoconfirmthefuel’scontents.Somestates/provinces
required this information to be posted on the pump.The following are
the EPA approved percentages of oxygenates:
10% by volume. You may use
gasoline containing up to 10% ethanol by volume. Gasoline contain-
ing ethanol may be marketed under the name gasohol.
CAUTION: Risk of property damage. DO NOT use E85 fuel.
15% by volume. You may use
gasoline containing up to 15% MTBE by volume.
5% by volume. You may use
gasoline containing up to 5% methanol by volume as long as it also
9
contains solvents and corrosion inhibitors to protect the fuel system.
Gasoline containing more than 5% methanol by volume may cause
starting and/or performance problems. It may also damage metal,
rubber and plastic parts of the engine or your fuel system.
If you notice any undesirable operating symptoms, try another
service station or switch to another brand of gasoline.
NOTE: Fuel system damage or performance problems result-
ing from the use of an oxygenated fuel containing more than the
percentages of oxygenates mentioned above are not covered under
warranty.
DANGER: Risk of breathing. Exhaust from the gasoline engine
contains deadly carbon monoxide, which is odorless and toxic.
Operate engine only outside in clean, dry, well-ventilated areas.
NOISE CONSIDERATIONS
Consult local officials for information regarding acceptable noise
levels in your area.
1. Place unit on level surface.
2. Check engine oil. See
under
Maintenance
.
CAUTION:
Do not operate engine without oil or with inadequate oil.
DeWA LT is not responsible for engine failure caused by inadequate
oil.
3. Check fuel level.
4. See product manual for specific starting procedures.
NOTE: If any unusual noise or vibration is noticed, stop the engine
and refer to the troubleshooting section as well as the shop
manual.
At high altitude, the standard carburetor air-fuel mixture will be too
rich. Performance will decrease and fuel consumption will increase.
A very rich mixture will also foul the spark plug and cause hard
starting.
High altitude performance can be improved by specific modifica-
tions to the carburetor. If you always operate your engine at altitudes
above 1,524 meters (5,000 feet), have your authorized service cen-
ter perform a carburetor modification.
Even with a carburetor modification, engine horsepower will decrease
about 3.5% for each 300 meter (1,000 feet) increase in altitude.The
effect of altitude on horsepower will be greater than this if no car-
buretor modification is made. A decrease in engine horsepower will
decrease the power output of the engine.
NOTE: When the carburetor has been modified for high altitude
operation, the air-fuel mixture will be too lean for low altitude use. If
the engine is used at low altitudes after a carburetor modification, the
carburetor may cause the engine to overheat and result in serious
engine damage. For use at low altitudes, have your authorized ser-
vice center return the carburetor to original factory specifications.
WARNING: When cleaning, use only mild soap and a damp cloth
on plastic parts. Many household cleaners contain chemicals which
could seriously damage plastic. Also, do not use gasoline, turpen-
tine, lacquer or paint thinner, dry cleaning fluids or similar products
which may seriously damage plastic parts. Never let any liquid get
inside the engine; never immerse engine into a liquid.
The following procedures must be followed when maintenance or
service is performed on the engine.
Any service operations not included in this section should be performed
by a DeWALT factory service center or a DeWALT authorized service
center.
10
This engine is only for use in 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-D
e
WALT
(1-800-433-9258) for more information.
PROCEDURE
100 hours
50 hours
(whichever
comes first)
150 hours
(whichever
comes first)
500 hours
Clean air filter (3)
X
Check oil level
X
Change oil (1,2,3)
X
Clean spark plug
X
Cleanengine’sexterior
X
Check and adjust valve clearance
(.15 mm intake, .2 mm exhaust) (2)
X
Clean spark
arrester (if equipped)
X
Clean debris screen (if equipped)
X
1. The engine oil must be changed after 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 instructions.To order a shop
manual call 1-800-4-DeWALT.
3.
Perform more frequently in dusty or humid conditions
WARNING: 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 cool prior to servicing.
