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

Item 56567 

        

IMPORTANT SAFETY INFORMATION

GENERAL POWER TOOL SAFETY WARNINGS

Read all safety warnings, instructions, illustrations 
and specifications provided with this power tool.

Failure to follow all instructions listed below 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.

Work Area Safety

1. 

Keep work area clean and well lit.  

Cluttered or dark areas invite accidents.

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 children and bystanders 
away while operating a power tool.  

Distractions can cause you to lose control.

Electrical Safety

Do not expose power tools to rain or wet 
conditions

.  Water entering a power tool 

will increase the risk of electric shock.

Personal Safety

1. 

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.

2. 

Use personal protective equipment.  Always wear 
eye protection.

  Protective equipment such 

as dust mask, non-skid safety shoes, hard hat, 

or hearing protection used for appropriate 
conditions will reduce personal injuries.

3. 

Prevent unintentional starting. Ensure the switch 
is in the off-position before connecting to 
power source 

and/or battery pack, picking 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.

4. 

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.

5. 

Do not overreach.  Keep proper footing and 
balance at all times.

  This enables better control 

of the power tool in unexpected situations.

6. 

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.

7. 

If devices are provided for the connection of 
dust extraction and collection facilities, ensure 
these are connected and properly used.  

Use of 

dust collection can reduce dust-related hazards.

8. 

Do not let familiarity gained from frequent use 
of tools allow you to become complacent and 
ignore tool safety principles.  

A careless action 

can cause severe injury within a fraction of a second.

9.  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 protection must be NIOSH-approved 
for the specific hazards in the work area.

10.  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.

11.  When using a handheld power tool, 

maintain a firm grip on the tool with both 
hands to resist starting torque.

12.  Do not leave the tool unattended when the 

Battery Pack is connected.  Turn off the tool, 
and remove the Battery Pack before leaving.

Summary of Contents for HD81B

Page 1: ...prevent serious injury User must read and understand Owner s Manual SAVE THIS MANUAL 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 Reference 56567 Owner s Manual Safety Instructions 19d ...

Page 2: ...g Ensure the switch is in the off position before connecting to power source and or battery pack picking 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 4 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 i...

Page 3: ...clean and free from oil and grease Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations Service 1 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 2 Maintain labels and nameplates on the tool These carry important safety...

Page 4: ...bracing the tool during operation loss of control may occur resulting in personal injury 3 Hold the power tool by insulated gripping surfaces when performing an operation where the cutting accessory or fasteners may contact hidden wiring or its own cord Cutting accessory contacting a live wire may make exposed metal parts of the power tool live and could give the operator an electric shock 4 Let b...

Page 5: ...uring use Nicotine reduces the blood supply to the hands and fingers increasing the risk of vibration related injury 3 Wear suitable gloves to reduce the vibration effects on the user 4 Use tools with the lowest vibration when there is a choice 5 Include vibration free periods each day of work 6 Grip tool as lightly as possible while still keeping safe control of it Let the tool do the work 7 To r...

Page 6: ...hort or open battery packs and do not charge damaged battery packs WARNING marking concerning Risk of Electric Shock Properly connect Charger s power cord to appropriate outlet SPECIFICATIONS Battery Type Hercules 12V Li Ion sold separately No Load Speed 0 2500 RPM Chuck Size 1 4 SETUP BEFORE USE Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all tex...

Page 7: ...d remove the Battery Pack before performing any procedure in this section Attaching Removing 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 sold separately into the hex drive Chuck Pull on bit to ensure it is secure 2 To remove pull Collar forward remove bi...

Page 8: ... set up when changing bits or when tool is idle NOTICE Use sharp bits Dull bent or damaged bits will cause stress on the tool and or break Push for Forward Push for Reverse Push to Center to LOCK TRIGGER 3 Install bit and select direction of rotation NOTICE Do not change direction of rotation while Chuck is rotating Wait until Chuck has come to a complete stop before changing direction 4 Press Tri...

Page 9: ...y pack 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 and Charger with clean cloth 3 Li ion BATTERY MUST BE RECYCLED OR DISPOSED OF PROPERLY Do not short incinerate or open battery 4 Disconnect Battery Pack and store Battery Pack Charger an...

Page 10: ...ian service tool Tool operates slowly 1 Forcing tool to work too fast 2 Battery Pack wearing out 1 Allow tool to work at its own rate 2 Dispose of old Battery Pack properly or recycle Replace Battery Pack Performance decreases over time 1 Carbon brushes worn or damaged 2 Bit dull or damaged 1 Have qualified technician replace brushes 2 Keep bits sharp Replace as needed Excessive noise or rattling ...

Page 11: ... 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 ins...

Page 12: ... 2019 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 s...

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