Controls 2 Safety Precautions 4 Assembly of Unit 11 Fuel 14 Fueling 15 Control Handle 16 Starting 17 Air Filter 19 Adjusting the Carburetor 20 Operating Instructions 21 Checking Spark Plug 22 Replacing the Starter Rope and Rewind Spring 23 Special Accessories 26 Metering Unit 27 Notes on Use of Mistblower 28 Printed on chlorine-free paper . 1999 Andreas Stihl AG & Co., Waiblingen 0458 352 3021. M0,15. G9. PM. Printed in USA Maintenance Chart 37 Specifications 38 STIHL Incorporated Federal Emission Control Warranty Statement 39 This Manual contains operating and safety instructions for all STIHL SR 320, SR 400 mistblowers. Pay special attention to the safety precautions outlined on pages 4 to 10. Allow only persons who understand this Manual to operate your mistblower. To receive maximum performance and satisfaction from your STIHL mistblower, it is important that you read and understand the maintenance and safety precautions before using your mist- blower. Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this Manual. . Because a mistblower 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 mistblower differ from those described in this Manual, please contact your STIHL dealer for information and assistance. . . . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 BA001 KN 15 15 352BA002 KN 18 16 17 1920 21 22 23 A003 KN 1 = Baffle screen 2 = Nozzle 3 = Metering knob 4 = Extension tube 5 = Throttle trigger 6 = Setting lever 7 = Stop switch 8 = Control handle 9 = Stop cock 10 = Pleated hose 11 = Carrying harness 12 = Back plate 13 = Back rest pad 14 = Air filter cover 15 = Rubber buffers 16 = Container filler cap 17 = Container 18 = Spark plug boot 19 = Carburator adjustment screws 20 = Choke knob 21 = Fuel filler cap 22 = Starter grip 23 = Muffler . . . . . . & . . 2#*. To vary the direction and shape of For carrying the unit. For closing the fuel tank. the spray. . * . . *. . . Helps protect the back of the user. The grip of the pull starter, which is Directs and widens the spray. the device to start the engine. . *-. . . Increases carrying comfort. . #. For varying the spraying rate. Attenuates exhaust noises and . 0 (. diverts exhaust gases away from . !" # . Covers the air filter element. operator. Accessory for lengthening the discharge tube. $. # #. Elements designed to reduce the $. %& . transmission of vibrations created by Controls the speed of the engine. the engine to the operators back. '. (. '. *. Sets the throttle to various positions. For closing the container. ). *+ &. ). . Stops engine. Contains the material to be sprayed. ,. &-. ,. **# . Handle on the flexible hose to hold Connects the spark plug to the and direct the tube in the required ignition wire. direction. .. # -1# +. .. * . For tuning carburator. Opens and closes spray liquid hose. . & . . / -& . Eases engine starting by enriching For spraying, dusting or spreading mixture. in the desired direction. . . . . The use of any mistblower may be dangerous. It is important that you read, fully understand and observe the following safety precautions and warnings. Reread the owner‘s manual and the safety instructions periodically. . Careless or improper use of the machine may cause serious injury. Have your STIHL Dealer show you how to operate your mistblower. Observe all applicable local safety regulations, standards and ordinances. . Minors should never be allowed to use a mistblower: Bystanders, especially children, and animals should not be allowed in the area where a machine is in use. Never let the unit run unattended. Do not lend or rent your machine without the owner‘s manual. Be sure that anyone using your unit understands the information contained in this manual. Most of these safety precautions and warnings apply to the use of all STIHL mistblowers. Different models may have different parts and controls. See the appropriate section of your owner‘s manual for a description of the controls and function of the parts of your machine. . 1. the operator 2. the mistblower 3. the use of the mistblower . . . You must be in good physical condition and mental health and not under the influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or judgment. Do not operate a mistblower when you are fatigued. Be alert -if you get tired while operating your machine, take a break. Tiredness may result in loss of control. Working with any mistblower can be strenuous. If you have any condition that might be aggravated by strenuous work, check with...