A dirty air cleaner will restrict airflow to the carburetor. To prevent
carburetor malfunction, service the air filter regularly. Service more
frequently 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.
WARNING: Risk of fire. Do not operate without air filter.
TO CLEAN THE ELEMENTS
DW168F-2E, DW177F-E, DW168F-2H, DW177F-H
1. Remove the wing nut (Y) Y
X
Y
Y
AA
Z
and the air filter
cover
(X)
.
2. Remove the second wing
nut (Y) and remove the
filter (Z).
3. Remove the foam-type
pre-filter (AA) from the
filter (Z).
4. Inspect foam and paper
elements. Replace them if damaged.
TO CLEAN THE ELEMENTS
Wash element in warm, soapy water.Then saturate
it in clean engine oil. Squeeze the element to remove excess oil.
Clean element by tapping gently to remove dust.
Use compressed air to blow off dust.
WARNING: When using compressed air, user always must wear
eye protection that conforms to ANSI Z87.1. (CAN/CSA Z94.3).
11
Never use oil. Always blow the element from the inside. If using
compressed air keep the air pressure less than 30 psi.
Place the foam pre-filter over the paper element and reinstall it onto
the engine.
DW168F-2F, DW177F-F, DW188F
1. Unsnap the air filter cover clips and remove
F
the air cleaner cover.
2. Remove the element from air filter.
3. Wash element (BB) in a solution of
household detergent and warm water,
then rinse thoroughly, or wash in nonflam-
mable or high flash point solvent. Allow
the element to dry thoroughly.
4. Soak the element in clean engine oil and BB
squeeze out the excess oil. NOTE: The
engine will smoke during initial start-up if too
much oil is left in the element.
5. Reinstall the air filter element and snap air
filter cover in place.
Warning: 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 cool prior to servicing.
1. Place unit on a flat level surface.
2. Remove oil fill/dipstick (C) and wipe clean.
3. Reinsert oil fill/dipstick fully into oil fill port and tighten. Allow oil
to collect on the dipstick for a few seconds.
4. Remove oil fill/ CC
CC
dipstick to read oil
level. If oil falls
below top of pattern
on dipstick, add oil.
NOTE: Patterns
(CC) may differ
according to engine.
NOTE: When filling the crankcase, allow the oil to flow very
slowly. If the oil is added too quickly, it will overflow and appear
to be full.
5. Replace dipstick and tighten securely.
NOTE: Engine oil contains substances that are regulated and must
be disposed of in accordance with local, state, provincial and federal
laws and regulations.
1. Disconnect spark plug wire.
2. Locate a suitable container under oil drain plug (D).
3. Remove the oil fill/dipstick (C) from crankcase.
4. Remove the oil drain plug (D).
5. Allow ample time for all oil to drain out.
6. Install the oil drain plug.
7. Fill with recommended oil, refer to under
Assembly.
8. Replace dipstick and tighten securely.
9. Reconnect spark plug wire.
10. Dispose of oil according to local, state and federal laws and
regulations.
12
Use recommended spark plugs, see specifications for correct spark
plug. To ensure proper engine operation, the spark plug must be
properly gapped and free of deposits.
WARNING:If the engine has been running, the muffler will be very
hot. To reduce the risk of injury, allow cooling before proceeding.
1. Remove the spark plug cap.
2. Clean any dirt from around the spark plug base.
3. Use a spark plug wrench (not supplied) to remove the spark
plug.
4. Visually inspect the spark plug. Replace it if the insulator is
cracked or chipped. Clean the spark plug with a wire brush if it is
going to be reused.
WARNING:
Always wear certified safety equipment: ANSI Z87.1 eye
protection (CAN/CSA Z94.3) with side shields.
5. Measure the plug gap with a feeler gauge (DD).
DD
Correct as necessary by carefully bending the side
electrode. The gap should be: 0.70–0.80 mm
(0.028–0.031 in).
