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To reduce the risk of serious injury, never use wire or metal-reinforcedline or other material in place of the nylon cutting lines. Pieces of wirecould break off and be thrown at high speed toward the operator or bystanders. To reduce the risk of injury from loss of control, never work on a ladderor on any other insecure support. Never hold the cutting attachmentabove waist height. If situations occur that are not covered in this manual, use care andgood judgment. Contact the EGO Customer Service Center for assistance. Do not charge the battery pack in rain, or in wet locations. Use only with the battery packs and chargers listed below:BATTERY PACKCHARGERBA1120, BA1400, BA2240, CH5500BA2800, BA4200CH2100 Do not dispose of the battery in a fire. The cells may explode. Check withlocal codes for possible special disposal instructions. Do not open or mutilate the battery. Released electrolyte is corrosive andmay cause damage to the eyes or skin. It may be toxic if swallowed. Exercise care in handling batteries in order not to short the battery withconducting materials such as rings, bracelets, and keys. The battery orconductor may overheat and cause burns. Replacement Parts - When servicing, use only identical EGO replacement parts.Use of any other accessory or attachment may increase the risk of injury. Battery tools do not have to be plugged into an electrical outlet;therefore, they are always in operating condition. Be aware of possiblehazards even when the tool is not operating. Take care when performingmaintenance or service. Remove or disconnect battery pack before servicing, cleaning orremoving material from the trimmer. Do not wash with a hose; avoid getting water in motor and electricalconnections. Save these instructions. Refer to them frequently and use them to instructothers who may use this tool. If you lend this tool to someone else, also lendthese instructions to them to prevent misuse of the product and possible injury.SAVE THESE INSTRUCTIONS!856-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

INTRODUCTIONCongratulations on your selection of the EGO 56-Volt Lithium-ion Lithium-Ion Cordless15" String Trimmer. It has been designed, engineered and manufactured to give you thebest possible dependability and performance.Should you experience any problem you cannot easily remedy, please contact EGOcustomer service center 1-855-EGO-5656.This manual contains important information on to the safe assembly, operation andmaintenance of your string trimmer. Read it carefully before using the string trimmer.Keep this manual handy so you can refer to it at any time.SERIAL NUMBERDATE OF PURCHASEYOU SHOULD RECORD BOTH SERIAL NUMBER AND DATE OF PURCHASE AND KEEP IN A SAFEPLACE FOR FUTURE REFERENCESPECIFICATIONSVoltage56V DCNo-load speed4000-5800 RPMCutting MechanismBump HeadCutting Line TypeAL0951 0.095" (2.4mm) nylon lineCutting Width15 in. (38 cm)Weight (Without battery pack) 6.7 lb. (3.04Kg)56-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER9

PACKING LISTPART NAMEQUANTITYString trimmer1Guard1Front-assist handle assembly1M5 Hex wrench1Bolts for locking shaft (ST1500-S Only)2Operator's manual1UNFOLDING THE SHAFT (ONLY FOR ST1500-S)WARNING: In order to avoid pinching your hands or fingers, do not hold theshaft at the joints.WARNING: Do not attempt to start the trimmer until the shaft has been locked.WARNING: Always remove thebattery pack from the product whenyou are assembling parts, makingadjustments, cleaning, or when theproduct is not in use.11. Remove the battery pack from thetrimmer.2. Put your trimmer on the ground andcarefully unfold the shaft. Make surethat the cable is inside the shaftso that it will not be pinched whenclosing the joints (Fig. 1).23. Use the M5 hex wrench to lock theshaft with the two bolts supplied(Fig. 2).1056-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

MOUNTING THE GUARDWARNING: Always wear gloves when mounting or replacing the guard. Be carefulof the blade on the guard and protect your hands from being injured by the blade.WARNING: Always remove the battery pack from the product when you areassembling parts, making adjustments, cleaning, or when the product is not in use.1. Remove the battery pack from thetrimmer.32. Loosen the two bolts in the guardwith the M5 hex wrench; removethe bolts and spring washers fromthe guard (Fig. 3).3. Lift the trimmer head and face itdownward; align the two mountingholes in the guard with the twoassembly holes in the base of theshaft. Make sure that the internalsurface of the guard faces towardsthe trimmer head (Fig. 4).44. Lock the guard in place with thebolts and the M5 hex wrench (Fig. 5).556-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER11

