Troy-Bilt TB30 Operation Manual - Page 30
Troubleshooting
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Troubleshooting 8 Problem Engine fails to start Cause 1. PTO/Blade engaged 2. Spark plug wire disconnected 3. Fuel tank empty, or stale fuel Engine runs erratic 4. Choke not activated 5. Faulty spark plug 6. Blown fuse 7. Engine flooded 8. Parking brake not engaged 9. Deck chute, mulch plug or chute tube not poperly installed. 1. Unit running with CHOKE activated. 2. Spark plug wires loose. 3. Blocked fuel line or stale fuel. 4. Vent in gas cap plugged. 5. Water or dirt in fuel system. Engine overheats 6. Dirty air cleaner. 1. Engine oil level low. 2. Air flow restricted. Engine hesitates at high RPM Engine Idles rough 1. Spark plug gap too close. 1. Spark plug fouled, faulty or gap too wide. 2. Dirty air cleaner. Excessive vibration Mower will not mulch grass 1. Cutting blade loose or unbalanced. 2. Damaged or bent cutting blade. 1. Engine speed too low. 2. Wet grass. 3. Excessively high grass. Uneven cut 30 4. Dull blade. 1. Deck not leveled properly. 2. Dull blade. 3. Uneven tire pressure. Remedy 1. Place blade engage lever in disengaged (OFF) position. 2. Connect wire to spark plug. 3. Fill tank with clean, fresh (less than 30 days old) gas. 4. Place the throttle control in CHOKE position. 5. Clean, adjust gap or replace plug. 6. Replace fuse(s) 7. Crank engine with throttle in FAST position. 8. Engage parking brake. 9. Check the installation of the deck chute, mulch plug or chute tube. 1. Move the throttle contol out of the CHOKE position. 2. Connect and tighten spark plug wire. 3. Clean fuel line; fill tank with clean, fresh gasoline and replace fuel filter 4. Clear vent or replace cap if damaged. 5. Drain fuel tank. Refill with clean, fresh gasoline. 6. Replace air cleaner paper element or clean foam precleaner. 1. Fill crankcase with proper amount and weight of oil. 2. Clean grass clippings and debris from around the engine's cooling fins and blower housing. 1. Remove spark plug and reset the gap. 1. Replace spark plug. Set plug gap. 2. Replace air cleaner element and/or clean pre-cleaner. 1. Tighten blade and spindle. Balance blade. 2. Replace blade. 1. Place throttle in FAST (rabbit) position. 2. Do not mulch when grass is wet. 3. Mow once at a high cutting height, then mow again at desired height or make a narrower cutting swath. 4. Sharpen or replace blade. 1. Perform side-to-side deck adjustment. 2. Sharpen or replace blade. 3. Check tire pressure in all four tires.