Harbor Freight Tools 3670 Drill User Manual
Contents
1. after handling California Health amp 4 Safety Code 25249 5 et seq The warnings precautions and 5 instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur 6 It must be understood by the operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator For technical questions please call 1 800 444 3353 Vibration Safety This tool vibrates during use Repeated or long term exposure to vibration may cause temporary or permanent physical injury particularly to the hands arms and shoulders To reduce the risk of vibration related injury Anyone using vibrating tools regularly or for an extended period should first be examined by a doctor and then have regular medical check ups to ensure medical problems are not being caused or worsened from use Pregnant women or people who have impaired blood circulation to the hand past hand injuries nervous system disorders diabetes or Raynaud s Disease should not use this tool If you feel any symptoms related to vibration such as tingling numbness and white or blue fingers seek medical advice as soon as possible Do not smoke during use Nicotine reduces the blood supply to the hands and fingers increasing the risk of vibration related injury Wear suitable gloves to reduce the vibration effects on the user Use tools with th2. extension cords with inadequately sized wire causes a aao serious drop in voltage resulting in loss LI 18 14 12 to of power and possible tool damage 121 160 14 12 10 See Table A 161 200 12 10 Based on limiting the line volt The smaller the gauge number of the TABLE A age drop to five volts at 150 of wire the greater the capacity of the cord th ratedamperes For example a 14 gauge cord can carry a higher current than a 16 gauge cord Gumbalanu Symbology See Table A When using more than one extension cord to make up the total length make sure each cord contains at least the minimum wire size required See Table 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 Table A you are using an extension cord RPM outdoors make sure it is marked with the suffix W A W in Canada to indicate it is acceptable for outdoor use Make sure the 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 using it Protect the extension cords from sharp objects excessive heat and damp or wet areas SKU 3670 For technical questions please call 1 800 444 3353 Page 7 SPECIFICATIONS Electrical Input 120 V 60Hz2 3 1A Motor Speed 0 3000 Variable Re
3. to bend or break cause undue strain on the tool and may damage the bit or work piece Pressing too hard may stall the motor 3 WARNING If motor stalls release Trigger immediately to prevent damage to the tool 4 Always drill in a straight line using built in level as a guide Bending or twisting bit while drilling may cause the bit to Rev 10g For technical questions please call 1 800 444 3353 Page 9 bend or break and may damage the work piece Back off your pressure when you are about to penetrate the work piece Keep the motor running when pulling the bit out of a completed hole to prevent the bit from jamming Metal Drilling Use high speed steel carbide or specialty bits for metal drilling Secure the work piece to keep it from moving during the drilling operation Use a punch to create a dimple for the bit to start Start by drilling slowly to keep bit from moving away from your starting point As the hole is established increase tool speed Do not go so fast or use so much pressure that the bit heats up This can damage the bit and create an irregular hole For hard metal or thick pieces use cutting oil to keep the bit cool Since drilling in metal is a slow operation you may lock the Trigger in the ON position to maintain a constant speed and reduce fatigue When drilling large holes in metal start by drilling a smaller pilot hole then using a larger bit for the final size hole Woo
4. NICIANS AND NOT BY THE BUYER THE BUYERASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO PARTS LIST Description Qty 6 Spinde 1 8 Bearing 201 9 Gear y j Armature Record Product s Serial Number Here Part Qty 6 Torque Adjusting Knob Trigger i Note If product has no serial number record month and year of purchase instead Note Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts SKU 3670 For technical questions please call 1 800 444 3353 Page 12 ASSEMBLY DIAGRAM SKU 3670 For technical questions please call 1 800 444 3353 Page 13 LIMITED 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 this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities criminal activity improper installation normal wear and tear or to lack of maintenance We shall in no event be liable for death injuries to persons or property or for incide
5. an replace brushes damaged rattling brushes or bearings for example Overheating Forcing tool to work too fast 1 Allow tool to work at its own rate Accessory misaligned 2 Check and correct accessory to fence and or table alignment Accessory dull or damaged 3 Keep cutting accessories sharp Replace as needed Blocked motor housing vents 4 Wear ANSI approved safety goggles and NIOSH approved dust mask respirator while blowing dust out of motor using compressed air Motor being strained by long or Eliminate use of extension cord If an extension small diameter extension cord cord is needed use one with the proper diameter for its length and load See Extension Cords in GROUNDING section Follow all safety precautions whenever diagnosing or servicing the tool Disconnect power supply before service SKU 3670 For technical questions please call 1 800 444 3353 Page 11 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 MAKE ANY REPAIRS TO THE PRODUCT OR 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 TECH
