DEWALT String Trimmer Instruction Manual

DEWALT String Trimmer

DEWALT String Trimmer

If you have questions or comments, contact us

1-800-4-DeWALT

MODEL: DCST972

Components

1. Variable speed trigger
2. Lock-off lever
3. Lock-off tab
4. Powerhead handle
5. Speed control switch
6. Auxiliary handle
7. Battery
8. Battery release button

Fig. B

| 75–100% charged
---|---
| 51–74% charged
| < 50% charged
| Pack needs to be charged

Fig. C
Indicators/Témoin/Indicador

| Charging|
---|---|---
| Fully Charged|
| Hot/Cold Pack Delay|

Fig. D

Fig. E

  WARNING: Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
WARNING: To reduce the risk of injury, read the instruction manual.

Intended Use
This powerhead has been designed for the purpose of professional and residential lawn and garden maintenance. It is recommended for use with DeWALT attachments. DO NOT use this tool for any job other than its intended use. DO NOT use this powerhead or any attachment for anything other than its intended use described in this and the attachments instructions.

WARNING : This powerhead is only to be used with DEWALT attachments. Use of attachments that are not recommended for use may increase risk of injury.
WARNING: Read the entire instruction manual for each optional attachment prior to using this powerhead.
For a complete list of recommended attachments contact customer service.
DO NOT use under wet conditions or in the presence of flammable liquids or gases.
DO NOT let children come into contact with the tool. Supervision is required when inexperienced operators use this tool.

Definitions: Safety Alert Symbols and Words
This instruction manual uses the following safety alert symbols and words to alert you to hazardous situations and your risk of personal injury or property damage.

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.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. (Used without word) Indicates a safety-related message.
NOTICE: Indicates a practice not related to personal injury which, if not avoided, may result in property damage.

GENERAL POWER TOOL SAFETY WARNINGS
WARNING: Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.

SAVE ALL WARNINGS
AND INSTRUCTIONS FOR
FUTURE REFERENCE.
The term “power tool” in the warnings refers to your mains‑operated (corded) power tool or battery‑operated (cordless) power tool.

1) Work Area Safety

• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks that may ignite dust or fumes.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical Safety

• Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
• Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
• Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
• Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
• When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
• If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock.

Personal Safety

• Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
• Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non‑skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
• Prevent unintentional starting. Ensure the switch is in the off‑position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents.
• Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.
• If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust‑related hazards.
• Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

Power Tool Use and Care

• Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
• Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
• Disconnect the plug from the power source and/ or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
• Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
• Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
• Use the power tool, accessories and tool bits, etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
• Keep handles and grasping surfaces dry, clean, and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

Battery Tool Use and Care

• Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type. of battery pack may create a risk of fire when used with another battery pack.
• Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
• When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
• Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.
• Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 265 °F (130 °C) may cause explosion.
• Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

Service

• Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
• Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Additional Safety Information

WARNING: Never modify the power tool or any part of it. Damage or personal injury could result.
WARNING: ALWAYS use safety glasses. Everyday eyeglasses are NOT safety glasses. Also use face or dust mask if operation is dusty. ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT:

• ANSI Z87.1 eye protection (CAN/CSA Z94.3),
• ANSI S12.6 (S3.19) hearing protection,
• NIOSH/OSHA/MSHA respiratory protection.

WARNING: Some dust contains chemicals known to State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• compounds in fertilizers,
• compounds in insecticides, herbicides and pesticides,
• arsenic and chromium from chemically treated lumber. To reduce your exposure to these chemicals, wear approved safety equipment such as dust masks that are specially designed to filter out microscopic particles.

WARNING: Use of this tool can generate and/or disperse dust, which may cause serious and permanent respiratory or another injury. Always use NIOSH /OSHA-approved respiratory protection appropriate for dust exposure. Direct particles away from face and body.
WARNING: Always wear proper personal hearing protection that conforms to ANSI S12.6 (S3.19) during use. Under some conditions and duration of use, noise from this product may contribute to hearing loss.
CAUTION: When not in use, place tool on its side on a stable surface where it will not cause a tripping or falling hazard. Some tools with a large battery pack will stand upright but may be easily knocked over.

