DEWALT DCHT820 20V Max Lithium Ion Hedge Trimmer Instruction Manual

DEWALT DCHT820 20V Max Lithium Ion Hedge Trimmer

Product Description

1. Trigger switch
2. Lock-off switch
3. Switch handle
4. Blade guard
5. Bail handle
6. Blade
7. Battery pack
8. Battery release button
   

Definitions Safety Alert Symbols and Words

WARNING : Read all safety warnings, instructions, illustrations, and specifications in this manual, including the battery and charger sections provided in an original tool manual or the separate Batteries and Chargers manual. Manuals can be obtained by contacting Customer Service as described elsewhere in this manual. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

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.

Intended Use

Your DEWALT DCHT820 hedge trimmer has been designed for professional landscaping applications.
DO NOT use under wet conditions or in the presence of flammable liquids or gases.
This hedge trimmer is a professional power tool.
DO NOT let children come into contact with the tool.
Supervision is required when inexperienced operators use this tool.

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

2. Electrical Safety
   a ) 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.
   b ) 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.
   c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
   d ) 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.
   e) 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.
   f ) 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.

3. Personal Safety
   a ) 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.
   b ) Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
   c) 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.
   d ) 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.
   e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
   f ) 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.
   g ) 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.
   h ) 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.

4. Power Tool Use and Care
   a ) 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.
   b ) 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.
   c) 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.
   d ) 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.
   e) 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.
   f ) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
   g ) 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.
   h ) 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.

5. Battery Tool Use and Care
   a ) 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.
   b ) Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
   c) 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.
   d ) 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.
   e) 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.
   f ) 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.
   g ) 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.

6. Service
   a ) 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.
   b ) Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Hedge Trimmer Safety Warnings

• Keep all parts of the body away from the cutter blade.
  Do not remove cut material or hold material to be cut when blades are moving. Make sure the switch is off when clearing jammed material. Blades coast after turn off. A moment of inattention while operating the hedge trimmer may result in serious personal injury.

• Carry the hedge trimmer by the handle with the cutter blade stopped. Proper handling of the hedge trimmer will reduce possible personal injury from the cutter blades.

DANGER : Keep hands away from blade. Contact with blade will result in serious personal injury.

• Hold the power tool by insulated gripping surfaces only, because the cutter blade may contact hidden wiring. Cutter blades contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
• Use both hands when operating the hedge trimmer. Using one hand could cause loss of control and result in serious personal injury.
• Keep extension cord away from cutting area. During operation the extension cord may be hidden in shrubs and can be accidentally cut by the blade.
• Check the hedge for foreign objects, e.g. wire fences.

CAUTION : Do not expose to rain.
WARNING : Remove plug from the outlet immediately if the extension cord becomes damaged or cut.

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 cutting 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 created by this product contains chemicals known to the 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
  Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

• Wear protective clothing and wash exposed areas with soap and water. Allowing dust to get into your mouth, eyes, or lay on the skin may promote absorption of harmful chemicals.

WARNING : Use of this tool can generate and/or disperse dust, which may cause serious and permanent respiratory or other injury. Always use NIOSH/OSHA approved respiratory protection appropriate for the 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 large battery packs will stand upright on the battery pack 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:

V …………………….volts
Hz …………………..hertz
A…………………….amperes
W……………………watts
min…………………minutes
∼ or AC………..alternating current
or DC……direct current
………………….Class I Construction (grounded)
………………….Class II Construction (double insulated)
…/min…………..per minute
RPM………………..revolutions per minute
…………………..no load speed
………………….earthing terminal
…………………safety alert symbol
CSPM………………cut strokes per minute

SAVE THESE INSTRUCTIONS FOR FUTURE USE

OPERATION

WARNING : Before removing or installing battery, make certain the lock- off lever is engaged to prevent switch actuation.

Installing and Removing the Battery Pack (Fig. B)
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.

Switch (Fig. C)
To turn the unit on, push the lock-off switch 2 forward as shown in Figure C, and squeeze the trigger switch 1 Once the unit is running, you may release the lock-off switch.
In order to keep the unit running you must continue to squeeze the trigger. To turn the unit off, fully release the trigger and allow the lock-off switch 2 to engage.
WARNING : Never attempt to lock a switch in the ON position.
CAUTION : Do not cut stems greater than 3/4 inch (19 mm). Use the trimmer only for cutting normal shrubbery around houses and buildings.

Trimming Instructions

WORKING POSITION (Fig. D)

Maintain proper footing and balance and do not overreach.
Wear safety goggles, non-skid footwear when trimming.
Hold the unit firmly in both hands and turn the unit on.
Always hold the trimmer as shown in Figure D, with one hand on the switch handle 3 and one hand on the bail handle 5 . Never hold the unit by the blade guard 4 .

TRIMMING NEW GROWTH (Fig. A, E)

Using a wide, sweeping motion, feeding the blade teeth through the twigs, is most effective. A slight downward tilt of the blade 6 in the direction of motion gives the best cutting.

