Maximum 054-2109-4 User manual

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NOTE: If any parts are missing or damaged, or if you have any
questions, please call our toll-free helpline at 1-888-670-6682.
SAVE THESE INSTRUCTIONS
This manual contains important safety and
operating instructions. Read all instructions and
follow them with use of this product.
TECHNICAL SPECIFICATIONS 4
SAFETY INSTRUCTIONS 5
IMPORTANT INFORMATION 9
SYMBOL 10
PARTS LIST 11
KNOW YOUR TOOL 12
OPERATING INSTRUCTIONS 13
MAINTENANCE 22
WARRANTY 24
TABLE OF CONTENTS
TABLE OF CONTENTS

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model no. 054-2109-4 | contact us 1-800-689-9928
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SAFETY INSTRUCTIONS
MOTOR 18V DC
KEYLESS CHUCK 1/2” (12.7 mm) METAL, single-sleeve
VARIABLE SPEED RANGES 0–450/0–1550 RPM (no load)
HAMMERING 0-7,650/0-26,350 BPM
TORQUE CLUTCH POSITION 21
MAX. TORQUE 500 in-lb
ON BOARD WORK LIGHT LED
BATTERY 20V max* (2.0 Ah) lithium-ion
COMPATIBLE MAXIMUM®BATTERY 054-3203-2 (2.0 Ah); 054-3206-6 (4.0 Ah)
CHARGER 35-minute, diagnostic
COMPATIBLE MAXIMUM®CHARGER 054-3204-0 & 7109-B-2
OPTIMUM CHARGING
TEMPERATURE
4 to 40°C (40 to 104°F)
DIMENSIONS 8 1/8 x 9 x 3 5/32” (206 x 228 x 80 mm)
WEIGHT 3 lb (1.35 kg) without battery
*Maximum battery voltage without workload; with workload nominal voltage is 18V.
TECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
GENERAL POWER TOOL SAFETY WARNINGS
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 atmospheres, 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 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 adaptor 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 Residual
Current Device (RCD) protected supply. Use of an RCD 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.
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.

model no. 054-2109-4 | contact us 1-800-689-9928
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• 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.
• 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 energising 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 jewellery. Keep your hair, clothing
and gloves away from moving parts. Loose clothes, jewellery 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 behaviour 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 130 °C (266ºF) 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 CORDLESS HAMMER DRILL
• Wear ear protectors when impact drilling. Exposure to noise can cause hearing loss.
• Use the auxiliary handle(s). Loss of control can cause personal injury.
• 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 SAFETY INSTRUCTIONS

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attempting to clean it. Only removing the battery pack from the charger will not
reduce this risk.
• DO NOT store or use the tool and battery pack in locations where the
temperature may reach or exceed 50 °C (122 °F), which can lead to deterioration
of the storage battery.
• The charger is designed to operate on standard household electrical power
(120 V AC). Do not attempt to use it on any other voltage.
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.
SAFETY RULES FOR BATTERY PACK AND CHARGER
• If the battery pack casing is cracked or damaged, do not insert into charger. There
is a danger of electric shock or electrocution.
• Don,t allow any liquid to get inside charger. Electric shock may result. To facilitate
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 a trailer that is not insulated.
• This charger is not intended for any uses other than charging rechargeable
batteries. Any other use may result in risk of fire, electric shock or electrocution.
• Do not place any object on top of the charger or place the charger on a soft
surface that may result in excessive internal heat. Do not place the charger near any
heat source.
• To reduce the potential risk of damage to the electric plug and cord, pull by the
plug rather than the cord when disconnecting the charger from the power supply.
• Make sure the cord is located so it will not be stepped on, tripped over, or
otherwise subjected to damage or stress.
• An extension cord should not be used unless absolutely necessary. Use of an
improper extension cord could result in a risk of fire, electric shock or electrocution.
• Do not operate the charger if it has received a sharp blow, been dropped or
otherwise damaged in any way.
• Do not disassemble charger. Take it to a Service Agent when service or repair is
required. Incorrect reassembly may result in a risk of electric shock, electrocution or
fire.
• To prevent the risk of electric shock, unplug the charger from the outlet before
SAFETY INSTRUCTIONS
IMPORTANT INFORMATION

SYMBOL
Some of the following symbols may be used on this tool. Please study them and learn
their meaning. Proper interpretation of these symbols will allow you to operate the tool
better and more safety.
No. Description
V Volts
A Amperes
Hz Hertz
W Watts
n0No-load speed
RPM Revolutions per minute
BPM Beats per minute
Alternating current
Direct current
Ah Ampere-hours
Li-ion Lithium-ion battery
Ø Diameter
BFP Backfeed protection
Safety alert symbol
To reduce the risk of injury, user must read operator’s
manual.
Always wear eye protection.
Contains lithium-ion battery.
Battery must be recycled or disposed of properly.
Conforms to bear the ETL mark and complies with rel-
evant industry standards.
SYMBOL
model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928

model no. 054-2109-4 | contact us 1-800-689-9928