24V Cordless String Trimmer ST24B01 Owner’s Manual TOLL-FREE HELPLINE: 1-888-90WORKS (888.909.6757) www.GreenWorksTools.com Read all safety rules and instructions carefully before operating this tool.
CONTENTS Contents............................................................................................................................... 2 Product Specifications ......................................................................................................... 2 Important Safety Instructions................................................................................................ 3 Symbols...................................................................................................
important safety instructions WA R N I N G Read and understand all instructions before using this product. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious personal injury. • Use only identical manufacturer’s replacement parts and accessories. Use of any other parts may create a hazard or cause product damage. • Always wear safety glasses with side shields marked to comply with ANSI Z87.1. Everyday glasses have only impact resistant lenses.
important safety instructions • Do not dispose of the batteries in a fire. The cells may explode. Check with local codes for possible special disposal instructions. • Do not open or mutilate the batteries. Released electrolyte is corrosive and may 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 with conducting materials such as rings, bracelets, and keys. The battery or conductor may overheat and cause burns.
SymbolS Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.
SymbolS The following signal words and meanings are intended to explain the levels of risk associated with this product. SYMBOL SIGNAL MEANING DANGER Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury. WARNING Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
know your string trimmer 1 2 3 5 4 Fig.
know your string trimmer KNOW YOUR string trimmer (See Figure 1.) The safe use of this product requires an understanding of the information on the product and in this operator’s manual as well as a knowledge of the project you are attempting. Before use of this product, familiarize yourself with all operating features and safety rules. 1. SAFETY LOCK-OUT BUTTON The safety lock-out button prevents accidental starting. 2. TRIGGER Activates the string trimmer when pulled. 3.
ASSEMBLY UNPACKING This product requires assembly. • Carefully remove the product and any accessories from the box. Make sure that all items listed in the packing list are included. • Inspect the tool carefully to make sure no breakage or damage occurred during shipping. • Do not discard the packing material until you have carefully inspected and satisfactorily operated the tool. • If any parts are damaged or missing, please call 1-888-909-6757.
ASSEMBLY WA R N I N G If any parts are damaged or missing, do not operate this product until the parts are replaced. Use of this product with damaged or missing parts could result in serious personal injury. WA R N I N G Do not attempt to modify this product or create accessories not recommended for use with this string trimmer. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.
ASSEMBLY attaching the Guard (see Figure 2.) NOTE: Install the guard before the attachment is connected to the lower shaft. 1. 2. Invert the string trimmer to access the trimmer head. Remove the supplied screw (1) from the trimmer head with a philips head screwdriver (not included). 1 Fig. 2.1 3. 4. Slide the guard (2) into the slots on the trimmer head. Align the screw hole on the guard (3) with the screw hole on the trimmer head (4) 4 3 2 Fig. 2.2 5.
ASSEMBLY iNSTALLING THE UPPER SHAFT TO THE LOWER SHAFT (See Figure 3.) WA R N I N G Never install, remove, or adjust the lower end of the tool while the unit is running or with the battery pack installed. Failure to stop the motor or remove the battery pack can result in serious personal injury. 1. Set the unit on a flat, level surface. 2. Push in rotating handle latches (1) located on each side of the lower shaft (2). Align the latches with the positioning hole (3) on the upper shaft (4).
OPERATIon WA R N I N G 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. WA R N I N G Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury. WA R N I N G This string trimmer is not meant to be used with brush cutter attachments.
OPERATIon INSTALLING THE BATTERY PACK (See Figure 4.) • Align raised ribs (2) on battery pack with grooves in the trimmer’s battery port. • Make sure the latch on the back of the battery pack clicks into place and that battery pack is fully seated and secure in the trimmer before beginning operation. REMOVING THE BATTERY PACK (See Figure 4.) • Depress the battery release button (1) in the back of the battery pack and pull battery pack out of tool. 2 1 Fig.
OPERATIon operating the trimmer (See Figure 6.) WA R N I N G Always hold the string trimmer away from the body keeping clearance between the body and the string trimmer. Any contact with the string trimmer cutting head while operating can result in serious personal injury. Follow these tips when using the string trimmer: • Hold the trimmer with your right hand on the rear handle and your left hand on the auxiliary handle. • Keep a firm grip with both hands while in operation.