6. d Drilling Use high carbon bits or bits specially designed for wood drilling such as brad point spade bits forstner bits etc Secure the work piece to keep it from moving during the drilling operation SKU 3670 For technical questions please call 1 800 444 3353 Start by drilling slowly to keep the bit from moving away from your starting point Increase speed as the hole is established To prevent or reduce break out when the bit penetrates the work piece clamp a piece of scrap material to the back of the work piece Do not lock the Trigger in the ON position as the bit can easily jam in wood and the motor must be stopped quickly MAINTENANCE AND SERVICING Procedures not specifically A explained in this manual must be performed only by a qualified technician TO PREVENT AWARNING SERIOUS INJURY FROM ACCIDENTAL OPERATION Turn the Power Switch of the tool off and unplug the tool from its electrical outlet before performing any inspection maintenance cleaning procedures or removing attaching bits TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise or vibration occurs have the problem corrected before further use Cleaning Maintenance and Lubrication BEFORE EACH USE inspect the general condition of the tool Check for Page 10 loose hardware misalignment or binding 4 PERIODICALLY check the Mounting of moving parts cracked or broken
7. d through the green wire inside the cord to the grounding system in the tool The green wire in the cord must be the only wire connected to the tool s grounding system and must never be attached to an electrically live terminal See 3 Prong Plug and Outlet The tool must be plugged into an appropriate outlet properly installed and grounded in accordance with all codes and ordinances The plug and outlet should look like those in the preceding illustration See 3 Prong Plug and Outlet Double Insulated Tools Tools with Two Prong Plugs Outlets for 2 Prong Plug Tools marked Double Insulated do not require grounding They have a special double insulation system which satisfies OSHA requirements and complies with the applicable standards of Underwriters Laboratories Inc the Canadian Standard Association and the National Electrical Code Double insulated tools may be used in either of the 120 volt outlets shown in the preceding illustration See Outlets for 2 Prong Plug Page 6 Extension Cords RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS 120 240 VOLT Grounded tools require a three wire extension cord Double Insulated NAMEPLATE maa ake tools can use either a two or three wire AMPERES extension cord at full load 25 50 75 100 150 Raed seen cad s the distance from the supply outlet 23 34 18 18 16 E increases you must use a heavier gauge extension cord Using
8. driljmaster 3 8 VARIABLE SPEED REVERSIBLE DRILL SET UP AND OPERATING INSTRUCTIONS Visit our website at http www harborfreight com Read this material before using this product Failure to do so can result in serious injury SAVE THIS MANUAL Copyright 2003 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manual may not be drawn proportionally Due to continuing improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included For technical questions or replacement parts please call 1 800 444 3353 Manual revised 10g SAVE THIS MANUAL Keep this manual for the safety warnings and precautions assembly operating inspection maintenance and cleaning procedures Write the product s serial number in the back of the manual near the assembly diagram or month and year of purchase if product has no number Keep this manual and the receipt in a safe and dry place for future reference IMPORTANT SAFETY INFORMATION In this manual on the labeling and all other information provided with this product This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid
9. e Trigger 32 and disconnect from power source before adjusting tool or installing a drill bit 1 To insert a drill bit hold the rear ring of the Chuck 5 with one hand while turning the front end clockwise with the other hand to open the jaws Rev 10g SKU 3670 For technical questions please call 1 800 444 3353 Page 8 Open the jaws enough to allow the bit to slide into the Chuck Turn the front ring counterclockwise to tighten the jaws on the bit shank CAUTION Be sure the bit is centered on the jaws before tightening firmly be sure to wear heavy duty work gloves Tug on bit to make sure it is securely attached WARNING Do not use dull or damaged bits Doing so can cause undue stress on the Drill leading to possible property damage and or personal injury Work Piece and Work Area Set Up Designate a work area that is clean and well lit The work area must not allow access by children or pets to prevent distraction and injury Route the power cord along a safe path to reach the work area without creating a tripping hazard or exposing the power cord to possible damage The power cord must reach the work area with enough extra length to allow free movement while working Secure loose work pieces using a vise or clamps not included to prevent movement while working There must not be objects such as utility lines nearby that will present a hazard while working General Operating Instructions Plug Po
10. e lowest vibration when there is a choice Include vibration free periods each day of work Grip tool as lightly as possible while still keeping safe control of it Let the tool do the work To reduce vibration maintain the tool as explained in this manual If any abnormal vibration occurs stop use immediately Page 5 SAVE THESE INSTRUCTIONS GROUNDING _ AWARNING TO PREVENT ELECTRIC SHOCK AND DEATH FROM INCORRECT GROUNDING WIRE CONNECTION 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 installed by a qualified electrician Grounded Tools Tools with Three Prong Plugs 3 Prong Plug and Outlet 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 SKU 3670 2 For technical questions please call 1 800 444 3353 away from the user reducing the risk of electric shock See 3 Prong Plug and Outlet The grounding prong in the plug is connecte
