Operator’s Manual
®
4-Cycle Gasoline
LAWN EDGER
Model No. 316.772370
CAUTION: Before using this product, read this manual and follow all safety rules and operating instructions.
•SAFETY
•ASSEMBLY
•OPERATION
•MAINTENANCE
•PARTS LIST
•ESPAÑOL, P. E1
Sears, Roebuck and Co., Hoffman Estates, IL 60179, U.S.A.
Visit our website: www.sears.com/craftsman
769-03850A
RULES FOR SAFE OPERATION
TABLE OF CONTENTS
Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Maintenance and Repair Instructions . . . . . . . . . . . . . . . . . . . . . . .9 Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E17
SPARK ARRESTOR NOTE
NOTE: For users on U.S. Forest Land and in the states of California, Maine, Oregon and Washington. All U.S. Forest Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and Washington require, by law that certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark arrestor, maintained in effective working order, or the engine be constructed, equipped and maintained for the prevention of fire. Check with your state or local authorities for regulations pertaining to these requirements. Failure to follow these requirements could subject you to liability or a fine. This unit is factory equipped with a spark arrestor. If it requires replacement, ask your LOCAL SERVICE DEALER to install the
Accessory Part #753-05297 Spark Arrestor Kit.
CALIFORNIA PROPOSITION 65 WARNING
WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention measures.
SYMBOL MEANING
SAFETY ALERT: Indicates danger, warning or caution. Attention is required in order to avoid serious personal injury. May be used in conjunction with other symbols or pictographs.
DANGER: Failure to obey a safety warning will result in serious injury to yourself or to others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.
WARNING: Failure to obey a safety warning can result in injury to yourself and others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.
CAUTION: Failure to obey a safety warning may result in property damage or personal injury to yourself or to others. Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.
NOTE: Advises you of information or instructions vital to the operation or maintenance of the equipment.
Read the Operator’s Manual and follow all warnings and safety instructions. Failure to do so can result in serious injury to the operator and/or bystanders.
FOR QUESTIONS, CALL 1–800–659-5917
• IMPORTANT SAFETY INSTRUCTIONS •
READ ALL INSTRUCTIONS BEFORE OPERATING |
SPECIAL SAFETY WARNINGS FOR LAWN EDGERS |
WARNING: When using the unit, you must follow the safety rules. Please read these instructions before operating the unit in order to ensure the safety of the operator and any bystanders. Please keep these instructions for later use.
•Carefully read and understand the operator's manual of the unit that powers this attachment.
•Read this operating instruction manual carefully. Be thoroughly familiar with the controls and the proper use of the equipment. Know how to stop the unit and disengage the controls quickly.
•Do not operate this unit when tired, ill, or under the influence of alcohol, drugs, or medication.
•Never allow children to operate the equipment. Never allow adults unfamiliar with the instructions to use the unit. Never allow adults to operate the equipment without proper instruction.
•All guards and safety attachments must be installed properly before operating the unit.
•Inspect the unit before use. Ensure the blade is installed correctly and secure.
•Clear the area to be edged before each use. Remove all objects such as rocks, broken glass, nails, wire, or string which can be thrown or become entangled in the edging attachment.
WARNING: Gasoline is highly flammable, and its vapors can explode if ignited. Take the following precautions:
•Store fuel only in containers specifically designed and approved for the storage of such materials.
•Always stop the engine and allow it to cool before filling the fuel tank. Never remove the cap of the fuel tank, or add fuel, when the engine is hot. Never operate the unit without the fuel cap securely in place. Loosen the fuel tank cap slowly to relieve any pressure in the tank.
•Add fuel in a clean, well-ventilated area outdoors where there are no sparks or flames. Slowly remove the fuel cap only after stopping engine. Do not smoke while fueling. Wipe up any spilled fuel from the unit immediately.
•Avoid creating a source of ignition for spilled fuel. Do not start the engine until fuel vapors dissipate.
•Move the unit at least 30 feet (9.1 m) from the fueling source and site before starting the engine. Do not smoke. Keep sparks and open flames away from the area while adding fuel or operating the unit.
•Never start or run the unit inside a closed room or building. Breathing exhaust fumes can kill. Operate this unit only in a well ventilated area outdoors.
