Stihl FS 460 C-EM Product Instruction Manual - Page 34
Spark Plug
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English At temperatures above +70 °F (+20 °C) 2 N Always return the shutter (2) to summer position Do not use the machine in winter operation at temperatures above +70 °F (+20 °C), otherwise there is a risk of engine damage due to overheating! At temperatures below +14 °F (-10 °C) Under extreme winter conditions with the following conditions - At temperatures below +14 °F (-10 °C) - Powdered or drifting snow use of the "cover plate kit", which is available as a special accessory, is recommended. 9926BA018 KN 9926BA019 KN 9926BA020 KN 2 5 4 The "cover plate kit" contains the following parts for covering the machine: 4 Cover plate for partially covering the slits in the starter housing 5 Filter insert made of cloth and plastic for the air filter - O-ring for the filler cap - Information sheet describing conversion of the machine After installation of the cover plate kit: N Set shutter (2) to winter operation N if the chain saw is extremely cold (frost formation) - after starting, bring the engine up to operating temperature at increased idle speed (cutting attachment rotates!) At temperatures above +14 °F (-10 °C) N Reconvert the machine and replace the parts from the "cover plate kit" with the parts for summer operation The O-ring installed on the filler cap with the "cover plate kit" can remain on the machine. Depending on the ambient temperature: N Set shutter (2) to summer or winter operation Spark Plug If engine is down on power, difficult to start or runs poorly at idling speed, first check the spark plug. Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded. Wrong fuel mix (too much engine oil in the gasoline), a dirty air filter and unfavorable running conditions (mostly at part throttle etc.) affect the condition of the spark plug. These factors cause deposits to form on the insulator nose which may result in trouble in operation. Removing the Spark Plug 1 N Rotate the screw (1) in the cap (2) until the screw head projects from it. 32 FS 460 C-M, FS 460 C-M L