11. ntal contingent special or consequential damages arising from the use of our product Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If our inspection verifies the defect we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement We will return repaired products at our expense but if we determine there is no defect or that the defect resulted from causes not within the scope of our warranty then you must bear the cost of returning the product This warranty gives you specific legal rights and you may also have other rights which vary from state to state 3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 800 444 3353 SKU 3670 For technical questions please call 1 800 444 3353 Page 14
12. ol Electrical safety a Power tool plugs must match the outlet Never modify the plug in any way Do not use any adapter plugs with grounded power tools Unmodified plugs and matching outlets will reduce risk of electric shock b Avoid body contact with grounded surfaces such as pipes radiators Page 2 a SKU 3670 ranges and refrigerators There is an increased risk of electric shock if your body is 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 Ground Fault Circuit Interrupter GFCl protected supply Use of a GFCI 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 Use personal protec
13. ons taking into account the working conditions and the work to be performed Use of the power tool for operations different from those intended could result in a hazardous situation Service a Have your power tool serviced by a qualified repair person using only identical replacement parts This will ensure that the safety of the power tool is maintained SKU 3670 Drill Safety Warnings Hold Drill by insulated gripping surfaces when performing an operation where the Drill may contact hidden wiring or its own cord Contact with a live wire will make exposed metal parts of the Drill live and shock the operator Maintain labels and nameplates on the tool These carry important safety information If unreadable or missing contact Harbor Freight Tools for a replacement Avoid unintentional starting Prepare to begin work before turning on the tool Do not lay the tool down until it has come to acomplete stop Moving parts can grab the surface and pull the tool out of your control When using a handheld power tool maintain a firm grip on the tool with both hands to resist starting torque Do not leave the tool unattended when it is plugged into an electrical outlet Turn off the tool and unplug it from its electrical outlet before leaving This product is not a toy Keep it out of reach of children People with pacemakers should consult their physician s before use Electromagnetic fields in close
14. parts Screws 3 and tighten if necessary damaged electrical wiring and any other condition that may affect its safe 5 If Carbon Brushes 14 are worn contact Harbor Freight Tools for replacements Sparano and have a qualified service technician 2 AFTER USE wipe external surfaces replace them of the tool with clean cloth Do not use SANenie 6 AWARNING If the supply cord of this power tool is damaged it must be 3 Inspect the Chuck and remove any dirt replaced only by a qualified service or debris technician Troubleshooting Possible Causes Likely Solutions Tool will not start 1 Cord not connected 1 Check that cord is plugged in 2 No power at outlet 2 Check power at outlet If outlet is unpowered turn off tool and check circuit breaker If breaker is tripped make sure circuit is right capacity for tool and circuit has no other loads Internal damage or wear Have technician service tool Carbon brushes or switch for example Tool operates slowly 1 Extension cord too long or wire Eliminate use of extension cord If an extension size too small cord is needed use shorter heavier gauge cord See Extension Cords in GROUNDING section Applying too much pressure Lessen amount of pressure on tool by turning torque setting to it minimum Performance Accessory dull or damaged Keep cutting accessories sharp Replace as decreases over time needed Carbon brushes worn or 2 Have qualified technici
15. possible injury or death DANGER indicates a A DANGER hazardous situation which if not avoided will result in death or serious injury AWARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION used with ACAUTION the safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury SKU 3670 NOTICE For technical questions please call 1 800 444 3353 NOTICE is used to address practices not related to personal injury CAUTION CAUTION without the safety alert symbol is used to address practices not related to personal injury General Power Tool Safety Warnings 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 1 Work area safety a Keep work area clean and well lit Cluttered or dark areas invite accidents b 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 c Keep children and bystanders away while operating a power tool Distractions can cause you to lose contr
