MAINTENANCE 4GB-174.3 SHARPENING BLADES _____________________________________________________1. Place a wooden block between the blade and mowerhousing to stop the blade from moving. To removeblade, turn screw holding blade counterclockwise.2. When dressing or sharpening the blade, do notfollow the original pattern of grind as shown in (A).Grind new cutting edges at an angle as shown in(B).If the maximum total loss of the blade reaches 1/2 in.,(13 mm), do not sharpen further, replace blade.3. Make sure an equal amount of material is removedfrom both sides of blade to prevent having anunbalanced blade. An unbalanced blade will causeexcessive vibration and may damage the mower.4. Use a blade balancer to check the blade aftersharpening.5. Attach blade to mower. Install blades so cuttingedges (C) face the direction of rotation as shown inFigure 4C. Beveled cutting edge of blade must facein toward deck housing.Torque center mounting screw holding blade to 75 to90 ft. lb. (100 to 120 Nm).Figure 4BFigure 4CWARNINGThe mower blades can develop sharp edges. Usecaution whenever servicing and handling.WARNINGResharpening the blade beyond the allowable 1/2in., (13 mm) may allow blade tip break off and bethrown from the mower. Such an incident can causevery serious injury to bystanders and/or propertydamage.!!AB1/2” (13 mm)MaximumHR024Bottom view of front deckin its service positionBottom view of side decksraised to their transport position.Left Side Right SideCCCHR015