Maximum 054-2109-4, Instruction Manual

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

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S

AFETY INS

TRUCTIONS 

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

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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

TE

CHNIC

AL SPE

CIFIC

A

TIONS

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.