Cub Cadet CC 30 H Operation Manual - Page 20

1. Remove the mulch plug, deck chute or bagging chute, if equipped, exposing the deck chute opening. 2. Using a block of wood or 2 x 4, insert it into the deck opening and rotate the blade around until it wedges the wood between the deck opening and the cutting blade, as shown in Figure 4-17. Figure 4-17 3. Remove the hex flange nut that secures the blade to the spindle assembly. See the Inset of Figure 4-17. Note: The deck spindle has a normal thread. To loosen, rotate the flange lock nut counter-clockwise. 4. 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°- to 30° angle. Always grind each cutting blade edge equally to maintain proper blade balance. See Figure 4-18. WARNING A poorly balanced blade will cause excessive vibration, may damage the tractor and/or result in personal injury. 5. 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. CAUTION Use a torque wrench to tighten the blade spindle hex flange nut to between 70 ft-lbs and 90 ft-lbs. Changing the Transmission Drive Belt Note: Several components must be removed and special tools (i.e. air/impact wrench) in order to change the tractor's drive belt. See an authorized service dealer to have your drive belt replaced or phone Customer Support to find a dealer near you. See page 2 for details. Troubleshooting Excessive Vibration 1. Cutting blade loose. • Tighten cutting blade and deck spindle. 2. Cutting blade damaged, unbalanced or bent. • Replace the cutting blade. Uneven Cut 1. Deck not properly leveled. • Perform side-to-side deck adjustment. 2. Cutting blade dull or damaged. • Sharpen or replace cutting blade. 3. Uneven tire pressure. • Check and correct tire pressure in all four tires. Engine fails to start 1. PTO/Blade engaged. • Place blade engage lever in disengaged (OFF) position. 2. Blown fuse. • Replace fuse(s) 3. Parking brake not engaged. • Engage parking brake. 4. Deck chute or mulch plug not properly installed. • Check the installation of the deck chute or mulch plug. 5. See Engine Operator's Manual. Mower will not mulch grass. 1. Engine speed too low. • Place throttle in FAST (rabbit) position. 2. Wet grass. • Do not mulch when grass is wet. 3. Excessively high grass. • Mow once at a high cutting height, then mow again at desired height or make a narrower cutting swath. 4. Dull blade. • Sharpen or replace blade. Figure 4-18 20 Section 4 - Product Care