20 Volt Lithium-Ion Hammer Drill 241-0413 OPERATOR’S MANUAL CAUTION: To Reduce The Risk Of Injury, User Must Read And Understand The Operator’s Manual. Save These Instructions For Future Reference. For questions / comments, technical assistance or repair parts – Please Call Toll Free: 1-866-917-4374. (M-F 8am – 6pm EST.
table of contents Safety Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2 Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3 Overview/Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
safety symbols 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.
safety INSTRUCTIONS 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.
safety INSTRUCTIONS WARNING: Read all safety warnings and instructions! Failure to follow the warnings and instructions 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. WARNING: Risk of fire and electric shock. Dry location use only. Do not expose to rain. Risk of injury. Work area safety 1.
safety INSTRUCTIONS 6. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts. 7. If devices are provided for the connection of dust extraction and collection facilities, ensure that these are connected and properly used. Use of these devices can reduce dust-related hazards. 6. Keep cutting tools sharp and clean.
safety INSTRUCTIONS SPECIFIC SAFETY RULES FOR CORDLESS HAMMER DRILL 1. Use only with the batteries and charger listed below. Battery pack Charger 252-8024 252-8028 252-8032 252-8033 252-8029 252-8036 252-8037 2. Hold power tools by their insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will also make exposed metal parts of the tool “live” and shock the operator. 3.
overview Hammer/screw/drill mode selection ring Two-speed gearbox switch Torque adjustment ring Ratcheting keyless chuck Auxiliary handle Trigger switch LED worklight Battery release button Power display button Battery pack Power display Specifications Motor 20 Volt DC Switch VSR (Variable Speed Reversible) No-load speed LO: 0-300 RPM / HI: 0-1300 RPM Hammer LO: 0-3900 BPM / HI: 0-16900 BPM Clutch 24 position Chuck 1/2” (13mm), ratcheting, single-sleeve keyless Max torque Hammer Drill wei
Specifications WARNING: The safe use of this product requires an understanding of the information included on the tool and in this operator’s manual, as well as knowledge of the project you are attempting. Before using this product, familiarize yourself with all operating features and safety rules. Adjustable Torque The hammer drill has 24 screw-driving positions. Forward/Center Lock/Reverse The direction-of-rotation selector located above the trigger switch changes the direction of the bit rotation.
OPERATION TO ATTACH BATTERY PACK (Fig. 1) FIG. 1 2. Depress the battery release buttons located on the front of the battery pack to release the battery pack. 3. Pull forward on the battery pack to remove it from the tool. USING THE AUXILIARY HANDLE ASSEMBLY WARNING: To reduce the risk of injury, always use the auxiliary handle when operating, hold the tool with both hands to maximize control. CH DETA H ATTAC 1.
OPERATION VARIABLE SPEED (FIG. 2a) The variable-speed trigger switch delivers higher speed with increased trigger pressure and lower speed with decreased trigger pressure. DIRECTION-OF-ROTATION SELECTOR (FORWARD/CENTER LOCK/ REVERSE) (FIG. 2b) FIG. 2b CAUTION: To prevent gear damage, always allow the chuck to come to a complete stop before changing the direction of rotation. NOTICE: The hammer drill will not run unless the direction of rotation selector is engaged fully to the left or right.
OPERATION The hammer drill has a keyless chuck to tighten or release the drill bits in the chuck jaws. The arrows on the chuck indicate which direction to rotate the chuck body in order to GRIP (tighten) or OPEN (release) the chuck jaws on the drill bit. The ratcheting feature is designed to prevent the chuck from opening during operation. TWO-SPEED GEAR BOX (FIG. 4) FIG. 4 HI speed is better for drilling wood and wood composites and for using abrasive and polishing accessories.
OPERATION Screwdriving Rotate the mode selection ring so the screw symbol is aligned with the arrow. Set the torque adjustment ring to the appropriate number setting for the torque desired. Drilling NOTICE: When the mode selection ring is in the drill or hammer drill mode, the clutch will not slip, regardless of the position of the torque adjustment ring. Rotate the mode selection ring so the drill symbol is aligned with the arrow. NOTICE: The torque adjustment ring may be set on any number.
OPERATION LED WORKLIGHT (Fig. 7) FIG. 8b FIG. 7 LED worklight The LED worklight, located on the base of the hammer drill, will illuminate when the trigger switch is depressed. The LED worklight will turn off when the trigger switch is released. This provides additional light on the surface of the workpiece for operation in lower-light areas. INSTALLING BITS (Fig. 8a, 8b) FIG. 8a OPEN Keyless chuck (Release) 2.
OPERATION NOTICE: Rotate the chuck body in the direction of the arrow marked OPEN to close the chuck jaws. Do not use a wrench to tighten or loosen the chuck jaws. 3. Remove the drill bit. GENERAL DRILLING (Fig. 9) FIG. 9 7. When drilling metals, use light oil on the drill bit to keep it from overheating. The oil will prolong the life of the bit and increase the drilling action. 8. If the bit jams in the workpiece or if the hammer drill stalls, stop the tool immediately.
OPERATION 5. Keep the motor running when pulling the bit back out of the drilled hole. This will prevent jamming. HAMMER DRILLING MODE OPERATION WARNING: Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust. If the operation is dusty, also wear a dust mask. SCREWDRIVER OPERATION 1. When hammer drilling, use just enough force on the hammer to keep it from bouncing excessively.
maintenance CHUCK REMOVAL (Fig. 10) FIG. 10 Mallet 2. Open the chuck jaws. Using a screwdriver, remove the chuck screw by turning it in a clockwise direction. 3. Insert a 5/16-in. or larger hex key into the chuck of the hammer drill and tighten the chuck jaws securely. 4. Tap the hex key sharply with a mallet in a anti-clockwise direction. This will loosen the chuck for easy removal. 5. Attach a new chuck to the spindle and tighten the chuck screw.
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20 Volt Lithium-Ion Hammer Drill WARRANTY 90-DAY MONEY BACK GUARANTEE: This MASTERFORCE® brand power tool carries our 90-DAY Money Back Guarantee. If you are not completely satisfied with your MASTERFORCE® brand power tool for any reason within ninety (90) days from the date of purchase, return the tool with your original receipt to any MENARDS® retail store, and we will provide you a refund – no questions asked.
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