RedMax G621AVS manual NGK BPM7A

Page 19

9. Maintenance

F32

F33

4. Spark plug (F32)

Clean the electrodes with a wire brush and reset the gap to 0.65 mm as necessary.

Champion: CJ-7Y

or

NGK: BPM7A

5. Sprocket (F33)

Check for cracks and for excesslve wear interfenng with the chain drive. If the wearing is found obviously, replace it with new one. Never fit a new chain on a worn sprocket, or a worn chain on a new sprocket.

6. Spark arrester

Remove the front Cover of the muffler and inspect the spark arresting screen. Brush off Carbon deposits as necessary. Replace if damaged.

NOTE

•When servicing the spark arrester, refer to the Service Parts List supplied with the unit for its location and correct assembly order of parts.

•Be sure to use a correct tool for the muffler nuts. The nuts are tightened firmly, and the use of inadequate tool will damage them.

7. Front and Rear dampers

Replace if adhered part is peeled or crack is observed on the rubber part.

Replace if the inside of the rear damper metal has been beaten by the stopper bolt and the clearance of the metal increased.

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Contents 3369-93110 G621AVSContents Safety FirstG621AVS Power unit SpecificationsParts location Engine Family 5KZXS Mnem Symbols on the machineFor safe operation Kickback Safety Precautions for Chain SAW Users Loosen Tighten Installing guide bar and saw chainChain cover Chain tensioner nut Moving DirectionFuel and Chain oil HOW to MIX FuelRecommended Mixing Ratio Gasoline 50OIL For Your Engine LIFE, Avoid Fueling the UnitChain OIL Throttle interlock Latch Choke knob Chain oil Fuel SwitchOperation Starting EngineChecking OIL Supply Adjusting Carburetor F13ANTI-FREEZE Parts Icing Prevention SystemFront handle Released Braking Brake lever How to confirmF19 Chain BrakeGuard Against Kickback F20 SawingFelling a Tree F21 F21Log hanging off the ground F23 F22 F23 F24 F25 Log lying on the ground F22Cutting Limb of Fallen Tree F24 Oiling port Guide bar MaintenanceMaintenance After Each USE Oiling portPeriodical Service Points NGK BPM7A F34 F35 Maintenance of Saw Chain and Guide BarSAW Chain GB BAR StorageGuide BAR Oregon BARCase 2. Lack of power/Poor acceleration/Rough idling Troubleshooting GuideCase 3. Oil does not come out Parts list Fig.A-1 Power Unit G621AVS Fig.A-2 Power Unit  27  Fig.B Carbburetor Fig.D Cutting Head Chain Saws Limited Warranty RedMax Garantie limitée des tronçonneuses