6. Make sure the spark plug washer is in good
condition. Thread the spark plug in by hand to
prevent cross threading.
7. After the spark plug is seated, tighten with a spark
plug wrench to compress the washer. If installing a
new spark plug, tighten the spark plug 1/2 turn after
it seats to compress the washer. If reinstalling a used spark plug,
tighten 1/8–1/4 turn after the spark plug seats to compress the
washer. Do not overtighten.
8. Securely replace spark plug cap.
NOTE: The spark plug must be securely tightened. An improperly
tightened spark plug can become very hot and could damage the
engine. Never use spark plugs which have an improper heat range.
Use only the recommended spark plugs or equivalent.
WARNING: Risk of explosion or fire. DO NOT operate engine
without spark arrestor (S).
WARNING: If the engine has been running, the muffler will be
very hot. To reduce the risk of injury, allow engine to cool before
proceeding.
NOTE: The spark arrester must be serviced every 100 hours to
maintain its efficiency.
1. Remove the spark arrestor screws (EE) and remove the spark
arrestor (S).
S
S
EE
2. Use brush to remove carbon deposits from the spark arrester
screen. Inspect the spark arrester screen for holes or tears.
Replace the spark arrester if necessary.
WARNING:
Always wear certified safety equipment: ANSI Z87.1 eye
protection (CAN/CSA Z94.3) with side shields when removing carbon
deposits.
13
1. Place the fuel valve lever (J, if equipped) in the closed position.
2. Place an
OSHA-approved container suitable for fuel under the
carburetor bowl (M).
NOTE:
Using a funnel will allow the fuel to flow
into the container with less spillage.
3. Remove the carburetor bowl drain (L).
4. Fuel will drain from carburetor bowl.
5. When drained, replace carburetor bowl drain.
WARNING: Risk of explosion or fire. Gasoline vapor is highly flam-
mable. Refuel outdoors only in well-ventilated areas. Do not refuel or
check gasoline level while the engine is running. Do not store, spill, or
use gasoline near an open flame, a source of sparks (such as weld-
ing), or near operating electrical equipment.
1. Remove fuel cap (A).
2. Remove debris screen (P). P
A
3.
Clean debris screen. Use compressed
air to blow off debris.
WARNING: When using compressed
air, user always must wear eye protec-
tion that conforms to ANSI Z87.1. (CAN/
CSA Z94.3).
4. Replace debris screen and fuel cap.
WARNING: If the engine has been running, the muffler will be
very hot. To reduce the risk of injury, allow engine to cool before
proceeding.
If storing the unit for more than thirty days drain all fuel out of fuel
lines, tank and carburetor bowl. Drain oil and refill with fresh, clean
oil. IMPORTANT: Fuel will oxidize and deteriorate in storage. If fuel
is allowed to deteriorate during storage the carburetor and fuel
related parts will need to be serviced. NOTE: Fuel stabilizer can
beusedtolengthenthefuellife,followthefuelstabilizer’srecom-
mended instructions
Please have the following information available for all service calls:
Model Number ____________ Serial Number ___________
Date and Place of Purchase ______________________________
To assure product SAFETY and RELIABILITY, repairs, maintenance
and adjustment should be performed by a D
e
WALT factory service
center, a D
e
WALT authorized service center or other qualified
service personnel. Always use identical replacement parts.
DeWALT engines are warranted for two years from date of purchase.
We will repair, without charge, any defects due to faulty materials or
workmanship. For warranty repair information, call 1-800-4-D
e
WALT.
This warranty does not apply to accessories or damage caused
where repairs have been made or attempted by others.This warranty
gives you specific legal rights and you may have other rights which
vary in certain states or provinces.
LATIN AMERICA: This warranty does not apply to products sold
in Latin America. For products sold in Latin America, see country
specific warranty information contained either in the packaging, call
the local company or see website for warranty information.
14
FREE WARNING LABEL REPLACEMENT: If your warning labels
become illegible or are missing, call 1-800-4-D
e
WALT for a free
replacement.
