Stihl FS 400 Instruction Manual - Page 13
Maintenance, Repair And, Storing - service manual
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English / USA !Warning! Keep hands and feet away from cutting tool. Never touch a rotating cutting tool with your hand or any part of your body. It continues to rotate for a short period after the throttle trigger is released (flywheel effect). Important adjustments !Warning! To reduce the risk of personal injury from loss of control or contact with the running cutting tool, do not use a cutting tool with incorrect idle adjustment. At correct idle speed, the cutting tool should not move. For directions on how to adjust idle speed, see the appropriate section of your owner's manual. If you cannot set the correct idle speed, have your STIHL dealer check your clearing saw and make proper adjustments and repairs. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of the emission control devices and systems may be performed by any nonroad engine repair establishment or individual. However if you claim warranty coverage for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used, STIHL may deny warranty. !Warning! Use only identical STIHL replacement parts for maintenance and repair. Use of non-STIHL parts may cause serious or fatal injury. Follow the maintenance and repair instructions in the appropriate section of your owner's manual. Please refer to the maintenance chart on the last pages of this manual. !Warning! Always stop the engine and make sure that the cutting tool is stopped before doing any maintenance or repair work or cleaning the clearing saw. Do not attempt any maintenance or repair work not described in your owner's manual. Have such work performed at your STIHL service shop only. Wear gloves when handling or doing maintenance on blade. !Warning! Never repair damaged cutting attachments by welding, straightening or modifying the shape. This may cause parts of the cutting tool to come off and result in serious or fatal injuries. !Warning! To reduce the risk of fire and burn injuries, check fuel filler cap for leaks at regular intervals. Use the specified spark plug and make sure it and the ignition lead are always clean and in good condition. Always press spark plug boot snugly onto spark plug boot of the proper size. (Note: If boot has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire. 12 FS 300, FS 350, FS 400, FS 450, FS 480