milwaukee 3404-20 1-2 Inch Hammer Drill Driver Instruction Manual

: June 3, 2024
: Milwaukee

Table of Contents

GENERAL POWER TOOL SAFETY WARNINGS
SPECIFICATIONS
FUNCTIONAL DESCRIPTION
ASSEMBLY
OPERATION
APPLICATIONS
MAINTENANCE
ACCESSORIES
Support
LIMITED WARRANTY USA & CANADA
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

milwaukee 3404-20 1-2 Inch Hammer Drill Driver Instruction Manual

WARNING: To reduce the risk of injury, user must read and understand operator’s manual.

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.

WORK AREA SAFETY

Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmo- spheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while oper- ating 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 condi- tions. 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 inter- rupter (GFCI) protected supply. Use of an 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 carry- ing 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 and clothing 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 chil- dren 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, break- age 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, tak- ing 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 desig- nated 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 dam- aged 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 temper- ature 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.

SPECIFIC SAFETY RULES FOR DRILL/DRIVERS, HAMMER DRILLS/DRIVERS, DRIVERS

Safety instructions for all operations

Wear ear protectors when impact drilling. Expo- sure to noise can cause hearing loss.
Hold the power tool by insulated gripping surfaces, when performing an operation where the cutting accessory or fasteners may contact hidden wiring. Cutting accessory or fasteners contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock. Safety instructions when using long drill bits
Never operate at higher speed than the maximum speed rating of the drill bit. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
Always start drilling at low speed and with the bit tip in contact with the workpiece. At higher speeds, the bit is likely to bend if allowed to rotate freely without contacting the workpiece, resulting in personal injury.
Apply pressure only in direct line with the bit and do not apply excessive pressure. Bits can bend causing breakage or loss of control, resulting in personal injury.

WARNING: To reduce the risk of injury in ap- plications that produce a considerable amount of dust, use an OSHA compliant dust extraction solution in accordance with the solution’s operating instructions.

Always use common sense and be cautious when using tools. It is not possible to anticipate every situation that could result in a dangerous outcome. Do not use this tool if you do not understand these operating instructions or you feel the work is beyond your capability; contact Milwaukee Tool or a trained professional for additional information or training.
Maintain labels and nameplates. These carry important information. If unreadable or missing, contact a MILWAUKEE service facility for a free replacement.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paint crystalline silica from bricks and cement and other masonry products, and 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.

SPECIFICATIONS

Cat. No: 3403-20, 3404-20
Volts: 12 DC
Battery Type: M12™
Charger Type: M12™
No Load RPM: LO 0 – 450 HI 0 – 1550
No Load BPM (3404-20 only): LO 0 – 6750 HI 0 – 22,500

Capacities

Steel: 1/2″

Wood

Flat Bit 1-1/4″
Auger Bit: 1″
Hole Saw: 2″
Screws (dia.): 1/2″
Masonary (3404-20 only): 3/8″

Recommended Ambient

Operating Temperature: 0°F to 125°F

FUNCTIONAL DESCRIPTION

Product Descriptions

Keyless chuck
Torque selector collar
Speed selector
Belt hook
Fuel gauge
Handle
Trigger
Control Switch
LED

SYMBOLOGY

Volts
Direct Current
No Load Revolutions per Minute (RPM)
Blows per Minute Under Load (BPM)
UL Listing for Canada and U.S.

ASSEMBLY

WARNING:
Recharge only with the charger specified for the battery. For specific charging instructions, read the operator’s manual supplied with your charger and battery.

Removing/Inserting the Battery
To remove the battery, push in the release buttons and pull the battery pack away from the tool.

WARNING: Always lock the trigger or remove the battery pack any time the tool is not in use. To insert the battery, slide the pack into the body of the tool. Make sure it latches securely into place.

WARNING: Only use accessories specifically recommended for this tool. Others may be hazardous.

OPERATION

WARNING: Always remove battery pack before changing or removing accessories. Only use accessories specifically recommended for this tool. Others may be hazardous. To reduce the risk of injury, always wear proper eye protection marked to comply with ANSI Z87.1. When working in dusty situations, wear appropriate respiratory protection or use an OSHA compliant dust extraction solution.

