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DEMOLITION HAMMER
Model 93853
ASSEMBLY AND OPERATING INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at: http://www.harborfreight.com
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
© ®
Copyright 2006 by Harbor Freight Tools . All rights reserved. No portion of this
manual or any artwork contained herein may be reprod
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PRODUCT SPECIFICATIONS Item Description Electrical Requirements 120 VAC / 60 Hz / 1500 Watts 20 AMPs (Start Up) / 9.5 AMPs (No Load) / 13.0 AMPs (With Load) Power Cord Type: 82” Long / 14AWG x 2C Power Cord Plug Type: 2-Prong / Polarized Power Switch Type: 2-Position Toggle Switch w/Slider Cover Blows Per Minute 900 ~ 1800 BPM (Using Variable Speed Dial) Variable Speed Settings 1-2-3-4-5-6 Handle Types Fixed Main Rear Handle (7” x 4-1/4” x 1-3/8”) Rotating Swivel “D” Style Auxiliary
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2. 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. 3. Keep bystanders, children, and visitors away while operating a power tool. Distractions can cause you to lose control. Protect others in the work area from debris such as chips and sparks. Provide barriers or shields as needed. ELECTRICAL SAFETY 4. Grounded tools must be plugged into an outlet properly installed
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operating a power tool. Do not use a power 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. 11. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts. 12. Avoid accidental starting. Be sure the Power Switch is off before plugging
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maintained tools with a sharp cutting edge are less likely to bind and are easier to control. Do not use a damaged tool. Tag damaged tools “Do not use” until repaired. 22. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the tool’s operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools. 23. Use only accessories that are recommended by the manufacturer for your model. Access
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5. Do not force the Demolition Hammer. This tool will do the work better and safer at the speed and capacity for which it was designed. 6. WARNING! Keep hands, fingers, and feet safety away from the cutting area. 7. Never leave the Demolition Hammer unattended when it is plugged into an electrical outlet. Turn off the tool, and unplug it from its electrical outlet before leaving. 8. Before using the Demolition Hammer, check to make sure the Chisel is properly mounted in the Slider
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17. Do not force the Chisel into the workpiece when cutting. Apply moderate pressure, allowing the Chisel to cut without being forced. 18. Never attempt to remove material stuck in the moving parts of the Demolition Hammer while it is plugged in and running. 19. Always unplug the Demolition Hammer from its electrical outlet before performing and inspection, maintenance, or cleaning procedures. 20. Keep this product and all other tools and equipment away from children and other unauthorized peop
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GROUNDING WARNING! Improperly connecting the grounding wire can result in the risk of electric shock. Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. Do not modify the power cord plug provided with the tool. Never remove the grounding prong from the plug. Do not use the tool if the power cord or plug is damaged. If damaged, have it repaired by a service facility before use. If the plug will not fit the outlet, have a proper outlet instal
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GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS 1. Tools marked with “Grounding Required” have a three wire cord and three prong grounding plug. The plug must be connected to a properly grounded outlet. If the tool should electrically malfunction or break down, grounding provides a low resistance path to carry electricity away from the user, reducing the risk of electric shock. (See Figure B.) 2. The grounding prong in the plug is connected through the green wire inside the cord to the grounding
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5. If you are using one extension cord for more than one tool, add the nameplate amperes and use the sum to determine the required minimum cord size. (See Figure C.) 6. If you are using an extension cord outdoors, make sure it is marked with the suffix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use. 7. Make sure your extension cord is properly wired and in good electrical condition. Always replace a damaged extension cord or have it repaired by a qualified electrician before
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UNPACKING When unpacking, check to make sure all the parts shown on the Parts List on page 16 are included. If any parts are missing or broken, please call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible. PRODUCT FEATURES NOTE: For additional information regarding the parts listed in the following pages, refer to the Assembly Diagrams on page 17. 1. CAUTION! Always make sure the Power Switch (66) of the Demolition Hammer is in its “OFF” position a
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2. Power Switch (66): The Demolition Hammer is switched “ON” by the slide switch located in the rear Handle (62). To turn the tool “ON”, slide the switch to the right. To turn the tool “OFF”, slide the switch to the left. (See Figure E.) 3. Variable Speed Control (72): The Demolition Hammer is equipped with a Variable Speed Control Dial. The impact rate (BPM) and rotating speed (RPM) can be varied according to the type of work being performed by setting the Variable Speed Control Dial to t
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1. Install a Chisel (106, 107) as previously discussed. (See Figure F.) 2. Make sure the Power Switch (66) is in its “OFF” position. Then, connect the Power Cord & Plug (70) to the nearest 120 volt, grounded electrical outlet. (See Figure E.) 3. Grasp the Demolition Hammer firmly by its rear Handle (62) and Auxiliary Handle (104). Then, turn the Power Switch (66) to its “ON” position to begin work. IMPORTANT: This Demolition Hammer requires a short period of time to warm up. Depending on th
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3. To replace the Motor Carbon Brushes: It may become necessary at sometime to replace or clean the two Carbon Brushes (76) when the Motor performance decreases, or stops working completely. The Carbon Brushes are located on each side of the Motor Casing (61). To replace the Carbon Brushes, remove the two Brush Holder Covers (79). Remove the Brush Caps (77). Then, remove the two Carbon Brushes from the two Brush Holders (75). If the Carbon Brushes are both Carbon Brushes. If, however, the
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TROUBLESHOOTING Problem Possible Solution Chisel installs with difficulty. 1. Make sure the Chisel shank, Front Cap, and Slider are free of debris and lightly oiled or greased. (See page 12.) Tool does not run. 1. Make sure the Power Switch is in its “ON” position. (See page 11.) 2. Make sure the Power Cord & Plug is connected to a working 120 volt, grounded electrical outlet. (See page 9.) 3. Make sure the Power Cord & Plug is not damaged. 4. Make sure the tool is fil
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PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT
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ASSEMBLY DIAGRAM * * * * * * * * * * ** SKU 93853 For technical questions, please call 1-800-444-3353 PAGE 17 106: Spade Chisel not shown. NOTE: Some parts are listed and shown for illustration purposes only, 107: Ball Point Chisel not shown. and are not available individually as replacement parts. ** ** **
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WARRANTY CARD LIMITED 1 YEAR/ 90 DAY WARRANTY Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that for a period of ninety days from date of purchase that the motor is free of defects in materials and workmanship. Harbor Freight Tools also warrants to the original purchaser, for a period of one year from date of purchase, that all other par ts and components of the product are free from defe
