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DeWalt DCF840 User Manual

DeWalt DCF840
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DCF840
20V Max* 1/4" (6.35 mm) Brushless Cordless Impact Driver
Visseuse à percussion sans fil et sans balai de 6,35mm
(1/4po), 20V max*
Destornillador de Impacto Inalámbrico sin Escobillas de 20 V
Máx* de 6,35 mm (1/4")
If you have questions or comments, contact us.
Pour toute question ou tout commentaire, nous contacter.
Si tiene dudas o comentarios, contáctenos.
1-800-4-DeWALT
Instruction Manual
Guide D’utilisation
Manual de instrucciones
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DeWalt DCF840 Specifications

General IconGeneral
Voltage20V MAX
Max Torque1700 in-lbs
No Load Speed0-3200 RPM
Impacts Per Minute0-4200 IPM
Anvil Type1/4 inch
Battery TypeLithium-Ion

Summary

Components

Battery Pack

Details the battery pack used with the tool.

Battery Release Button

Explains the function of the battery release button.

Trigger Switch

Describes the tool's variable speed trigger switch.

Forward/Reverse Button

Explains the control for changing the tool's rotation direction.

Chuck Collar

Details the collar used for accessory changes.

Quick-Release Chuck

Describes the 1/4" hex quick-release chuck for accessories.

Worklight

Details the integrated worklight for illumination.

Belt Hook (Optional Accessory)

Information regarding the optional belt hook accessory.

Mounting Screw

Details the mounting screw used for accessories or mounting.

Intended Use

Safety Alert Symbols and Words

DANGER Symbol

Explains the DANGER symbol for imminent hazardous situations.

WARNING Symbol

Explains the WARNING symbol for potentially hazardous situations.

CAUTION Symbol

Explains the CAUTION symbol for potentially hazardous situations.

NOTICE Symbol

Explains the NOTICE symbol for safety-related messages.

General Power Tool Safety Warnings

Work Area Safety

Guidelines for maintaining a safe work environment.

Electrical Safety

Precautions regarding electrical hazards and tool use.

Personal Safety

Instructions for operator safety during tool use.

Power Tool Use and Care

Guidelines for the proper use and maintenance of power tools.

Battery Tool Use and Care

Instructions for safe usage and care of battery-powered tools.

Service

Information regarding tool servicing and repair.

Tool Servicing

Guidelines for professional servicing and replacement parts.

Battery Pack Servicing

Instructions for servicing damaged battery packs.

Impact Wrench Safety Warnings

Handling Insulated Gripping Surfaces

Ensuring safe handling by gripping insulated surfaces.

Hearing Protection

Importance of wearing ear protectors during operation.

Torque Wrench Warning

Warning against using the tool as a torque wrench.

Eye Protection

Necessity of wearing safety goggles for eye protection.

Vibration and Hand Fatigue

Managing vibration effects and hand fatigue during use.

Hot Accessories and Tools

Caution about hot accessories and tools during operation.

Additional Safety Information

Tool Modification Warning

Warning against modifying the power tool or its parts.

Mandatory Safety Equipment

Requirements for wearing safety glasses and other PPE.

Chemical Exposure Hazards

Information on hazardous chemicals in dust and exposure reduction.

Protective Clothing and Hygiene

Guidance on protective clothing and post-work hygiene.

Dust Extraction and Control

Importance of using dust extraction for safety.

Workpiece Securing

Methods for securing the workpiece for stable operation.

Air Vent Safety

Caution about keeping air vents clear of obstructions.

Tool Storage Precautions

Safe placement of the tool when not in use.

Tool Label Symbols

Explanation of symbols found on the tool's label.

Batteries and Chargers

Battery Pack and Charger Usage

Initial use and charging procedures for battery packs and chargers.

Important Safety Instructions for All Battery Packs

Critical safety warnings for all battery packs.

Explosive Atmosphere Precautions

Safety measures when using battery packs in explosive environments.

Charger Compatibility and Force

Warning against forcing battery packs into chargers or modifying them.

Approved Charger Usage

Requirement to use only DEWALT chargers for battery packs.

Liquid Exposure Warning

Warning against exposing battery packs to liquids.

Temperature Storage Limits

Guidelines for storing and using battery packs at appropriate temperatures.

Trigger Lock Storage Warning

Warning against storing battery packs with the trigger locked ON.

Battery Pack Incineration Warning

Prohibition of battery pack incineration due to explosion risk.

Fire and Temperature Exposure

Warning against exposing battery packs to fire or extreme temperatures.

