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• Read this Blower Owner/Operator Manual

carefully. Be sure you understand how to
operate this unit properly before you use
it. Failure to do so could result in serious
injury.

• Be sure to keep this manual handy so that

you may refer to it later whenever any
questions arise. Also note that you are
requested to contact the dealer from
whom you purchased the product for
assistance the event that you have any
questions which cannot be answered
herein.

• Always be sure to include this manual

when selling, lending, or otherwise
transferring the ownership of this product.

OPERATOR

• Refrain from operating the blower if you are

tired, ill, or upset, or if you are under the
influence of alcohol, drugs or medication.

• To reduce the risk of hearing loss

associated with sound level(s), hearing
protection is required.

• Always wear eye protection and foot

protection. Eye protection should meet
the requirements of ANSI Z87.1.

• To reduce the risk of injury associated with

the inhalation of dust, use a face filter mask
in dusty conditions.

• Wear rubber-soled shoes or shoes with

WARNING

Safety Precautions

some other form of anti-slip protection to
help protect you against falling.

• To reduce the risk of injury associated with

objects being drawn into rotating parts, do
not wear loose clothing, scarves, neck
chains, unconfined long hair, and the like.

USE OF BLOWER

• Each time before starting the engine,

inspect the entire unit to see if every part is
in good order and is securely tightened in
place. If any damage is found in the fuel
line, the exhaust line, or the ignition wiring,
do not use the blower until it has been
repaired.

• Before starting operation, always make

sure to check if any obstacles are left
inside the volute case. The obstacles may
cause damage on fan and volute case and
serious injury.

Check to see if the shock-absorbing rubber
mount has become cracked or otherwise
damaged. 

Note that failing to replace this

rubber mount when it has become
cracked or damaged may cause the
engine to come loose from its frame
during  use, thus resulting in possible
serious bodily injury.

• If cracked, be sure to replace without delay.

WARNING

IMPORTANT

4

Summary of Contents for EB4401

Page 1: ... cancer birth defects or other reproductive harm WARNING OWNER OPERATOR MANUAL BACKPACK BLOWER 848L3A93A0 309 EB4401 Thank you for purchasing a RedMax product Before using our blower please read this manual carefully to understand the proper use of your unit 310001 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: ...THE MACHINE 7 SYMBOLS ON THE MACHINE 8 PARTS LOCATION SPECIFICATIONS 9 ASSEMBLY 9 BLOWER TUBE FUEL 10 HOW TO MIX FUEL FUELING THE UNIT OPERATION 12 CONTROL ARM STARTING ENGINE ADJUSTING IDLE SPEED STOPPING ENGINE MAINTENANCE 14 AIR CLEANER FUEL FILTER SPARK PLUG MUFFLER SPARK ARRESTER AIR INLET NET SHOULDER STRAP STORAGE 16 PARTS LIST 17 ...

Page 4: ...on of dust use a face filter mask in dusty conditions Wear rubber soled shoes or shoes with WARNING Safety Precautions some other form of anti slip protection to help protect you against falling To reduce the risk of injury associated with objects being drawn into rotating parts do not wear loose clothing scarves neck chains unconfined long hair and the like USE OF BLOWER Each time before starting...

Page 5: ...se described in this manual should be performed by competent service personnel Improper service to the blower fan and muffler could cause a hazardous failure WARNING Safety Precautions FUEL To reduce the risk of fire and burn injury Handle fuel with care It is highly flammable Do not smoke while handing fuel Do not refuel a hot engine Do not refuel a running engine Avoid spilling fuel or oil Alway...

Page 6: ...ith times listed in local ordinances To reduce sound levels limit the number of pieces of equipment used at any one time Operate power blowers at the lowest possible throttle speed to do the job Check your equipment before operation especially the muffler air intakes and air filters Loosen compacted leaves grass or debris with a rake or broom beforehand so that the lowest possible throttle setting...

Page 7: ...y acquainted with all operations and have learned to use it correctly If warning label peel off or become soiled and impossible to read you should contact the dealer from which you purchased the product to order new labels and affix them in the required location s Never modify your machine We won t warrant the machine if you use the remodeled machine or you don t observe the proper usage written i...

Page 8: ...THIS ENGINE CONFORMS TO US EPA PH1 AND 1995 1999 CALIFORNIA EMISSION REGULATIONS FOR ULGE ENGINES ENGINE FAMILY WKZXS 0424ST EM ENGINE DISPLACEMENT 41 5cc REFER TO OWNER S MANUMAL FOR MAINTE NANCE SPECIFICATIONS AND ADJUSTMENTS MANUFACTURED Made in Japan RedMax INFORMATION IMPORTANTE CONCERNANT LE MOTEUR Ce moteur conformc aux normcs U S EPA PH1 et 1995 1999 de la régulementation concernant la pol...

Page 9: ...ter equipped Durability Period hrs 300 Operating Engine Speed rpm 2 000 to 6 500 PIPE END ø57 Fuel Consumption liter h fl oz h 1 7 57 5 Air Volume cu m min cfm 11 388 Air Volume w o Pipes cu m min cfm 18 636 Air Velocity m sec mph 72 161 Noise Level dB A 72 Parts Location Specifications Assembly BLOWER TUBES 1 Connect the blower and swivel joint with flexible hose Clamp both ends of the flexible h...

