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For technical questions, please call 1-888-866-5797.

Item 58162

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Operating Instructions

  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 SERIOUS INJURy FROM AccIDENTAL OpERATION: 
Turn the power Switch of the tool off, wait for the motor to stop, 
before adjusting tool or installing accessories.

TO pREVENT SERIOUS INJURy FROM AccESSORy FAILURE: 
Only use accessories that are rated at or above the RpM rating of the cordless Rotary Tool.

charging

NOTE:

 Before using tool for the first 

time, fully charge the Battery.

1.  Use only included Charger. Use of 

other chargers may cause battery 

failure including explosion.

2.  Plug charger’s jack into charging port. 

charging 

port

Battery 

Indicator

3.  Plug Adaptor into a grounded 120VAC outlet.

4.  During recharging, the tool will become 

slightly warm to the touch. This is normal 

and not a cause for concern.

5.  Battery indicator shows charging when 

LEDs flash. When charging is done lights 

will stay on. Unplug charging cable.

NOTIcE:

 Do not leave the Battery in a 

discharged state. Charge the Battery every 3 

months if the tool is not in use. This will keep the 

Battery from wearing down and add to its life. Do 

not charge the tool at temperatures below 40° F.

Summary of Contents for 21681-B

Page 1: ...rence 21l When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2021 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 manua...

Page 2: ...esses practices not related to personal injury IMpORTANT SAFETy INFORMATION General power Tool Safety Warnings 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 7KH WHUP ƎSRZHU WRROƎ LQ WKH ZDUQLQJV UHIHUV WR RXU EDWWHU RSHUDWHG FRUGOHVV SRZHU WRRO...

Page 3: ...uipment 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 protection must be NIOSH approved for the specific hazards in the work area power Tool Use and care 1 Do not force the power tool Use the correct power tool for your application 7KH FRUUHFW SRZHU WRRO will do the job be...

Page 4: ...held and or the overhang of the wheel is too long the MOUNTED WHEEL may become loose and be ejected at high velocity 7 Do not use a damaged accessory Before HDFK XVH LQVSHFW WKH DFFHVVRU VXFK DV DEUDVLYH ZKHHOV IRU FKLSV DQG FUDFNV sanding drum for cracks tear or excess wear wire brush for loose or cracked wires I SRZHU WRRO RU DFFHVVRU LV GURSSHG LQVSHFW IRU GDPDJH RU LQVWDOO DQ XQGDPDJHG DFFHVVR...

Page 5: ...t in electrocution or shock 19 Maintain labels and nameplates on the tool These carry important safety information If unreadable or missing contact Harbor Freight Tools for a replacement 20 Avoid unintentional starting Prepare to begin work before turning on the tool 21 Do not depress the spindle lock when starting or during operation 22 Do not leave the tool unattended when the switch is on Turn ...

Page 6: ...he tool in the wrong direction causes the cutting edge of WKH ELW WR FOLPE RXW RI WKH ZRUN DQG SXOO the tool in the direction of this feed 5 When using rotary files cut off wheels high speed cutters or tungsten carbide cutters always have the work securely clamped These wheels will grab if they become slightly canted in the groove and can kickback When a cut off wheel grabs the wheel itself usuall...

Page 7: ...oulders To reduce the risk of vibration related injury 1 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 Ray...

Page 8: ...repaired by a service facility before use If the plug will not fit the outlet have a proper outlet installed by a qualified electrician Extension cords Note Extension cords must not be used with this item s Charger Symbology VAc Volts Alternating Current A Amperes n0 xxxx min No Load Revolutions per Minute RPM WARNING marking concerning Risk of Eye Injury Wear ANSI approved safety goggles with sid...

Page 9: ... beginning of this manual including all text under subheadings therein before set up or use of this product TO pREVENT SERIOUS INJURy FROM AccIDENTAL OpERATION Make sure that the power Switch is in the off position and unplug the tool from it s electrical outlet before performing any procedure in this section Note For additional information regarding the parts listed in the following pages refer t...

Page 10: ...rating of the cordless Rotary Tool charging NOTE Before using tool for the first time fully charge the Battery 1 Use only included Charger Use of other chargers may cause battery failure including explosion 2 Plug charger s jack into charging port charging port Battery Indicator 3 Plug Adaptor into a grounded 120VAC outlet 4 During recharging the tool will become slightly warm to the touch This is...

Page 11: ... personal or property damage may result from using mismatched collets or bits 4 Tighten Collet Nut securely using the provided wrench Ensure that the spindle lock is released before turning on the tool Installing Shield The housing cap is interchangeable with the shield attachment 1 Remove the housing cap by turning counterclockwise Housing cap 2 Install the shield attachment by turning lock nut c...

Page 12: ... by pushing the Power Switch to ON position 4 Use the speed buttons to increase or decrease speed Use a speed appropriate to the bit and the material being worked on In general harder materials require faster speeds and softer materials require slower speeds power Switch Speed Buttons 5 Apply the bit to the work material as needed 6 When task is complete stop the tool by pushing power switch to th...

Page 13: ...se cleaning Maintenance and Lubrication 1 BEFORE EAcH USE inspect the general condition of the tool Check for loose hardware misalignment or binding of moving parts cracked or broken parts damaged electrical wiring any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the tool with clean cloth 3 Store tool parts and accessories inside case to protect from moi...

Page 14: ... 3 Wear ANSI approved safety goggles and NIOSH approved dust mask respirator while blowing dust out of motor using compressed air Follow all safety precautions whenever diagnosing or servicing the tool Disconnect power supply before service 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 ONL...

Page 15: ...peed Light Guide 1 8 6 PCB Board Screw 2 8 7 Battery Components 1 9 Motor Case Parts 1 10 Ring 1 11 End Cap 1 12 Motor DC7 2 1 13 Electrode Bracket 1 14 Electrode Rubber Pad 2 15 Motor Screw 2 16 Motor Case Screw 6 parts List and Diagram Record product s Serial Number Here Note If product has no serial number record month and year of purchase instead Note Some parts are listed and shown for illust...

Page 16: ...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 merchand...

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