Fuel Gauge

To determine the amount of charge left in the battery, turn the tool ON. The Fuel Gauge will light up for 2-3 seconds. When less than 10% of charge is left, 1 light on the fuel gauge will flash 4 times. To signal the end of charge, 1 light on the fuel gauge will flash 8 times and the tool will not run. Charge the battery pack.
If the battery becomes too hot, the fuel gauge lights will flash and the tool will not run. Allow the battery to cool down.

Installing/Removing Bits

Always remove the battery before inserting or removing bits. Select the proper style and size bit for the job. This tool is equipped with a spindle lock. The chuck can be tightened with one hand, creating higher grip strengths on the bit.

To open the chuck jaws, turn the collar in the counterclockwise direction. When using drill bits, allow the bit to strike the bottom of the chuck. Center the bit in the chuck jaws and lift it about 1/16″ off of the bottom. When using screwdriver bits, insert the bit far enough for the chuck jaws to grip the hex of the bit.
To close the chuck jaws, turn the sleeve in the clockwise direction. The bit is secure when the chuck makes a ratcheting sound and the sleeve can not be rotated any further.
To remove the bit, turn the collar in the counter- clockwise direction.

NOTE: A ratcheting sound may be heard when the chuck is opened or closed. This noise is part of the locking feature, and does not indicate a problem with the chuck’s operation.

Selecting Drill or Drive Action
(Cat. No. 3403-20)

To use the drilling mode, rotate the torque selector collar until the drill symbol appears in line with the arrow.
To use the driving mode, rotate the torque selector collar until the desired clutch setting appears in line with the arrow.
The adjustable clutch, when properly adjusted, will slip at a preset torque to prevent driving the screw too deep into different materials and to prevent damage to the screw or tool.

Selecting Hammer, Drill or Drive Action
(Cat. No. 3404-20)

To use the hammer-drilling mode, rotate the torque selector collar until the hammer symbol appears in line with the arrow. Apply pressure to the bit to engage the hammering mechanism.
NOTE: When using carbide bits, do not use water to settle dust. Do not attempt to drill through steel reinforcing rods. This will damage the carbide bits.
To use the drilling only mode, rotate the torque selector collar until the drill symbol appears in line with the arrow.
To use the driving screws mode, rotate torque selector collar until the desired clutch setting appears in line with the arrow.

The adjustable clutch, when properly adjusted, will slip at a preset torque to prevent driving the screw too deep into different materials and to prevent damage to the screw or tool.
The torque specifications shown here are approximate values obtained with a fully charged battery pack.

TORQUE SPECIFICATIONS

Clutch Setting| Estimated Torque (in. lbs)|

Applications

1-3| 10-16| Small cabinet screws
4-6| 19-25| Medium cabinet screws Fine thread drywall screws
7-10| 28-34| Large cabinet screws Coarse thread drywall screws
11-13| 37-45| Deck screws

NOTE: In hard joint applications, clutch setting torque values may be higher than listed. When possible, perform a test run to determine the proper clutch setting for your application.

Selecting Speed
The speed selector is on top of the motor housing. Allow the tool to come to a complete stop before changing speeds. See “Applications” for recom- mended speeds under various conditions.

For Low speed, push the speed selector to display “1”.
For High speed, push the speed selector to display “2”.

Using the Control Switch
The control switch may be set to three positions: forward, reverse and lock. Due to a lockout mecha- nism, the control switch can only be adjusted when the ON/OFF switch is not pressed. Always allow the motor to come to a complete stop before using the control switch.

For forward (clockwise) rotation, push in the control switch from the right side of the tool. Check the direction of rotation before use.
For reverse (counterclockwise) rotation, push in the control switch from the left side of the tool.
Check direction of rotation before use.
To lock the trigger, push the control switch to the center position. The trigger will not work while the control switch is in the center locked position. Always remove the battery pack before performing maintenance or changing accessories. Always lock the trigger or remove the battery pack before storing the tool and any time the tool is not in use.

