Dolmar MS-331 C Brush Cutter User Manual


 
10
FUELS/REFUELING
Handling fuel
Utmost care required when handling fuel. Fuel may contain substances similar to solvents. Refuel either in a well
ventilated room or outdoors.
Do not inhale fuel vapors, avoid any contact of fuel or oil with your skin.
Mineral oil products degrease you skin. If your skin contacts with these substances repeatedly and for an extended
period of time, it will desiccate. Various skin diseases may result. In addition, allergic reactions may occur. Eyes
can be irritated by contact with oil. If oil comes into your eyes, immediately wash them with clear water. If your eyes
are still irritated, see a doctor immediately.
Fuel and oil mixture
This brush-cutter (string-trimmer) is powered by a high-efficiency two-stroke engine being run with a mixture of fuel
and two-stroke engine oil. The engine is designed for unleaded gasoline intended for automotive use with an
octane rating of 87 or higher.
For lubricating the engine, use any brand of premium 2-stroke engine oil classified as grade ISO-L-EGD or JSAO-
FC to be added to the fuel. Using any other oil will shorten the engine life and increase the required maintenance.
It is absolutely required to observe a mixture ratio of 50 : 1 (2-stroke engine oil specified above), unless otherwise
reliable function of the brush cutter ( or string trimmer ) cannot be guaranteed.
Correct Fuel Mixture ( 50 : 1 )
Gasoline Oil
1 Gallon (US) 2.6 oz.
1 Liter 20 cc ( 20ml )
5 Liter 100cc ( 100ml )
Note :
When doing the fuel-oil mixture, first mix the entire oil quantity with half of the fuel required, then add the remaining fuel. Before filling it into the brush-cut-
ter ( string trimmer ) tank, thoroughly shake the mixture. It is not recommended to add more engine oil than specified to ensure safe operation. This will
result in a higher production of combustion residues which will pollute the environment and clog the exhaust channel in the cylinder as well as the muffler.
In addition, the fuel consumption will rise and the performance will decrease.
Refuelling
Follow the appropriate manners described on page 6.
Storage of Fuel
Fuel cannot be stored for an unlimited period of time.
Purchase only the quantity required for a 4 week operating period. Use only approved fuel storage containers.
CORRECT HANDLING OF MACHINE
Attachment of shoulder strap
Always wear the shoulder strap and adjust the strap length so that the cutter blade is kept parallel with the ground.
Detachment
The shoulder strap has a quick release latch. In an emergency, pull the red strap (A) to detach the machine from
you. Be extremely careful to maintain control of the machine at this time. Do not allow the machine to be deflected
toward you or anyone in the work vicinity.
WARNING : Failure to maintain complete control of the machine may result in serious bodily injury or death.
To reassemble, remove the spring clip (B) from the machine, place open end over the strap buckle (C) and then
insert the release blade (D).
STOP
Observe the Safety Instructions
on page 6.
B
D
A
C