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Master-force 241-0303 Operator's Manual

12.0-volt lithium-ion impact driver
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Operator's Manual
12.0-Volt Lithium-Ion Impact Driver
241-0303
IMPORTANT :
WARNING! To reduce the risk of injury, user must read instruction manual.
Safety symbols in this manual are used to flag possible dangers. The safety
symbols and their explanations require the operator's full understanding. The
safety warnings do not, by themselves, eliminate any danger, and they are not
a substitute for proper accident prevention measures.
This Safety Alert Symbol indicates caution, warning, or danger. Failure to
obey a safety warning can result in serious injury to yourself or others. To reduce
the risk of injury, fire, or electric shock, always follow the safety precautions.
CHARGE BATTERY
BEFORE FIRST USE

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Summary of Contents for Master-force 241-0303

  • Page 1 Operator’s Manual 12.0-Volt Lithium-Ion Impact Driver 241-0303 CHARGE BATTERY BEFORE FIRST USE IMPORTANT : WARNING! To reduce the risk of injury, user must read instruction manual. Safety symbols in this manual are used to flag possible dangers. The safety symbols and their explanations require the operator’s full understanding. The safety warnings do not, by themselves, eliminate any danger, and they are not a substitute for proper accident prevention measures.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Safety Symbols ....................Page 3 Safety Instructions..................Page 5 Description ...................... Page 10 Assembly ......................Page 11 Operation ......................Page 12 Maintenance....................Page 17 Troubleshooting ....................Page 18 Warranty ......................Page 19 INTRODUCTION SAVE THESE INSTRUCTIONS! This cordless Impact Driver has many features for making its use more pleasant and enjoyable.

  • Page 3: Safety Symbols

    SAFETY SYMBOLS The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols and the explanations with them deserve your careful attention and understanding. The symbol warnings do not, by themselves, eliminate any danger. The instructions and warnings they give are no substitutes for proper accident prevention measures.
  • Page 4 SAVE THESE INSTRUCTIONS Some of these 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 safely. Volts Voltage Amperes Current Hertz Frequency (cycles per second)

  • Page 5: Safety Instructions

    SAFETY INSTRUCTIONS GENRAL SAFETY RULES WARNING: Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire and / or seri- ous 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.
  • Page 6 PERSONAL SAFETY Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use tool while 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.
  • Page 7 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, tool bits, etc. in accordance with these instructions, taking into account the working conditions and the work to be performed.
  • Page 8 Do not operate the tool at full-load for more than 30 seconds, as this can cause the motor to become too hot, which may damage the motor. Release the trigger immediately when the screws are tightened to avoid breaking the screw. For best results, your battery should be charged in a location where the temperature is more that 50°F (10°C)but less that 104°F(40°C).
  • Page 9 An extension cord should not be used unless absolutely necessary. Use of an improper extension cord could result in a risk of fire and electric shock. If an extension cord must be used, make sure that: The pins on plug of extension cord are the same number, size and shape as those of the plug on charger.

  • Page 10: Description

    DESCRIPTION kNOW YOUR IMPACT DRIVER (Fig.1) Fig. 1 Chuck Vents Sleeve LED Worklight Direction-of- Rotation Selector Variable-Speed (Forward/Center Trigger Switch Lock/ Reverse) Battery pack PRODUCT SPECIFICATIONS Motor 12 Volt DC Switch VSR (Variable Speed Reversible) No Load Speed 0-2200 RPM Impacts per minute 0-2700 BPM Torque...

  • Page 11: Assembly

    VARIABLE SPEED The variable-speed trigger switch delivers higher speed with increased pressure and lower speed with decreased trigger pressure. FORWARD/CENTER LOCk/REVERSE The direction-of-rotation selector located above the trigger switch changes the direction of bit rotation. Setting the trigger switch in the OFF (center lock) position helps to reduce the possibility of accidental starting.

  • Page 12: Operation

    OPERATION BATTERY PROTECTION The battery circuitry protects the battery pack from extreme temperature, over discharge, and over-charge. To protect the battery from damage and prolong its life, the battery pack circuitry will turn off the battery pack if it becomes overloaded or if the temperature becomes too high during use. This may happen in extremely high torque, binding, and stalling situations.
  • Page 13 5. The charger will communicate with the battery pack to evaluate the condition of the battery pack. 6. The green LED lights on the charger will flash while the battery pack is charging. After charging is complete, the green LED will be on. The flickering red light indicates a defective battery or a bad connection between the battery and the charger.
  • Page 14 3. If a different battery pack also indicates “defective,” the charger may be defective. BATTERY CHARGING If the battery pack is being charged within a normal surrounding temperature range (50 °F to 104°F), the green LED will begin flashing and the red LED will be off.
  • Page 15 TRIGGER SWITCH (Fig. 5a) Fig. 5a To turn the impact driver ON, depress the trigger switch. To turn it OFF, release the trigger switch. VARIABLE SPEED (Fig.5a) Variable Direction The variable-speed trigger switch speed of rotation delivers higher speed with increased trigger selector trigger pressure and lower speed...
  • Page 16 LED WORkLIGHT (Fig. 6) Fig. 6 The LED worklight, located on the front of the Impact Driver, will illuminate when the trigger switch is depressed. This provides additional light on the surface of the workpiece for operation in lower-light areas. The LED worklight will turn off when the trigger switch is released.

  • Page 17: Maintenance

    NOTE: This driver is equipped with an electric brake. When the brake is functioning properly, sparks may be visible through the vent slots in the housing. This is normal and is the action of the brake. MAINTENANCE WARNING! To avoid serious personal injury, always remove the battery pack from the tool when cleaning or performing any maintenance.

  • Page 18: Troubleshooting

    BATTERY PACk REMOVAL AND PREPARATION FOR RECYCLING To preserve natural resources, please recycle or dispose of batteries properly. This product contains lithium-ion batteries. Local, state, or federal laws may prohibit disposal of lithium-ion batteries in ordinary trash. Consult your local waste authority for information regarding available recycling and/or disposal options.

  • Page 19: Warranty

    WARRANTY 3-MONTH MONEY BACk GUARANTEE: This MASTERFORCE™ brand power tool carries our 3-Month Money Back Guarantee. If you are not completely satisfied with your MASTERFORCE™ brand power tool for any reason within three (3) months from the date of purchase, return the tool with your original receipt to any retail store, and we will provide you a refund –...