Makita BH341U/EBH341L Скачать руководство пользователя страница 24

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TROUBLESHOOTING

Before making a request for repairs, check a trouble for yourself. If any abnormality is found, control your machine according to the description

of this manual. Never tamper or dismount any part contrary to the description. For repairs, contact Authorized Service Agent or local dealership.

When the engine does not start after warm-up operation:

If there is no abnormality found for the check items, open the throttle by about 1/3 and start the engine.

State of abnormality

Probable cause (malfunction)

Remedy

Engine does not start

Failure to operate primer pump

Push 7 to 10 times

Low pulling speed of starter rope

Pull strongly

Lack of fuel

Feed fuel

Clogged fuel filter

Clean

Broken fuel tube

Straighten fuel tube

Deteriorated fuel

Deteriorated fuel makes starting more difficult.

Replace with new one. (Recommended
replacement: 1 month)

Excessive suction of fuel

Set throttle lever from medium speed to high
speed, and pull starter handle until engine
starts.

Once engine starts, cutter blade

starts rotating. Pay full attention to cutter

blade.

If engine will not start still, remove spark plug,
make electrode dry, and reassemble them as

they originally are. Then, start as specified.

Detached plug cap

Attach securely

Contaminated spark plug

Clean

Abnormal clearance of spark plug

Adjust clearance

Other abnormality of spark plug

Replace

Abnormal carburetor

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 stops soon
Engine speed does not increase

Insufficient warm-up

Perform warm-up operation

Choke lever is set to “CLOSE” although
engine is warmed up.

Set to “OPEN”

Clogged fuel filter

Clean

Contaminated or clogged air cleaner

Clean

Abnormal carburetor

Make request for inspection and maintenance.

Abnormal drive system

Make request for inspection and maintenance.

Cutter blade does not rotate

Loosened cutter blade-tightening nut

Tighten securely

Twigs caught by cutter blade or dispersion-
preventing cover.

Remove foreign matter

Abnormal drive system

Make request for inspection and maintenance.

Main unit vibrates abnormally

Broken, bent or worn cutter blade

Replace cutter blade

Loosened cutter blade-tightening nut

Tighten securely

Shifted convex part of cutter blade and cutter

blade support fitting.

Attach securely

Abnormal drive system

Make request for inspection and maintenance.

Cutter blade does not stop immediately

High idling rotation

Adjust

Detached throttle wire

Attach securely

Abnormal drive system

Make request for inspection and maintenance.

Engine does not stop

Detached connector

Attach securely

Abnormal electric system

Make request for inspection and maintenance.

Stop engine immediately

Run engine at idling, and set choke lever
to CLOSE

Содержание BH341U/EBH341L

Страница 1: ...341L Important Read this instruction manual carefully before putting the Petrol Brushcutter into operation and strictly observe the safety regulations Preserve instruction manual carefully EBH341U EBH341L ORIGINAL INSTRUCTION MANUAL ...

Страница 2: ...e or nylon cutting head 11 Before start of operation 12 Correct handling of machine 14 Points in operation and how to stop 14 Resharpening the cutting tool 16 Servicing instructions 18 Storage 22 Take Particular care and attention Read instruction manual and follow the warnings and safety precautions Forbidden No smoking No open flame Protective gloves must be worn Keep the area of operation clear...

Страница 3: ...ng which could become entangled 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 operation Always wear a helmet where there is a risk of falling objects The protective helmet 1 is to be checked at regular intervals for damage and is to be replaced at the la...

Страница 4: ...the machine Never 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 cutting tool may cause serious injury All protective installations and guards supplied with the machine must be used during operation Never operate the engine with faulty exhaust muffler Sh...

Страница 5: ...is thrown sideway or toward the operator 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 kickback Apply the segment between 8 and 11 o clock Never apply the segment between 12 and 2 o clock Never apply the segment between 11 and 12 o clock and betwee...

Страница 6: ...cidents or damage caused by the use of non approved cutting tools and fixing devices of cutting tools or accessories First Aid In case of accident make sure that a first aid box is available in the vicinity of the cutting operations Immediately replace any item taken from the first aid box When asking for help please give the following information Place of accident What happened Number of injured ...

Страница 7: ...umption at max engine performance g kwh 426 Engine speed at idling min 1 3 000 Clutch engagement speed min 1 4 100 Carburetor Diaphragm carburetor type WALBRO WYL Ignition system type Solid state ignition Spark plug type NGK CMR4A Electrode gap mm 0 7 0 8 Vibration per ISO 22867 Right handle Rear grip ahv eq m s2 3 3 6 1 Uncertainty K m s2 0 70 2 0 Left handle Front grip ahv eq m s2 2 5 7 4 Uncert...

Страница 8: ...5 Spark Plug 6 Exhaust Muffler 7 Clutch Case 9 Hanger 10 Handle 11 Throttle Lever 12 Control Cable 13 Shaft 14 Protector Cutting tool guard 15 Gear Case Head Case 16 Handle Holder 17 Cutter Blade 18 Nylon Cutting Head 19 Fuel Filler Cap 20 Starter Knob 21 Primer Pump 22 Choke Lever 23 Exhaust Pipe 24 Oil Gauge EBH341L ...

Страница 9: ...king position and then secure by firmly hand tightening knob 1 CAUTION Do not forget to mount spring 5 MOUNTING OF HANDLE 1 2 3 4 5 Engine Engine For machines with loop handle Fix a barrier to the left side of the machine together with the handle for operator protection Make sure that the grip barrier assembly is fitted between the spacer and the arrow mark WARNING Do not remove or shrink the spac...

