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SKU 45338 Page 7 SYMBOLOGY Table B UNPACKING When unpacking, check to make sure that all the parts are included. See Figure C. Also refer to the Assembly section, and the Assembly Drawing and Parts List at the end of this manual. Figure C Depth Gauge (502) If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this manual as soon as possible. Auxiliary Handle (501) Chuck (2) Chuck Key (3) SKU 45338 Page 8 ASSEMBLY INSTRUCTIONS 1. Insert the Auxiliary Handle (501) over the Housing (29) until it rests behind the Chuck (2). When required for exact depth drilling, insert the Depth Gauge (502) into the Auxiliary Handle clamp. See Figure D below. 2. Turn the Forward Handle for left or right-handed use, then securely tighten the wing nut until Auxiliary Handle cannot move. Figure D Housing (29) Auxiliary Handle (501) Chuck (2) Depth Gauge (502) Wing Nut OPERATING INSTRUCTIONS Inserting and Removing Drill and Hammer Bits The Hammer Drill is equipped with a keyed Chuck (2). Follow these steps to insert a bit. 1. Insert the Chuck Key (3) into the Chuck (2) and turn counterclockwise to open the mouth of the Chuck. 2. Insert the hammer bit or the drill bit (not supplied) all the way into the Chuck. 3. Turn the Chuck Key clockwise to tighten the Chuck on the bit. Drill Operation 1. Plug the Line Cord into an electrical outlet. 2. Press the Forward/Reverse Switch to correct position for the current job. See Figure E on the next page. Right position: drill or fasten (clockwise). Left position: removing fasteners or freeing bits (counterclockwise). SKU 45338 Page 9 Figure E Forward/Reverse Switch Variable Speed Screw Trigger Switch (24) Switch On Locking Button Figure E Forward/Reverse Switch Variable Speed Screw Trigger Switch (24) Switch On Locking Button 3. Adjust the Variable Speed Screw for the desired (maximum) speed action when the Switch is pressed. 4. For precision depth drilling, loosen the Wing Nut securing the Auxiliary Handle (501), and slide the Depth Gauge (502) down, gauging the depth from the bit tip. Retighten the Wing Nut again. 5. Verify that the bit is securely locked in the Chuck (2). 6. On the top of the Hammer Drill, push the Gear Setting Control to select plain drilling or hammer drilling. A symbol for a drill bit indicates plain drilling is selected. If a hammer is shown, it is set for hammer drilling. See Figure F below. Figure F Gear Setting Control Top View Note: While using the Hammer Drill, always use both hands. 7. Press (and hold) the trigger Switch (24) to turn the drill on. This Switch varies the speed depending on how far in it is pressed. 8. Optionally, after pressing in the trigger Switch, you can press the Switch On Locking Button to keep the drill running without keeping your finger on the trigger Switch (24). Use this function when drilling soft materials only. Press the trigger Switch again to turn it off. 9. When you are finished drilling, release the trigger Switch to turn the Hammer Drill off. Caution: Do not drill or hammer hard, brittle materials such as steel or concrete with the Switch On Locking Button pressed in (ON). If the drill bit catches on the material, the high torque of the drill will cause the tool body to twist around without stopping. This violent action could cause injuries to your hands and arms. It could also damage the Hammer Drill. SKU 45338 Page 10 G Caution! Make sure the Power Switch of the Hammer Drill is in its “OFF” position and that the tool is unplugged from its electrical outlet before performing any inspection, maintenance, or cleaning procedures. 1. Before each use, inspect the general condition of the Hammer Drill. Check for loose screws, misalignment or binding of moving parts, cracked or broken parts, damaged electrical wiring, and any other condition that may affect its safe operation. If abnormal noise or vibration occurs, have the problem corrected before further use. Do not use damaged equipment. 2. Periodically recheck all nuts, bolts, and screws for tightness. 3. Keep clean by wiping with a clean, damp cloth. Never use caustic agents to clean plastic parts. 4. Store in a clean and dry location when not in use. 5. Periodically, using a rag and light oil, wipe drill bits and other steel parts of the drill to keep them from rusting. 6. Periodically blow out the motor air vents of dust and debris using compressed air. 7. Over time, if the performance of the tool diminishes, or it stops working completely, it may be necessary to replace the motor’s Carbon Brush (21). If the Carbon Brush is only dirty, it can be cleaned with an ink eraser and replaced again. Replacing or cleaning Carbon Brushes must be completed by a qualified service technician. PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR ...