STIHL BR 500, 550, 600 Warning! Read and follow all safety precautions in Instruction Manual – improper use can cause serious or fatal injury. The STIHL BR 550 backpack blowers are no longer in production, but you can find specs, parts, manuals or similar products here. Backpack blowers (BR) > BR 550; STIHL power tools - A Your product may be a slightly older production model but the manual will still be appropriate for the View and Download Stihl BR 500 service manual online. Backpack Blowers. BR 500 Blower pdf manual download. Also for: Br 550, Br 600. View and Download Stihl BR 500 instruction manual online. BR 500 Blower pdf manual download. Also for: Br 550, Br 600. Amazon.com: stihl br 550. Fitment models: STIHL BR500 BR550 BR600 backpack blower. Stihl BR 500, 550, 600 Repair Manual. by Stihl. Select a page from the Stihl BR 550 Backpack Blower (BR 550) exploaded view parts diagram to find and buy spares for this machine. Find great deals on eBay for stihl br550 backpack blower parts. Shop with confidence. Find great deals on eBay for stihl backpack blower br550. STIHL BR550 Commercial Gas Backpack Leaf Blower 64 BR550, BR600 Backpack Blower Owners Manual Stihl BR550 BackPack Blower Crankshaft I notice the spur gear doesn't have a keyway or alignment marks. Workshop manual provides no spec for this.