Craftsman 28970 Operation Manual - Page 29

TROUBLESHOOTING CHART: See appropriate section in manual unless directed to Sears service center PROBLEM CAUSE CORRECTION Engine continues to 1 run when operator leaves seat with attachment clutch engaged Faulty operator-safety control system. presence 1 Check wiring, switches and connections. If not corrected, contact a Sears or other Poor cut = uneven cutting Mower blades will not rotate 1 Worn, bent or loose blade. 2 Mower deck not level. 3 Buildup of grass, leaves, and trash under mower. 4 Bent blade mandrel. 5 Clogged mower deck vent from build-up of grass, leaves, and trash around mandrels. 1 Obstruction in clutch mechanism. 1 Replace blade. Tighten blade bolt 2 Level mower deck. 3 Clean underside of mower housing. Contact a Sears or other qualified service center. Clean around mandrels to open vent holes. 1 Remove obstruction. 2 Worn/damaged mower drive belt. 2 Replace mower drive belt. Poor grass discharge 3 Frozen idler pulley. 4 Frozen blade mandrel. 1 Engine speed too slow. 2 Travel speed too fast. 3 Replace idler pulley. 4 Contact a Sears or other qualified service center. 1 Place throttle control in "FAST" position. 2 Shift to slower speed. 3 Wet grass. 4 Mower deck not level. 3 Allow grass to dry before mowing 4 Level mower deck. 5 Low/uneven tire air pressure. 5 Check tires for proper PSI. 6 Worn, bent or loose blade. 6 Replace/sharpen blade. Tighten blade bolt. 7 Buildup of grass, leaves and trash under mower. 8 Mower drive belt worn. 7 Clean underside of mower housing. 8 Replace mower drive belt. 9 Blades improperly installed. 9 Reinstall blades sharp edge down 10 Improper blades used. 10 Replace with blades listed in this manual. 11 Clogged mower deck vent holes 11 Clean around mandrels to from buildup of grass, leaves, and trash around mandrels. open vent holes. 29