Starting, Stopping and Controlling Speed

To start the tool, grasp the handle firmly and pull the trigger.
NOTE: An LED is turned on when the trigger is pulled and will go off shortly after the trigger is released.
To vary the speed, increase or decrease the pres- sure on the trigger. The further the trigger is pulled,the greater the speed.
To stop the tool, release the trigger. Make sure the bit comes to a complete stop before laying the tool down.

Battery Pack Protection

To protect the battery from damage and extend its life, the tool’s intelligent circuit monitors current draw, temperature, and voltage drops.
In extremely high torque, binding, stalling, and short circuit situations that cause high current draw, the fuel gauge will flash, and then the tool will turn OFF.
To reset, release the trigger.
Under extreme circumstances, the internal temperature of the battery could become too high. If this happens, the fuel gauge will flash and the battery pack will shut off. Let the battery pack cool and then continue work.

APPLICATIONS

WARNING: To reduce the risk of electric shock, check work area for hidden pipes and wires before drilling or driving screws.

Drilling in Wood, Composition Materials and Plastic

When drilling in wood, composition materials and plastic, select the drill- only operating mode. Start the drill slowly, gradually increasing speed as you drill. When drilling into wood, use wood augers or twist drill bits. Always use sharp bits. When using twist drill bits, pull the bit out of the hole frequently to clear chips from the bit flutes. To reduce the chance of splintering, back work with a piece of scrap wood. Se- lect low speeds for plastics with a low melting point.

Drilling in Metal
When drilling in metal, select the drill-only operating mode. Use high speed steel twist drills or hole saws. Use a center punch to start the hole. Lubricate drill bits with cutting oil when drilling in iron or steel. Use a coolant when drilling in nonferrous metals such as copper, brass or aluminum. Back the material to prevent binding and distortion on breakthrough.

Drilling in Masonry
When drilling in masonry, select the hammer drill operating mode. Use high speed carbide-tipped bits. Drilling soft masonry materials such as cinder block requires little pressure. Hard materials like concrete require more pressure. A smooth, even flow of dust indicates the proper drilling rate. Do not let the bit spin in the hole without cutting. Do not use water to settle dust or to cool bit. Both actions will damage the carbide.

Driving Screws and Nut Running
Drill a pilot hole when driving screws into thick or hard materials. Set the torque selector collar to the proper position and set the speed to low. Use the proper style and size screwdriver bit for the type of screw you are using. With the screwdriver bit in the screw, place the tip of the screw on the workpiece and apply firm pressure before pulling the trigger. Screws can be removed by reversing the motor.

Overloading
Continuous overloading may cause permanent damage to tool or battery pack.

MAINTENANCE

WARNING: To reduce the risk of injury, always unplug the charger and remove the battery pack from the charger or tool before perform- ing any maintenance. Never disassemble the tool, battery pack or charger. Contact a MILWAUKEE service facility for ALL repairs.

Maintaining Tool
Keep your tool, battery pack and charger in good repair by adopting a regular maintenance program. Inspect your tool for issues such as undue noise, misalignment or binding of moving parts, breakage of parts, or any other condition that may affect the tool operation. Return the tool, battery pack, and charger to a MILWAUKEE service facility for repair. After six months to one year, depending on use, return the tool, battery pack and charger to a MILWAUKEE service facility for inspection.
If the tool does not start or operate at full power with a fully charged battery pack, clean the contacts on the battery pack. If the tool still does not work prop- erly, return the tool, charger and battery pack, to a MILWAUKEE service facility for repairs.

WARNING: To reduce the risk of personal injury and damage, never immerse your tool, battery pack or charger in liquid or allow a liquid to flow inside them.

Cleaning
Clean dust and debris from any vents. Keep tool clean, dry and free of oil or grease. Use only mild soap and a damp cloth to clean, since certain clean- ing agents and solvents are harmful to plastics and other insulated parts. Some of these include gasoline, turpentine, lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia and household deter- gents containing ammonia. Never use flammable or combustible solvents around tools.

Repairs
For repairs, return the tool, battery pack and charger to the nearest authorized service center.

ACCESSORIES

WARNING: Use only recommended accessories. Others may be hazardous.

