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SHINDAIWA OWNER’S/OPERATOR’S MANUAL B450 BRUSHCUTTER EPA VERSION Minimize the risk of injury to yourself and others! Read this manual and familiarize yourself with the contents. Always wear eye and hearing protection WARNING! when operating this unit. Part Number 62022-94113 Rev. 5/05...
The engine exhaust from this product area. If you have questions regarding your contains chemicals known to the State B450-series power tool, or if you do not of California to cause cancer, birth understand something in this manual, your defects or other reproductive harm.
General Safety Instructions The Properly Equipped Operator WARNING! Wear hearing protection devices and a broad-brimmed Wear close-fitting clothing to Use Good Judgment hat or helmet. protect legs and arms. Gloves ALWAYS wear eye protection to shield offer added protection and are strongly recommended.
Make sure all information labels are undamaged and readable. Immediately replace damaged or missing information labels. New labels are available from your local authorized Shindaiwa dealer. B450 This label indicates the minimum distance between front handle and rear grip per ANSI B175.3.
Fan Cover Housing Mainshaft Outer Tube B45003 B45002 The B450 is equipped with a swivel feature that allows the outer tube (and cutting attachment) to be rotated without rotating the powerhead. Tightening the swivel Figure 5A Swivel Grease lock prevents outer tube rotation.
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Assembly and Adjustments Install the Cutting Attachment Shield Sub-Shield. Socket-head (when trimmer head is in use) Cap Screws 1. Attach the shield extension to the cutting attachment shield. Bracket Outer Tube WARNING! Line Cutter NEVER use this machine without sub- shield when using a trimmer head.
Assembly and Adjustments Handlebar Throttle Cable Throttle Assembly Handlebar Bracket Installation Decal B45006 Outer Tube Handlebar Lower Cap Retaining Screws Figure 7 1. Remove the 4mm retaining screw 2. Mount the handlebar on the outer tube 3. Reinstall the lower cap and retaining and lower cap from the handlebar and align it with the “Attach Handle bolts.
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Assembly and Adjustments Adjust Throttle Adjuster Cover Cable Adjuster 7 mm Free Play Cable Locknut B45014 B45013 Figure 12 Figure 13 1. Test throttle control for smooth opera- 3. If necessary, the “Free Play” clear- c. Thread or unthread the cable tion.
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B45018 Figure 14 NOTE: NOTE: The B450 is shipped with Holder A, the When installing certain blades, it may be nec- safety clip, Holder B, shaft bolt, and bolt essary to temporarily remove the safety clip. guard installed. The shaft bolt is a LEFT-...
NOTE: screwdriver wrench, remove the shaft gearcase and holder. The B450 is shipped with Holder A, the blade bolt, bolt guard, holder B and the safety retainer (safety clip), Holder B, shaft bolt, clip. (The bolt guard, shaft bolt and and bolt guard installed.
If fuel must be stored longer than type engines, and should never be unit if the carburetor, fuel lines, fuel 30 days and Shindaiwa One oil with fuel used in your Shindaiwa engine. tank and/or fuel tank cap are dam- stabilizer is not used, it should first be...
Starting the Engine (continued) Make sure the cutting attachment is clear of obstructions! WARNING! IMPORTANT! Before starting the engine, make sure The recoil starter can provide long-lasting children, bystanders, and pets and/or trouble free operation by following these any other objects are well clear of the recommendations: cutting attachment! The cutting attach- ment will rotate when the engine is...
Checking Unit Condition NEVER operate the unit with the cut- ALWAYS stop the engine immediately and Use only authorized Shindaiwa parts and ting attachment shield or other protective accessories with your Shindaiwa trimmer. check for damage if you strike a foreign devices removed! Do not make modifications to your unit...
A brushcutter’s handlebar helps prevent damage. DO NOT use 2-tooth or NON- the operator from moving forward, or Shindaiwa approved 4-tooth cutting the unit moving rearward, thus prevent- Never use a blade for purposes blades with Shindaiwa brushcutters. ing inadvertent bodily contact with the other than those for which it was blade.
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Figure 31. that could entangle or break line. For best cutting performance and extending trimmer line life follow this Your Shindaiwa B450 brushcutter can be recommended procedures when using a equipped with one of several Shindaiwa string-type-cutting head. See Figure 30.
Spark Plug engine and check the blade for cracks or OR SERVICE CENTER AUTHORIZED other damage. Replace a damaged blade BY SHINDAIWA KOGYO CO., LTD. Keep the spark plug and wire connections THE USE OF PARTS THAT ARE NOT IMMEDIATELY! tight and clean.
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200-hour Maintenance Every 200-hours of Operation: Outer Tube (perform more frequently in dusty or dirty conditions). Remove the swivel joint lubrication plug and grease the joint with Shindaiwa Swivel Grease Gearcase Lubricant. P/N 13-57. See Plug Figure 36. Swivel Lock...
Shindaiwa Tornado™ Blade Multiple-tooth Circular Blade slightly dull, they can be re-sharpened with To sharpen the teeth on a Shindaiwa Use a round file to maintain a radius of a few strokes of a file. In order to keep the Tornado Blade, use a 7/32-inch round 0.04 to 0.06”...
Consult with an authorized servicing dealer. Improper fuel ratio. Refill with clean fresh unleaded gasoline with a pump octane of 87 or higher, mixed with Shindaiwa Premium 2-cycle mixing oil at a 50:1 gasoline/oil ratio. Fan, fan cover, cylinder fins dirty or damaged.
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Troubleshooting Guide (continued) ADDITIONAL PROBLEMS Symptom Possible Cause Remedy Clogged air filter. Clean or replace the air filter. Poor acceleration. Clogged fuel filter. Replace the fuel filter. Lean fuel/air mixture. Consult with an authorized servicing dealer. Idle speed set too low. Adjust: 2,750 (±250) RPM (min Switch turned off.
MAINTENANCE AND REPAIR REQUIREMENTS For parts listed under PARTS COVERED, the dealer authorized by Shindaiwa Kogyo Co., Ltd. will, at no cost to you, make the necessary You are responsible for the proper use and maintenance of the engine. diagnosis, repair, or replacement of any defective emission-related You should keep all receipts and maintenance records covering the component to ensure that the engine complies with applicable U.S.