Battery and Charger Sold Separately
20 V Lithium-Ion 1/2″ Brushless Mud Mixer
Model
HCB97B
TM
Owner’s Manual &
Safety Instructions
24h
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 59715.
Page 2 For technical questions, please call 1-888-866-5797. Item 59715
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.
1. Work area safety
a. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
b. 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.
c. Keep children and bystanders away
while operating a power tool. Distractions
can cause you to lose control.
2. Electrical safety
a. Power tool plugs must match the outlet.
Never modify the plug in any way. Do not use
any adapter plugs with earthed (grounded)
power tools. Unmodified plugs and matching
outlets will reduce risk of electric shock.
b. Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges
and refrigerators. There is an increased risk of
electric shock if your body is earthed or grounded.
c. Do not expose power tools to rain or wet
conditions. Water entering a power tool
will increase the risk of electric shock.
d. Do not abuse the cord. Never use the cord
for carrying, pulling or unplugging the power
tool. Keep cord away from heat, oil, sharp
edges or moving parts. Damaged or entangled
cords increase the risk of electric shock.
e. When operating a power tool outdoors,
use an extension cord suitable for outdoor
use. Use of a cord suitable for outdoor
use reduces the risk of electric shock.
f. If operating a power tool in a damp location
is unavoidable, use a ground fault circuit
interrupter (GFCI) protected supply. Use of
a GFCI reduces the risk of electric shock.
3. Personal safety
a. 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.
b. 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.
c. 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.
d. 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.
e. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
f. 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.
g. 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.
h. 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.
i. 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.
j. Do not leave the tool unattended when the
Battery Pack is connected. Turn off the tool,
and remove the Battery Pack before leaving.
k. This product is not a toy.
Keep it out of reach of children.
Page 3For technical questions, please call 1-888-866-5797.Item 59715
l. 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.
m. 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.
4. Power tool use and care
a. 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.
b. 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.
c. Disconnect the plug from the power
source and/or remove the battery pack,
if detachable, 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.
d. 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.
e. Maintain power tools and accessories.
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.
f. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
g. 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.
h. Keep handles and grasping surfaces
dry, 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.
5. Service
a. 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.
b. Never service damaged BATTERY
packs. Service of BATTERY packs should
only be performed by the manufacturer
or authorized service providers.
c. Maintain labels and nameplates on the tool.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
6. Mixer safety instructions
a. Hold the tool with both hands at the
intended handles. Loss of control
can cause personal injury.
b. Ensure sufficient ventilation when mixing
flammable materials to avoid a hazardous
atmosphere. Developing vapor may be inhaled or
be ignited by the sparks the power tool produces.
c. Do not mix food. Power tools and their
accessories are not designed for processing food.
d. Keep the cord away from the working area.
The cord may be entangled by the mixer basket.
e. Ensure that the mixing container is placed in
a firm and secure position. A container that is
not properly secured may move unexpectedly.
f. Ensure that no liquid splashes against
the housing of the power tool. Liquid that
has penetrated the power tool can cause
damage and lead to electric shock.
g. Follow the instructions and warnings
for the material to be mixed. Material
to be mixed may be harmful.
h. If the power tool falls into the material to be
mixed, unplug the tool Immediately and have
the power tool checked by a qualified repair
person. Reaching into the bucket with the tool
still plugged in can lead to electric shock.
i. Do not reach Into the mixing container
with your hands or insert any other objects
into it while mixing. Contact with the mixer
basket may lead to serious personal injury.
j. Start up and run down the tool In the
mixing container only. The mixer basket may
bend or spin in an uncontrolled manner.
Page 4 For technical questions, please call 1-888-866-5797. Item 59715
7. Battery tool use and care
a. Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to battery pack, picking up or carrying the
power tool. Carrying the power tool with your
finger on the switch or energizing power tool
that have the switch on invites accidents.
b. Disconnect the battery pack from the
power tool before making any adjustments,
changing accessories, or storing power tool.
Such preventive safety measures reduce the
risk of starting the power tool accidentally.
c. 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.
d. Use power tools only with specifically
designated battery packs. Use of any other
battery packs may create a risk of injury and fire.
e. 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.
f. 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.
g. Do not use a battery pack or power tool that
is damaged or modified. Damaged or modified
batteries may exhibit unpredictable behavior
resulting in fire, explosion or risk of injury.
h. Do not expose a battery pack or power tool to
fire or excessive temperature. Exposure to fire
or temperature above 140°F may cause explosion.
i. Follow all charging instructions and do
not charge the battery pack or power tool
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.
j. Have servicing performed by a qualified
repair person using only identical
replacement parts. This will ensure that
the safety of the product is maintained.
k. Do not modify or attempt to repair the power
tool or the battery pack except as indicated
in the instructions for use and care.
l. 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.
