Cub Cadet SCP21E Operation Manual - Page 17
Service And Maintenance
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SERVICE AND MAINTENANCE Maintenance GENERAL RECOMMENDATIONS • Always observe safety rules when performing any maintenance. • The warranty on this lawn mower does not cover items that have been subjected to operator abuse or negligence. To receive full value from warranty, operator must maintain the lawn mower as instructed here. 1. Stop the motor and remove the push start safety key. 2. With the battery(ies) removed, turn the mower on its side. 3. Remove bolt (a) and blade bell support (b) which hold the blade and the blade adapter to the motor shaft (Figure 16). d c Blade • All adjustments should be checked at least once each season. • Periodically check all fasteners and make sure these are tight. WARNING Always stop the motor and remove the push start safety key before cleaning, lubricating or performing any repairs or maintenance on the mower. Always remove the battery to prevent accidental starting. Always allow the machine to cool before maintaining the mower. Before maintaining the battery charger, always unplug it from the power outlet. b a Figure 16 4. Remove blade (c) and adapter (d) from the shaft. (Figure 16). 5. Remove blade from the adapter for testing balance. Balance the blade on a round shaft screwdriver to check. Remove metal from the heavy side until it balances evenly. When sharpening the blade, follow the original angle of grind. Grind each cutting edge equally to keep the blade balanced. DECK CARE WARNING To prevent serious injury, do not use water to clean the mower, battery or battery charger. Do not use strong detergents. Household cleaners that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic. The underside of mower deck should be cleaned after each use as grass clippings, leaves, dirt and other debris will accumulate. This accumulation of grass clippings, etc., is undesirable as it will promote rust and corrosion. 1. Remove any buildup of grass and leaves on or around the motor (do not use water). Wipe the mower clean with a dry cloth. 2. If debris is allowed to build up on the underside of the machine, tilt the mower forward or on its side and clean with a suitable tool. WARNING An unbalanced blade will cause excessive vibration when rotating at high speeds. It may cause damage to mower or may break causing personal injury. 6. Lubricate the motor shaft and the inner surface of the blade adapter with light oil. Slide the blade adapter (d) onto the motor shaft. Place the blade on the adapter such that the side of the blade marked "Bottom" (or with part number) faces the ground when the mower is in the operating position. Make sure that the blade is aligned and seated on the blade adapter flanges. See Figure 16 inset. 7. Place blade bell support (b) on the blade (c). Align notches on the blade bell support with small holes in blade. 8. Replace hex bolt (a) and tighten hex bolt to torque: 450 in-lb (min.), 600 in lb (max.). To ensure safe operation of your mower, periodically check the blade bolt for proper torque. IMPORTANT: Do not use a pressure washer or garden hose to clean your mower. These may cause damage to electric components or the electric motor. The use of water will result in shortened life and reduce serviceability. BLADE CARE WARNING Battery Disposal For information regarding battery disposal and the RBRC® (Rechargeable Battery Recycling Corporation) Seal, refer to Disposing of Damaged or WornOut Batteries on page 7. When removing the cutting blade for sharpening or replacement, protect your hands with a pair of heavy gloves or use a heavy rag to hold the blade. Be certain to remove the battery(ies). Periodically inspect the blade adapter for cracks, especially if you strike a foreign object. Replace when necessary. Follow the steps below for blade service. 17