This section provides a list of the more frequently encountered
malfunctions, their causes and corrective actions. The operator or
maintenance personnel can perform some corrective actions, and
others may require the assistance of a qualified DeWALT technician
or your dealer.
Engine will not start ........................ 1,3,4,5,6,7,8,9,10,11,19
Engine does not continue to
run after starting ..................................................................
................................................................ 1,3,5,6,9,10,12,19
Knocking noise ................................................................ 14
Over speed or low speed.................................. 15.16,17,18
Low power...................................................... 2,10,13,14,18
1Low or no fuel Add fuel
2Bad fuel Drain fuel tank and replace with
fresh, clean, regular unleaded
gasoline with a minimum of
86 octane
3Low oil Add oil
4 On/Off switch is in
the OFF position Place in ON position
5Choke in the wrong
position Adjust choke accordingly
6Fuel valve in
CLOSED position Place in OPEN position
7 Low battery
(if equipped) Charge the battery
8Faulty spark plug Replace spark plug
9 Spark plug cap
loose Attach spark plug cap securely
15
10 No or low
compression Tighten spark plug. If problem
is not corrected, contact a
DeWALT factory service center
or a DeWALT authorized service
center.
11 No spark Check spark plug wire. If
problem is not corrected, contact
a DeWALT factory service center
or a DeWALT authorized service
center.
12 Spark plug fouling is
sooty or sticky black a. Clean spark plug. See
under Maintenance.
b. Check spark plug gap, adjust
if needed. See
under Maintenance.
c. Replace spark plug. See
.
d. If engine still fails to start,
contact a DeWALT factory
service center or a DeWALT
authorized service center.
13 Dirty air filter Clean or replace the air filter
elements
14 Improper valve
clearances Reset valve clearances. Contact
a DeWALT factory service center
or a DeWALT authorized service
center.
15 Governor linkage
stuck or bent Contact a DeWALT factory
service center or a DeWALT
authorized service center.
16 Throttle shaft stuck Contact a DeWALT factory
service center or a DeWALT
authorized service center.
17 Governor spring
bent or lost Contact a DeWALT factory
service center or a DeWALT
authorized service center.
18 Spark arrester
clogged Clean and replace
19 Dirty carburetor Contact a DeWALT factory
service center or a DeWALT
authorized service center.
THE FOLLOWING WARRANTY APPLIES ONLY TO
PRODUCTS MANUFACTURED TO
MEET CALIFORNIA AND UNITED STATES
ENVIROMENTAL PROTECTION AGENCY
SPECIFICATIONS, WHICH ARE DISTRIBUTED AND SOLD
Your warranty rights and obligations: The California Air Resources
Board, the United States Environmental Protection Agency and
DeWALT, are pleased to explain the emission control system warranty
on your 2008 model year small off-road engine. In the United States
and California, new small off-road engines must be designed, built and
equippedtomeettheState’sstringentantismogstandards.DeWALT
16
must warrant the emission control system on your small off-road engine
for the periods of time listed below provided there has been no abuse,
neglect or improper maintenance of your small off-road engine.
Your emission control system may include parts such as the carbure-
tor or fuel injection system, the ignition system, and catalytic converter.
Also included may be hoses, belts, connectors and other emission
related assemblies.
Where a warrantable condition exists, DeWALT will repair your small
off-road engine at no cost to you including diagnosis, parts and labor.
Manufacturer’s warranty coverage: The 1995 and later small off-
road engines are warranted for two years. If any emission related part
on your engine is defective, the part will be repaired or replaced by
DeWALT.
Owner’s warranty responsibilities: As the small off-road engine
owner, you are responsible for the performance of the required main-
tenancelistedinyourowner’smanual.DeWALT recommends that you
retain all receipts covering maintenance on your small off-road engine,
but DeWALT cannot deny warranty solely for the lack of receipts or for
your failure to ensure the performance of all scheduled maintenance.