2
RULES FOR SAFE OPERATION
WHILE OPERATING
•Keep bystanders, especially children and pets, at least 50 ft (15 m) away.
•Wear safety glasses or goggles that are marked as meeting ANSI Z87.1–1989 standards, and ear/hearing protection when operating this unit. Wear a face or dust mask if the operation is dusty.
•Wear heavy, long pants, boots, gloves and a long sleeve shirt. Do not wear loose clothing, jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level.
•Use the unit only in daylight or good artificial light.
•Use the right tool. Only use this tool for the purpose intended.
•Do not force unit. It will do the job better and with less likelihood of injury at a rate for which it was designed.
•Use extreme caution when reversing or pulling the unit towards you.
•Do not overreach, take extra care when working on steep slopes or inclines. Always keep proper footing and balance.
•Always hold the unit with both hands when operating. Keep a firm grip on the handle.
•Keep hands, face, and feet at a distance from all moving parts. Do not touch or try to stop the blade when it is rotating. Do not operate without guards in place.
•Do not operate the engine faster than the speed needed to do the job. Do not run the engine at high speed when not in use.
•Always stop the engine/motor when operation is delayed or when walking from one location to another.
•Stop the engine/motor for maintenance, repair, to install or remove the blade. The unit must be stopped and the blade no longer turning to avoid injury.
•The blade may become very sharp from use. Always wear heavy gloves when handling, removing, installing or cleaning the blade.
•If you strike or become entangled with a foreign object, stop the engine/motor immediately and check for damage. Have any damage repaired before attempting further operations. Do not operate unit with a bent, cracked or dull blade. Discard blades that are bent, warped, cracked or broken.
before continuing. Repair or replace affected parts as necessary.
•Stop and switch the unit to off for maintenance or repair.
•Keep unit clean of vegetation and other materials. They may become lodged between the blade and guard.
•A coasting blade can cause injury while it continues to spin after the unit is stopped. Maintain proper control of the unit until the blade has completely stopped rotating.
•Use only genuine factory replacement parts and accessories for this unit. These are available from your authorized service dealer. Use of any unauthorized parts or accessories could lead to serious injury to the user or damage to the unit, and void your warranty.
MAINTENANCE AND STORAGE
•Allow the unit to cool before storing or transporting. Be sure to secure the unit while transporting.
•Store the unit in a locked up and dry or high and dry place to prevent unauthorized use or damage, out of the reach of children.
•Clean the blade with a hose and water. Wipe the blade with light machine oil to prevent rust.
•Never douse or squirt the unit with water or any other liquid. Keep handles dry, clean and free from debris. Clean after each use.
•Keep these instructions. Refer to them often and use them to instruct other users. If you loan someone this unit, also loan them these instructions.
•Only qualified personnel should perform any repairs or maintenance procedures that are not described in this manual.
•Check shear bolts, engine mounting bolts and other bolts at frequent intervals for proper tightness to be sure the equipment is in safe working condition.
•Inside a building store the machine away from ignition sources. Allow the engine to cool before storing in any enclosure.
•Always refer to the Operator’s Manual instructions for important details if the lawn edger is to be stored for an extended period.
•Do not attempt to repair the machine unless you have the proper tools, and instructions for disassembly and repair of the machine.
•Stop the unit IMMEDIATELY if you feel excessive vibration. Vibration is a sign of trouble. Inspect thoroughly for loose nuts, bolts or damage
SAVE THESE INSTRUCTIONS
3
RULES FOR SAFE OPERATION
• SAFETY AND INTERNATIONAL SYMBOLS •
This operator's manual describes safety and international symbols and pictographs that may appear on this product. Read the operator's manual for complete safety, assembly, operating and maintenance and repair information.
SYMBOL MEANING
•SAFETY ALERT SYMBOL
Indicates danger, warning or caution. May be used in conjunction with other symbols or pictographs.
•READ OPERATOR'S MANUAL
WARNING: Read the operator’s manual(s) and follow all warnings and safety instructions. Failure to do so can result in serious injury to the operator and/or bystanders.
• WEAR EYE AND HEARING PROTECTION
WARNING: Thrown objects and loud noise can cause severe eye injury and hearing loss. Wear eye protection meeting ANSI Z87.1–1989 standards and ear protection when operating this unit. Use a full face shield when needed.
