Stihl BR 400 Instruction Manual - Page 6

To reduce the risk of injury associated with the inhalation of dust, use a face filter mask when using your blower in dusty conditions. Proper eye protection is a must. Even though the discharge is directed away from the operator, ricochets and bounce-backs can occur during blower operations. Never operate a blower unless wearing goggles or properly fitted safety glasses with adequate top and side protection which comply with ANSI Z 87.1 (or your applicable national standard). Blower noise may damage your hearing. Wear sound barriers (ear plugs or ear mufflers) to protect your hearing. Continual and regular users should have their hearing checked regulary. For illustrations and definitions of the blower parts see the chapter on "Parts and Controls"! Never modify a blower in any way. Only attachments supplied by STIHL or expressly approved by STIHL for use with the specific STIHL blower models are authorized. Although certain unauthorized attachment are useable for the STIHL blower, their use may be extremely dangerous. Always turn off the engine before taking the machine off your back and putting it down. When transporting your unit in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to the machine. Before starting work, always inspect the rubber buffers which connect the engine to the pack frame. If the buffers are torn or damaged, they should be replaced by your STIHL dealer. Failure of one or more buffers may cause the engine or fuel tank to hit or rub against other parts, and may lead to serious injury from increased vibrations or from fire as the result of fuel leakage. Adjust carrying harness to suit your size before starting work. This STIHL unit uses an oil-gasoline mixture for fuel (see the chapter on "Fuel" of your owner's manual). Gasoline is an extremely flammable fuel. If spilled or ignited by a spark or other ignition source, it can cause fire and serious burn injury or property damage. Use extreme caution when handling gasoline or fuel mix. Do not smoke or bring any fire or flame near the fuel. Fuel your machine in well-ventilated areas, outdoors only. Always shut off the engine and allow it to cool before refueling. Relieve fuel tank pressure by loosening fuel cap slowly. Never remove fuel filler cap while engine is running. Select bare ground for fueling and move at least 10 feet (3 m) from the fueling spot before starting the engine. Wipe off any spilled fuel before starting your blower and check for leakage. Always tighten fuel filler cap securely after fueling. To reduce the risk of serious injury from burns, never attempt to refuel the unit until it has been completely removed from the operator.