STIHL BR 320, 400 Instruction Manual Owner's Manual Assembling Safety Precautions Operating Instructions Maintenance &RQWHQWV Parts and Controls 2 Replacing the Starter Rope This Manual contains operating and Safety Precautions 4 and Rewind Spring 20 safety instructions for all STIHL BR 320, Assembling the Blower 10 Operating Instructions 23 BR 320 L, BR 400 blowers. Using the Blower 11 Storing the Machine 23 Pay special attention to the safety Fuel 12 Maintenance Chart 24 precautions outlined on pages 4 to 9. Fueling 13 Specifications 25 Allow only persons who understand this Starting 14 Manual to operate your blower. Cleaning the Air Filter 16 STIHL Incorporated Federal and To receive maximum performance and Adjusting the Carburetor 16 California Emission Control Warranty satisfaction from your STIHL blower, it is Motormanagement 16 Statement 27 important that you read and understand Checking the Spark Plug 18 the maintenance and safety precautions Spark Arresting Screen in Muffler 19 before using your blower. Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this Manual. :DUQLQJ Because a blower is a high-speed tool, some special safety precautions must be observed as with any other power tool to reduce the risk of personal injury. Careless or improper use may cause serious or even fatal injury. STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time-to-time. If the operating characteristics or the appearance of your blower differ from those described in this Manual, please Printed on chlorine-free paper contact your STIHL dealer for information and assistance. 1999 Andreas Stihl AG & Co., Waiblingen 0458 353 3021. M10. L9. PM. Printed in USA %5 3DUWVDQG&RQWUROV 1 = Nozzle 2 = Blower tube 3 = Control handle 4 = Throttle trigger 5 = Setting lever 6 = Stop switch 5 7 = Pleated hose 1 6 8 = Harness 4 8 9 = Back plate 3 11 10 = Back padding 9 11 = Air filter 2 7 10 353BA031 12 = Rubber buffers 13 = Spark plug boot 14 = Muffler (with spark arresting screen) 15 = Carburetor adjusting screws 16 = Choke knob 12 17 = Starter grip 13 18 = Fuel filler cap 14 15 ✽ 16 = Serial number 18 12 17 353BA032 033 KN A %5 'HILQLWLRQV 1R]]OH $LUILOWHUFRYHU Aims and widens the spray or Cover the air filter element. airstream. 5XEEHUEXIIHUV %ORZHUWXEH Elements designed to reduce the Directs spray or airstream. transmission of vibrations created by the engine to the operators back. &RQWUROKDQGOH Handle on the flexible hose to hold 6SDUNSOXJWHUPLQDO and direct the tube in the required Connects the spark plug to the direction. ignition wire. 7KURWWOHWULJJHU 0XIIOHU Controls the speed of the engine. Attenuates exhaust noises and diverts exhaust gases away from 6HWWLQJOHYHU operator. Sets the trottle to various positions. &DUEXUHWRUDGMXVWHPHQWVFUHZV 6WRSVZLWFK For tuning carburetor. Stops engine. &KRNHNQRE 3OHDWHGKRVH Eases engine starting by enrichting For spraying, dusting or spreading mixture. in the desired direction. 6WDUWHUJULS +DUQHVV The grip of the pull starter, which is For carrying the unit. the device to start the engine. %DFNSODWH )XHOILOOHUFDS Helps protect the back of the user. For closing the fuel tank. %DFNSDGGLQJ Increases carrying comfort. %5 6DIHW\ 3UHFDXWLRQV 6DIH XVH RI D EORZHU LQYROYHV :DUQLQJ :DUQLQJ The use of any blower may 1. the operator The STIHL BR 320, 400 is equipped be dangerous. It is important 2. the blower with an antivibration system (AV). The that you read, fully under- 3. the use of the blower . AV system is designed to reduce the stand and observe the follow- transmission of engine vibrations to the ing safety precautions and warnings. operator’s hands. An AV system is 7+( 23(5$725 recommended for those operators who Reread the owner‘s manual use blowers on a regular or sustained and the safety instructions 3K\VLFDO &RQGLWLRQ basis. periodically. You must be in good physical condition Antivibration systems do not guarantee and mental health and not under the that you will not sustain whitefinger :DUQLQJ influence of any substance (drugs, disease or carpal tunnel syndrome. Careless or improper use of the ma- alcohol, etc.) which might impair vision, Therefore, continual and regular users chine may cause serious injury. Have dexterity or judgment. Do not operate a should monitor closely the condition of your STIHL Dealer show you how to blower when you are fatigued . their hands and fingers. If any of the operate your blower. Observe all applica- Be alert - if you get tired while operating above symptoms appear, seek medical ble local safety regulations, standards your machine, take a break. Tiredness advice immediately. and ordinances. may result in loss of control. Working with any blower can be strenuous. If 3URSHU &ORWKLQJ :DUQLQJ you have any condition that might be Minors should never be allowed to use a aggravated