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Always operate trimmer at full throttle. Cut tall grass from the top down.This will prevent grass from wrapping round the drive shaft housing and string head, which may cause damage from overheating. If grass becomes wrapped round the string head, stop the engine, disconnect the sparking plug wire, and remove the grass. Prolonged cutting at partial throttle will result in oil dripping from the silencer. Fig. 5 ...................................................................... 9 OPERATION ADV