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Owner’s Manual & Safety Instructions

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. 

21h

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 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.

Read this material before using this product. 

Failure to do so can result in serious injury. 

SAVE THIS MANUAL.

Summary of Contents for 1781C-B1

Page 1: ...rence 21h 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: ... which if not avoided could result in minor or moderate injury Addresses practices not related to personal injury IMPORTANT SAFETY INFORMATION General Power Tool Safety Warnings Read all safety warnings and all 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 ...

Page 3: ...and properly used Use of dust collection can reduce dust related hazards 8 Only use safety equipment that has been approved by an appropriate standards agency 8QDSSURYHG VDIHW HTXLSPHQW PD QRW SURYLGH DGHTXDWH SURWHFWLRQ H SURWHFWLRQ PXVW EH 16 DSSURYHG DQG EUHDWKLQJ SURWHFWLRQ PXVW EH 1 26 DSSURYHG IRU WKH VSHFLILF KD DUGV LQ WKH ZRUN DUHD Power Tool Use and Care 1 Do not force the power tool Use...

Page 4: ...void unintentional starting Prepare to begin work before turning on the tool 4 Do not lay the tool down until it has come to a complete stop Moving parts can grab the surface and pull the tool out of your control 5 When using a handheld power tool maintain a firm grip on the tool with both hands to resist starting torque 6 Do not leave the tool unattended when the Battery Pack is connected Turn of...

Page 5: ...n 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 n...

Page 6: ...Extension Cords Note Extension cords must not be used with this item s Charger Symbology Double Insulated V 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 side shields Read the manual before set up and or use WARNING marking concerning Risk of Hearing Loss Wear hearing protectio...

Page 7: ...e 1 4 Hex Setup Before Use 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 Note For additional information regarding the parts listed in the following pages refer to Parts List and Diagram on page 11 Functions Direction Switch Work Light Work Light Work Light Battery Trigger Chuck...

Page 8: ...ing Accessories CAUTION Only use 1 4 hex shank bits designed for impact use Verify bit fits the Chuck precisely before use 1 Pull Collar forward and insert an appropriate impact rated accessory into the hex drive Chuck Pull on bit to ensure it is secure 2 To remove pull Collar forward remove bit from Chuck and then release Collar Collar Attaching Belt Clip Attach Belt Clip to Handle using supplied...

Page 9: ...rotation NOTICE Do not change direction of rotation while Chuck is rotating Wait until Chuck has come to a complete stop before changing direction 5 Press Trigger to start the tool The Work Lights will turn on when Trigger is pressed and turn off a few seconds after Trigger is released 6 The tool has variable speed To increase speed apply more pressure to Trigger To decrease speed lessen pressure ...

Page 10: ...l noise or vibration occurs have the problem corrected before further use Cleaning Maintenance and Lubrication 1 BEFORE EACH USE inspect the general condition of the tool Check for leaking swollen or cracked battery pack loose hardware misalignment or binding of moving parts cracked or broken parts any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the too...

Page 11: ...DERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES 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 and Diagram Part Description Qty 1 Screw 4 2 Spring Washer 4 3 Shield 1 4 Lampshade 1 5 Screw 3 6 LED Circuit Board 1 7 Bo...

Page 12: ...lusion 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 expl...

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