As the small off-road engine owner, you should however be aware that
DeWALT may deny you warranty coverage if your small off-road engine
or a part has failed due to abuse, neglect, improper maintenance or
unapproved modifications.
You are responsible for presenting your small off-road engine to
a DeWALT distribution center as soon as a problem exists. The
warranty repairs should be completed in a reasonable amount of time,
not to exceed 30 days.
If you have any questions regarding your warranty rights and responsi-
bilities, you should contact DeWALT Industrial Tool Co., Phone number
1-800-4-DeWALT (1-800-433-9258), or visit DeWALT website at www.
dewalt.com for more information and assistance.
Emission Control System Warranty (ECS Warranty) for 1997 and later
model engines
(a) This warranty shall apply to 1997 and later model
year engines. The ECS Warranty Period shall begin on the date
the new engine or equipment is purchased by/delivered to its
ultimate purchaser and shall continue for 24 consecutive months
thereafter.
(b) DeWALT warrants to
the ultimate purchaser of the new engine or equipments and each
subsequent purchaser for a two-year period.
(1) Designed, built and equipped so as to conform with all appli-
cable regulations adopted by the EPA and CARB pursuant to
their respective authority, and
(2) Free from defects in materials and workmanship, which, at
any time during the ECS Warranty Period, may cause a war-
ranted emissions-related part to fail to be identical in all material
respectstothepartasdescribedintheenginemanufacturer’s
application for certification.
The ECS Warranty only pertains to emissions-related parts on
your engine, as follows:
(1) Any warranted, emissions-related parts that are not scheduled for
replacementasrequiredmaintenanceintheOwner’sManualmust
be warranted for the ECS Warranty Period. If any such part fails
during the ECS Warranty Period, it shall be repaired or replaced
by DeWALT according to Subsection (4) below. Any such part
repaired or replaced under the ECS Warranty shall be warranted
for the remainder of the ECS Warranty Period.
(2) Any warranted, emissions-related part that is scheduled only for
regular inspection as specified in the Owner’s Manual must be
warranted for the ECS Warranty Period. A statement in such writ-
ten instructions to the effect of “repair or replace as necessary”
17
shall not reduce the ECS Warranty Period. Any such part repaired
or replaced under the ECS Warranty shall be warranted for the
remainder of the ECS Warranty Period.
(3) Any warranted, emissions-related part that is scheduled for
replacement as required maintenance in the Owner’s Manual
shall be warranted for the period of time prior to the first scheduled
replacement point for that part. If the part fails prior to the first
scheduled replacement, the part shall be repaired or replaced by
DeWALT according to Subsection (4) below. Any such emissions-
related part repaired or replaced under the ECS Warranty shall be
warranted for the remainder of the ECS Warranty Period prior to
the first scheduled replacement point for such emissions-related
part.
(4) Repair or replacement of any warranted, emissions-related part
under this ECS Warranty shall be performed at no charge to
the owner at a DeWALT Authorized Warranty Service Facility.
The warranty services or repairs must be provided at all
manufacturer distribution centers that are franchised to service the
subject engines.
(5) When the engine is inspected by a DeWALT Authorized Warranty
Service Facility, the owner shall not be held responsible for diag-
nostic costs if the repair is deemed warrantable.
(6) DeWALT shall be liable for damages to other original engine com-
ponents or approved modifications proximately caused by a failure
under warranty of any emission-related part covered by the ECS
Warranty.
(7) Throughout the ECS Warranty Period, DeWALT shall maintain a
supply of warranted emission-related parts sufficient to meet the
expected demand for such emission-related parts.
(8) Any replacement part may be used in the performance of any
Warranty maintenance or repairs and will be provided without
charge to the ultimate purchaser. Such use shall not reduce
DeWALT’sECSwarrantyobligations.
(9) Add-on or modified parts that are not exempted by the Air
Resources Board may not be used. Such use will be grounds for
disallowing a warranty claim made in accordance with this article.