•UNLEADED FUEL
Always use clean, fresh unleaded fuel.
•OIL
Refer to operator’s manual for the proper type of oil.
• KEEP BYSTANDERS AWAY
WARNING: Keep all bystanders, especially children and pets, at least 50 feet (15 m) from the operating area.
SYMBOL MEANING
•ON/OFF STOP CONTROL
ON / START / RUN
•ON/OFF STOP CONTROL
OFF or STOP
•HOT SURFACE
WARNING: Do not touch a hot muffler, gear housing or cylinder. You may get burned. These parts get extremely hot from operation. They remain hot for a short time after the unit is turned off.
• THROWN OBJECTS AND ROTATING CUTTER CAN CAUSE SEVERE INJURY
WARNING: Do not operate without the cutting attachment shield in place. Keep away from the rotating cutting attachment.
• GARDEN EDGERS – ROTATING BLADE CAN CAUSE SEVERE INJURY
WARNING: Stop the engine and allow the blade to stop before removing the blade, or before cleaning or performing any maintenance. Keep hands and feet away from rotating blade.
WARRANTY STATEMENT
CRAFTSMAN FULL WARRANTY
If this Craftsman product fails due to a defect in material or workmanship within two years from the date of purchase, return it to any Sears store, Parts and Repair Service Center, or other Craftsman outlet in the United States for free repair (or replacement if repair proves impossible).
This warranty applies for only 90 days if this product is ever used for commercial or rental purposes.
This warranty covers ONLY defects in materal and workmanship. Sears will NOT pay for:
•Expendable items that can wear out from normal use within the warranty period, such as cutting line, filters or spark plugs.
•Repairs necessary because of accident or failure to operate or maintain the product according to all supplied instructions.
•Preventive maintenance, or repairs necessary due to improper fuel mixture, contaminated or stale fuel.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Repair Protection Agreements
Congratulations on making a smart purchase. Your new Craftsman® product is designed and manufactured for years of dependable operation. But like all products, it may require repair from time to time. That’s when having a Repair Protection Agreement can save you money and aggravation.
Here’s what the Repair Protection Agreement* includes:
Expert service by our 10,000 professional repair specialists
Unlimited service and no charge for parts and labor on all covered repairs
Product replacement up to $1500 if your covered product can’t be fixed
Discount of 10% from regular price of service and related installed parts not covered by the agreement; also, 10% off regular price of preventive maintenance check
Fast help by phone – we call it Rapid Resolution – phone support from a Sears representative. Think of us as a “talking owner’s manual.” Once you purchase the Repair Protection Agreement, a simple phone call is all that it takes for you to schedule service. You can call anytime day or night, or schedule a service appointment online.
The Repair Protection Agreement is a risk-free purchase. If you cancel for any reason during the product warranty period, we will provide a full refund. Or, a prorated refund any time after the product warranty period expires. Purchase your Repair Protection Agreement today!
Some limitations and exclusions apply. For prices and additional information in the U.S.A. call 1-800-827-6655. *Coverage in Canada varies on some items. For full details call Sears Canada at 1-800-361-6665.
Sears Installation Service
For Sears professional installation of home appliances, garage door openers, water heaters, and other major home items, in the U.S.A. or Canada call 1-800-4-MY-HOME®.
4
KNOW YOUR UNIT
APPLICATIONS
• Edging along paths, driveways, rockeries, etc.
Muffler
Handle
Bail Lock
Bail
Throttle
Bail Lock |
Oil Plug |
Lever |
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Gas Tank |
On/Off Switch
Starter Rope Grip
Straight Metal Shaft
Spark Plug
Zip Ties
Air Filter Cover
Wheel |
Depth Adjustment Lever |
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Wheel |
Edger Blade 
Blade Shield
5
ASSEMBLY INSTRUCTIONS
HANDLE ASSEMBLY
1.Remove the nuts and bolts from the middle handle only, but not the eyehook.
NOTE: DO NOT remove the bolt and nut in the upper handle.
2.Place the end of the middle handle over the lower handle and align the holes (Fig. 1). Making sure the “TO START” label is facing up.
