Hercules HC106B Assembly instructions

Battery and Charger Sold Separately
Model
HC106B
20V Compact LED Work Light
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 57279.
Owner’s Manual &
Safety Instructions
20j

Page 2 For technical questions, please call 1-888-866-5797. Item 57279
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.
The term ″power tool″ in the warnings refers to
your 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, 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. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
5. 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.
6. 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.
7. 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.
Power Tool Use and Care
1. 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.
2. Do not use the power tool if the Switch
does not turn it on and off.
Any power tool that cannot be controlled with the
Switch is dangerous and must be repaired.
3. Disconnect 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.
4. 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.
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.

Page 3For technical questions, please call 1-888-866-5797.Item 57279
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.
Flashlight Safety Warnings
1. Do not shine directly into eyes
of people or animals.
2. Not a toy; keep away from children.
3. Maintain labels and nameplates on the tool.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
4. Avoid unintentional starting.
Prepare to begin work before turning on the tool.
5. Do not leave the tool unattended when the
Battery Pack is connected. Turn off the tool,
and remove the Battery Pack before leaving.
6. 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.
7. This product is not a toy.
Keep it out of reach of children.
8. 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.
Lithium Battery Safety Warnings
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. 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.
3. 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.
4. Do not use a battery pack that is damaged
or modified. Damaged or modified batteries
may exhibit unpredictable behavior resulting
in fire, explosion or risk of injury.
5. Do not expose a battery pack to fire or excessive
temperature. Exposure to fire or temperature above
130°C may cause explosion. The temperature of
130°C can be replaced by the temperature of 265°F.
6. Follow all charging instructions and do not charge
the battery pack outside of the temperature range
specified in the instructions. Charging improperly or
at temperatures outside of the specified range may
damage the battery and increase the risk of fire.
7. Have servicing performed by a qualified
repair person using only identical
replacement parts. This will ensure that the
safety of the product is maintained.

Page 4 For technical questions, please call 1-888-866-5797. Item 57279
8. Do not modify or attempt to repair the appliance
or the battery pack (as applicable) except as
indicated in the instructions for use and care.
9. Lithium batteries store a large amount of energy
and will vent fire or explode if mistreated:
10. Keep Battery Pack dry.
11. DO NOT DO ANY OF THE FOLLOWING
TO THE BATTERY PACK:
• Open,
• Drop,
• Short-circuit,
• Puncture,
• Incinerate, or
• Expose to temperatures greater than 265°F.
12. Charge Battery Pack only according
to its Charger’s instructions.
13. Inspect Battery Pack before every use;
do not use or charge if damaged.
SAVE THESE
INSTRUCTIONS.
GROUNDING
TO PREVENT ELECTRIC SHOCK AND
DEATH FROM
INCORRECT GROUNDING:
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 charger. Do not use the charger 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.
Extension Cords
Note: Extension cords must not be
used with this item’s Charger.
Symbology
VVolts
Direct Current
AAmperes
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 Fire.
Do not cover Charger ventilation ducts.
Charge on fireproof surface only.
WARNING marking concerning
Risk of Electric Shock.
Properly connect Charger’s power
cord to appropriate outlet.
WARNING marking concerning Risk
of Explosion. Do not puncture, short,
or open battery packs and do not
charge damaged battery packs.
Warning Symbols and Definitions
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 possible injury or death.
Indicates a hazardous
situation which, if not
avoided, will result in death or serious injury.
Indicates a hazardous
situation which, if not
avoided, could result in death or serious injury.
Indicates a hazardous
situation which, if not
avoided, could result in minor or moderate injury.
Addresses practices not
related to personal injury.

