E BLADE SHARPENING1. Brush BladeA WAP G• Check blades for flatness periodieaU}_ Laythe blade on aflat surface andinspect the blade forflatness before sharpening. Throw away a bladethat is not fiat.• File or grind each edge in the same mannerto maintain a balanced blade. Figure 30.A WARrinGAlways replace a blade that is bent, warped,cracked, or damaged in any other way. Never at-tempt to straighten and re-use a damagedblade. Use only the specified replacement bladeWear protective gloves whenhandling or performing maintenance onthe blade to help avoid injur_A WAP NG iTo prevent the blade from cracking or flying_apart after sharpening, do not f'de within 1/4_inch of the radii shown in Figure 30. ]BRUSH BLADEFile Or GrindBlade As Shown\ MaintainRadiusIn This AreaSharpen ThisArea OnlyRadiusIn This Arev_Figure 302. 4 Point Weed BladeA WA NGi blade. The _blade wi_ continue to spin after the!engine stops or after the throttle trigger hasibeen released. Make sure the blade has stoppedieoastmg and disconnect the spark plug beforeiperforming work on the blade.* The 4 point, 8 inch blade is reversible. Whenthe cutting edge on one side becomes dull, turn theblade over. When both sides of cutting edges be-come du_, the blade may be resharpened.• Check blades for flatness periodically. Laythe blade on a fiat surface and inspect the blade forflatness before sharpening. Throw away a bladethat is not flat.• File or _d each edge in the same mannerto maintain a balanced blade. Figure 30.A WARNINGAlways replace a blade that is bent, warped,cracked, or damagedin any other way. Never at-tempt to straighten and re-use a damagedMade. Use onlythe specified replacement blade.Wear protective gloves whenhandling or performing maintenance onthe blade to help avoid injury._k WARNING " !To prevent the blade from cracking or flying[apart after sheening, do not file w_thin 1/4[inch of the rad_ shown in Figure 30. ]OFileor Grind EachEdge in the SameManner to Maintaina Balanced Blade.1/4 Inch- _.._I _ Maintai_RadiusMaintainRadi_Sharpen This _'_pwArea OnlyFigure 81MAYNTENANCE ACCESSORIESFLEX SHAFT LUBE .....................................................................952-030139SPARK PLUG ...........................................................................71-85854