Middle
Handle
10.Firmly push the switch/ throttle assembly onto the upper handle, making sure that the post slightly protrudes through the hole on the opposite side.
11.Remove the nut and bolt from the throttle control (Fig. 4).
Bolt
Nut
Throttle
Fig. 4
Lock-Nuts |
Bolts |
Lower
Handle
Fig. 1
3.Insert two of the bolts previously removed in step 1 into these holes and thread the lock-nuts onto them until hand tight.
4.Using a 3/8” wrench to hold the bolts, tighten the lock-nuts with a 7/16” wrench until firm. DO NOT OVERTIGHTEN.
5.Place the end of the upper handle onto the end of the middle handle making sure to align the holes. (Fig. 2)
Upper
Handle
Lock-Nuts Bolts
Middle
Handle
Fig. 2
6.Insert two of the bolts previously removed in step 1 into these holes and thread the lock-nuts onto them until hand tight.
7.Repeat step 4 for tightening of this bolt.
8.Extend the switch/ throttle assembly and wires toward the top of the handle.
9.Align the switch/ throttle control assembly post with the hole that can be found on the side of the upper handle, (Fig. 3).
Upper Handle
Post
Switch/
Throttle
Assembly
Fig. 3
12.Align the throttle control with the hole on the right side of the handle.
13.Insert the bolt thru the hole and thread the lock-nut onto it until hand tight. (Fig. 4).
14.Using a 3/8” wrench to hold the bolt, tighten the lock-nut with a 7/16” wrench until firm. DO NOT OVERTIGHTEN.
15.Cut the Zip tie holding the bail to the handle (Fig. 5).
Zip Tie
Z-Hook
Bail 
Fig. 5
16.Insert the Z-Hook into the hole on the right side of the bail to secure the clutch cable to the bail (Fig. 5).
NOTE: Make sure that the bail wire is on top of the upper handle and not installed under it.
17. Pull out the starter rope and run it thru the eye hook (Fig. 6).
Starter Rope Handle
Eye Hook
Starter
Rope
Lock-Nut 
Fig. 6
WARNING: DO NOT run any control wires though the eye hook. As this may prevent certain safety features from working properly.
18.Tighten the nut onto the eye hook using a 7/16” wrench to tighten. DO NOT OVERTIGHTEN.
19.Using the zip ties found in the hardware bag, secure the handle cables to the lower and middle handle between the eye hook and the motor housing (see page 5).
6
OIL AND FUEL INFORMATION
WARNING: OVERFILLING OIL CRANKCASE MAY CAUSE SERIOUS PERSONAL INJURY. Check and maintain the proper oil level in the crank case; it is important and cannot be overemphasized. Check the oil before each use and change it as needed. See Changing the Oil.
RECOMMENDED OIL TYPE
Using the proper type and weight of oil in the crankcase is extremely important. Check the oil before each use and change the oil regularly. Failure to use the correct oil, or using dirty oil, can cause premature engine wear and failure. Use a high-quality SAE 30 weight oil of API (American Petroleum Institute) service class SF, SG, SH.
ADDING OIL TO CRANKCASE: INITIAL USE
NOTE: This unit is shipped without oil. In order to avoid damage to the unit, put oil in the crankcase before you attempt to start the unit.
Your unit is supplied with one 3.04 fluid oz. (90 ml.) bottle of SAE 30 SF, SG, SH oil (Fig. 7).
NOTE: Save the empty oil bottle. It can be used to measure the correct amount during future oil changes. See Changing the Oil.
1.Unscrew the top of the bottle of oil and remove the
paper seal covering the |
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opening. Replace the top. |
Funnel |
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Next, cut the tip off the |
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Spout |
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funnel spout (Fig. 7). |
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2. Tip unit so that the back of |
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the engine is facing up in a |
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vertical position. |
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3. Remove the oil fill plug |
Fig. 7 |
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from the crankcase (Fig. 8). |
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Oil Fill Plug |
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O-Ring
Oil Fill Hole
Definition of Blended Fuels
Today's fuels are often a blend of gasoline and oxygenates such as ethanol, methanol or MTBE (ether). Alcohol-blended fuel absorbs water. As little as 1% water in the fuel can form acids when stored. Use fresh fuel (less than 60 days old), when using alcohol-blended fuel.