MOUNTING AND ADJUSTING THE FRONT-ASSIST HANDLEWARNING: Always remove the battery pack from the product when you areassembling parts, making adjustments, cleaning, or when the product is not in use.1. Remove the battery pack from the trimmer.2. Loosen the four screws in thehandle with a Phillips screwdriver(available separately) and removethe screws and the lower clampfrom the handle (Fig. 6).3. Attach the front-assist handle andthe lower clamp on the shaft andsecure them by pre-tightening thefour screws. Turn the front-assisthandle upwards so that it pointstoward the top of the handle (Fig. 7).6Front-Assist HandleLower Clamp74. ST1500-S: Adjust the front-assisthandle position so that it is betweenthe rear handle housing and thejoint of the shaft, as shown in Fig.7. For ST1500: adjust the handleposition so that it is betweenthe rear handle housing and thewarning label on the shaft. Shorterusers may adjust the handle to alower position (away from you) and taller users may adjust the handle to an upperposition (towards you). The handle should be adjusted so that your front arm willbe straight when using the trimmer.5. Tighten the four screws so that the handle cannot be rotated on the shaft.1256-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

DESCRIPTIONKNOW YOUR STRING TRIMMER (Fig. 8)The safe use of this product requires an understanding of the information on the tool andin this operator’s manual, as well as knowledge of the project you are attempting. Beforeusing this product, familiarize yourself with all operating features and safety rules.8Rear HandleLock-Off LeverTriggerAdjustable Front-Assist HandleBattery-ReleaseButtonHingeST1500-S onlyLatchElectric ContactsEjection MechanismGuardTrimmer Head (Bump Head)Bump KnobLine-Cutting BladeWARNING: Never operate the tool without the guard securely in place. Theguard must always be on the tool to protect the user.56-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER13

ADJUSTABLE FRONT-ASSIST HANDLEFor easy control of the trimmer during cutting.REAR HANDLEErgonomic handle with overmold improves comfort and grip.TRIGGERTo turn the string trimmer On and Off and to adjust the trimmer head speed.LOCK-OFF LEVERHelps prevent accidental or unauthorized activation of the trigger. It must be depressedbefore the trigger can be activated.HINGE (ST1500-S ONLY)Connects and locks the two foldable shafts.TRIMMER HEAD (BUMP HEAD)The cutting attachment for cutting grass.BUMP KNOBA light tap of the bump knob on the ground while operating the trimmer releases thecutting line.GUARDDesigned to reduce the risk of injury from foreign objects flung backwards toward theoperator by the cutting attachment and from contact with the cutting attachment.LINE-CUTTING BLADESteel blade on the guard keeps the cutting line at the proper length.BATTERY-RELEASE BUTTONTo release the battery pack from the tool.LATCHLocks the battery pack when installing it on the tool.EJECTION MECHANISMAids in battery removal.1456-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

ASSEMBLYWARNING: If any parts are damaged or missing, do not operate this productuntil the parts are replaced. Use of this product with damaged or missing parts couldresult in serious personal injury.WARNING: Do not attempt to modify this product or create accessories notrecommended for use with this string trimmer. Any such alteration or modification ismisuse and could result in a hazardous condition leading to possibly serious personalinjury.WARNING: Always remove battery the pack from the product when you areassembling parts, making adjustments, cleaning, or when the product is not in use.UNPACKING This product requires assembly. Carefully remove the product and any accessories from the box. Make sure thatall items listed in the packing list are included. Inspect the tool carefully to make sure that no breakage or damage occurredduring shipping. Do not discard the packing material until you have carefully inspected andsatisfactorily operated the tool. If any parts are damaged or missing, please return the product to the place ofpurchase.56-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER15

OPERATIONWARNING: Do not allow familiarity with this product to make you careless.Remember that a careless fraction of a second is sufficient to inflict serious injury.WARNING: Always wear eye protection with side shields marked to comply withANSI Z87.1, along with hearing protection. Failure to do so could result in objects beingthrown into your eyes and other possible serious injuries.WARNING: Do not use any attachments or accessories not recommended by themanufacturer of this product. The use of attachments or accessories not recommendedcan result in serious personal injury.TO INSTALL/REMOVE BATTERYPACK (Fig. 9 & 10)9WARNING: Always remove thebattery pack from the product whenyou are assembling parts, makingadjustments, cleaning, or when not in use.Removing the battery pack will preventaccidental starting that could causeserious personal injury.Mounting SlotNOTE: Fully charge the battery pack before first use.To install battery pack (Fig. 9) Align the ribs of the battery pack with the mounting slots in the string trimmer’sbattery port. Press the battery pack towards the trimmer head until it snaps into position.NOTE: Make sure that the latch on the string trimmer snaps into place and the batterypack is secured to the tool before beginning operation.1656-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

