Echo GT-22G Operator's Manual

Also see for GT-22G: Operator's manual

Contents

20Carburettor adjustment∗ Idle speed adjusterEvery unit is test run at the factory and the carburettor is fine tuned for maximum performance.Any change from this setting should be performed only with the aid of an accurate tachometer(see Specification for r/min setting).Before adjusting carburettor, clean or replace air filter, start engine and run several minutes tobring it to operating temperature.Idle speed adjustmentTurn idle speed adjuster clockwise until cutting attachment begins to turn, then turn screw outanticlockwise until cutting attachment stops turning.Turn screw out, anticlockwise, and additional 1 turn.Cleaning silencer1. Silencer. 2. Two bolts. 3. Silencer cover. 4. Hexagonal wrench. Clean deposits from silencer and tighten two bolts.Lubricating drive shaft (flexible shaft)1. Shield. 2. Screw. 3. Bearing housing. 4. Bolt. 5. Flexible shaft.6. Shaft tube.1) Remove plastic shield.2) Loosen bearing housing locating screw, at the top of the housing, remove mounting bolt.3) Pull flexible shaft from the shaft tube, wipe clean and recoat with a thin coating 10 to 20 g,of lithium base grease.4) Slide the flexible shaft back in the shaft tube.Do not get dirt on the flexible shaft.5) Install the bearing housing and shield.Checking the nylon line head1. Pawl. 2. Cover. 3. Housing. 4. Window.(1)Make sure each periphery of the two retaining pawls of cover spreads almost fully up to theouter periphery of the respective housing window.(2)Check mount of cutting head on trimmer and tighten if it is loose.(3)Check the cutter head for deflection or abnormal noise rotating it by hand.Deflection or abnormal noise can cause abnormal vibration to occur or mount to trimmer toloosen during rotation which is dangerous.(4)Inspect cover and tap knob for wear.Before the slot of cover disappears that serves as a mark to indicate, when worn out, endof useful life or when slot appears on bottom of the tap knob, replace them with new partswithout fail.(5)Check the cutting head for crack or chip.Replace parts that show any crack or chip with new ones without fail.CAUTIONCutting attachment must not turn when unit is idling.NOTEUse good quality lithium multi grease.