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

Items 63381 63382 
        

5. 

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.

6. 

Keep cutting tools sharp and clean.

  Properly 

maintained cutting tools with sharp cutting edges 

are less likely to bind and are easier to control.

7. 

Use the power tool, accessories and tool bits 
etc. in accordance with these instructions, 
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.

Battery Tool Use and Care

1. 

Recharge only with the charger specified by 
the manufacturer.

 

A charger that is suitable 

for one type of battery pack may create a risk 
of fire when used with another battery pack.

2. 

Use power tools only with specifically 
designated battery packs.

 

Use of any other 

battery packs may create a risk of injury and fire.

3. 

When battery pack is not in use, keep it away 
from other metal objects, like paper clips, 
coins, keys, nails, screws or other small metal 
objects, that can make a connection from 
one terminal to another. 

Shorting the battery 

terminals together may cause burns or a fire.

4. 

Under abusive conditions, liquid may be 
ejected from the battery; avoid contact. 
If contact accidentally occurs, flush with water. 
If liquid contacts eyes, additionally seek 
medical help. 

Liquid ejected from the 

battery may cause irritation or burns.

Service

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.

Drill Safety Warnings

1. 

Use auxiliary handle(s), if supplied with the tool.

  

Loss of control can cause personal injury.

2. 

Hold power tool by insulated gripping surfaces, 
when performing an operation where the 
cutting accessory may contact hidden wiring.

  

Cutting accessory contacting a ″live″ wire may 
make exposed metal parts of the power tool ″live″ 
and could give the operator an electric shock.

3.  Let bit cool before touching, changing 

or adjusting it.  Bits heat up dramatically 
while in use, and can burn you.

4.  If the drill bit jams, release the Trigger immediately; 

drill torque can cause injury or break bit.

5.  Maintain labels and nameplates on the tool.  

These carry important safety information.  
If unreadable or missing, contact 
Harbor Freight Tools for a replacement.

6.  Avoid unintentional starting.  Prepare to 

begin work before turning on the tool.

7.  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.

8.  When using a handheld power tool, 

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

9.  Do not leave the tool unattended when the 

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

10.  The battery Charger gets hot during use.  The 

Charger’s heat can build up to unsafe levels and 
create a fire hazard if it does not receive adequate 
ventilation, due to an electrical fault, or if it is used in 
a hot environment.  Do not place the Charger on a 
flammable surface.  Do not obstruct any vents on the 
Charger.  

Especially avoid placing the Charger on 

carpets and rugs; they are not only flammable, 
but they also obstruct vents under the Charger. 

Place the Charger on a stable, solid, nonflammable 
surface (such as a stable metal workbench 
or concrete floor) at least 1 foot away from 
all flammable objects, such as drapes or 
walls.  Keep a fire extinguisher and a smoke 
detector in the area.  Frequently monitor the 
Charger and Battery Pack while charging.

11.  This product is not a toy.  

Keep it out of reach of children.

12.  People with pacemakers should consult their 

physician(s) before use.  Electromagnetic fields in 
close proximity to heart pacemaker could cause 
pacemaker interference or pacemaker failure.

13.  The warnings, precautions, and instructions 

discussed in this instruction manual cannot cover all 
possible conditions and situations that may occur.   
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.

Summary of Contents for HC91K1

Page 1: ...WARNING To 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 63381 63382 Owner s Manual Safety Instructions ...

Page 2: ...on 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 Trigger is in the off position before connecting to power source picki...

Page 3: ...tacting a live wire may make exposed metal parts of the power tool live and could give the operator an electric shock 3 Let bit cool before touching changing or adjusting it Bits heat up dramatically while in use and can burn you 4 If the drill bit jams release the Trigger immediately drill torque can cause injury or break bit 5 Maintain labels and nameplates on the tool These carry important safe...

Page 4: ...ngers 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 reduce vibration maintain the tool as explained in this manual I...

Page 5: ...ATION 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 Make sure that the Trigger is locked and Battery Pack is removed before performing any procedure in this section Battery Charging Charge battery after unpacking an...

Page 6: ...hat will present a hazard while working General Operation 1 Lock Trigger then insert a fully charged Battery Pack making sure that it clicks into place securely 2 Set Direction Switch Forward Push Switch in on right side arrow pointing forward for clockwise rotation Reverse Push Switch in on left side arrow pointing backward for counter clockwise rotation Trigger Lock Push Switch to the center to ...

Page 7: ...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 and any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the tool with clean cloth 3 Disconnect battery pack and store battery pack ch...

Page 8: ...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 def...

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