Air vents often cover moving parts and should be avoided. Loose clothes, jewelry, or long hair can be caught in moving parts. The label on your tool may include the following symbols. The symbols and their definitions are as follows:

• BPM ……………….. beats per minute
• V ……………………. volts
• min ………………… minutes
• or DC ………… direct current
• …/min ………….. per minute
• RPM ……………….. revolutions per minute
• A ……………………. amperes
• Hz ………………….. hertz
• W …………………… watts
• Wh …………………. watt-hours
• no ………………….. no-load speed
• n ……………………. rated speed
• ………………… safety alert symbol
•  ………………… wear respiratory protection
• ………………… wear eye protection
• ………………… Class II Construction(double insulated)
• ………………… wear hearing protection
• ****………………… read all documentation
• ………………… avoid staring at the light
• or AC………… alternating current
• Ah ………………….. amp-hours

BATTERIES AND CHARGERS

The battery pack is not fully charged out of the carton. Before using the battery pack and charger, read the safety instructions below and then follow charging procedures outlined. When ordering replacement battery packs, be sure to include the catalog number and voltage.

READ ALL INSTRUCTIONS

Important Safety Instructions for All Battery Packs

WARNING: Read all safety warnings, instructions, and cautionary markings for the battery pack, charger and product. Failure to follow the warnings  and instructions may result in electric shock, fire and/or serious injury.

• Do not charge or use the battery pack in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Inserting or removing the battery pack from the charger may ignite the dust or fumes.
• NEVER force the battery pack into the charger. DO NOT modify the battery pack in any way to fit into a non‑compatible charger as battery pack may rupture causing serious personal injury. Consult the chart at the end of this manual for compatibility of batteries and chargers.
• Charge the battery packs only in DeWALT chargers.
• DO NOT splash or immerse in water or other liquids.
• DO NOT allow water or any liquid to enter battery pack.
• Do not store or use the tool and battery pack in locations where the temperature may reach or exceed 104 °F (40 °C) (such as outside sheds or metal buildings in summer). For best life store battery packs in a cool, dry location. NOTE: Do not store the battery packs in a tool with the trigger switch locked on. Never tape the trigger switch in the ON position.
• Do not incinerate the battery pack even if it is severely damaged or is completely worn out. The battery pack can explode in a fire. Toxic fumes and materials are created when lithium‑ion battery packs are burned.
• Do not expose a battery pack or appliance to fire or excessive temperature. Exposure to fire or temperature above 265 °F (130 °C) may cause explosion.
• Follow all charging instructions and do not charge the battery pack or appliance outside of the temperature range specified in the instructions. Charging improperly or at temperatures outside of the specified range may damage the battery and increase the risk of fire.
• If battery contents come into contact with the skin, immediately wash area with mild soap and water. If battery liquid gets into the eye, rinse water over the open eye for 15 minutes or until irritation ceases. If medical attention is needed, the battery electrolyte is composed of a mixture of liquid organic carbonates and lithium salts.
• Contents of opened battery cells may cause respiratory irritation. Provide fresh air. If symptoms persist, seek medical attention.
• Battery liquid may be flammable if exposed to spark or flame.
• Never attempt to open the battery pack for any reason. If the battery pack case is cracked or damaged, do not insert it into the charger. Do not crush, drop or damage the battery pack. Do not use a battery pack or charger that has received a sharp blow, been dropped, run over, or damaged in any way (e.g., pierced with a nail, hit with a hammer, stepped on). Damaged battery packs should be returned to the service center for recycling.

Storage Recommendations
The best storage place is one that is cool and dry, away from direct sunlight and excess heat or cold. Store the fully charged battery pack out of the charger.

Battery Pack Cleaning Instructions
Dirt and grease may be removed from the exterior of the battery pack using a cloth or soft non-metallic brush. Do not use water or any cleaning solutions.
Fuel Gauge Battery Packs (Fig. B)
Some battery packs include a fuel gauge. When the fuel gauge button is pressed and held, the LED lights will indicate the approximate level of charge remaining. This does not indicate tool functionality and is subject to variation based on product components, temperature, and end-user application.
Transportation
WARNING: Fire hazard. Do not store, carry, or transport the battery pack so that metal objects can contact exposed battery terminals. For example, do not place the battery pack in aprons, pockets, tool boxes, product kit boxes, drawers, etc., with loose nails, screws, keys, coins, hand tools, etc. When transporting individual battery packs, make sure that the battery terminals are protected and well insulated from materials that could contact them and cause a short circuit. NOTE: Li‑ion battery packs should not be put in checked baggage on airplanes and must be properly protected from short circuits if they are in carry‑on baggage.
Shipping the DEWALT FlEXVOlT™ Battery Pack
The DeWALT FLEXVOLT™ battery pack has a battery cap that should be used when shipping the battery pack.