Страница 10: ...ly for those with three blades Metal blade Protector for metal blades Nylon cutting head Protector for nylon cutting head MOUNTING OF PROTECTOR In use of the metal blade fix the protector 3 to the clamp 2 with two bolts M6 x 30 1 NOTE Tighten the right and left bolts evenly so that the gap between the clamp 2 and the protector 3 will be constant Otherwise the protector sometimes may not function a...

Страница 11: ...up 2 and secure the cutter blade with the nut 1 Tightening torque 13 23 N m NOTE Always wear gloves when handling the cutter blade NOTE The cutter blade fastening nut with spring washer is a consumable part If there appears any wear or deformation on the spring washer replace the nut Mounting of nylon cutting head The clamp washer 3 cup 2 and nut 1 are not necessary for mounting the nylon cutting ...

Страница 12: ... or may catch fire with white smoke Point 1 in Replacement of oil Oil gauge Remove dust or dirt near the oil refill port and detach the oil gauge Keep the detached oil gauge free of sand or dust Otherwise any sand or dust adhering to the oil gauge may cause irregular oil circulation or wear on the engine parts which will result in troubles As an example to keep the oil gauge clean it is recommende...

Страница 13: ... the tank cap a little so that there will be no difference in atmospheric pressure Detach the tank cap and refuel discharging air by tilting the fuel tank so that the refuel port will be oriented upward Never refill fuel full to the oil refill port Wipe well the periphery of the tank cap to prevent foreign matter from entering into the fuel tank After refueling securely tighten the tank cap If the...

Страница 14: ...ime 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 at all could result in serious bodily injury or DEATH 2 Set the I O switch 1 to OPERATION 3 Choke lever Close the choke lever Choke opening Full closing in cold or when the engine is cold Full or half opening in restart just after stop of operation CLOS...

Страница 15: ...strongly Never pull the rope to the full Once the start knob is pulled never release your hand immediately Hold the start knob until it returns to its original point 6 Choke lever When the engine starts open the choke lever Open the choke lever progressively while checking the engine operation Be sure to open the choke lever to the full in the end In cold or when the engine is cooled down never op...

Страница 16: ... automatically so that the throttle lever will not be pulled by mistake Adjustment of Engine ROTATION When adjusting the engine rotation with the throttle lever opened to the full turn the throttle control dial Turn the dial clockwise and the engine rotation will be reduced Turn the dial counterclockwise and the engine rotation will be increased NYLON CUTTING HEAD The nylon cutting head is a dual ...

Страница 17: ... to the direction slown by left hand LH arrow on the flange Do not cross the lines 5 Wind all but about 100 mm 3 15 16 of the Cords leaving the end temporarily hooked through a notch on the side of the spool 6 Put tap knob onto the housing hub positioning it can freely move up and down against spring tension Put the spool into the housing aligning the teeth on spool and tap knob alternately like g...

Страница 18: ...nd maintenance Before operation check the machine for loose screws or missing parts Pay particular attention to the tightness of the cutter blade or nylon cutting head Before operation always check for clogging of the cooling air passage and the cylinder fins Clean them if necessary Perform the following work daily after use Clean the Petrol Brushcutter externally and inspect for damage Clean the ...

Страница 19: ...elevant laws and regulations For any points remaining unknown contact Authorized Service Agent Oil will deteriorate even when it is kept unused Perform inspection and replacement at regular intervals replace with new oil every 6 months 4 Detach the oil gauge and drain oil tilting the main unit toward the oil refill port Drain oil in a container for orderly disposal 5 Keep the engine level and feed...

Страница 20: ...d plate breather Immediately after cleaning is finished attach the cleaner cover and tighten it with fixing bolts In remounting first place the upper claw and then the lower claw Points in handling air cleaner element Clean the element several times a day if excessive dust adheres to it If operation continues with the element remaining not cleared of oil oil in the air cleaner may fall outside res...

Страница 21: ...r 1 Fuel pipe INSPECTION OF BOLTS NUTS AND SCREWS Retighten loose bolts nuts etc Check for fuel and oil leakage Replace damaged parts with new ones for safety operation CLEANING OF PARTS Keep the engine always clean Keep the cylinder fins free of dust or dirt Dust or dirt adhering to the fins will cause piston seizure REPLACEMENT OF GASKETS AND PACKINGS In reassembling after the engine is dismount...

Страница 22: ...the machine with the cutter blade edge oriented downward Lubricating oil may spill out Keep the drained fuel in a special container in a well ventilated shade STORAGE Attention after long time storage Before startup after long time shutdown be sure to replace oil refer to P 17 Oil will deteriorate while the machine is kept out of operation Fault System Observation Cause Engine not starting or with...

Страница 23: ...g P Engine oil Inspect clean 12 Replace 1 18 Tightening parts bolt nut Inspect 21 Fuel tank Clean inspect Drain fuel 3 22 Throttle lever Check function Stop switch Check function 15 Cutting blade Inspect 10 Low speed rotation Inspect adjust 16 Air cleaner Clean 20 Ignition plug Inspect 20 Cooling air duct Clean inspect 21 Fuel pipe Inspect 21 Replace 2 Gear case grease Refill 20 Fuel filter Clean ...

Страница 24: ...ark plug Replace Abnormal carburetor 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 stops soon Engine speed does not increase Insufficient warm up Perform warm up operation Choke lever is set to CLOSE although engine is warmed up Set to OPEN Clogged fuel f...

Страница 25: ...25 ...

Страница 26: ...26 ...

Страница 27: ...27 ...

Страница 28: ...Makita Corporation Anjo Aichi Japan 884891E221 www makita com ALA ...

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