Craftsman ZTS 7500 Operator's Manual

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CLEAN DECK &CHECK / REPLACE MOWER BLADESService Interval: 25 hours or as required.WARNINGFor your personal safety, do not handle the sharpmower blades with bare hands, Careless orimproper handling of blades may result in seriousinjury,WARNINGFor your personal safety, blade mountingcapscrews must each be installed with ahex/spline washer and spring washer, thensecurely tightened. Torque blade mountingcapscrew to 45 - 55 ft. Ibs. (61 - 75 N.m.)1. Remove mower deck (see "Mower Deck Removal" inthe OPERATION section).2. See Figure 20. Remove blade to inspect it or tosafely access the underside of the mower deck. Usea block of wood to prevent blade rotation whileloosening the capscrew by turning itcounterclockwise.3. Remove the capscrew (D, Figure 22), spring washer(C), hex washer (B), and blade.4. Clean the underside of the mower deck.5. Inspect the blades for nicks or dull edges. Use a fileto sharpen blade to a fine edge. If the blade isdamaged, it must be replaced.6. Balance the blade as shown in Figure 21. Center theblade's hole on a nail lubricated with a drop of oil. Abalanced blade will remain level. If the blade is notbalanced, continue to sharpen the heavy side until itbalances.7. Reinstall the blade with the lift wings (E, Figure 22)pointing up toward the mower deck as shown.8. Reinstall the hex washer (B, Figure 22), springwasher (C) and capscrew (D). Use a wooden block(A) to prevent blade rotation while tightening thecapscrew (D) to 45-55 ft. Ibs. (61-75 N.m). Turncapscrew clockwise to tighten.LOOSENFigure 20. Blade RemovalNailFigure 21. Balancing The BladeFigure 22. Blade InstallationA. 4x4Wood BlockB. Hex WasherC. Spring WasherD. Blade CapscrewE. Lift Wings2O