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Zenoah BC251 - page 1
GB-1 G B BC251 BC251 G B OWNER’S MANUAL BRUSHCUTTER 848JBZ93A1 (704) ...
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Zenoah BC251 - page 2
GB-2 BC251 EXPLANA TION OF SYMBOLS AND SAFETY W ARNINGS SOUND LEVEL VIBRA TION LEVEL ISO 22868 : 2005 LwA measured guaranteed ISO 22867 : 2004 racing MODEL LpA EN27917 idling BC251 25.4 cm 3 101.5 dB(A) 114.9 dB(A) 116 dB(A) 4.1 m/s 2 7.8 m/s 2 DECLARA TION OF COMFORMITY The undersigned manufacturer ZENOAH CO., L TD. 1-9, Minamidai, Kawagoe, Saitam ...
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Zenoah BC251 - page 3
GB-3 G B BC251 1. Par ts location SAFETY FIRST 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 for this reason you are requested to read all such instructions carefully and follow them without fail. W ARNINGS IN ...
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Zenoah BC251 - page 4
GB-4 BC251 2. Specification 4. Symbols on the machine For safe operation and maintenance, symbols are carved in relief on the machine. Accor ding to these indications, please be careful not to make a mistake. The port to refuel the “MIX GASOLINE” Model BC251 Overall size (LxWxH) mm 1810 x 330 x 390 Dry weight kg 5.4 Engine Model Zenoah GT25N4 D ...
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Zenoah BC251 - page 5
GB-5 G B BC251 b. At night, at times of heavy fog, or at any other times when your field of vision might be limited and it would be diffi- cult to gain a clear view of the working area. c. During rain storms, during lightning storms, at times of strong or gale-for ce winds, or at any other times when weather conditions might make it unsafe to use t ...
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Zenoah BC251 - page 6
GB-6 BC251 onto the ground in a flat clear ar ea and hold it firmly in place so as to ensure that neither the cutting part nor the throttle come into contact with any obstacle when the engine starts. W ARNING Never place the throttle into the high-speed position when starting the engine. 3. After starting the engine, check to make sure that the cut ...
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Zenoah BC251 - page 7
GB-7 G B BC251 6. Never touch the muffler , spark plug, or other metallic parts of the engine while the engine is in op- eration or immediately after shut- ting down the engine. Doing so could result in serious burns or electrical shock. • IF SOMEONE COMES 1. Guard against hazar dous situa- tions at all times. W ar n adults to keep pets and child ...
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Zenoah BC251 - page 8
GB-8 BC251 6. Set up INST ALLING HANDLE • Mount the handle to the shaft tube and clamp it at a location that is comfortable to you. (1) INST ALLING CUTTING A TT ACHMENT GUARD • Attach the cutting attachiment guard with the bolts provided while inserting the spacer between the guard and the pipe. •A ttach the guard skirt on the guard. INST ALL ...
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Zenoah BC251 - page 9
GB-9 G B BC251 ■ RECOMMENDED MIXING RA TIO GASOLINE 50 : OIL 1 <when using ZENOAH genuine oil> • Exhaust emission are controlled by the funda- mental engine parameters and components (eq., carburation, ignition timing and port timing) with- out addition of any major hardware or the intro- duction of an inert material during combustion. ? ...
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Zenoah BC251 - page 10
GB-10 BC251 W ARNING • The product is equipped with a centrifugal clutch mechanism, so the cutting attachment begins to rotate as soon as the engine is started by putting the throttle into the start position. When starting the engine, place the product onto the ground in a flat clear area and hold it firmly in place so as to ensure that neither t ...
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Zenoah BC251 - page 11
GB-11 G B BC251 ADJUSTING IDLING SPEED (1) 1. When the engine tends to stop frequently at idling mode, turn the adjusting screw clockwise. 2. When the cutting head keeps rotating after r eleasing the trigger , tur n the adjusting screw counter -clockwise. NOTE •W arm up the engine before adjusting the idling speed. 8. Operation (1) Idle adjusting ...
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Zenoah BC251 - page 12
GB-12 BC251 8. Operation CUTTING WORK (LINE HEAD USAGE) W ARNING 1. Always wear eye protection such as safety goggles. Never lean over the rotating cutting head. Rocks or other debris could be thrown into eyes and face and cause serious personal injury . 2. Keep the cutting attachment guard in place at all times when the unit is operated. TRIMMING ...
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Zenoah BC251 - page 13
GB-13 G B BC251 9. Maintenance Every Every Ever y 25 50 100 System/components Procedure Before hours hours hours Note use after after after fuel leaks, fuel spillage wipe out ✔ fuel tank, air filter , fuel filter inspect/clean ✔✔ r eplace, if necessary see adjusting replace carbur etor idle adjusting screw ✔ idling speed if necessary clean ...
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Zenoah BC251 - page 14
GB-14 BC251 IMPORT ANT • Note that using any spark plug other than those des- ignated may result in the engine failing to operate prop- erly or in the engine becoming overheated and dam- aged. • To install the spark plug, first turn the plug until it is finger tight, then tighten it a quarter turn more with a socket wrench. MUFFLER W ARNING • ...
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Zenoah BC251 - page 15
GB-15 G B BC251 GEAR CASE • The reduction gears ar e lubricated by multipurpose, lithium-based grease in the gear case. Supply new grease every 25 hours of use or mor e often depend- ing on the job condition. • Remove the bolt of the grease nipple and the bolt opposite side of the grease nipple. Install new gr ease into the grease nipple to ar ...
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Zenoah BC251 - page 16
GB-16 BC251 Limited warranty Should any failure occur on the pr oduct under nor mal oper - ating conditions within the applicable warranty period, the failed part will be replaced or repair ed free of charge by a ZENOAH authorized dealer . W ARRANTY PERIOD: 1 year (6 months if used pr ofession- ally , and 30 days if used for rental purpose) from th ...
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