16. proximity to heart pacemaker could cause pacemaker interference or pacemaker failure In addition people with pacemakers should e Avoid operating alone e Do not use with power switch locked on e Properly maintain and inspect to avoid electrical shock e Any power cord must be properly For technical questions please call 1 800 444 3353 Page 4 SKU 3670 grounded Ground Fault Circuit Interrupter GFCI should also be implemented it prevents sustained electrical shock WARNING Some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to the State of California to cause cancer birth defects 1 or other reproductive harm Some examples of these chemicals are e Lead from lead based paints e Crystalline silica from bricks and cement or other masonry products e Arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work with approved safety equipment such as those dust masks that are specially designed to filter out microscopic particles California Health amp Safety Code 25249 5 et seq WARNING Handling the cord on this product will expose you to lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands
17. tection must be NIOSH approved for the specific hazards in the work area Power tool use and care a Do not force the power tool Use the correct power tool for your application The correct power tool will do the job better and safer at the rate for which it was designed b Do not use the power tool if the switch does not turn it on and off Any power tool that cannot be controlled Page 3 with the switch is dangerous and must be repaired c Disconnect the plug from the power source and or the battery pack from the power tool before making any adjustments changing accessories or storing power tools Such preventive safety measures reduce the risk of starting the power tool accidentally d Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool Power tools are dangerous in the hands of untrained users e Maintain power tools Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the power tool s operation If damaged have the power tool repaired before use Many accidents are caused by poorly maintained power tools f Keep cutting tools sharp and clean Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control g Use the power tool accessories and tool bits etc in accordance with these instructi
18. tive equipment Always wear eye protection Safety equipment such as dust mask non skid safety shoes hard hat or hearing protection used for appropriate conditions will reduce personal injuries Prevent unintentional starting Ensure the switch is in the off position before connecting to power source and or battery pack picking For technical questions please call 1 800 444 3353 up or carrying the tool Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents Remove any adjusting key or wrench before turning the power tool on A wrench or a key left attached to a rotating part of the power tool may result in personal injury Do not overreach Keep proper footing and balance at all times This enables better control of the power tool in unexpected situations 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 If devices are provided for the connection of dust extraction and collection facilities ensure these are connected and properly used Use of these devices can reduce dust related hazards Only use safety equipment that has been approved by an appropriate standards agency Unapproved safety equipment may not provide adequate protection Eye protection must be ANSI approved and breathing pro
19. versible Chuck Capacity 1 16 to 3 8 Chuck Type Keyless LISTED E194601 UNPACKING When unpacking make sure that the item is intact and undamaged If any parts are missing or broken please call Harbor Freight Tools at 1 800 444 3353 as soon as possible INSTRUCTIONS FOR PUTTING INTO USE Read the ENTIRE IMPORTANT A SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product TO PREVENT AWARNING SERIOUS INJURY FROM ACCIDENTAL OPERATION Turn the Power Switch of the tool off and unplug the tool from its electrical outlet before assembling or making any adjustments to the tool Note For additional information regarding the parts listed in the following pages refer to the Assembly Diagram near the end of this manual Functions Lock Button 29 Forward Reverse Switch 30 Speed Limiter Dial 31 Trigger 32 Figure 1 1 The Trigger can be locked in the ON position for extended operation See Figure 1 2 The Keyless Chuck allows the operator to install and remove drill bits without using a key or tools OPERATING INSTRUCTIONS 1 Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product Tool Set Up TO PREVENT AWARNING SERIOUS INJURY FROM ACCIDENTAL OPERATION Release th
20. wer Cord 21 into suitable outlet Use the Forward Reverse Switch 30 above the Trigger 32 to determine the rotation direction of the Chuck Slide it to the right side for reverse Chuck rotation Slide to the left side for forward Chuck rotation See Figure 1 CAUTION Allow SKU 3670 Chuck to come to complete stop prior to changing its direction of rotation 3 Squeeze the Trigger 32 to start the tool The Trigger has a variable speed feature Pressing it lightly will make the tool operate slowly pressing more will cause the tool to operate faster Note The Speed Limiter Dial can be adjusted to limit the travel of the Trigger Turning the dial counterclockwise will limit the Trigger movement to low speed settings Turning the dial clockwise will allow for full Trigger range and faster speeds 4 To lock the Trigger in the ON position squeeze the Trigger pressing in the Lock ON button and then releasing the Trigger The tool will operate continuously To stop the tool squeeze and release the Trigger 5 To prevent accidents turn off the tool and disconnect from power source after use Clean then store the tool indoors out of children s reach The Drilling Operation 1 Use only well sharpened bits that are in good condition and appropriate to task 2 Use firm pressure when drilling but do not press too hard Too much pressure will not help the process and will cause bit to overheat may cause bit
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