Charging Temperature Range

Adherence to specified temperature ranges for charging.

Battery Leakage Safety

Procedures for contact with battery contents and eye exposure.

Flammable Battery Liquid

Warning about battery liquid flammability.

Battery Pack Tampering Prohibition

Prohibition of opening or damaging battery packs.

Important Safety Instructions for All Battery Chargers

Critical safety warnings for battery chargers.

Charger Safety Warnings

Critical safety warnings for battery chargers.

DEWALT Charger Requirement

Requirement to use only DEWALT chargers for battery packs.

Charger Intended Use

Specifying that chargers are for DEWALT battery packs only.

Charger Environmental Exposure

Warning against exposing chargers to rain or snow.

Charger Liquid Ingress Warning

Prohibition of liquid entering the charger.

Charger Cord Disconnection

Proper method for disconnecting the charger plug.

Charger Cord Safety

Ensuring charger cords are placed safely to avoid damage.

Extension Cord Usage

Guidelines and warnings for using extension cords with chargers.

Outdoor Charger Operation

Requirements for operating chargers outdoors safely.

Extension Cord Wire Gauge

Importance of selecting the correct wire gauge for extension cords.

Minimum Gauge for Cord Sets

Table specifying minimum wire gauge for extension cords based on voltage and length.

Charger Ventilation and Surface

Instructions for charger placement to ensure proper ventilation.

Damaged Charger Cord Warning

Warning against operating chargers with damaged cords or plugs.

Damaged Charger Operation

Prohibition of operating damaged chargers.

Charger Servicing and Repair

Guidelines for charger servicing and repair.

Charger Voltage Compatibility

Information on the charger's voltage compatibility.

Charger Cavity and Vent Slot Safety

Keeping conductive materials away from charger cavities and vents.

Unplugging Charger When Not in Use

Instruction to unplug the charger when no battery is inserted.

Charging a Battery

Step-by-step instructions for charging a battery pack.

Step 1: Plug in Charger

First step in charging: plugging the charger into an outlet.

Step 2: Insert Battery Pack

Second step: inserting the battery pack for charging.

Charging Completion Indicator

Indicator for when the battery pack charging is complete.

Faulty Battery Pack Detection

How the charger indicates a faulty battery pack.

Charging Light Patterns

Information on interpreting charging light patterns.

Battery Pack Removal Method

How to remove the battery pack from the charger.

Storage Recommendations

Optimal Storage Conditions

Recommendations for storing battery packs in cool, dry locations.

Battery Pack Cleaning Instructions

Fuel Gauge Battery Packs

Transportation

Battery Transportation Fire Hazard

Warning about fire hazards when transporting battery packs.

Shipping the DEWALT FLEXVOLT Battery Pack

FLEXVOLT Battery Pack Shipping Cap

Instructions on using the battery cap for shipping FLEXVOLT packs.

RBRC Seal and Recycling

Battery Pack Recycling

Information on recycling spent battery packs through authorized centers.

Hot/Cold Pack Delay

Hot/Cold Pack Delay Function

Explanation of the charger's delay feature for temperature extremes.

Cold Battery Pack Charging Rate

Note on slower charging rates for cold battery packs.

Hot/Cold Pack Delay Indicator

How the charger indicates the hot/cold pack delay status.

DCB118 and DCB1112 Chargers

Electronic Protection System

Li-Ion Tool Protection Features

Explanation of the electronic system protecting Li-Ion tools.

Important Charging Notes

Charger and Battery Pack Warmth

Normal warmth of charger and battery pack during charging.

Battery Pack Charging Troubleshooting

Troubleshooting steps for battery pack charging issues.

Partial Charge Charging

Charger Cleaning Instructions

Wall Mounting

Charger Wall Mounting Guidelines

Instructions for wall mounting DEWALT chargers.

Assembly and Adjustments

Safety Precautions for Assembly

Safety measures before making adjustments or installing accessories.

Quick-Release Chuck Operation

Instructions for using the quick-release chuck for accessories.

Accessory Installation and Removal

Steps for installing and removing accessories from the chuck.

Operation

Safety During Operation

General safety precautions to take during tool operation.

Installing and Removing the Battery Pack

Step-by-step guide for battery pack installation and removal.

Proper Hand Position

Recommended hand grip and positioning for safe operation.

Variable Speed Trigger and Direction Control

Explanation of trigger speed control and forward/reverse button.

Worklight Functionality

Details on the tool's integrated worklight.

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