Attach the cap to the battery pack to ready it for shipping. This converts the battery pack to three separate 20V batteries. The three batteries have the Watt-hour rating labeled “Shipping” on the battery pack. If shipping without the cap or in a tool, the pack is one battery at the Watt hour rating labeled “Use”.

Example battery pack label:
USE: 120 Wh SHIPPING: 3 x 40 Wh

In this example, the battery pack is three batteries with 40 Watt-hours each when using the cap. Otherwise, the battery pack is one battery with  120 Watt- hours.

The RBRC® Seal

Please take your spent battery packs to an authorized DeWALT service center or to your local retailer for recycling. In some areas, it is illegal to place spent battery packs in the trash. You may also contact your local recycling center for information on where to drop off the spent battery pack. Do not place in curbside recycling. For more information visit www.call2recycle.org. or call the toll-free number in the RBRC® Seal. RBRC® is a registered trademark of Call 2 Recycle, Inc.

Important Safety Instructions for All Battery Chargers
WARNING: Read all safety warnings, instructions, and cautionary markings for the battery pack, charger and product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.

• DO NOT attempt to charge the battery pack with any chargers other than a DeWALT charger. DeWALT chargers and battery packs are specifically designed to work together.
• These chargers are not intended for any uses other than charging DeWALT rechargeable battery packs. Charging other types of battery packs may cause them to overheat and burst, resulting in personal injury, property damage, fire, electric shock or electrocution.
• Do not expose the charger to rain or snow.
• Do not allow water or any liquid to enter charger.
• Pull by the plug rather than the cord when disconnecting the charger. This will reduce the risk of damage to the electric plug and cord.
• Make sure that the cord is located so that it will not be stepped on, tripped over or otherwise subjected to damage or stress.
• Do not use an extension cord unless it is absolutely necessary. Use of improper extension cord could result in risk of fire, electric shock or electrocution.
• When operating a charger outdoors, always provide a dry location and use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
• An extension cord must have adequate wire size (AWG or American Wire Gauge) for safety. The smaller the gauge number of the wire, the heavier the cord and thus the greater its capacity. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. The following table shows the correct size to use depending on total length of all extension cords plugged together, and nameplate ampere rating. If in doubt, use the next heavier gauge.

Minimum gauge for Cord sets

• Do not place any object on top of the charger or place the charger on a soft surface that might block the ventilation slots and result in excessive internal heat.
  Place the charger in a position away from any heat source. The charger is ventilated through slots in the top and the bottom of the housing.

• Do not operate the charger with a damaged cord or plug. Have them replaced immediately.

• Do not operate the charger if it has received a sharp blow, been dropped or otherwise damaged in any way. Take it to an authorized service center.

• Do not disassemble the charger; take it to an authorized service center when service or repair is required. Incorrect reassembly may result in a risk of electric shock, electrocution or fire.

• The charger is designed to operate on standard 120V household electrical power. Do not attempt to use it on any other voltage. This does not apply to the vehicular charger.

• Foreign materials of a conductive nature, such as, but not limited to, grinding dust, metal chips, steel wool, aluminum foil or any buildup of metallic particles should be kept away from the charger cavities and ventilation slots.

• Always unplug the charger from the power supply when there is no battery pack in the cavity.

Charging a Battery (Fig. C)

1. Plug the charger into an appropriate outlet.

2. Insert and fully seat battery pack. The red charging light will continuously blink while charging.

3. Charging is complete when the red charging light remains continuously ON. Battery pack can be left in charger or removed. Some chargers require the battery pack release button to be pressed for removal.
   WARNING: Only charge batteries in air temperature over 40° F (4.5° C)  and below 105° F (+40.5° C).

4. Charger will not charge a faulty battery pack, which may be indicated by the light staying OFF. Take charger and battery pack to an authorized service center if light stays OFF.
   NOTE: Refer to label near charging light on charger for blink patterns. Older chargers may have additional information and/or may not have a yellow indicator light.