by strenuous work, check Clothing must be sturdy and snug-fitting, blower : Bystanders, especially children, with your doctor before operating the but allow complete freedom of move- and animals should not be allowed in the machine. ment. Avoid loose-fitting jackets, flared area where a machine is in use. or cuffed pants, scarfs, unconfined long Never let the unit run unattended. hair or anything that could be drawn into Do not lend or rent your machine without :DUQLQJ the air intake. the owner‘s manual. Be sure that Prolonged use of a blower, (or other anyone using your unit understands the machines) exposing the operator to Wear overalls or long information contained in this manual. vibrations may produce whitefinger pants to protect your legs. Most of these safety precautions and disease (Raynaud‘s phenomenon) or Do not wear shorts. warnings apply to the use of all STIHL carpal tunnel syndrome. These con- Use of gloves when blowers. Different models may have ditions reduce the hand‘s ability to feel working with the blower different parts and controls. See the and regulate temperature, produce is recommended. appropriate section of your owner‘s numbness and burning sensations manual for a description of the controls and may cause nerve and circulation Good footing is most important. Wear and function of the parts of your damage and tissue necrosis. sturdy shoes with nonslip soles. machine. %5 with the specific STIHL blower models :DUQLQJ are authorized. Although certain un- :DUQLQJ To reduce the risk of injury associated authorized attachment are useable for Gasoline is an extremely with the inhalation of dust, use a face the STIHL blower, their use may be flammable fuel. If spilled filter mask when using your blower in extremely dangerous. or ignited by a spark or dusty conditions. other ignition source, it can cause fire and :DUQLQJ serious burn injury or property damage. Proper eye protection is a must. Even 7+( 86( 2) 7+( %/2:(5 Use extreme caution when handling though the discharge is directed away gasoline or fuel mix. from the operator, ricochets and 7UDQVSRUW bounce-backs can occur during blower Always turn off the engine before taking Do not smoke or bring any fire or flame operations. the machine off your back and putting it near the fuel. down. When transporting your unit in a Never operate a blower vehicle, properly secure it to prevent unless wearing goggles or turnover, fuel spillage and damage to properly fitted safety glasses the machine. )XHOLQJ LQVWUXFWLRQV with adequate top and side protection which comply with :DUQLQJ Fuel your machine in well-ventilated ANSI Z 87.1 (or your appli- Before starting work, always inspect the areas, outdoors only. Always shut off the cable national standard). rubber buffers which connect the engine engine and allow it to cool before refuel- to the pack frame. If the buffers are torn ing. Relieve fuel tank pressure by Blower noise may damage your hearing. or damaged, they should be replaced by loosening fuel cap slowly. Never remove Wear sound barriers (ear plugs or ear your STIHL dealer. Failure of one or fuel filler cap while engine is running. mufflers) to protect your hearing. more buffers may cause the engine or Continual and regular users should have fuel tank to hit or rub against other parts, Select bare ground for fueling and move their hearing checked regulary. and may lead to serious injury from at least 10 feet (3 m) from the fueling increased vibrations or from fire as the spot before starting the engine. Wipe result of fuel leakage. off any spilled fuel before starting your 7+( %/2:(5 Adjust carrying harness to suit your size blower and check for leakage. before starting work. Always tighten fuel filler cap securely For illustrations and definitions of the after fueling. blower parts see the chapter on "Parts and Controls"! )XHOLQJ :DUQLQJ :DUQLQJ This STIHL unit uses an oil-gasoline To reduce the risk of serious injury from Never modify a blower in any way. Only mixture for fuel (see the chapter on burns, never attempt to refuel the unit attachments supplied by STIHL or "Fuel" of your owner‘s manual). until it has been completely removed expressly approved by STIHL for use from the operator. %5 from thrown objects, insure that by- :RUNLQJ LQVWUXFWLRQV DQG LPSRUWDQW :DUQLQJ standers are at least 50 feet (15m) away DGMXVWPHQWV Check for fuel leakage while refueling during use. and during operation. If fuel or oil leakage is found, do not start or run the Stop the engine immediately if you are :DUQLQJ engine until leak is fixed and spilled fuel approached. Never operate your machine if it is has been wiped away. Take care not to damaged, improperly adjusted or not get fuel on your clothing. If this happens, The assistance of another person may completely and securely assembled.