To remove battery pack (Fig. 10)WARNING: Always be aware of the10Press to Releaselocation of your feet and children or petsaround you when pressing the batteryrelease button. Serious injury could resultif the battery pack falls. NEVER removethe battery pack at a high location. Hold the battery pack in the palm ofyour hand. Press the battery-release button with your thumb; the battery pack will disengagefrom the latch. Grasp the battery pack and remove it from the string trimmer.HOLDING THE STRING TRIMMERWARNING: Dress properly to reduce the risk of injury when operating this tool.Do not wear loose clothing or jewelry. Wear eye and ear/hearing protection. Wear heavy,long pants, boots and gloves. Do not wear short pants or sandals or go barefoot.Before operating the unit, stand in the operating position and check that: The operator is wearing eyeprotection and proper clothing. One arm is slightly bent, and the11hand on that arm is holding the rearhandle. The other arm is straight, withthat hand holding the front-assisthandle. The trimmer head is parallel to theground and easily contacts thematerial to be cut without the operatorhaving to bend over (Fig. 11).56-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER17

STARTING/STOPPING THE STRING TRIMMERBefore starting the string trimmer Make sure that you have a secure and balanced footing. Stand upright and hold the string trimmer in a relaxed position. Make sure that the cutting line is not touching the ground or any other objects. Hold the string trimmer with both hands: one hand on the rear handle and onehand on the front-assist handle.To start the string trimmer (Fig. 12)1. Press down the lock-off lever andhold it in that position. Depress thetrigger to turn on the string trimmer.12Lock-off Lever2. The rotational speed of the cuttingline is controlled with the variablespeed trigger. More pressure onthe trigger results in higher cuttingspeed; less pressure on the triggerresults in lower cutting speed.Adjust the speed to suit the task athand.TriggerNOTICE: The motor runs only when the lock-off lever and trigger are both pressed .To stop the string trimmerRelease the lock-off lever and the trigger to stop the string trimmer.WARNING: Always remove the battery pack from the string trimmer during workbreaks and after finishing work.1856-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

USING THE STRING TRIMMERWARNING: To avoid serious personal injury, wear goggles or safety glasses at alltimes when operating this unit. Wear a face mask or dust mask in dusty locations.Clear the area to be cut before each use. Remove all objects, such as rocks, brokenglass, nails, wire, or string that can be thrown or become entangled in the cuttingattachment. Clear the area of children, bystanders, and pets. At a minimum, keep allchildren, bystanders and pets at least 100 feet (30.5m) away; there still may be riskto bystanders from thrown objects. Bystanders should be encouraged to wear eyeprotection. If you are approached, stop the motor and cutting attachment immediately.WARNING: To prevent serious personal injury, remove the battery pack from thetool before servicing, cleaning, changing attachments or removing material from the unit.Check for damaged/worn parts before each useCheck the bump head, guard and front-assist handle and replace any parts that arecracked, warped, bent, or damaged in any away.The line-cutting blade on the edge of the guard can dull over time. It is recommendedthat you periodically sharpen it with a file or replace it with a new blade.WARNING: Always wear gloves when mounting or replacing the guard or whensharpening or replacing the blade. Note the location of the blade on the guard andprotect your hand from injury.Clean the trimmer after each useWARNING: To prevent serious personal injury, remove the battery pack from thetool before servicing, cleaning, changing attachments or removing material from the unit.1. Clear any grass that may have wrapped itself around the motor shaft or trimmer head.2. Use only mild soap and a damp cloth to clean the tool. Never let any liquid getinside the tool; never immerse any part of the tool into a liquid.2. Wipe off the unit with a clean, dry, soft cloth.4. Keep the air vents in the rear housing free from debris at all times.NOTICE: Obstructing the vents will prevent the air from flowing into the motor housingand may result in overheating or damage to the motor.56-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER19

WARNING: Never use water for cleaning your trimmer. Avoid using solventswhen cleaning plastic parts. Most plastics are susceptible to damage from varioustypes of commercial solvents. Use clean clothes to remove dirt, dust, oil, grease, etc.Tips for best trimmingresults (Fig. 13)13Direction ofrotation The correct angle for the cuttingattachment is parallel to the ground. This string trimmer allows you torest the bump knob on the groundfor more comfortable operation.Best cuttingDangerousareacutting area Do not force the trimmer. Allow thevery tip of the line to do the cutting(especially along walls). Cutting withmore than the tip will reduce cutting efficiency and may overload the motor. The cutting height is determined by the distance of the cutting line from the lawnsurface. Grass over 8 inches (200 mm) should be cut by working from top to the bottom insmall increments to avoid premature line wear or motor drag. Slowly move the trimmer into and out of the area being cut, maintaining thecutting head position at the desired cutting height. This movement can be eithera forward-backward motion or a side-to-side motion. Cutting shorter lengthsproduces best results. Trim only when grass and weeds are dry. Wire and picket fences can cause extra string wear or breakage. Stone and brickwalls, curbs, and wood may wear strings rapidly. Avoid trees and shrubs. Tree bark, wood moldings, siding, and fence posts caneasily be damaged by the strings.2056-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