Hot/Cold Pack Delay
When the charger detects a battery pack that is too hot or too cold, it automatically starts a Hot/Cold Pack Delay, suspending charging until the battery pack has reached an appropriate temperature. The charger then automatically switches to the pack charging mode. This feature ensures maximum battery pack life.
A cold battery pack may charge at a slower rate than a warm battery pack.
The hot/cold pack delay will be indicated by the red light continuing to blink but with the yellow light continuously ON. Once the battery pack has reached an appropriate temperature, the yellow light will turn OFF and the charger will resume the charging procedure.
DCB118 and DCB1112 Chargers
The DCB118 and DCB1112 chargers are equipped with an internal fan designed to cool the battery pack. The fan will turn on automatically when the battery pack needs to be cooled.
Electronic Protection System
Li-Ion tools are designed with an Electronic Protection System that will protect the battery pack against overloading, overheating, or deep discharge. The tool will automatically turn off and the battery pack will need to be recharged.

Important Charging Notes

1. The charger and battery pack may become warm to the touch while charging. This is a normal condition and does not indicate a problem. To facilitate the cooling of the battery pack after use, avoid placing the charger or battery pack in a warm environment such as in a metal shed or an uninsulated trailer.

2. If the battery pack does not charge properly:
   a. Check operation of the receptacle by plugging in a lamp or other appliance;
   b. Check to see if the receptacle is connected to a light switch that turns the power off when you turn out the lights;
   c. If charging problems persist, take the tool, battery pack, and charger to your local service center.

3. You may charge a partially used pack whenever you desire with no adverse effect on the battery pack.

Charger Cleaning Instructions
WARNING : Shock hazard. Disconnect the charger from the AC outlet before cleaning. Dirt and grease may be removed from the exterior of the charger using a cloth or soft non‑metallic brush. Do not use water or any cleaning solutions.
Wall Mounting
Some DeWALT chargers are designed to be wall mountable or to sit upright on a table or work surface.  If wall mounting, locate the charger within reach of an electrical outlet, and away from a corner or other obstructions which may impede airflow. Use the back of the charger as a template for the location of the mounting screws on the wall. Mount the charger securely using drywall screws (purchased separately) at least 1” (25.4 mm) long, with a screw head diameter of 0.28–0.35” (7–9 mm), screwed into wood to an optimal depth leaving approximately 7/32” (5.5 mm) of the screw exposed. Align the slots on the back of the charger with the exposed screws and fully engage them in the slots.

SAVE THESE INSTRUCTIONS FOR FUTURE USE ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of serious personal injury, turn unit off and remove the battery pack before making any adjustments or removing/ installing attachments or accessories. An accidental start‑up can cause injury.

Attaching the Auxiliary Handle (Fig. A, C)

1. Place the auxiliary handle  6 on top of the handle base  17  so the upper powerhead pole  19  is between them.
2. Hold the auxiliary handle in place and slide the handle bolts  18  and washers into the handle from the top, threading them into the handle base.
3. Tighten the handle bolts with the supplied hex wrench. Ensure the handle is securely attached.
4. Repeat for the other side of the auxiliary handle.

Powerhead (Fig. B)

WARNING: To reduce risk of injury:

• Before any use, be sure everyone using this product reads and understands all safety instructions and other information contained in the powerhead
  and attachment manuals.

• Never apply power without an attachment being properly mounted to the powerhead.
  WARNING: To reduce the risk of serious personal injury, turn unit off and remove the battery pack before making any adjustments or removing/ installing attachments or accessories. An accidental start‑up can cause injury. The powerhead can separate from the attachment by turning the knob  20 counterclockwise, depressing the latching button  21 and gently pulling them apart by their poles  1 ,  19 .
  This should only be done with the power switch off and the battery pack removed. Inside the upper powerhead pole  19 is a mechanical coupling that will spin if the powerhead is turned on. This coupling can cause injury if contacted while the powerhead is operating. Arrows 12  must align for proper assembly of most attachments. See specific attachment instructions for details.
  NOTE: Ensure the attachment is fully engaged and the knob is fully tightened before operating. Check for proper engagement and tightness during use.

Attachments

• WARNING: This powerhead is only to be used with DEWALT attachments. Use of attachments that are not recommended for use may increase risk of injury.
• WARNING: Read the entire instruction manual for each optional attachment prior to using with this powerhead. This powerhead has been designed for the purpose of residential lawn and garden maintenance. It is recommended for use with DeWALT attachments.
  DO NOT use this powerhead or any attachment for anything other than its intended use described in this and the attachments instructions. For a complete list of recommended attachments contact customer service.

Assembling the Attachment to the Powerhead (Fig. B)

1. The upper powerhead pole  7  is equipped with three latching holes  8,  9,  10  for the latching button  21.

2. When installing attachment pole  5 into the upper powerhead pole  7, align the latching button 21  with the correct latching hole  8. See specific attachment instructions for details.
   NOTE: To properly engage the latching button 21  with the latching hole 8, slightly rotate the powerhead pole  7  and move it axially until the latching button engages the latching hole.

