Zenoah HB250, Owner'S/Operator'S Manual

Page 1: ... or other reproductive harm WARNING OWNER OPERATOR MANUAL HANDHELD BLOWER 848 L0F 93A0 503 HB250 Thank you for purchasing a RedMax product Before using our blower please read this manual carefully to understand the proper use of your unit DRIVE UNIT 40900101 and up ENGINE UNIT KU413473 and up APPLICABLE SERIAL NUMBERS ...

Page 2: ...re breakdown or damage Used to label supplementary instructions designed to provide hints or directions useful in the use of the product WARNING IMPORTANT NOTE SAFETY FIRST Instructions contained in warnings within this manual and warning seals marked with a symbol on the blower concern critical points which must be taken into consideration to prevent possible serious bodily injury and for this re...

Page 3: ...WER PIPE FUEL 9 RECOMMENDED MIXING RATIO HOW TO MIX FUEL FUELING THE UNIT OPERATION 11 STARTING ENGINE RESTARTING ENGINE WHILE ENGINE HOT STOPPING ENGINE ADJUSTING IDLE SPEED MAINTENANCE 12 MAINTENANCE CHART AIR CLEANER FUEL FILTER SPARK PLUG MUFFLER SPARK ARRESTER AIR INLET SCREEN PROCEDURES TO BE PERFORMED AFTER EVERY 100 HOURS OF USE STORAGE 14 TROUBLESHOOTING GUIDE 14 PARTS LIST 15 ...

Page 4: ...om operating the blower if you are tired ill or upset or if you are under the influence of alcohol drugs or medication Always wear eye protection goggles Always wear ear protectors to protect your ears from engine noise If this guideline is not followed hearing loss can occur Safety Precautions Wear a face mask to guard against the inhalation of dust Wear rubber soled shoes or shoes with some othe...

Page 5: ...the blower at intervals for loose fasteners and rusted or damaged parts Use special care around the fuel line the muffler and the ignition wiring All engine service except for those WARNING WARNING Safety Precautions described in this manual should be performed by competent service personnel Improper service to the blower fan and muffler could cause a hazardous failure WORKING CONDITION Keep open ...

Page 6: ...general operate blowers between 8a m and 5p m on week day and 9a m to 5p m weekends Avoid using blower late at night and or early in the morning Loosen compacted leaves grass or debris with a rake or broom beforehand so that the lowest possible throttle setting would get the job done In dusty conditions slightly dampen surfaces Check if the air filter air intakes and muffler are working in properl...

Page 7: ...254VW EM EM CYLINDREE 25cm3 DATE DE FABRICA ABRICATION TION INFORMA INFORMATION IMPOR TION IMPORTANTE CONCERNANT LE MO ANTE CONCERNANT LE MOTEUR TEUR For safe operation and maintenance symbols are carved in relief on the machine According to these indications please be careful not to make a mistake a The port to refuel the MIX GASOLINE Position FUEL TANK CAP b The direction A to close the choke Th...

Page 8: ...ght without tube and nozzle kg lbs 3 8 8 3 Fuel Tank Capacity liter fl oz 0 65 22 0 Engine Type Air cooled 2 cycle gasoline engine Piston Displacement cm3 cu in 25 4 1 60 Durability Period 50h Carburetor Walbro Diaphragm type Ignition System CDI Spark Plug NGK BPMR7A Muffler Spark arrester equipped Operating Engine Speed rpm 2 800 7 800 Idle Speed rpm 2 800 Max Air Volume with std pipe cu m min cf...

Page 9: ...he engine HOW TO MIX FUEL Pay attention to agitation 1 Measure out the quantities of gasoline and oil to be mixed 2 Put some of the gasoline into a clean approved fuel container 3 Pour in all of the oil and agitate well 4 Pour In the rest of gasoline and agitate IMPORTANT Gasoline is very flammable Avoid smoking or bringing any flame or sparks near fuel Make sure to stop the engine and allow it co...

Page 10: ...R YOUR ENGINE LIFE AVOID 1 FUEL WITH NO OIL RAW GASOLINE It will cause severe damage to the internal engine parts very quickly 2 GASOHOL It can cause deterioration of rubber and or plastic parts and disruption of engine lubrication 3 OIL FOR 4 CYCLE ENGINE USE It can cause spark plug fouling exhaust port blocking or piston ring sticking 4 Mixed fuels which have been left unused for a period of one...

