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Manafacture: Echo
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File name: PPF280es1112_050611.pdf
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manual abstract
Turn tension adjustment screw (C) to ensure chain tension adjuster pin fits into the guide bar adjuster hole. 8. Install sprocket cover (D), tighten guide bar nuts (A) finger tight, and fasten sprocket cover screw (B). 9. Adjust chain tension. Sprocket Cover Cleaning 1. Remove two (2) guide bar nuts (A), and unscrew sprocket cover screw (B). 2. Remove sprocket cover (D). 3. Gently brush debris from inside guide bar cover and from around sprocket. 4. Turn tension adjustment screw (C) to ensure chain tension adjuster pin fits into the guide bar adjuster hole. 5. Install sprocket cover (D), tighten guide bar nuts (A) finger tight, and fasten sprocket cover screw (B). 6. Adjust chain tension. To Adjust Saw Chain Tension E a C D B warningAlways disconnect spark plug wire before servicing cutting attach- ment. Wear gloves when handling saw chain, otherwise serious personal injury may result. To Adjust Saw Chain Tension1. Move stop switch to STOP position. 2. Disconnect spark plug lead. 3. Loosen two guide bar nuts (A) until finger tight. IMPORTANT Always loosen guide bar nuts before turning the chain tension ad- juster, otherwise the clutch cover and tensioner will be damaged. 4. Hold the bar nose up, and turn the adjuster screw (B) clockwise un- a B til the chain fits snugly against the underside of the bar, as shown. Cold Chain Only - turn adjuster screw CW an additional 1/8 - 1/4 turn. Power PrunerTMOperator's Manual29 5. Tighten both guide bar nuts with nose held up. Tighten rear nut first. 6. Pull the chain around the guide bar by hand. Reduce the chain tension if you feel tight spots. 7. When chain is properly tensioned, tighten guide bar nuts securely. IMPORTANT Tighten guide bar nuts to 8 - 9 N•m (71 - 80 in. lbs.) DO NOT over-tighten nuts. Damage may result. 8. Keep chain properly tensioned at all times. NOTE All chains require frequent adjustment. 9. Connect spark plug lead. IMPORTANT Check bar Part Number on your Power Pruner. Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above. Power Pruner B&C Combinations Bar P/n Chain P/n Chain Type Links Pitch gauge narrow Kerf 10" narrow bar P/N 10a4CD3739 90s39CQ 90 39 3/8" 0.043 12" narrow bar P/N 12a4CD3744 90s44CQ 90 44 3/8" 0.043 regular 10" regular bar P/N 10a0CD3739 91VXl39CQ 91 39 3/8" 0.050 12" regular bar P/N 12a0CD3744 91VXl44CQ 91 44 3/8" 0.050 B a 29 5. Tighten both guide bar nuts with nose held up. Tighten rear nut first. 6. Pull the chain around the guide bar by hand. Reduce the chain tension if you feel tight spots. 7. When chain is properly tensioned, tighten guide bar nuts securely. IMPORTANT Tighten guide bar nuts to 8 - 9 N•m (71 - 80 in. lbs.) DO NOT over-tighten nuts. Damage may result. 8. Keep chain properly tensioned at all times. NOTE All chains require frequent adjustment. 9. Connect spark plug lead. IMPORTANT Check bar Part Number on your Power Pruner. Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above. Power Pruner B&C Combinations Bar P/n Chain P/n Chain Type Links Pitch gauge narrow Kerf 10" narrow bar P/N 10a4CD3739 90s39CQ 90 39 3/8" 0.043 12" narrow bar P/N 12a4CD3744 90s44CQ 90 44 3/8" 0.043 regular 10" regular bar P/N 10a0CD3739 91VXl39CQ 91 39 3/8" 0.050 12" regular bar P/N 12a0CD3744 91VXl44CQ 91 44 3/8" 0.050 B a fIlIng sTandard saw ChaIn Level 2. IMPORTANT Dull or damaged cutters will result in poor cutting performance, increased vibration, and premature saw chain failure. warningAlways stop engine and disconnect spark plug wire before servic- ing guide bar and saw chain. Always wear gloves when filing saw chain, otherwise serious personal injury may result. 1. Set round file (A) in cutter at 30° angle. One fifth (1/5) of the file should be exposed above top cutter edge. 2. Keep file horizontal in cutter and file in one direction. 3. File until cutter top and side bevel edges are sharp without nicks. 4. Place depth gauge tool (B) firmly on top of cutter with .025 in. slot and end against front cutter raker. File cutter raker with flat file until flush with top of depth gauge. 5. Finish cutter sharpening by rounding front raker edge (C) with flat file. 6. Properly filed cutter is as shown. 7. Apply clean oil and rotate saw chain slowly to wash away filings. 8. If saw chain is coated or clogged with resin, clean in kerosene, then soak in oil. 1 2 3 30° 90° 4 5 (TOP PLaTE angLE) (DEPTH gaUgE) (TOP PLaTE CUTTing angLE) 6 55o Level 2. IMPORTANT Dull or damaged cutters will result in poor cutting performance, increased vibration, and premature saw chain failure. warningAlways stop engine and disconnect spark plug wire before servic- ing guide bar and saw chain. Always wear gloves when filing saw chain, otherwise serious personal injury may result. 1. Set round file (A) in cutter at 30° angle. One fifth (1/5) of the file should be exposed above top cutter edge. 2. Keep file horizontal in cutter and file in one direction. 3. File until cutte...