Using Blended Fuels
If you choose to use a blended fuel, or its use is unavoidable, follow recommended precautions:
•Always use fresh unleaded gasoline
•Use a gas stabilizer fuel additive
•Drain tank and run the engine dry before storing unit
Using Fuel Additives
The use of a gas stabilizer will inhibit corrosion and minimize the formation of gum deposits. Using a fuel additive can keep fuel from forming harmful deposits in the carburetor for up to six (6) months. Add 0.8 oz. (23 ml.) of fuel additive per gallon of fuel according to the instructions on the fuel additive container. NEVER add fuel additives directly to the unit's gas tank.
FUELING THE UNIT
WARNING: Add gasoline in a clean, well ventilated outdoor area. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for spilt gasoline. Do not start the engine until gasoline vapors dissipate.
WARNING: Gasoline is extremely flammable. Ignited vapors may explode. Always stop the engine and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open flames at a distance from the area.
1.Remove the gas cap.
WARNING: Remove gas cap slowly to avoid injury from fuel spray. Never operate the unit without the gas cap securely in place.
2.Place the gas container’s spout into the fill hole on the fuel tank (Fig. 10) and fill the tank.
Gas Can Spout
Unleaded 
Gas
Fig. 8
4.Pour the entire bottle of oil
into the oil fill hole (Fig. 9). NOTE: Never add oil to the
gas or gas tank.
5. Wipe up any oil that may have spilled and reinstall the oil fill plug.
Check oil before each use and change as needed. Refer to
Checking the Oil Level.
RECOMMENDED FUEL TYPE
Old gasoline is the primary reason for improper unit performance. Be sure to use
fresh, clean, unleaded gasoline.
Dispose of the old gasoline in accordance to Federal, State and Local regulations
NOTE: This is a four cycle engine. In order to avoid damage to the unit, do not mix oil with the gasoline.
Gas Cap
Gas Tank
Fig. 10
NOTE: Fill or add gas to the tank only when the edger is in the horizontal position.
NOTE: Do not overfill the tank.
3.Wipe up any gasoline that may have spilled.
4.Reinstall the gas cap.
5.Move the unit at least 30 ft. (9.1 m) from the fueling source and site before starting the engine.
7
STARTING/STOPPING INSTRUCTIONS
WARNING: Operate this unit only in a wellventilated outdoor area. Carbon monoxide exhaust fumes can be lethal in a confined area.
WARNING: Avoid accidental starting. Make sure you are in the starting position when pulling the starter rope (Fig. 14). To avoid serious injury, the operator and unit must be in a stable position while starting.
STARTING INSTRUCTIONS
1.Check the oil level in the crankcase. Refer to Checking the Oil Level.
2.Fill the fuel tank with fresh, clean unleaded gasoline. Refer to Fueling the Unit.
NOTE: There is no need to turn the unit on. The On/Off Stop Control is in the ON ( I ) position at all times (Fig. 11).
3. Fully press and release the primer bulb 10 times, slowly. Some amount of fuel should be visible in the primer bulb and fuel lines (Fig. 12). If you can’t see fuel in the bulb, press and release the bulb as many times as it takes before you can see fuel in it.
IF UNIT IS BELOW 40°F... move the Cold Weather Start Lever to the closed position (Fig. 13) and continue to step 4. DO NOT move this lever to the closed position if the unit’s temperature is above 40°F.
4.Stand in the starting position (Fig. 14) and make sure the throttle control (Fig. 15) is in the SLOW ( 
) position.
5.Pull the starter rope out a short distance until you feel some resistance (this is usually around 2-4 inches). Then pull the starter rope out with a controlled and steady motion. Repeat this 5 times. The engine should start.
NOTE: Do not engage the bail while pulling the starter rope (Fig. 14) or the unit will not start.
6.If the engine starts, allow the engine to warm up for 15 to 30 seconds then move the throttle control to the FAST (
) position.
IF ENGINE STARTS AND WEATHER IS COLD... (below 40°F), move the Cold Weather Start Lever to the open position (Fig. 13) and let the engine warm up for 30 to 60 seconds.
IF... the engine does NOT start, go back to step 3.
