Fuels/Refuelling - Dolmar PB-250 Manuel D'instructions Original

Fuels/Refuelling

Handling petroleum products
Utmost care is required when handling fuel. Fuel may contain substances
similar to solvents. Refuel either in a well ventilated area or outdoors. Do
not inhale fuel vapers, avoid any contact of fuel or oil with your skin.
Mineral oil, fuel, etc., products degrease your skin. If your skin comes in
contact with these substances repeatedly and for an extended period of
time, various skin diseases may result. In addition, allergic reactions are
known to occur. Eyes can be irritated by contact with oil, fuel, etc.
If oil comes into eyes, immediately wash them with clear water. If your eyes
are still irritated, see a doctor immediately!
Fuel and oil mixture
The engine of the blower is a high-efficiency two-stroke engine. It is run with
a mixture of fuel and two-stroke engine oil. The engine is designed to use
unleaded regular fuel with a min. octane value of 91 RON. If no such fuel
is available, you can use fuel with a higher octane value. This will not affect
the engine, but may cause poor operating behavior.
A similar situation will arise from the use of leaded fuel. To obtain optimum
engine performance and to protect your health and the environment, only
unleaded fuel should be used!
For engine lubrication use a two-stroke engine oil (quality grade: TC-3),
which is added to the fuel. The engine has been designed to use DOLMAR
two-stroke engine oil at mixture ratio of 50:1 to protect the environment. In
addition, a long service life and reliable operation with a minimum emission
of exhaust gasses is assured. It is absolutely essential to observe a mixture
ratio of 50:1 DOLMAR -stroke engine oil. Otherwise reliable function of the
blower cannot be guaranteed.
The correct mixture ratio:
Mix 50 parts gasoline with 1 part DOLMAR -stroke engine oil (see table
on right).
NOTE: For preparing the fuel-oil mixture first mix the entire
oil quantity with half of the fuel required in an ap-
proved can which meets or exceeds all local code
standards, then add the remaining fuel. Thoroughly
shake the mixture before filling it into the blower tank.
It is not wise to add more engine oil than specified to
ensure safe operation. This will only result in a higher
production of combustion residues which will pollute
the environment and clog the exhaust channel in the
cylinder, the spark plugs as well as the muffler. In ad-
dition, fuel consumption will rise and the performance
will be decreased.
Refuelling
Never perform refuelling operations in a closed, unventilated area.
The engine must be stopped and cooled down!
– Thoroughly clean the area around the gas cap, to prevent dirt from get-
ting into the fuel tank.
– Unscrew the gas cap and fill the tank with fuel.
– Never fill the fuel tank to the very top.
– Security screw on the gas cap.
– Wipe the screw plug and tank with an adsorbent after refuelling!
Allow cloths to dry and discard in a proper container.
Storage of fuel
Fuel cannot be stored for an unlimited period of time. Purchase only the
quantity required for a 4 week operating period. Only use approved fuel
storage containers.
Observe the Safety Instructions on page 4.
Gasoline
Premium unleaded
1,000 cm

5,000 cm (5 liters)

10,000 cm (10 liters)

11
50:1
0 cm
(1 liter)
100 cm
00 cm