DeWALT will not be liable under this article to warrant failures of
warranted parts caused by the use of such an add-on or modified
part.
EMISSION RELATED PARTS INCLUDE THE FOLLOWING:
1) Fuel Metering System:
a) Gasoline carburetor assembly and its internal components.
b) Fuel filter (if equipped)
c) Carburetor gaskets
d) Fuel pump (if equipped)
2) Air Induction System including:
a) Intake pipe/manifold
b) Air cleaner
3) Ignition System including:
a) Spark plug
b) Ignition module/coil
4) Miscellaneous Items Used in Above Systems
a) Vacuum, temperature, and time sensitive valves and switches.
b) Hoses, belts, connectors, and assemblies.
5) Evaporate Emissions Control
a) Fuel Hose certificated for CARB evaporative emission of 2007.
b) Fuel hose clamp
c) carbon canister (if equipped)
d) Roll over valve (if equipped)
e) Fuel tank (if equipped)
f) Fuel cap (if equipped)
6) Exhaust Emissions Control
a) catalytic converter (if equipped)
18
ENGINE SPECIFICATIONS DW168F-2E DW177FD-E DW168F-2H DW177F-H DW188F-H DW168F-2F DW177F-F DW188F-F
(approximate) 38 lbs.
(17.38 kg) 59 lbs.
(26.70 kg) 38 lbs.
(17.38 kg) 59 lbs.
(26.70 kg) 72 lbs.
(32.80 kg) 31 lbs.
(13.87 kg) 53 lbs.
(24.0 kg) 69 lbs.
(31.50 kg)
(LxWxH) For dimensions, see shop manual installation drawings
Air cooled, 4 cycle single cylinder, spark ignited
Regular, unleaded gasoline (minimum 86 octane)
(cc) 196 270 196 270 389 196 270 389
Air compressor Pressure washer Generator
Horsepower (*Gross HP)
(hp @ rpm)
*6.5 @3400 *9 @ 3400 *6.5 @3600 *9 @ 3600 *13 @ 3600 *6.5@ 3600 *9 @ 3600 *13 @ 3600
(gallons/liters) .95/3.6 1.56/5.9 .95/3.6 1.56/5.9 1.93/7.3 Without
.63 qt/.60 l 1.2 qt/1.1 l .63 qt/.60 l 1.2 qt/1.1 l 1.2 qt/1.1 l .63 qt/.60 l 1.2 qt/1.1 l 1.2 qt/1.1 l
Foam element or paper
Equipped
Equipped
NGK: BP6ES, **BPR6ES, BPR6ES/AUTOLITE: 63/AC DELCO: R41XL, R42XLS, R43FS, R43XL, R43XLS, R44XLS, R45XLS or equivalent
0.028-0.031" (0.70-0.80 mm)
Without 12 V DC solenoid
Without 2 pole
Pneumatic Without 12 V DC
solenoid 12 V DC
relay
Without Equipped Without Equipped Equipped
< 25 or 30°
* Gross horsepower (HP). This horsepower rating represents the maximum output under laboratory conditions at 3600 RPM in accordance with SAE
(Society of Automotive Engineers) J1995 and should be used for comparison purposes only. Actual engine output will be lower and will vary depending
on the application, speed and other variables including altitude and temperature.