Page 10: ...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 11: ...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 12: ...l reduce the cooling air and the engine could be damaged by overheating 1 Push the primer bulb until fuel flows out in the clear tube 2 When the engine is cool close the choke 3 Set the throttle lever in 1 3 open position 4 To start hold the top of the blower firmly with your left hand Pull the starter knob slowly until you feel it engage and then give it a vigorous strong pull Avoid pulling the s...

Page 13: ...g open the choke and repeat pulling the rope ADJUSTING IDLE SPEED The idling speed is set for 2000 rpm at the factory If it is necessary to adjust the idle speed use the adjustment screw on the top side of carburetor STOPPING ENGINE Move the throttle lever to the idling position and press the stop switch red button until the engine comes to a complete stop NOTE Stop Switch 13 ...

Page 14: ...ter turn more with a socket wrench IMPORTANT Make sure that the engine has stopped and is cool before performing any service to the blower Contact with rotating blower fan or hot muffler may result in a personal injury AIR CLEANER Never operate the blower without an air filter or with a deformed or broken filter element C h e c k the air cleaner every 25 hours of use or more frequently if used und...

Page 15: ... carbon from flying out of the exhaust outlet Periodically inspect and clean as necessary with a wire brush In the State of California it is required by law Section 4442 of the California Public Resources Code to equip a spark arrester when a gas powered tool is used in any forest covered brush covered or grass covered unimproved land IMPORTANT WARNING AIR INLET NET Blowing air is taken in from th...

Page 16: ...o fall and resulting in personal injury Follow the instructions below to replace the shoulder strap Pass the upper end of the strap through the hanger making the FLAPPED SIDE OUTSIDE Put the end of the strap through the ring on the strap and then push the ring toward the hanger as close as possible Maintenance The flap on the end of the strap works as a stopper Never install the strap with the fla...

Page 17: ... those specified in the parts 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 m...

Page 18: ... 18 Parts List EB4401 Fig 1 BLOWER GROUP S N 310001 and up ...

Page 19: ...1121 RING 2 23 3460 21311 PAD 1 24 3495 21320 CLIP 4 25 2756 32300 BAND ASSY 2 26 T4012 32500 NET COMP 1 27 1480 74710 CLIP 4 28 2750 32510 DAMPER UPPER 1 29 2750 32520 WASHER 1 30 2750 32530 SCREW M5x40 1 31 2750 32541 BOLT M5x16 Large Washer 2 32 2750 32610 DAMPER LOWER 2 33 2750 32620 NUT M6 2 34 2756 85102 TANK ASSY 1 35 T1015 85202 CAP ASSY 1 36 4500 85300 HOLDER ASSY 1 37 4500 85220 PACKING ...

Page 20: ... 20 Parts List EB4401 Fig 2 ENGINE GROUP S N 310001 and up ...

Page 21: ... 1000 43240 Key 1 34 2750 71111 Rotor 1 35 2750 71200 Coil ass y 1 36 3350 14150 Bolt M4x20 2 37 1900 72112 Cap 1 38 1900 72120 Spring 1 39 5500 72130 Grommet 1 40 1497 73110 Spark plug 1 Champion RJ6C 41 2756 71220 Cap 1 42 2756 73200 Cord comp 1 43 1487 75101 Recoil ass y 1 44 1180 75221 Spring 1 45 1487 75120 Reel 1 Key Part Number Description Q ty 46 1487 75140 Dog 1 47 1861 75150 Washer 1 48 ...

Page 22: ...4 Gasket 1 15 Diaphragm 1 16 Gasket 1 17 Diaphragm 1 18 1752 81110 Screw 2 19 5500 81120 Bracket 1 20 1751 81180 Nut 1 21 1918 81170 Screw 1 22 1881 81130 Ring 1 23 1850 81530 Screw 4 24 3407 81250 Jet 1 25 1751 81240 O Ring 1 26 Body 1 27 Valve ass y 1 28 5602 06020 Gasket Kit OP Key 14 15 16 17 29 5602 06030 Rebuild Kit OP Gasket Kit Key 1 NOTE 26 Body and 27 Valve ass y are not supplied as an i...

Page 23: ... T4012 25211 ARM 1 6 T4012 25311 BRACKET 1 7 3495 25410 BOLT 1 8 3495 25420 SPRING 1 9 3495 25440 WASHER 1 10 01584 00605 NUT 1 11 3495 25450 WASHER 2 12 T4012 25511 SWITCH 1 13 T4012 83110 CABLE COMP 1 14 T4012 25610 TUBE 1 15 1601 72411 CAP 1 16 2750 51501 GRIP ASSY 1 17 2750 51520 WING BOLT 1 18 3495 51430 WING NUT 1 19 3238 15230 WASHER 2 20 2750 51540 NUT 1 21 2750 32541 BOLT 2 ...

Page 24: ...nsibilities As the small off road engine owner you are responsible for the performance of the required maintenance listed in your owner s manual KOMATSU ZENOAH recommends that you retain all receipts covering maintenance on your small off road engine but KOMATSU ZENOAH can not deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance A...

Page 25: ...T PART THAT IS 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 FAIRURE 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 TH...

Page 26: ... durabilité 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 mis...

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Page 28: ...KOMATSU ZENOAH AMERICA INC 4344 Shackleford Road Suite 500 Norcross Georgia 30093 ...

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