IF... the engine stops while the throttle control is in the FAST ( 
) position, go back to step 4.
WARM UNIT RESTART... Once the engine is warm, move throttle control lever to the SLOW (
) position and pull the starter rope to restart. Do not squeeze the bail while pulling the starter rope.
NOTE: The unit uses the Incredi-Pull™ starting system with MAX FIRE IGNITION™ , which significantly reduces the effort required to start the engine. You must pull the starter rope out far enough to hear the engine attempt to start. There is no need to pull the rope briskly-- there is no harsh resistance when pulling. Be aware that this starting method is vastly different from (and much easier than) what you may be used to.
On/Off
Switch
Fig. 11
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Cold Weather |
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Primer |
Start Lever |
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Bulb |
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Open |
Closed |
Fig. 12 |
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Fig. 13 |
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Edger |
Incredi-Pull™
Starter Rope
Bail
STOPPING INSTRUCTIONS
1.Release your hand from the bail and move throttle control lever to the SLOW ( 
) position. Allow the engine to cool down by idling.
WARNING: Do not force the throttle control handle back past the Turtle on the throttle label. This could damage the unit.
2.Press and hold On/Off Stop Control in the OFF (O) position until engine comes to a complete stop (Fig. 11).
Fig. 14
Fast |
Throttle Control |
Throttle 
Label
Slow
Fig. 15
8
OPERATING INSTRUCTIONS
HOLDING THE UNIT
WARNING: Always wear eye, hearing, foot and body protection to reduce the risk of injury when operating this unit.
Before operating the unit, stand in the |
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operating position (Fig. 16). Check for the |
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following: |
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• The operator is wearing eye protection |
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and proper clothing. |
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• Both hands are holding the handle bar |
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firmly. |
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• The edger wheel adjusted for proper |
Lift |
cut depth as shown in Figure 17 and |
Bail |
edger positioned as shown in Fig. 16. |
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ADJUSTING EDGER CUTTING DEPTH
1. Grasp the depth adjustment lever located beside the front wheel (Fig. 17).
2. To raise the cutting blade, move the lever toward the front of the wheel bracket (Fig. 17).
3. To lower the cutting blade, move the |
Fig. 16 |
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lever toward the rear of the wheel |
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bracket. |
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OPERATING THE UNIT
Once the unit has started: 1. Tilt the unit back until
the blade is not in contact with the ground.
2.Lift the bail (Fig. 16) and hold it against the unit’s handle to
engage the blade and 
keep it rotating.
3.Slowly lower the unit until the front wheel is in contact with the ground.
Wheel
Bracket
Fig. 17
Thumb
Wheel
Depth
Adjustment
Lever
NOTE: Make sure you have a firm grip on the unit. The spinning blade will contact the ground before the wheel does and will create continuous forward thrust.
4.Walk slowly behind the unit while maintaining a firm grip on the unit.
TIPS FOR BEST EDGING RESULTS
•Do not force the edger. Edge the first time at a lesser depth,(No more than 1/2” depth cut per pass), then do the area again with a deeper setting.
•Walk the edger at a slow, even pace.
•Check the blade condition. As it wears it becomes smaller, thus reducing the cutting depth performance. Replace with a new blade when the blade has worn to the blade’s wear limit holes (Fig. 18).
Blade Edges
Wear Limit
Holes
Fig. 18
ADJUST BELT TENSION
If blade fails to turn when the bail is pulled, then:
1.Locate small thumb wheel on top of the belt housing (Fig. 17).
2.Turn the wheel clockwise 1 revolution to increase the tension on the belt.
3.Try pulling the bail and see if the blade turns. If not, repeat step 2 until the blade turns.
MAINTENANCE AND REPAIR INSTRUCTIONS
• MAINTENANCE SCHEDULE •
WARNING: To prevent serious injury, never perform maintenance or repairs with unit running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start.
Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to a Sears or other qualified service dealer.
NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by a Sears or other qualified service dealer.
In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be required. If you feel your engine is in need of this inspection, refer service to a Sears or other qualified service dealer for repair. DO NOT attempt to perform this process yourself as engine damage may result from contaminants involved in the cleaning process for the port.
