Craftsman 247.77011 Operator's Manual

Contents

15NOTE: For repairs beyond the minor adjustments listed above, please contact your local Sears Service Center.Problem Possible Cause(s) Corrective ActionEngine fails to start 1. Fuel tank empty or stale fuel.2. Spark plug wire disconnected.3. Cannot pull recoil cord.4. Choke not in ON position.5. Blocked fuel line.6. Engine not primed properly.7. Faulty spark plug.8. Safety switch not depressed.9. Safety switch wire is notconnected to engine or notproperly grounded.1. Fill tank with clean, fresh gasoline. Fuel will notlast over thirty days unless a fuel stabilizer isadded.2. Connect wire to spark plug.3. Obstruction lodged in impeller. Disconnectspark plug wire and remove lodged object.4. Move CHOKE to ON position.5. Clean fuel line.6. Prime engine.7. Clean, adjust gap, or replace.8. Safety switch must be depressed by the fronttab on the bag handle when securing the bag.9. Connect safety switch wire to engine connectorand ground to mounting bracket.Loss of power;operation erratic1. Spark plug wire loose.2. Unit running on CHOKE.3. Blocked fuel line or stale fuel.4. Water or dirt in fuel system.5. Carburetor out of adjustment.6. Low engine RPM.1. Connect and tighten spark plug wire.2. Move choke lever to OFF position.3. Clean fuel line; fill tank with clean freshgasoline. Fuel will not last over thirty daysunless a fuel stabilizer is used.4. Disconnect fuel line at carburetor to drain fueltank. Refill with fresh fuel.5. Contact your Sears Service Center.6. Always run engine at full throttle.Too much vibration 1. Loose parts or damagedimpeller.1. Stop engine immediately and disconnect sparkplug wire. Have unit serviced by a SearsService Center.Engine overheats 1. Carburetor not adjusted2. Engine oil level low3. Dirty air cleaner.1. Contact your Sears Service Center.2. Fill crankcase with proper selection of oil.3. Clean or replace air cleaner.Occasional skip(hesitates) at highspeed.1. Spark plug gap too close. 1. Adjust gap to.030”.Unit does notdischarge1. Discharge chute clogged.2. Foreign object lodged inimpeller.3. Low engine RPM.4. Vacuum bag is full.1. Stop engine immediately and disconnect sparkplug wire. Clean flail screen and inside ofdischarge opening. See Maintenance section ofthis manual.2. Stop engine immediately and disconnect sparkplug wire. Remove lodged object.3. Always run engine at full throttle.4. Empty bag.Rate of dischargeslows considerably orcomposition ofdischarged materialchanges1. Low engine RPM.2. Chipper blade dull.1. Always run engine at full throttle.2. Replace chipper blade or see your SearsService Center.TROUBLESHOOTING