ADJUSTING CUTTINGLINE LENGTH14The trimmer head allows the operator torelease more cutting line without stoppingthe motor. As line becomes frayed or worn,additional line can be released by lightlytapping the bump knob on the groundwhile operating the trimmer (Fig. 14).Bump KnobWARNING: Do not remove or alterthe line cutting blade assembly. Excessive line length will cause the motor to overheatand may result in serious personal injury.For best results, tap the bump knob on bare ground or hard soil. If line release isattempted in tall grass, the motor may overheat. Always keep the trimming line fullyextended. Line release becomes more difficult as the cutting line becomes shorter.LINE REPLACEMENTNOTICE: Always use standard nylon cutting line with a diameter that does not exceed0.095 in. (2.4 mm). Using line other than that specified may cause the string trimmer tooverheat or become damaged.WARNING: Never use metal-reinforced line, wire, or rope, etc. These can breakoff and become dangerous projectiles.There are two methods to replace the cutting line:1. Wind the spool with new line.2. Install a pre-wound spool.56-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER21

Wind the spool with new lineWARNING: To prevent serious personal injury, remove the battery pack from thetool before servicing, cleaning, changing attachments or removing material from the unit.1. Remove the battery pack2. Press the release tabs on the spoolbase and remove the spool retainerby pulling it straight out (Fig. 15).153. Remove the spool. Use a clean clothto clean the inner surface of thespool retainer and spool base.NOTICE: Always clean the spool retainerand spool base before reassembling thetrimmer head.4. Check the spool retainer, spool andspool base worn wear parts.Tab165. Take approximately 15 ft (4.5m) of0.095 in. (2.4 mm) diameter cuttingline. Fold the line in half and thenadjust it so that one end is4.5 in. (11cm) longer thanthe other (Fig. 16).6. Hook the folded end of the cuttingline onto either of the slots in thespool (Fig. 17).4.5" (11 cm)17Winding Direction7. Wind the line, in two even and tightlayers, onto the spool. Wind the linein the direction indicated on thespool (Fig. 17).NOTICE: Failure to wind the line in thedirection indicated will cause the trimmerhead to operate incorrectly.2256-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER

8. Place the ends of the line in twoopposite notches in the spool,with approximately 6 in. (15 cm)protruding (Fig. 18).186" (15 cm)9. Align the notches of the spool fromwhich the lines protrude with theeyelets in the spool retainer andposition the spool in the retainer(Fig. 19).19NotchNotchEyeletEyelet10.Holding the spool and spool retainer, grasp one end of the line and pull it torelease the line from the notch in the eyelet (Fig. 20). Repeat with the other end.2056-VOLT LITHIUM-ION CORDLESS 15" BRUSHLESS STRING TRIMMER23

11.With the spool base facingdownward, align the slots in thespool retainer with the tabs on thespool base and press the retainerevenly down until it snaps into place(Fig. 21).NOTICE: Make sure that the tabs on thespool base snap into place or the spoolwill come out during operation.21TabSlotInstall a pre-wound spoolWARNING: To prevent serious personal injury, remove the battery pack from thetool before servicing, cleaning, changing attachments or removing material from theunit.1. Remove the battery.2. Press the release tabs on the spool base and remove the retainer by pulling itstraight out (Fig. 15)3. Remove the spool. Use a clean cloth to clean the inner surface of the spoolretainer and spool base.NOTICE: Always clean the spool retainer and spool base before reassembling thetrimmer head.4. Check the spool retainer, spool and spool base for wear. If necessary, replace theworn parts.5. Place a pre-wound spool on the spool retainer.6. Align the notches of the spool from which the lines protrude with the eyelets inthe spool retainer and position the spool in the retainer (Fig. 19).7. Hold the spool and spool retainer; grasp the line and pull it to relea

broken glass, nails, wire, or string that can be thrown or become entangled in the cutting attachment. Make sure that other persons and pets are at least 100 ft. (30.5m) away. Always hold the trimmer firmly, with both hands on the handles, while operating. Wrap your fingers and thumbs around the handles.