TROUBLESHOOTING CHART: See appropriate section in manual unless directed to Sears service center PROBLEM CAUSE CORRECTION Loss of power 1. Cutting too much grass/too fast. 1. Raise cutting height/reduce speed. 2. Adjust throttle control. 3. Clean underside of mower 2. Throttle in "CHOKE" position. 3. Build-up of grass, leaves and trash under mower. housing. 4. Clean/replace air filter. 5. Check oil level/change oil. 6. Clean and regap or change spark plug. 7. Replace fuel filter. 8. Empty fuel tank and refill tank with fresh, clean gasoline. 9. Empty fuel tank and carbure- tor, refill tank with fresh gaso line and replace fuel filter. 10. Connect and tighten spark plug wire. 11.
Clean engine air screen/fins. 12. Clean/replace muffler. 13. Check all wiring. 14. See "To Adjust Carburetor" in Service and Adjustments section. 15. Contact a Sears or other qualified service center. 4. Dirty air filter. 5. Low oil level/dirty oil. 6. Faulty spark plug. 7. Dirty fuel filter. 8. Stale or dirty fuel. 9. Water in fuel. 10. Spark plug wire loose. 11. Dirty engine air screen/fins. 12. Dirty/clogged muffler. 13. Loose or damaged wiring. 14. Carburetor out of adjustment. 15. Engine valves out of adjustment. Excessive vibration 1. Worn, bent or loose blade. 1. Replace blade. Tighten blade bolt. 2. Contact a Sears or other 2. Bent blade mandrel. qualified service center. 3.
Tighten loose part(s). Replace damaged parts. 3. Loose/damaged part(s). Engine dies when tractor is shifted into reverse , Reverse operation system (ROS) is not "ON" while mower or other attachment is engaged. 1. Turn ignition key to ROS "ON" position. See Operation section. Engine continues to run when oper- ator leaves seat with attachement , Faulty operator-safety presence control system. 1. Check wiring, switches and connections. If not contact a Sears or other with quali- fied service center. clutch engaged Poorcut-uneven , Worn, bent or loose blade. 1. Replace blade. Tighten blade bolt. 2. Level mower deck. 3. Clean underside of mower 2. 3. Mower deck not level.
Buildup of grass, leaves, and trash under mower. Bent blade mandrel. 4. housing. 4. Contact a Sears or other 5. Clogged mower deck vent holes from buildup of grass, leaves, and trash around mandrels. qualified service center. 5. Clean around mandrels to open vent holes. 29