Echo PPT-2100 Operator's Manual

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16BA4. Tighten the 10mm linkage nuts (E).5. Check throttle for freedom of movement and make sure it returns toidle position. If the throttle linkage does not allow the carburetorthrottle plate (C) to return to idle against idle screw (D), loosenlinkage nuts; turn throttle linkage nut (E) counter clockwise untilthrottle plate (C) rests against idle screw (D). Hold linkage nut (E)from turning and tighten other linkage nut.6. Connect ground wire terminal under screw (F) on fan housing.7. Connect stop switch wire to stop wire (G) on engine.SAW CHAIN TENSION ADJUSTMENTWARNING DANGERAlways wear work gloves when handling saw chain, otherwiseserious personal injury may result.To Adjust Saw Chain Tension.1. Loosen two (2) 11 mm (7/16 in.) guide bar bolts (A) located oncutting attachment using the adjustment wrench provided.2. Turn saw chain tnesioning screw (B) (located next to guide bar insprocket cover) clockwise to tighten saw chain on guide bar.Turning screw counter clockwise will loosen saw chain on guidebar.3. Tighten guide bar bolt firmly, but not so much that the head startsto distort. Move saw chain backwards on guide bar by hand. Sawchain should move freely on bar if it is in proper mesh withsprocket.Keep the saw chain lubricated and properly adjusted and the guide barbolts tightened firmly at all times. If saw chain is difficult to rotate orbinds on guide bar, it is too tight.AB C DEB