FREQUENCY |
MAINTENANCE REQUIRED |
SEE |
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Before using |
Fill fuel tank with fresh fuel |
p. 7 |
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Check Oil |
p .10 |
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Every 10 hrs |
Clean and re-oil air filter |
p. 10 |
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After 1st 10 hrs |
Change Oil |
p. 10 |
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After 25 hrs & Every 25 hrs |
Change Oil |
p. 10 |
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Every 50 hrs |
Clean Spark Arrestor |
p. 12 |
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Every 10 hrs |
Check rocker arm to valve clearance and adjust |
p. 11 |
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Every 25 hrs |
Check rocker arm to valve clearance and adjust |
p. 11 |
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Every 25 hrs |
Check spark plug condition and gap |
p. 12 |
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9
MAINTENANCE AND REPAIR INSTRUCTIONS
BLADE REPLACEMENT
WARNING: To avoid serious personal injury, always wear gloves while handling, removing or installing the blade.
1.Place a 5/16” Allen wrench in the spindle hole (Fig. 19).
2.While holding the Allen wrench in place, loosen the nut with a 15/16” wrench by turning it counterclockwise (Fig. 19).
3.Remove the nut and blade. Keep the nut for new blade installation.
4.Install the new blade and nut (Fig. 20).
5.While holding the Allen wrench in the spindle hole, tighten the nut by turning the wrench clockwise until tight (Fig. 21).
Spindle Hole
Loosen
Fig. 19
Edger Blade |
Nut |
Tighten
Fig. 20 |
Fig. 21 |
NOTE: Make sure that the blade stays flat and centered against the output shaft throughout installation.
WARNING: Verify the blade is flat against the output shaft after the nut is tightened. If the blade is off-center, the unit will be damaged by vibration, and the blade may fly off, which can cause serious personal injury.
REPLACEMENT PARTS
Blade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753-05562 Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753-05549 Use only Craftsman replacement parts.
CHECKING THE OIL LEVEL
The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized. Check oil before each use:
1.Stop the engine and allow oil to drain into the crankcase.
2.Place the unit on a level surface to get an accurate oil level
reading (Fig. 22).
Max Oil Fill Line
Fig. 22
3.Keep dirt, grass clippings and other debris out of the engine. Clean the area around the oil fill plug before removing it.
4.Remove the oil fill plug.
5.Look into the oil fill hole, use a flashlight if needed. The oil should be just touching the innermost thread (Fig. 22).
6.If the oil level is not touching the innermost thread on the oil fill hole, add a small amount of oil to the oil fill hole and recheck (Fig. 23). Repeat this procedure until the oil level reaches the innermost thread on the oil fill hole.
Fill Level
Fig. 23
NOTE: Do not overfill the unit.
NOTE: Make sure the O-ring is in place on the oil fill plug when checking and changing the oil (Fig. 8).
CHANGING THE OIL
CAUTION: Wear gloves to prevent injury when handling the unit.
For a new engine, change the oil after the first 10 hours of operation. Change the oil while the engine is still warm. The oil will flow freely and carry away more impurities. 
1. Unplug spark plug boot to 
prevent accidental starting. 
2. Remove the oil fill plug. 
3. Pour the oil out of the oil fill 
hole and into a container by tipping the unit to a vertical position (Fig. 24). Allow ample time for complete drainage.
4. Wipe up any oil residue on the unit and clean up any oil that
may have spilled. Dispose of the oil according to Federal,
State and local regulations.
5.Refill the crankcase with 3.04
fluid ounce (90 ml or 3/8 cup) of SAE 30 SF, SG, SH oil.
NOTE: Use the bottle and spout saved from initial use to measure the correct amount of oil. The top of the label on the bottle measures approximately 3.04 ounces (90 ml or 3/8 cup) (Fig. 23). Check the level; See Checking the Oil Level. If the level is low, add a small amount of oil and recheck. Do not overfill (Fig. 23).
6.Replace the oil fill plug.
7.Reconnect the spark plug boot.
AIR FILTER MAINTENANCE
Cleaning the Air Filter
WARNING: To avoid serious personal injury, always turn the unit off and allow it to cool before you clean or service it.
Clean and re-oil the air filter every 10 hours of operation. It is an important item to maintain. Failure to maintain your air filter properly can result in poor performance or can cause permanent damage to your engine.