Page 5For technical questions, please call 1-888-866-5797.Item 57279
SPECIFICATIONS
Battery Hercules 20 V HC01 Li-ion
(sold separately)
Charger Hercules 20V HC04 Li-Ion
(sold separately)
Operating Temperature 14 - 104° F
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 7.
Functions
1. Power Switch
2. Hook
3. Battery Pack
(sold separately)
12
3
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.
Charging
1. Charge battery before using this tool.
Follow instructions included with battery
charger. Example instructions follow.
Battery pack and charger sold separately.
2. Place the Battery Pack on a dry fireproof surface in a
room where the temperature is between 50–104° F.
Note: If recharging a newly spent Battery Pack,
allow it to cool completely before charging.
3. Examine the Battery Pack. It must be
undamaged, and a 12 or 20 volt, Lithium-ion
type Battery Pack. Do not charge a cracked,
open, or leaking Battery Pack, or charge a
non-recommended type of Battery Pack.
4. The Battery Pack’s terminals are designed to fit
this Charger specifically. If the Battery Pack does
to not fit the Charger properly, do not try to insert it.
Do not force a Battery Pack into the Charger.
5. Plug the Charger into a grounded,
120VAC, 60Hz receptacle.
6. Slide the Battery Pack onto the Charger.
Note: If the Battery Pack is hot or cold, the Charge
Indicators may both flash, indicating that the Charger
is waiting for the temperature to normalize before
Charging. Charging will start automatically once the
Battery Pack reaches the correct temperature.
7. While charging, the Battery Pack and Charger
may become warm to the touch. This is
normal, and does not indicate a problem.
8. The red LED will light constantly and the green
LED will flash when the Battery Pack is charging.
The green LED will light constantly and the red
LED will turn off when the battery is charged.
Unplug the Charger and disconnect it
from the Battery Pack when finished.
9. Allow the Battery Pack to cool
completely before using it.
10. Press the Release Button to release
Battery Pack from the Charger.
General Operating Instructions
1. Insert fully charged Battery Pack into the Flashlight,
making sure it clicks into place securely.
2. Adjust the Flashlight’s head position by
rotating it up or down to click in place
at any of the locking positions.
3. Press Power Switch once for full light
output. Press again for less light output.
Press a third time to turn light off.
4. Turn off Flashlight and remove Battery
Pack after use. Clean, then store the
tool indoors out of children’s reach.

Page 6 For technical questions, please call 1-888-866-5797. Item 57279
MAINTENANCE AND SERVICING
Procedures not specifically explained
in this manual must be performed
only by a qualified technician.
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION:
Make sure that the Switch is in the off-position
and remove its Battery Pack before
performing any procedure in this section.
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
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,
charger, and tool in dry, indoor area out of
reach of children and away from metal objects
(i.e., paperclips, coins) to prevent shorting.
Troubleshooting
Problem Possible Causes Likely Solutions
Flashlight will
not turn on.
1. Battery Pack not properly
connected.
2. Battery Pack not properly
charged.
3. Battery Pack burnt-out.
4. Internal damage or wear.
1. Remove Battery Pack, make sure there are no
obstructions, reinsert the Battery Pack according
to its shape (it should only fit one way), and press
firmly until the Battery Pack locks in place.
2. Make sure Charger is connected and
operating properly. Give enough time for
Battery Pack to recharge properly.
3. Dispose of old Battery Pack properly or recycle.
Replace Battery Pack.
4. Have technician service tool.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect Battery Pack and Charger 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 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 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.
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 illustration purposes only, and are not available
individually as replacement parts. Specify UPC 792363572798 when ordering parts.

Page 7For technical questions, please call 1-888-866-5797.Item 57279
PARTS LIST AND DIAGRAM
Part Description Qty
1 Front Cover 1
2 Lens 1
3 Reflector 1
4 LED 1
5 Reflector Cover 1
6 Screw 2
7 Right Cover 1
8 Switch Cover 1
9 Left Cover 1
10 Switch Cover Support 1
11 Spring 1
Part Description Qty
12 Pin 1
13 Switch Assembly 1
14 PCB 1
15 Screw M2.6 x 6 2
16 Handle Left 1
17 Nut M4 2
18 Battery Holder 1
19 Hook 1
20 Handle Right 1
21 Screw M3 x 12 11
1
2
3
4
567
8
9
10
11
12
16
17
18
19
15
14
21
21
20
13
17

26541 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797
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 incidental, 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.