Yard-Man 12A-559K401 Operator's Manual

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Contents

Yard-Man 12A-559K401 Operator's Manual Manual pdf 15 page image

15• Change oil if it has not been changed in the lastthree months. For instructions on how to change oil,refer to the engine manual.• Clean engine and remove any grass clippings.Other• Do not store gasoline from one season to another.• Replace your gasoline can if it starts to rust. Rustand/or dirt in the gasoline will cause problems.Store unit in a clean, dry area. Do not store next tocorrosive materials, such as fertilizer.NOTE: If storing in an unventilated or metal storageshed, be certain to rustproof the equipment by coatingwith a light oil or silicone.SECTION 9: TROUBLE-SHOOTINGNOTE: For repairs beyond the minor adjustments listed above, contact your local authorized service dealer.Problem Possible Cause Corrective ActionEngine fails to start 1. Blade control handle disengaged2. Spark plug wire disconnected3. Fuel tank empty, or stale fuel4. Blocked fuel line5. Faulty spark plug6. Engine flooded1. Engage blade control handle2. Connect wire to spark plug3. Fill up tank with fresh gasoline4. Clean fuel line5. Clean, adjust gap, or replace6. Wait a few minutes to restart, Do not prime.Engine runs erratic 1. Spark plug wire loose2. Blocked fuel line or stale fuel3. Vent in gas cap plugged4. Water or dirt in fuel system5. Dirty air cleaner1. Connect and tighten spark plug wire.2. Clean fuel line, fill tank with fresh gasoline.3. Clear vent.4. Drain fuel tank. Refill with fresh fuel.5. Clean air cleaner. Refer to engine manual.Engine overheats 1. Engine oil level low2. Air flow restricted1. Fill crankcase with proper oil.2. Clean lawn mower engine.Occasional skip(hesitates) at highspeed1. Spark plug gap too close 1. Adjust gap to.030 inches.Idles poorly 1. Spark plug faulty, or gap too wide2. Dirty air cleaner1. Reset gap to.030 inches or replace spark plug.2. Clean air cleaner.Excessive vibration 1. Blade loose or unbalanced2. Bent cutting blade3. Bent engine crankshaft1. Tighten blade and adapter, balance blade.2. Replace blade.3. Contact the nearest service centerMower will notmulch grass1. Wet grass2. Excessively high grass3.4. Dull blade1. Wait until grass is dry to cut.2. Mow once at a high cutting height, then mowagain at desired height.3. Sharpen or replace blade.Uneven cut 1. Wheels not at same height2. Dull blade1. Reposition all wheels at same height.2. Sharpen or replace blade.