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848-L0F-93A0 (503)
OWNER/OPERATOR MANUAL
HANDHELD BLOWER
HB250
Thank you for purchasing a RedMax
WARNING
product.
Before using our blower, please read
The engine exhaust from this product
this manual carefully to understand the
contains chemicals known to the State
of California to cause cancer, birth proper use of your unit.
defects or other reproductive harm.
APPLICABLE SERIAL NUMBERS :
DRIVE UNIT 40900101 and up ENGINE UNIT KU413473 and up
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Read this manual carefully to understand all safety precautions, controls, proper operation and maintenance of your RedMax blower. Failure to do so could result in serious injury. 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 reason you are requested to read all such instructions carefully and follow
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CONTENTS SAFETY PRECAUTIONS················································································ 4 OPERATOR USE OF BLOWER WORKING CONDITION AVOID NOISE PROBLEM AVOID CHANCES OF DAMAGE SYMBOLS ON THE MACHINE ······································································· 7 PARTS LOCATION & SPECIFICATIONS ······················································· 8 ASSEMBLY······································································································ 8 BLOWE
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Safety Precautions • Wear a face mask to guard against the • Read this Blower Owner/Operator inhalation of dust. Manual carefully. Be sure you • Wear rubber-soled shoes or shoes with understand how to operate this unit some other form of anti-slip protection to properly before you use it. Failure to do help protect you against falling. so could result in serious injury. • Be sure to wear proper work clothing. ■ USE OF BLOWER • Each time before starting the engine, inspect the entire unit to see
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Safety Precautions described in this manual should be WARNING performed by competent service • Never use the blower without the personnel. Improper service to the blower screen at the air intake of the blower. fan and muffler could cause a hazardous Before each use, check that, the failure. screw(1) is securely tightened and is free from any damage. ■ WORKING CONDITION WARNING • Keep open flames and sparks away from the area where fuel is handled or stored, as the fuel is highly flammable. WARNI
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Safety Precautions • Keep operation area clear of all persons, ■ AVOID NOISE PROBLEM particularly small children and pets. Injury NOTE may result from flying debris. • Avoid using the blower where stable Check and follow the local regulations footing and balance are not assured. as to sound level and hours of • Never touch the spark plug or plug cord operations for blower. while the engine is in operation. Doing so may result in being subjected to an • In general, operate blowers between electr
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Symbols on the machine 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 The direction B to open the choke Position: AIR CLEANER COVER INFORMA INFORMATION IMPOR TION IMPORTANTE CONCERNANT LE MO ANTE CONCERNANT LE MOTEUR TEUR CE MOTEUR EST CONFORME A LA REGLEMENTATION U.S. EPA 2005 POUR LES
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Parts Location & Specifications MODEL HB250 Dimensions ( L x W x H ) mm ( in ) 327 x 273 x 360 (12.9 x 10.7 x 14.2) Dry Weight (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 3 Piston Displacement cm ( 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 r
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Fuel ■ RECOMMENDED MIXING RATIO WARNING GASOLINE 50:OIL 1 • Gasoline is very flammable. Avoid 50:1 MIXING CHART smoking or bringing any flame or sparks near fuel. Make sure to stop the GASOLINE gal. 1 2 3 4 5 engine and allow it cool before 2-CYCLE OIL fl.oz 2.6 5.2 7.8 10.4 13 refueling the unit. Select outdoor bare ground for fueling and move at least GASOLINE liter 1 2 3 4 5 3m (10ft) away from the fueling point 2-CYCLE OIL ml 20 40 60 80 100 before starting the engine. • Exhaust e
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Fuel again for at least one minute. As some long period of time, clean the fuel tank oils may be difficult to agitate depending after rendering it empty. Next, activate the on oil ingredients, sufficient agitation is engine and empty the carburetor of the necessary for the engine to last long. Be composite fuel. careful that, if the agitation is insufficient, 6. In the case of scrapping the used mixed there is an increased danger of early oil container, scrap it only at an authorized piston seiz
