Cub Cadet TANK SZ 60 TANK SZ 48 Operator's Manual - Page 36
Sharpening the Blades
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4. Use a 1-1⁄8" socket wrench on the pulley side of the spindle bolt. See Fig. 7-7. Hex Screw Sharpening the Blades 1. Set the parking brake. 2. Clean any debris from the blades. Keep blades sharp and free of build up at all times. 3. To properly sharpen the cutting blades, remove equal amounts of metal from both ends of the blades along the cutting edges, parallel to the trailing edge, at a 25°-30° angle. Always grind each cutting blade edge equally to maintain proper blade balance. See Fig. 7-8. Blade Flange Lock Nut Figure 7-7 5. Remove the hex nut at the blade using a 1-1⁄8" wrench and remove the blade. 6. To replace the blade reverse the above process and tighten nut to 100-120 lb ft. NOTE: Add a small amount of multi-purpose grease to the bolt threads to avoid corrosion and galvanic action. WARNING! Never mow with dull blades. Blades that are bent should be replaced. The cutting blades are sharp and can cause severe injury. Wrap the cutting surface of the blade with a rag to avoid injury. Figure 7-8 WARNING! If a blade is bent or otherwise damaged, replace the blade with a new one. Use only original equipment blades. WARNING! A poorly balanced blade will cause excessive vibration, may damage the machine and/ or result in personal injury. 4. Test the blade's balance using a blade balancer. Grind metal from the heavy side until it balances evenly. NOTE: When replacing the blade, be sure to install the blade with the side of the blade marked ''Bottom'' (or with a part number stamped in it) facing the ground when the mower is in the operating position. WARNING! Use a torque wrench to tighten the blade spindle hex flange nut to between 100 lbs-ft and 120 lbs-ft. 36 Section 7- Service