Cub Cadet SC 500 ez SC 500 ez Operator's Manual - Page 16

Engine Care 2. A list of key engine maintenance jobs required for good 3. performance by the mower is given below. Follow the accompanying engine manual for a detailed list and instructions. • Maintain oil level as instructed in engine manual. • Service air cleaner and carbon canister filter every 25 hours under normal conditions. Clean every few hours under extremely dusty conditions. Poor engine performance and flooding usually indicates that the air cleaner should be serviced. To service the air cleaner and carbon canister filter, refer to the engine manual. • Clean spark plug and reset the gap once a season. Spark plug replacement is recommended at the start of each mowing season. Check engine manual for correct plug type and gap specifications. • Clean engine regularly with a cloth or brush. Keep the top of the engine clean to permit proper air circulation. Remove all grass, dirt, and combustible debris from muffler area. • Engines stored between 30 and 90 days need to be treated with a gasoline stabilizer such as STA-BIL® to prevent deterioration and gum from forming in fuel system or on essential carburetor parts. Adjustments 4. Drive Adjustment The drive system consists of pulleys, a belt , and a cable linking the transmission to the drive handle. As these components wear adjustment may be needed. To adjust the drive linkage perform the following: 1. Rotate the drive cable fitting located on the left upper handle upward. See Figure 6-3. Pull the fitting away from the handle. Unhook the cable and remove the metal bushing from the plastic drive handle. See Figure 6-4. Metal Bushing Cable Figure 6-4 Replace bushing in the lower hole and reattach the cable through the bushing and lower hole in the handle. See Figure 6-5. 2 1 Figure 6-3 16 Section 6- Maintenance & Adjustments Figure 6-5 5. Reinsert the drive cable fitting into the upper handle and rotate it downward. 6. Start the mower and check the function of the drive handle. CAUTION: If the drive is engaged without pushing on the handle after this adjustment is made return the cable to its original position on the plastic drive handle.