Page 11: ...op frequently at an idle mode turn the adjusting screw clockwise Warm up the engine before adjusting the idle speed NOTE NOTE STARTING ENGINE 1 Rest the unit on a flat firm place 2 Pump the primer until fuel flows out in the clear tube 3 Move the choke lever upward to close the choke 4 Holding the blower handle pull the starter rope with your right hand Throttle lever in idling position Avoid pull...

Page 12: ...ler spark arrester cylinder exhaust port clean throttle lever ignition switch check operation screws nuts bolts tighten replace not adjusting screws Maintenance replacement or repair of the emission control device and systems may be performed by any non road engine repair establishment or individual Make sure that the engine has stopped and is cool before performing any service to the blower Conta...

Page 13: ...her carbon deposits on its firing end with reasonable use Remove and inspect the spark plug every 25 hours and clean the electrodes as necessary with a wire brush The spark gap should be adjusted to 024 028 in 0 6 0 7mm Plug manufacturers recommend replacing the plug twice a year to avoid unexpected plug failure in a job REPLACEMENT PLUG IS A NGK BPMR7A Note that using any spark plugs other than t...

Page 14: ...t GAP 0 6 0 7mm spark plug disconnected retighten Case 2 Engine starts but does not keep running Hard re starting CHECK PROBABLE CAUSES ACTION fuel tank incorrect fuel or staled fuel drain it and with correct fuel carburetor adjustment screw out of normal range adjust to normal range muffler cylinder exhaust port carbon is built up wipe away air cleaner clogged with dust wash When your unit seems ...

Page 15: ... list then use parts number described in the parts list 4 The contents described in the parts list may change due to improvement 5 The parts for the machine shall be supplied seven 7 years after the machine is discontinued It is possible that some specific parts may be subject to change of their delivery term and list price within the limit of seven 7 years after the machine is discontinued It is ...

Page 16: ...Fig 1 ENGINE GROUP HB250 16 Parts List ...

Page 17: ...IMER ASSY 1 40 3097402 CHOKE LEVER PLATE ASSY 1 41 6634501 SCREW TORX 1 42 5994601 CHOKE PLATE 1 43 4315001 CARBURETOR PLATE 1 44 5945801 CHOKE LEVER 1 45 6634601 BOLT CARBURETOR 2 46 5687301 ELEMENT 1 48 3099904 COVER ASSY 1 49 5946101 KNOB 1 50 9506501 DECAL 1 51 9506009 DECAL To Start 1 Key Part Number Description Q ty 52 8714402 SPARK PLUG NGK BPMR7A 1 53 6634201 CAP SCREW 2 54 9070901 GASKET ...

Page 18: ...0 STOPPER 1 7 6811 11150 LEVER 1 8 6811 72200 SWITCH 1 9 848 L0F 31A0 ENGINE COVER 1 10 T4960 53510 SCREW TORX 4 11 6811 12110 FAN 1 12 1650 43230 182301 NUT 1 13 6811 12220 WASHER 2 14 848 L0F 90S0 LABEL CAUTION 1 15 848 L0F 90C0 LABEL RECOIL 1 Key Part Number Description Q ty 16 6811 51211 PIPE CT2 18 1 17 6811 51220 PIPE END CT2 19 1 Fig 2 BLOWER GROUP HB250 18 Parts List ...

Page 19: ... EQUIVALENT IN PERFORMANCE AND DULABILITY MAY BE USED IN NON WARRANTY MAINTENANCE OR REPAIRS AND SHALL NOT REDUCE THE WARRANTY OBLIGATION OF THE COMPANY THE COMPANY IS LIABLE FOR DAMAGES TO OTHER ENGINE COMPONENTS CAUSED BY THE FAILURE OF A WARRANTED PARTS STILL UNDER WARRANTY THE WARRANTY DOES NOT APPLY TO THOSE UNITS WHICH HAVE BEEN DAMAGED BY NEGLIGENCE OF INSTRUCTION LISTED IN THE OWNER OPERAT...

Page 20: ...peut être utilisée pour l entretien hors garantie ou les réparations hors garantie et ce sans réduire l obligation de garantie incombant à la société La société sera tenue responsable des dommages aux autres composants du moteur causés par la défaillance de pièce s garantie s en période de garantie La garantie ne s applique pas aux unités endommagées par suite de négligence dans la mise en oeuvre ...