Craftsman 247.77013.0 - Manual (Page 23)

23
TROUBLESHOOTING
Problem Cause Remedy
Engine fails to start Throttle lever not in correct starting position 1.
Choke not in ON position 2.
Spark plug wire disconnected 3.
Faulty spark plug 4.
Fuel tank empty or stale fuel 5.
Cannot pull recoil cord 6.
Safety switch not depressed 7.
Safety switch wire is not connected to 8.
engine or not properly grounded
Move throttle lever to START/RUN position. 1.
Move CHOKE to ON position. 2.
Connect wire to spark plug. 3.
Clean, adjust gap, or replace. 4.
Fill tank with clean, fresh gasoline. 5.
Obstruction lodged in impeller. Disconnect spark 6.
plug wire and remove lodged object.
Safety switch must be depressed by the front tab on
7.
the bag handle when securing the bag.
Connect safety switch wire to engine connector and
8.
ground to mounting bracket.
Engine runs erratically Unit running on CHOKE 1.
Spark plug wire loose 2.
Stale fuel 3.
Water or dirt in fuel system 4.
Dirty air cleaner 5.
Low engine RPM 6.
Carburetor out of adjustment 7.
Move choke lever to OFF position. 1.
Connect and tighten spark plug wire. 2.
Fill tank with fresh gasoline. 3.
Drain fuel. Refill with fresh fuel. 4.
Clean or replace air cleaner filter. 5.
Always run engine at full throttle. 6.
Contact your Sears Parts & Repair Center. 7.
Engine overheats Engine oil level low 1.
Air flow restricted 2.
Fill engine with proper amount and type of oil. 1.
Clean grass clippings and debris from around the 2.
engine’s cooling fins and blower housing.
Engine hesitates at high RPMs Spark plug gap set too close 1. Remove spark plug and adjust gap. 1.
Engine idles poorly Fouled spark plug 1.
Dirty air cleaner 2.
Replace spark plug and adjust gap. 1.
Replace air cleaner cartridge. 2.
Excessive vibration Loose parts or damaged impeller 1. Stop engine immediately and disconnect spark plug 1.
wire. Contact your Sears Parts & Repair Center.
Unit does not discharge Discharge area clogged 1.
2. Foreign object lodged in impeller
3. Low engine RPM
4. Vacuum bag is full
1. Stop engine immediately and disconnect spark plug
wire. Clean flail screen and inside of discharge open-
ing.
2. Stop engine and disconnect spark plug wire. Remove
lodged object.
3. Always run engine at full throttle.
4. Empty bag.
Rate of discharge slows
considerably or composition of
discharged material changes Low engine RPM 1.
Chipper blade dull 2.
1. Always run engine at full throttle.
2. Replace chipper blade or contact your Sears Parts &
Repair Center.
Unit fails to propel itself or
slips when drive control is
engaged Drive control cable out of adjustment 1.
Drive belt worn or damaged 2.
Follow adjustment procedure in Service & Mainte- 1.
nance section.
Contact your Sears Parts & Repair Center.
2.
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