** This spark plug complies with the Canadian Standard ICES-002.
19
A. Bouchonduréservoird’essence
(le cas échéant)
B. Réservoird’essence(lecaséchéant)
C. Jauged’huile
D. Vidanged’huile
E. Carter de prise de force
F. Filtre à air
G. Commutateur marche/arrêt (le cas échéant)
H. Réglage de la commande des gaz
I. Levierd’étrangleur
J. Robinet à essence (le cas échéant)
K. Lanceur à rappel
L. Purge de la cuve du carburateur
M. Cuve du carburateur
N. Réservoir à charbon actif (le cas
échéant)
O. Capteurdebasniveaud’huilequi
commandel’arrêtmoteur
P. Filtre à débris (le cas échéant)
Q. Culasse
R. Silencieux (le cas échéant)
S. Pare-étincelles (le cas échéant)
T. Échappement (silencieux non fourni)
U. Bougied’allumage
V Connecteur du robinet à commande par pilote
(le cas échéant)
W. Couvercle de culasse
FIG. 1
H
I
J
K
F
H
K
U
C
E
W
D
Q
L
M
U
T
IW
F
Q
L
M
N
S
R
V
I
C
B
A
D
E
G
O
P
20
Les définitions ci-dessous décrivent le niveau de gravité pour
chaquesymbole.Veuillezlirelemoded’emploietporteruneatten-
tion particulière à ces symboles.
DANGER : Indique une situation dangereuse imminente qui, si
elle n’est pas évitée, causera la mort ou des blessures graves.
AVERTISSEMENT :
Indique une situation potentiellement dan-
gereuse qui, si elle n’est pas évitée, pourrait se solder par un
décès ou des blessures graves.
ATTENTION : Indique une situation potentiellement dangereuse
qui, si elle n’est pas évitée pourrait se solder par des blessures
mineures ou modérées.
ATTENTION : Utilisé sans le symbole d’alerte à la sécurité, indique
une situation potentiellement dangereuse qui, si elle n'est pas évi-
tée pourrait se solder par des dommages à la propriété.
POUR TOUTES QUESTIONS OU COMMENTAIRES
RELATIFS À L’OUTIL OU À PROPOS DETOUT AUTRE OUTIL
DeWALT, COMPOSER SANS FRAIS LE : 1-800-4-DeWALT
(1-800-433-9258)
CONSERVER CES DIRECTIVES – Ce manuel contient des direc-
tives importantes pour les modèles DW168F, DW177F et DW188F
qui devraient être respectées lors de l’installation et de l’entretien
du moteur.
DANGER : Monoxyde de carbone. Le fonctionnement
d’un moteur à l’intérieur vous tuera en quelques minutes.
L’échappement du moteur contient des niveaux élevés de
monoxyde de carbone (CO), un gaz toxique, inodore et invisible.
Il est possible que vous inhaliez du CO même EN L’ABSENCE
de l’odeur de l’échappement du moteur.
• NE JAMAIS utiliser un moteur à l’intérieur d’une habitation,
d’un garage, d’un vide sanitaire ou de tout espace partiellement
clos. Ces endroits peuvent accumuler des niveaux mortels de
monoxyde de carbone. L’utilisation d’un ventilateur ou l’ouverture
des fenêtres et portes NE FOURNIT pas assez d’air frais.
• Utiliser UNIQUEMENT à l’extérieur et loin de fenêtres, portes
et évents ouverts. En effets, ces ouvertures peuvent aspirer
l’échappement du moteur à l’intérieur d’un espace.
• Même lors de l’utilisation correcte du moteur, le CO pourrait
pénétrer dans votre maison. TOUJOURS utiliser un avertisseur
de CO alimenté à pile ou un avertisseur de CO de secours à
pile (non fourni) dans la maison. Lire et respecter toutes les
directives de l’avertisseur de CO avant son utilisation.
En cas de malaise, d’étourdissement ou de faiblesse, à tout
moment, se déplacer à l’air frais immédiatement. Consulter un
médecin. Ce sont des signes d’intoxication par le monoxyde de
carbone.
AVERTISSEMENT :Ne pas utiliser cet appareil avant d’avoir lu
et compris le présent mode d’emploi, et celui de l’outil ainsi que
l’intégralité des directives de sécurité, d’utilisation et d’entretien.
AVERTISSEMENT : L’échappement du moteur provenant de
ce produit contient des produits chimiques reconnus par l’État
de la Californie comme pouvant causer le cancer, des anomalies
congénitales et d’autres dangers pour la reproduction. Se laver
les mains après toute manipulation.
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