LEVEL HEDGES (Fig. F)

To obtain exceptionally level hedges a piece of string can be stretched along the length of the hedge as a guide.

SIDE TRIMMING HEDGES (Fig. G)

Orient the trimmer as shown and begin at the bottom and sweep up.

DANGER : KEEP HANDS AWAY FROM BLADES.
WARNING : To guard against injury, observe the following:

• READ INSTRUCTION MANUAL BEFORE USING. SAVE INSTRUCTION MANUAL.
• Check the hedge for foreign objects such as wires or fences before each use.
• KEEP HANDS ON HANDLES. DON’T OVERREACH.
• DO NOT USE UNDER WET CONDITIONS.

CAUTION : BLADE MAY COAST AFTER TURN OFF.

MAINTENANCE

WARNING : Remove battery pack before servicing, cleaning or removing material from the hedge trimmer.
Your DeWALT tool has been designed to operate over a long period of time with minimum maintenance.
Continuous satisfactory operation depends on proper tool care and regular cleaning.
WARNING : Before performing any maintenance, switch off tool and remove battery.

Lubrication

1. After use, carefully clean the blades with a resin solvent.
2. After cleaning, apply a light film of lubrication to the exposed blade.
3. Insert the battery and turn the trimmer vertical with the blades toward the ground and run the trimmer for a few seconds to fully disperse the lubrication.

The cutting blades are made from high quality, hardened steel and with normal usage, they will not require rehappening. However, if you accidentally hit a wire fence, stones, glass, or other hard objects, you may put a nick in the blade. There is no need to remove this nick as long as it does not interfere with the movement of the blade. If it does interfere, remove the battery and use a fine toothed file or sharpening stone to remove the nick. If you drop the trimmer, carefully inspect it for damage. If the blade is bent, housing cracked, handles broken or if you see any other condition that may affect the trimmer’s operation contact your local DeWALT authorized service center for repairs before putting it back into use.
Fertilizers and other garden chemicals contain agents which greatly accelerate the corrosion of metals. Do not store the unit on or adjacent to fertilizers or chemicals.
With the battery removed, use only mild soap and a damp cloth to clean the unit. Never let any liquid get inside the unit; never immerse any part of the unit into a liquid. Prevent the blades from rusting by applying a film of light machine oil after cleaning.

Accessories

WARNING : DO NOT use the hedge trimmer with any type of accessory or attachment. Such usage might be hazardous.
see country specific warranty information contained in the packaging, call the local company or see website for warranty information.

Repairs

The charger and batteries 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 factory service center or an 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 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/account-login.

Three‑Year Limited Warranty

For warranty terms, go to www.dewalt.com/support/warranty.
To request a written copy of the warranty terms, contact:
Customer Service at DeWALT Industrial Tool Co., 701 East Joppa Road, Towson, MD 21286 or call 1‑800‑4‑DeWALT (1‑800‑433‑9258).
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 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.

TROUBLESHOOTING

• Check battery installation.
• Check battery charging requirements.
• Check that lock-off is fully pushed down prior to moving main trigger.

Battery won’t charge.|

• Insert battery into charger until red charging light illuminates. Charge up to 8 hours if battery is totally drained.
• Plug charger into a working outlet.
• Check current at receptacle by plugging in an appliance.
• Check to see if receptacle is connected to a light switch which turns power off when you turn out the lights.
• Move charger and appliance to a surrounding air temperature of above 40 °F (4.5 °C) or below 105 °F (40.5 °C).

Slow running, noisy, or hot blades.|

• Inspect for nicks and remove if possible.
• Lubricate blades.
• Bring to a DeWALT factory service center to straighten blade, blade support, or teeth.
• Tighten bolts on the blade.

Compatible Battery Packs And Chargers

Battery Packs
DCB201, DCB203, DCB203G, DCB204, DCB204BT, DCB205, DCB205G, DCB205BT, DCB206, DCB208, DCB210, DCB230, DCB240, DCBP034, DCBP520, DCB606, DCB609, DCB609G, DCB612, DCB615

Chargers
DCB094, DCB102, DCB103, DCB104, DCB107, DCB112, DCB113, DCB115, DCB118, DCB132, DCB1102, DCB1104, DCB1106, DCB1112

WARNING : Use of any other battery packs may create a risk of injury and fire.

NOTE : DO NOT charge when the battery pack is below 40° F (4.5° C) or above 104° F (40° C). Do not store or use the tool and battery pack in locations where the temperature may reach or exceed 104° F (40° C).

• Maximum initial battery voltage (measured without a workload) is 20, 60 or 120 volts. Nominal voltage is 18, 54 or 108. (120V Max is based on using 2 DeWALT 60V Max lithium-ion batteries combined.)

Customer Support

DeWALT Industrial Tool Co., 701 East Joppa Road, Towson, MD 21286
(Nov23) Part No. NA503534 DCHT820 Copyright © 2015, 2019, 2023 DeWALT
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.

References

• DEWALT® Power Tools Official Site | Guaranteed Tough®
• DEWALT® Power Tools Official Site | Guaranteed Tough®

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