3. Turn the knob  20  to secure the attachment.

4. See the attachment instructions for properly assembled attachment.

OPERATION
WARNING : To reduce the risk of serious personal injury, turn unit off and remove the battery pack before making any adjustments or removing/ installing attachments or accessories. An accidental start‑up can cause injury.
WARNING: Read the entire instruction manual for each optional attachment prior to using with this powerhead.

Installing and Removing the Battery Pack (Fig. E)
NOTE: For best results, make sure your battery pack is fully charged. To install the battery pack  7  into the tool handle, align the battery pack with the rails inside the tool’s handle and slide it into the handle until the battery pack is firmly seated in the tool and ensure that it does not disengage. To remove the battery pack from the tool, press the release button 8  and firmly pull the battery pack out of the tool handle. Insert it into the charger as described in the charger section of this manual.

Proper Hand Position (Fig. J)
WARNING: To reduce the risk of serious personal injury, ALWAYS use proper hand position as shown.
WARNING: To reduce the risk of serious personal injury, ALWAYS hold securely in anticipation of a sudden reaction.
**WARNING: Hold the tool using only the designated gripping surfaces: The powerhead handle and the auxiliary handle.
WARNING:** Do not use the pole as a gripping surface. Proper hand position requires one hand on the powerhead handle  4  and one hand on the auxiliary handle  6.

Switching On and Off (Fig. A, G)

1. To turn the appliance on, push the lock-off tab  3 forward, squeeze the lock-off lever  2  and then the variable speed trigger switch  1 .
2. To turn the appliance off, release the variable speed trigger switch and lock-off lever.

WARNING: Never attempt to lock the trigger in the on position. Speed Control Switch (Fig. A, G)

This powerhead gives you the choice to operate at a more efficient speed to extend the runtime for larger jobs, or accelerate the tool speed for high- performance needs.

1. To extend runtime, pull the speed control switchback toward the battery housing into the “LO” position. This mode is best for larger projects that require more time to complete.
2. For high‑performance, push the speed control switch forward toward the auxiliary handle into the “HI” position. This mode is best to for applications that need higher RPM.

NOTE: When in “HI” mode, the runtime will be decreased as compared to when trimmer is in “LO” mode.

MAINTENANCE
WARNING: To reduce the risk of serious personal injury, turn unit off and remove the battery pack before making any adjustments or removing/ installing attachments or accessories. An accidental start‑up can cause injury.

Cleaning
WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week. To minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection when performing this procedure.
WARNING: Never use solvents or other harsh chemicals for cleaning the non‑metallic parts of the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any part of the tool into a liquid.

Accessories
WARNING: Since accessories, other than those offered by DeWALT, have not been tested with this product, use of such accessories with this tool could be hazardous. To reduce the risk of injury, only DeWALT recommended accessories should be used with this product. Recommended accessories for use with your tool are available at extra cost from your local dealer or authorized service center. If you need assistance in locating any accessory, please contact DeWALT call 1-800-4-DeWALT ( 1‑800‑433‑9258 ) or visit our website: www.dewalt.com.

Repairs
The charger and battery pack are not serviceable. There are no serviceable parts inside the charger or battery pack.

WARNING: To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush inspection and replacement, when applicable) should be performed by a DeWALT factory service center or a DeWALT authorized service center. Always use identical replacement parts.

Register Online
Thank you for your purchase. Register your product now for:

• WARRANTY SERVICE: Registering your product will help you obtain a more efficient warranty service in case there is a problem with your product.
• CONFiRMATIOn OF OWNERSHIP: In case of an insurance loss, such as fire, flood or theft, your registration of ownership will serve as your proof of purchase.
• FOR YOUR SAFETY: Registering your product will allow us to contact you in the unlikely event a safety notification is required under the Federal Consumer Safety Act.
• Register online at www.dewalt.com

Three Year Limited Warranty

DeWALT will repair or replace, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase (two years for batteries). This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit www.dewalt.com or call 1-800-4-DeWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. THIS LIMITED WARRANTY IS GIVEN IN LIEU OF ALL OTHERS, INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND EXCLUDES ALL INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so these limitations may not apply to you. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces. In addition to the warranty DeWALT tools are covered by our:

2 YEARs FREE SERVICE

DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first two years after purchase.
2 YEARs FREE SERVICE On Dewalt BATTERY PACKS DC9071, DC9091, DC9096, DC9182, DC9280, DC9360, DCB120, DCB122, DCB124, DCB127, DCB201, DCB203BT, DCB207, DCB361 3 YEARs FREE SERVICE On DEWAlT BATTERY PACKs DCB200, DCB203, DCB204, DCB204BT, DCB205, DCB205BT, DCB206, DCB208, DCB230, DCB240, DCB606, DCB609, DCB612

NOTE: Battery warranty voided if the battery pack is tampered with in any way. DeWALT is not responsible for any injury caused by tampering and may prosecute warranty fraud to the fullest extent permitted by law.

90 DAY MOnEY BACK gUARAnTEE

If you are not completely satisfied with the performance of your DeWALT Power Tool or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund – no questions asked. lATin America: This warranty does not apply to products sold in Latin America. For products sold in Latin America, see country-specific warranty information contained in the packaging, call the local company or see the website for warranty information. FREE WARning lABEl REPlACEMEnT: If your warning labels become illegible or are missing, call 1-800-4-DeWALT (1-800-433-9258) for a free replacement.

DeWALT Industrial Tool Co. 701 East Joppa Road, Towson, MD 21286 Copyright © 2020

The following are trademarks for one or more DeWALT power tools: the yellow and black color scheme, the “D” shaped air intake grill, the array of pyramids on the handgrip,  the kit box configuration, and the array of lozenge-shaped humps on the surface of the tool.

DOWNLOAD RESOURCES

• DEWALT DEWALT String Trimmer [pdf] Instruction Manual DEWALT, DCST972, String Trimmer
• Read more: https://manuals.plus/dewalt/dewalt-string-trimmer-manual#ixzz7dBlxo7JB

FAQ’S

How long does it take to charge the battery?

It takes about 1 hour to charge a battery.

How do you change the string on a DeWalt trimmer?

Once the notch is out of position simply pull the knob. Straight. Up. We are going to use the recommended string from the wall. Look for the red flag that represents the end of your string.

What size DeWalt trimmer line?

It uses dual 0.080-inch cutting lines on a 13-inch diameter head. This DeWalt battery string trimmer has a straight shaft and weighs 8.5 lbs. It uses dual 0.080-inch cutting lines on a 13-inch diameter head.

Why does my strimmer line keep breaking?

Getting Too Close. The most frequent cause of a line breakage is through contact with something in the garden. Usually this is the result of the cutting head being taken too close to objects, e.g. garden stones, paving edges, walls etc.

How long will a fully charged battery last?

A fully charged battery will last approximately 1 hour.

How long do I have to charge the battery before I can use it?

You should charge the battery for at least 20 minutes before using it the first time.

How do I file a Dewalt warranty claim?

To make a claim under the terms of the warranty, please contact Customer Service at 1-800-4-DEWALT (1-800-433-9258) or using the form at https://support.dewalt.com/hc/en-us/requests/new.

Why does my electric trimmer keep stopping?

The trimmer may need lubrication and cooling fins or air passages may be blocked. A cordless trimmer’s battery or charger may be faulty.

Can DeWalt trimmer be used as edger?

Product Details. The DEWALT Universal Edger Attachment delivers versatility and power to get your job done. This Edger Attachment is a universal attachment, it will transform your attachment capable power head to an edger.

What size DeWalt trimmer line?

It uses dual 0.080-inch cutting lines on a 13-inch diameter head. This DeWalt battery string trimmer has a straight shaft and weighs 8.5 lbs. It uses dual 0.080-inch cutting lines on a 13-inch diameter head.

How do you maintain a string trimmer?

Once a season, give the exterior of your trimmer a good cleaning. Use a mix of water and dish detergent on the string trimmer head to clean off any grease, dirt and debris. Locate the air filter cover and remove it to make sure the air filter is clean. Replace it approximately every 90 days, based on wear and tear.

How do you remove a strimmer cap?

Place your hand on the cover if the cover doesn’t have a nut. Reach your fingers over the cover until you can feel the two tabs on opposites sides of the cover. Squeeze the tabs together, and lift the cover at the same time. The cover should come right off.

VIDEO

DEWALT String Trimmer
www://dewalt.com/

References

• Call2Recycle | Leading the Charge For Battery Recycling
• DEWALT® Power Tools Official Site | Guaranteed Tough®

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>