OPERATIon WA R N I N G Any contact with the attachment cutting head can result in burns and/or other serious personal injury. WA R N I N G Read the safety information for safe operation when using a blade attachment and refer to the safety rules and instructions in your attachment manual. Never use a brush cutter attachment with this electric power head. Improper operation of a blade or any attachment could result in serious injury. ADVANCING LINE The trimmer is equipped with an auto-feed head.
OPERATIon REPLACING THE LINE (See Figure 8.) 1. Press the tabs simultaneously on the side of the trimmer head and remove cover and spool. Cover Spool Fig. 8.1 2. 3. 4. Remove any remaining line. Clean dirt and debris from all parts. Replace spool if it is worn or damaged. Replace with a pre-wound spool, or replace line using 10 feet (3 meters) of 0.065 inch (1.65 mm) diameter line. WA R N I N G Never use wire, rope, string, etc., which can break off and become a dangerous projectile.
OPERATIon 3. Wind the lines clockwise around the spool simultaneously, as shown by the arrows on the spool. Fig. 9.3 4. Place the line in the slot on the spool flange, leaving about 6 in. ( 152 mm ) extended beyond the slot. Spool Flange Fig. 9.4 NOTE: Do not overfill. After winding the line, there should be at least 1/4 in. (6mm) between the wound line and the outside edge of the spool. 5. Place the spool in the trimmer head as shown below. Fig. 9.5 6.
OPERATIon 7. Reinstall the spool and cover onto the trimmer head. Push until cover snaps into place. Fig. 9.7 cutting tips (See Figure 10.) • Keep the trimmer tilted toward the area being cut; this is the best cutting area. • The trimmer cuts when passing the unit from right to left. This will avoid throwing debris at the operator. Avoid cutting in the dangerous area shown in figure 10. • Use the tip of string to do the cutting; do not force string head into uncut grass.
BATTERY & CHARGER MAINTENANCE CHECKING BATTERY CAPACITY Press the battery capacity indicator (BCI) button. The lights will illuminate according to the batteries capacity level.
MAINTENANCE general maintenance Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, lubricant, grease, etc. Always store the machine clean and in a dry enclosure with the battery charged.
ENVIRONMENTALLY SAFE BATTERY DISPOSAL The following toxic and corrosive materials are in the batteries used in this string trimmer battery pack: Lithium-Ion, a toxic material. WA R N I N G All toxic materials must be disposed of in a specified manner to prevent contamination of the environment. Before disposing of damaged or worn out Lithium-Ion battery packs, contact your local waste disposal agency, or the local Environmental Protection Agency for information and specific instructions.
troubleshooting Problem String trimmer fails to start when trigger lock button is depressed. Cause 1. The battery pack is not attached to the trimmer. Solution 1. Attach the battery pack to the trimmer. 2. No electrical contact between the trimmer and battery. 2. Remove battery check contact and reinstall the battery pack. 3. The battery pack is depleted. 3. Charge the battery pack. 4. The lock-off lever and trigger are not depressed simultaneously. 4.
troubleshooting Problem Lines will not advance. Cause Solution 1. Lines are welded to themselves. 1. Lubricate with silicone spray. Respool the head by following the directions in this manual. 2. Not enough line on spool. 2. Install more line. Refer to Line Replacement earlier in this manual. 3. Lines are worn too short. 3. Pull line while pressing button. 4. Lines are tangled on spool. 4. Remove lines from spool and rewind. Refer to Line Replacement earlier in this manual. 1.
LIMITED WARRANTY GREENWORKS™ hereby warranties this product, to the original purchaser with proof of purchase, for a period of four (4) years against defects in materials, parts or workmanship. GREENWORKS™, at its own discretion will repair or replace any and all parts found to be defective, through normal use, free of charge to the customer.
EXPLODED VIEW parts list Item No. 1 2 3 4 5 6 Part No.
Greenworks Tools P.O. Box 3130 Mooresville, North Carolina 28117 TOLL-FREE HELPLINE: 1-888-90WORKS (888.909.