1.Open the air filter cover. Push the tab on the left side of the cover in, then swing the air filter cover out and off of the air filter housing (Fig. 25).
2.Remove the air filter and the screen that sits behind it (Fig. 25).
3.Wash the filter in detergent and water (Fig. 26). Rinse the filter thoroughly and allow it to dry.
4.Apply enough clean SAE 30 motor oil to lightly coat the filter (Fig. 27).
5.Squeeze the filter to spread and remove excess oil (Fig. 28).
6.Replace the filter (Fig. 25).
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MAINTENANCE AND REPAIR INSTRUCTIONS
NOTE: If the unit is operated without the air filter, you will VOID the warranty.
7.Reinstall the air filter cover. Position the tabs on the sides of the air filter cover onto the slots at the top of the back plate (Fig. 25).
8.Push the cover in until the tab on the air filter backplate snaps into place in the slot on the air filter cover (Fig. 25).
Screen
Air Filter
Air Filter Housing |
Air Filter Cover |
|
|
|
|
Tab |
Hooks |
Air Filter |
Slot |
Fig. 25
Fig. 26
IDLE SPEED ADJUSTMENT
WARNING: To prevent serious personal injury, make sure the blade has stopped rotating before you turn it off.
The idle speed of the engine is adjustable. An idle adjustment
screw is between the air filter cover and the engine starter
housing (Fig. 29). NOTE: Careless adjustments can
seriously damage your
unit. Aside from the idle speed, only a Sears or other qualified service dealer should make carburetor adjustments.
1. Check Fuel
Old fuel is usually the reason for improper unit performance. Drain and refill the tank with fresh fuel prior to making any adjustments. Refer to Oil and Fuel Information.
2. Clean Air Filter
The condition of the air filter is important to the operation of the unit. A dirty air filter will restrict air flow. This is often mistaken for an out
of adjustment idle. Check the condition of the air filter before
adjusting the idle speed screw.
Refer to Air Filter Maintenance.
3. Adjust Idle Speed Screw
If, after checking the fuel and 
cleaning the air filter, the engine 
still will not idle, adjust the idle 
speed screw as follows: 
1. Start the engine and let it run at a high idle for a
minute to warm up. Refer to Starting/Stopping Instructions.
2.Move the throttle control
lever to the Slow position (
) and let the engine idle. If the engine stops, insert a small phillips in between the Air Filter Cover and the Engine Cover (Fig. 29).
NOTE: Do not engage the Blade Clutch Lever while adjusting the idle speed screw to ensure that the blade will not rotate.
3.Turn the idle speed screw in, clockwise, 1/8 of a turn at a time (as needed) until the engine idles smoothly.
Checking the fuel, cleaning the air filter, and adjusting the idle speed should solve most engine problems. If not and all of the following are true:
•the engine will not idle
•the engine hesitates or stalls on acceleration
•there is a loss of engine power
Have the carburetor adjusted by an authorized service dealer.
ROCKER ARM CLEARANCE
This requires disassembly of the engine. If you feel unsure or unqualified to perform this, take the unit to an authorized service center.
NOTE: Inspect the valve to rocker arm clearance with a feeler gauge after the first 10 hours of operation and every 25 hours of operation.
•The engine must be cold when checking or adjusting the valve clearance.
•This task should be performed inside, in a clean, dust free area.
1.Remove the six (6) screws on the back of the engine cover with a Flat-head or T-25 Torx screwdriver (Fig. 30).
2. Disconnect the spark plug wire.
3. Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8 in. socket counterclockwise.
4. Remove the engine cover (Fig. 30).
5. Clean dirt from around the rocker arm cover. Remove the screw holding the rocker arm cover with a large flat blade screwdriver or Torx T-25 bit (Fig. 31). Remove the rocker arm cover and gasket.
6.Pull the starter rope
slowly to bring the piston to the
top of its travel, (known as top dead center). Check that:
•The piston is at the top of its travel. Look in the spark plug hole to view
the piston (Fig. 32)
• Both rocker arms move freely, and both valves are closed
If these statements are not true, repeat
step 6. 7. Slide the feeler gauge between the
rocker arm and the top of each
valve stem. Measure the clearance
Fig. 31
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