For a complete listing of accessories, go online to www.milwaukeetool.com or contact a distributor.

Support

SERVICE – UNITED STATES

1-800-SAWDUST (1.800.729.3878)
Monday-Friday, 7:00 AM – 6:30 PM CST or visit www.milwaukeetool.com

Contact Corporate After Sales Service Technical Support with technical, service/repair, or warranty questions.
Email: metproductsupport@milwaukeetool.com
Become a Heavy Duty Club Member at www.milwaukeetool.com to receive important notifications regarding your tool purchases.

SERVICE – CANADA

Milwaukee Tool (Canada) Ltd 1.877.948.2360
Monday-Friday, 7:00 AM – 4:30 PM CST or visit www.milwaukeetool.ca

LIMITED WARRANTY USA & CANADA

This MILWAUKEE power tool is warranted to the original purchaser from an authorized MILWAUKEE distributor only to be free from defects in material and workmanship. Subject to certain exceptions, MILWAUKEE will repair or replace any part on this power tool which, after examination, is determined by MILWAUKEE to be defective in material or workmanship for a period of five (5) years after the date of purchase unless otherwise noted. Return of the power tool to a MILWAUKEE factory Service Center location or MILWAUKEE Authorized Service Station, freight prepaid and insured, is required. A copy of the proof of purchase should be included with the return product. This warranty does not apply to damage that MILWAUKEE determines to be from repairs made or attempted by anyone other than MILWAUKEE authorized personnel, misuse, alterations, abuse, normal wear and tear, lack of maintenance, or accidents.
Normal Wear: Many power tools need periodic parts replacement and service to achieve best performance. This warranty does not cover repair when normal use has exhausted the life of a part including, but not limited to, chucks, brushes, cords, saw shoes, blade clamps, o-rings, seals, bumpers, driver blades, pistons, strikers, lifters, and bumper cover washers. This warranty does not cover battery packs or all power tools. Refer to the separate and distinct warranties available for those products. The warranty period for the LED in the LED Work Light (49-24-0171) and the LED Upgrade Bulb (49-81-0090) is the lifetime of the product subject to the limitations above. If during normal use the LED or LED Upgrade Bulb fails, the part will be replaced free of charge. Warranty Registration is not necessary to obtain the applicable warranty on a MILWAUKEE power tool product. The manufacturing date of the product will be used to determine the warranty period if no proof of purchase is provided at the time warranty service is requested.
ACCEPTANCE OF THE EXCLUSIVE REPAIR AND REPLACEMENT REMEDIES DESCRIBED HEREIN IS A CONDITION OF THE CONTRACT FOR THE PURCHASE OF EVERY MILWAUKEE PRODUCT. IF YOU DO NOT AGREE TO THIS CONDITION, YOU SHOULD NOT PURCHASE THE PRODUCT. IN NO EVENT SHALL MILWAUKEE BE LIABLE FOR ANY INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR ANY COSTS, ATTORNEY FEES, EXPENSES, LOSSES OR DELAYS ALLEGED TO BE AS A CONSEQUENCE OF ANY DAMAGE TO, FAILURE OF, OR DEFECT IN ANY PRODUCT INCLUDING, BUT NOT LIMITED TO, ANY CLAIMS FOR LOSS OF PROFITS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY IS EXCLUSIVE AND IN LI OF ALL OTHER EXPRESS WARRANTIES, WRITTEN OR ORAL. TO THE EXTENT PERMITTED BY LAW, MILWAUKEE DISCLAIMS ANY IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE; TO THE EXTENT SUCH DISCLAIMER IS NOT PERMITTED BY LAW, SUCH IMPLIED WARRANTIES ARE LIMITED TO THE DURATION OF THE APPLICABLE EXPRESS WARRANTY AS DESCRIBED ABOVE. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU, THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
This warranty applies to product sold in the U.S.A. and Canada only. Please consult the ‘Service Center Search’ in the Parts & Service sec- tion of MILWAUKEE’s website www.milwaukeetool.com or call 1.800. SAWDUST (1.800.729.3878) to locate your nearest service facilityfor warranty and non- warranty service on a MILWAUKEE power tool.