This avoids unnecessary high loads during the break-in period. As all moving parts have to bed in during the break-in period, the frictional resistances in the engine are greater during this period. The engine develops its maximum power after about 5 to 15 tank fillings. During Operation After a long period of full throttle operation, allow the engine to run for a short while at idle speed so that engine heat can be dissipated by the flow of cooling air. This protects engine- mounted components

SR 430, SR 450 English Checking the Spark Plug 000BA039 KNA Engine Running Behavior If engine running behavior is unsatisfactory even though the air filter 1 is clean and the carburetor is properly adjusted, the cause may be the muffler. Have the muffler checked for contamination (carbonization) by your servicing dealer. STIHL recommends that you have N Clean dirty spark plug. N Check electrode gap (A) and 2 servicing and repair work carried out exclusively by an authorized STIHL servicing deale

Fuel mix ages Only mix sufficient fuel for a few days work, not to exceed 3 months of storage. Store in approved fuel-canisters only. When mixing, pour oil into the canister first, and then add gasoline. Close the canister and shake it vigorously by hand to ensure proper mixing of the oil with the fuel. Gaso- Oil (STIHL 50:1 or line equivalent high-quality oils) US gal. US fl.oz 1 2.6 2 1/ 2 6.4 5 12.8 Dispose of empty mixing-oil canisters only at authorized disposal locations. SR 340, SR 420 En

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 Emissi

. Clean up oil or fuel spillage. • Stop and inspect the equipment if you strike an object. Repair, if necessary, before restarting. • Never make adjustments or repairs with the engine running unless specified otherwise. • Park machine on level ground. Never allow untrained personnel to service machine. • Carefully release pressure from components with stored energy. (e.g. springs) • Only replace impellers. Never straighten or weld them. • Keep hands and feet away from moving parts. • Frequently

Small stones, twigs, or grit can be thrown with sufficient force to cause injury or damage. 4. When running machine, DO NOT PUT HANDS OR FEET INTO INLET OR OUTLET because the rotating impeller can cause injury. 5. Never start engine or use blower without impeller cover mounted in place. Do not put any objects like sticks or fingers in holes of impeller cover. 6. Stop the engine and disconnect the spark plug wire before attempting to clean obstructions or blockage from the intake or discharge

Shaft Key Engine Housing 5/16-24 x 3/4" HHCS Pltd 5/16" Split Lockwasher Pltd Impeller 3/8-24 x 1-1/4" HHCS Pltd Housing Spacer Front Housing 5/16-18 x 5/8" HHCS Pltd 5/16-18x1-1/2" HHCS Pltd Impeller Cover Chute Weld Assembly Diverter Weld Assembly 3/8" Internal Lockwasher Pltd. Vinyl Grip, Diverter Handle Diverter Clip 1/4-20 x 1/2" HHCS Pltd 1/4" Split Lockwasher Pltd 1/4" Flat Washer Pltd Spring, Diverter 1/4-20 x 5" Lg. Carriage Bolt 1/4-20 x 6" Lg. Carriage Bolt Defle

IMPROPER OPERATION CAN CAUSE SERIOUS INJURY. CAUTION \ DO NOT REMOVE IMPELLER 5 COVER WHILE MACHINE IS V RUNNING. SEVERE INJURY i WILL RESULT. 5 TJFJrjrjr.ArW.WJTJF; PART NO. 091-0059 CAUTION ! |1) READ OPERATING INSTRUCTIONS THOROUGHLY BEFORE USING. A (2) DAN6ER: Rotating parts. Keep hands, feet, and clothing out of openings at all a times and especially while machine is running. y ~ (3) NEVER operate with the impeller housing cover removed. ^ (4) NEVER direct the discharge air stream

Box 111 * Parker Ford, PA 19457-0111 Phone: (610) 495-7181 or (800) 348-1117, Fax: (610) 495-5951 McDonough, GA., 30253 U.S.A. COPYRIGHT ©1999 SNAPPER INC. ALL RIGHTS RESERVED MANUAL No. 0-6168 (f.R. 08/02/99) MANUAL No. 06168 2 LEAF BLOWER PART NO. Item No. SLB552PN PART NO. SLB862IC Quantity Description 1 705-0088 2 703-0108 3 090-0457 4 705-0028-2 5 090-0091 6 705-0044 7 705-0034 8 705-0002 9 090-0057 10 703-0422 11 090-0031 12 703-0415 13A 090-0090 13B 14 703-0424

If properly cared for, your new blower will provide years of dependable service. Please read and follow this instruction manual carefully in order to get the most out of your new equipment. As you carefully unpack your unit, you will find the following items: 1 Blower Unit 1 Handle Assembly including: 1 – Upper Handle with foam grip 2 – Lower Handles 1 Front Caster Wheel Kit including: 1 – Pair Front Caster Brackets (l&r) 1 – Front Caster Wheel 1 – Axle Bolt with lock nut 1 Package of assembly h