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BK2650DL
G G
B B
OWNER’S MANUAL
BRUSHCUTTERS
BK2650DL
GB-1
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BK2650DL EXPLANATION OF SYMBOLS AND SAFETY WARNINGS WARNING!!! RISK OF DAMAGING HEARING IN NORMAL CONDITIONS OF USE, THIS MACHINE MAY INVOLVE A DAILY LEVEL OF PERSONAL EXPOSURE TO NOISE FOR THE OPERATOR EQUAL TO OR GREATER THAN 85 dB(A) MODEL SOUND LEVEL VIBRATION LEVEL ISO 10884 ISO 7916 EN27917 LwA idling racing LpA measured guaranteed 3 2 2 BK2650DL 25.4 cm 98 dB(A) 111 dB(A) 112 dB(A) 1.0 m/s 4.0 m/s GB-2
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BK2650DL SAFETY FIRST Contents Instructions contained in warnings within this manual marked with a symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury, and 1. Parts location .................................................. 3 for this reason you are requested to read all such instructions 2. Specifications ................................................. 4 carefully and follow them without fail. G 3. Warning labels on the machine ..
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BK2650DL 2. Specification Model BK2650DL Overall size (LxWxH) mm 2616 x 306 x 336 Dry weight kg 8.3 Engine Model Zenoah G26LS 3 Displacement cm 25.4 Fuel Mixture (Gasoline 50 : Oil 1) Carburetor Diaphragm type Ignition system Flywheel magneto (C.D.I.) Spark plug NGK BPMR 7A Fuel tank capacity L 1.1 Starter Recoil starter Clutch Centrifugal type Reduction ratio 1.67 Cutting head rotating direction Counter-clockwise (Operator view) Specifications are subject to change without notice. 3. Warning la
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BK2650DL 5. For safe operation b. At night, at times of heavy fog, 1. Read this manual carefully until or at any other times when you completely understand and your field of vision might be follow all safety and operating limited and it would be diffi- instructions. cult to gain a clear view of the 2. Keep this manual handy so that G working area. you may refer to it later when- B c. During rain storms, during ever any questions arise. Also lightning storms, at times of note, if you have any q
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BK2650DL 5. For safe operation BEFORE STARTING ensure that neither the cutting THE ENGINE part nor the throttle come into 1. The area within a perimeter of contact with any obstacle when 15 m (50 ft) of the person using the engine starts. the product should be considered a hazardous area into which no WARNING one should enter. If necessary, yellow warning rope, warning Never place the throttle into the signs should be placed around high-speed position when starting the perimeter of the area.
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BK2650DL 5. For safe operation could result in serious burns or elec- HANDLING FUEL trical shock. 1. The engine of the KOMATSU ZENOAH product is designed to run on a mixed fuel, which con- • IF SOMEONE COMES tains highly flammable gasoline. G 1. Guard against hazardous situa- Never store cans of fuel or refill B tions at all times. Warn adults to the tank of the unit in any place keep pets and children away from where there is a boiler, stove, the area. Be careful if you are ap- wood fire, el
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BK2650DL 6. Set up INSTALLING THE SHOULDER STRAP INSTALLING CUTTING HEAD 1. Hook the upper part of the shoulder strap at the notch on the top of the frame and pass it through the buckle as shown in the Figure, then secure it firmly. 2. Put the hook at the lower part of the shoulder strap in the strap installing location at the bottom of the frame. Buckle 1. While locking the gear shaft, by inserting the supplied tool into the upper holder on the gearbox, loosen and remove the hexagon nut (left-h
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BK2650DL 7. Fuel ■ FUEL least one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agi- WARNING tation is necessary for the engine to last long. Be • Gasoline is very flammable. Avoid smoking or careful that, if the agitation is insufficient, there is an bringing any flame or sparks near fuel. Make sure increased danger of early piston seizing due to ab- G to stop the engine and allow it cool before refuel- normally lean mixture. B ing the unit.
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BK2650DL 8. Operation STARTING A COOLED ENGINE 6. When the engine starts, open the choke gradually. 1. Set the ignition switch to the RUN position. 7. Allow the engine to warm up at low speed for two to 2. Release the throttle lever. This lever cannot be oper- three minutes before starting operation. ated unless you hold the grip firmly and push the up- per lever as far as it goes. IMPORTANT (3) (2) (1) (1) Ignition switch • Overchoking may make the engine hard to start due (2) STOP to excess
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BK2650DL 8. Operation NOTE STOPPING ENGINE 1. Release the throttle lever and run the engine for half • This brush cutter can be operated in either the right a minute. side or left side position. The rope guide position is 2. Shift the ignition switch to the STOP position. fixed for right side position operation when shipped G from the factory. B • Adjust the rope guide position as shown in the figure IMPORTANT to allow the operator in the left-hand position to pull the recoil starter with th
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BK2650DL 8. Operation WARNING PUTTING ON THE UNIT • Make sure to use shoulder strap and debris guard. NOTE If not, it is very dangerous when you slip or lose your balance. • When carrying the unit on the back, make sure that the throttle lever is set to the idling position and that the throttle wire will not become twisted and tensioned. 1. After confirming that there is no person or obstacle nearby, grasp the end of the main pipe handle (cutter head side) with the left hand and put the righ
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BK2650DL 8. Operation ADJUSTING THE LINE LENGTH • Each time the head is bumped, the line advances •Your brush cutter is equipped with a semi- auto type about 25 mm. For better effect, tap the head on bear nylon line head that allows the operator to advance ground or hard soil. Avoid bumping in thick, tall grass the line without stopping the engine. When the line as the engine may stall by overload. becomes short, lightly tap the head on the ground G while running the engine at full throttle. B 9
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BK2650DL 9. Maintenance 9. Maintenance WARNING MUFFLER • Make sure that the engine has stopped and is cool WARNING before performing any service to the machine. Contact with moving cutting head or hot muffler • Inspect periodically, the muffler for loose fasten- may result in a personal injury. ers, any damage or corrosion. If any sign of ex- haust leakage is found, stop using the machine AIR FILTER and have it repaired immediately. • The air filter, if clogged, will reduce the engine perfor
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BK2650DL 9. Maintenance 10. Storage Aged fuel is one of major causes of engine starting fail- INTAKE AIR COOLING VENT ure. Before storing the unit, empty the fuel tank and run WARNING the engine until it uses all the fuel left in the fuel line and the carburetor. Store the unit indoor taking necessary • Never touch the cylinder, muffler, or spark plugs measures for rust prevention. G with your bare hands immediately after stopping B the engine. The engine can become very hot when in operation
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BK2650DL 11. Troubleshooting guide Case 1. Starting failure CHECK PROBABLE CAUSES ACTION fuel tank → incorrect fuel → drain it and use correct fuel fuel filter → fuel filter is clogged → clean carburetor adjustment screw → out of normal range → adjust to normal range sparking (no spark) → spark plug is fouled/wet → clean/dry → plug gap is incorrect → correct (GAP: 0.6-0.7 mm) spark plug → disconnected → retighten Case 2. Engine starts but does not keep running/hard re-starting CHECK PROBABLE CAU