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Operation ■ STARTING ENGINE ■ RESTARTING ENGINE WHILE ENGINE IS HOT 1. Rest the unit on a flat, firm place. 1. When restarting the engine immediately 2. Pump the primer until fuel flows out in the after stopping it, leave the choke open. clear tube. 2. If the engine won't start after several attempts, close the choke and repeat pulling the rope or remove the spark plug and dry it. ■ STOPPING ENGINE Release the throttle lever to the idling position and press the stop switch (red button) until t
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Maintenance Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair establishment or individual. ■ MAINTENANCE CHART every every every 25 50 100 system/compornent procedure before hours hours hours note use after after after fuel leaks, fuel spillage wipe out ✔ fuel tank, air filter, fuel filter inspect/clean ✔✔ replace, if necessary see ■ADJUSTING replace carburetor idle adjusting screw ✔ IDLING SPEED (p.11) if necessary clea
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Maintenance ■ SPARK PLUG the muffler may get loose during operation • The spark plug may gather carbon which may result in engine catching on deposits on its firing end with reasonable fire. use. Remove and inspect the spark plug ■ SPARK ARRESTER every 25 hours and clean the electrodes • The muffler is equipped with a spark as necessary with a wire brush. The spark arrester to prevent red hot carbon from gap should be adjusted to .024~.028 in. flying out of the exhaust outlet. (0.6~0.7mm). Perio
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Maintenance ■ PROCEDURES TO BE PERFORMED AFTER EVERY 50 HOURS OF USE • Remove the muffler, insert a screwdriver into the vent, and wipe away any carbon buildup. Wipe away any carbon buildup on the muffler exhaust vent and cylinder exhaust port at the same time. • Tighten all screws, bolts, and fittings. Storage BEFORE STORING THE BLOWER: 1. Drain a fuel tank and push the primer bulb until it becomes empty of fuel. 2. Remove the spark plug and drop a spoonful of 2-cycle oil into the cylider. Cran
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Parts List HANDHELD BLOWER HB250 NOTE : 1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement. 2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any parts other than those specified by the company. 3. When placing parts orders for repair and/or replacement, check if the model name and the serial number are applicable to those specified in the parts list, then use parts number described in the parts list. 4. The
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Parts List Fig.1 ENGINE GROUP HB250 16
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Fig.1 ENGINE GROUP HB250 Key# Part Number Description Q'ty Key# Part Number Description Q'ty 1 6457402 ROTOR 1 52 8714402 SPARK PLUG NGK BPMR7A 1 2 4309501 CRANKCASE&SHAFT ASSY 1 53 6634201 CAP SCREW 2 3 6968501 • BEARING 2 54 9070901 GASKET CYLINDER 2 4 5687501 • SEAL 1 55 3075304 RECOIL ASSY 1 5 9071301 GASKET CASE 1 56 6635101 SCREW TORX 4 6 6968401 • RING 1 57 9506010 DECAL(E Start) 1 7 5687401 • SEAL 1 58 848-L0F-90D0 DECAL(EMISSION) 1 8 6634801 • SCREW 3 9 3075003 • CRANKCASE ASSY 1 61 84
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Parts List Fig.2 BLOWER GROUP HB250 Key# Part Number Description Q'ty Key# Part Number Description Q'ty 1 848-L0F-55A1 VOLUTE CASE 1 16 6811-51211 PIPE CT2-18 1 2 848-L0F-55B0 VOLUTE COVER 1 17 6811-51220 PIPE, END CT2-19 1 3 T4970-52000 SCREW TORX 12 4 6811-11130 GURD NET 1 5 6811-11170 SCREW 1 6 6811-11160 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-L
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RedMax LIMITED WARRANTY EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE UNIT, KOMATSU ZENOAH AMERICA INC. (THE COMPANY), THROUGH ANY RedMax DEALER, WILL REPAIR OR REPLACE, FREE OF CHARGE, FOR THE ORIGINAL AND EACH SUBSEQUENT PURCHASER, ANY PART OR PARTS FOUND TO BE DEFECTIVE IN MATERIAL AND/OR WORKMANSHIP. EMISSION-RELATED PARTS ARE: THE CARBURETOR ASSY, COIL ASSY, ROTOR, SPARKPLUG, AIR FILTER, FUEL FILTER, INTAKE MANIFOLD, AND THE GASKETS ALL OTHER PART
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RedMax Garantie limitée Pièces en rapport avec les émissions de gaz d'échappement : KOMATSU ZENOAH AMERICA INC., par l'intermédiaire de n'importe quel revendeur RedMax, réparera gratuitement ou remplacera gratuitement pour l'acheteur initial et chaque acheteur successif toute(s) pièce(s) se révélant de constitution et/ou de montage défectueux pendant deux (2) ans à compter de la date initiale de livraison d’une unité. Les pièces en rapport avec les émissions de gaz d'échappement sont: l'assembl
