Stihl SR 420 Instruction Manual - Page 12

English / USA !Warning! Adjust carrying harness to suit your size before starting work. In an emergency, you may slip out of the harness and throw off the machine quickly. Try slipping out of the harness a number of times before using the machine in order to become accustomed to it. Do not throw off the machine while practicing as it could damage the machine. !Warning! In order to keep the container upright and reduce the risk of spillage, do not bend at the waist. Bend only at the knees and support yourself as required to ensure proper balance. Remember that a mistblower filled with liquid has a significant amount of weight. Use caution when bending, leaning or walking. !Warning! Do not overreach. Keep proper footing and balance at all times. Special care must be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Watch for hidden obstacles such as tree stumps, roots and ditches to avoid stumbling. For better footing, clear away fallen branches, scrub and cuttings. Be extremely cautious when working on slopes or uneven ground. To reduce the risk of stumbling and loss of control, do not walk backward while operating the machine. !Warning To reduce the risk of injury from loss of control, never work on a ladder, in a tree or on any other insecure support. Working conditions Operate and start your power tool only outdoors in a well ventilated area. Operate it under good visibility and daylight conditions only. Work carefully. !Warning! As soon as the engine is running, this product generates toxic exhaust fumes containing chemicals, such as unburned hydrocarbons (including benzene) and carbon monoxide, that are known to cause respiratory problems, cancer, birth defects, or other reproductive harm. Some of the gases (e.g. carbon monoxide) may be colorless and odorless. To reduce the risk of serious or fatal injury/illness from inhaling toxic fumes, never run the machine indoors or in poorly ventilated locations. !Warning! Inhalation of chemicals can cause susceptible persons to have an allergic or asthmatic reaction. Substantial or repeated inhalation of certain chemicals may cause respiratory disease, cancer, birth defects or other reproductive harm. Control the chemical spray/dust at the source where possible. Use good work practices, such as operating the unit so that the wind or operating process does not blow the chemical spray/dust back on the operator. Follow the recommendations of EPA/OSHA/ NIOSH and occupational and trade associations with respect to proper usage. When the inhalation of the chemical spray/dust being applied cannot be avoided, the operator and any bystanders may need to wear a respirator approved by NIOSH/MSHA for the type of chemical encountered. Consult the label of the chemical product being used. SR 340, SR 420 11