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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 

vapors, avoid any contact of fuel or oil with your skin.

Mineral oil 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 your 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 brushcutter 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 MAKITA two-stroke engine 

oil at mixture ratio of 25:1 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 25:1 MAKITA 2-stroke engine oil. 

Otherwise reliable function of the brushcutter cannot be guaranteed.

The correct mixture ratio:

Mix 25 parts gasoline with 1 part MAKITA 2-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 approved can which meets or exceeds 

all local code standards, then add the remaining fuel. Throughly shake 

the mixture before filling it into the brushcutter 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 addition, fuel consumption 

will rise and the performance will be decreased.

Refuelling

Never perform refuelling operations in a closed, unventilated area.

The engine must be switched off!

Thoroughly clean the area around the gas cap, to prevent dirt from getting into 

 

the fuel tank.

Unscrew the gas cap and fill the tank with fuel.

 

Never fill the fuel tank to the very top.

 

Securely screw on the gas cap.

 

Wipe the screw plug and tank with an absorbent 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!

25:1

+

Gasoline

(premium unleaded)

1,000 cc (1L)

5,000 cc (5L)

10,000 cc (10L)

40 cc

200 cc

400 cc

FUELS/REFUELING

12

Summary of Contents for RBC411U

Page 1: ...411 RBC411U INSTRUCTION MANUAL RBC411 RBC411U Important Read this instruction manual carefully before putting the brushcutter into operation and strictly observe the safety regulations Preserve instru...

Page 2: ...handle 9 Mounting of protector 10 Mounting of cutter blade 11 Fuels refueling 12 Correct handling of machine 13 Putting into operation 14 Resharpening the cutting tool 15 Maintenance schedule 16 Stora...

Page 3: ...with bushes or shrubs In order to avoid either head eye hand or foot injuries as well as to protect your hearing the following protective equipment and protective clothing must be used during operati...

Page 4: ...er put the hot brushcutter onto dry grass or onto any combustible materials Always install the approved cutting tool guard onto the equipment before starting the engine Otherwise contact with the cutt...

Page 5: ...r at great force and it may cause serious injury Kickback occurs particularly when applying the blade segment between 12 and 2 o clock to solids bushes and trees with 3 cm or larger diameter To avoid...

Page 6: ...ons to the equipment as this will endanger your safety The performance of maintenance or repair work by the user is limited to those activities as described in the instruction manual All other work is...

Page 7: ...in 1 10 000 Maximum spindle speed corresponding min 1 6 800 Fuel consumption kg h 0 98 32 8 oz h Specific fuel consumption g kWh 1134 5 29 9 oz kwh Idling speed min 1 2 800 Clutch engagement speed min...

Page 8: ...O Switch on off 5 Spark Plug 6 Exhaust Muffler 7 Clutch Case 8 Hanger 9 Handle 10 Throttle Lever 11 Throttle wire 12 Shaft 13 Protector 14 Gear Case 15 Handle Holder 16 Cutter Blade 17 Waist Pad 18 F...

Page 9: ...de Fit the handle edge to the handle holder groove and provisionally fix the upper side 3 of the handle holder by four bolts M5 x 25 4 Adjust the handle to an angle easy to manipulate and tighten the...

Page 10: ...the cutter blade must be 255 mm 10 1 32 Never use any blades surpassing 255 mm 10 1 32 in outside diameter CAUTION The appropriate protector must always be installed for your own safety and in order t...

Page 11: ...shaft so that the guide of the receiver washer 4 fits in the arbor hole in the cutter blade Install the clamp washer 3 cup 2 and secure the cutter blade with the nut 1 Tightening torque 13 23 N m NOTE...

Page 12: ...emission of exhaust gasses is assured It is absolutely essential to observe a mixture ratio of 25 1 MAKITA 2 stroke engine oil Otherwise reliable function of the brushcutter cannot be guaranteed The c...

Page 13: ...pe I Attachment of shoulder harness Adjust the strap length so that the cutter blade will be kept parallel with the ground Type II Attachment of shoulder harness Adjust the strap length so that the cu...

Page 14: ...gine starts As soon as the engine starts immediately tap and release the throttle thus releasing the half throttle lock so that the engine can run in idle Run the engine for approximately one minute a...

Page 15: ...eed Idle speed should be set to 2 600 min 1 If necessary correct it by means of the idle screw the blade or the nylon cutting head must not turn when the engine is at idle Screwing in the screw 1 will...

Page 16: ...hole 3 every 30 hours Genuine MAKITA grease may be purchased from your MAKITA dealer 6 Cleaning of muffler exhaust port Every 50 hours Monthly If the exhaust port 4 is clogged with carbon remove it by...

Page 17: ...fault or short circuit spark plug or connector defective ignition module faulty Fuel supply Fuel tank filled Incorrect choke position carburetor defective fuel supply line bent or blocked fuel dirty C...

Page 18: ...buretor Make request for inspection and maintenance Starter rope cannot be pulled Make request for inspection and maintenance Abnormal drive system Make request for inspection and maintenance Engine s...

Page 19: ...19...

Page 20: ...Makita Corporation Anjo Aichi Japan 885147 9 www makita com ALA...

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