DeWalt DW1681F Guide D'utilisation page 9

contains solvents and corrosion inhibitors toprotect the fuel s ystem.
Gasoline containing more than 5%methanol byvolume may cause
starting and/or performance problems, tt may also damage metal,
rubber and plastic p arts o fthe engine oryour f uel system.
If younotice anyundesirable operating symptoms, tryanother
service station orswitch toanother brand o fgasoline.
NOTE: Fuelsystem damage o r performance problems resulb
ingfrom theuseofanoxygenated fuelcontaining more than the
percentages ofoxygenates mentioned above a renot c overed under
warranty.
Location
,&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.
Preparation Foe' Use
1. Place unit on levet surface.
2. Check engine oil. See To Check Oil under Maintenance.
CAUTION: Do not operate engine without oil or with inadequate oil.
DEWALT is not responsible for engine failure caused by inadequate
oil.
3. Check fuel level.
4. See product manual forspecific starting procedures.
NOTE: If any unusuat noise or vibration is noticed, stop the engine
and refer to the troubleshooting section as well as the shop
manual.
High Agtitude Operating
At high a_titude, the standard carburetor air-fuel mixture wig be too
rich. Performance witt decrease and fuel consumption will increase.
A very rich mixture will atso 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 wit]
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.
MAgNTENANCtE
ilk 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 foUowed 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.