8. Lithium Battery Safety Warnings
LITHIUM BATTERIES STORE
A LARGE AMOUNT OF ENERGY AND
WILL VENT FIRE OR EXPLODE
IF MISTREATED:
a. Keep Battery Pack dry.
b. DO NOT DO ANY OF THE FOLLOWING
TO THE BATTERY PACK:
• Open,
• Drop,
• Short-circuit,
• Puncture,
• Incinerate, or
• Expose to temperatures greater than 140°F.
c. Charge Battery Pack only according
to its Charger’s instructions.
d. Inspect Battery Pack before every use;
do not use or charge if damaged.
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.
Page 5For technical questions, please call 1-888-866-5797.Item 59715
Symbology
V
Volts
Direct Current
A
Amperes
n
0
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 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.
SPECIFICATIONS
Battery Type
20V Li-Ion 57373, 57306
Hercules (sold separately)
Charger Type
20V Li-Ion 56224, 56559
Hercules (sold separately)
No Load Speed n
0
: 0 – 550 / min
Chuck Size 1/2" (Ø13 mm)
Mixing Accessory Type
Rectangular, Eggbeater,
Jiffy Mixer
SET UP - 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.
Assembly
To attach the Auxiliary Handle, thread the Handle into one
of the mounting holes on either the right or left side of the
Mixer or into the mounting hole on top. Tighten securely.
Auxiliary
Handle
Auxiliary
Handle
in place
Charging
Charge battery before using this tool. Follow
instructions included with battery charger.
Page 6 For technical questions, please call 1-888-866-5797. Item 59715
Functions
Direction
Switch
Chuck
Battery
(sold separately)
Speed
Control
Dial
Chuck
Key
Auxiliary
Handle
Variable
Speed Trigger
LED
Worklight
Main Handle
Lock ON
Button
Page 7For technical questions, please call 1-888-866-5797.Item 59715
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
.
Setting and Testing
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL
OPERATION: Make sure that the Trigger is in the
off-position and remove the Battery Pack before
performing any procedure in this section.
Attaching Mixing Paddle
1. Loosen the Chuck with the Chuck Key until
the jaws of the Chuck are opened enough
to fit the Mixing Paddle (not included).
2. Use a Mixing Paddle appropriate for the
material to be mixed. Refer to chart for general
guidelines on several typical applications.
Mix Material Paddle Type
Drywall Compound, Stucco Rectangular
Thinset, Tile Mortar Eggbeater
Epoxy Jiffy Mixer
3. Insert Mixing Paddle into Mixer Chuck.
4. Insert the tip of the Chuck Key into a hole on the
side of the Chuck so that the teeth on the Key
engage the gear on the Chuck. Turn clockwise
to tighten securely and remove the Key.
5. To remove Mixing Paddle, proceed in reverse order.
Speed Selection
As a general guideline, use lower speeds for thin
materials and higher speeds for thick materials.
1. Adjust tool speed by rotating the Speed Control Dial
on the Handle from MIN (low) up to MAX (high):
• For the lowest speed, rotate the Speed
Control Dial to the MIN setting (150 RPM)
• For the highest speed, rotate the Speed
Control Dial to the MAX setting (550 RPM)
2. Follow material manufacturer’s instructions
for proper mixing speed.
Setting Direction Switch
To 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 lock the Trigger.
CAUTION! Set Direction Switch to center
Trigger Lock position during set up, when
changing mixing paddles, or when tool is idle.
Push
for
Forward
Push
for
Reverse
Push to Center to
LOCK TRIGGER
Work Area Set Up
1. Designate a work area that is clean and well lit.
The work area must not allow access by children
or pets to prevent distraction and injury.
2. There must not be objects, such as utility lines,
nearby that will present a hazard while working.
Page 8 For technical questions, please call 1-888-866-5797. Item 59715
General Instructions for Use
1. Push Direction Switch to the center to
lock Trigger, then attach a 20 V Hercules
Battery Pack (sold separately).
2. Place a bucket (not included) on a flat, level surface.
NOTE: Refer to the material manufacturer’s
instructions for proper mixing directions.
3. Pour the material into the bucket.
4. Select speed and rotation direction.
NOTICE: Do not change direction of rotation
while Chuck is rotating. Wait until Chuck has come
to a complete stop before changing direction.
5. Firmly grip the Main Handle with one
hand and the Auxiliary Handle with the
other hand without engaging Trigger.
6. Put Mixing Paddle into bucket.
7. Squeeze the Trigger to start tool. The tool
has variable speed. Apply more pressure to
Trigger to increase mixing speed, up to the
speed set with the Speed Control Dial. Lessen
pressure on Trigger to decrease speed.
8. For continuous operation, squeeze the
Trigger and press and hold the Lock ON
Button, then release the Trigger. Press and
release the Trigger to turn the Mixer off.
9. For uniform mixing move the Mixing Paddle
around the bucket while mixing. Follow material
manufacturer’s instructions for proper mixing
speed. Do not overload tool. If tool bogs
down, release Trigger, or press and release the
Trigger if the Lock ON Button is engaged.
CAUTION! Do not allow mixing paddle to contact
mixing bucket during mixing or tool may kick back.
10. When material has been mixed release the Trigger, or
press and release the Trigger if the Lock ON Button
is engaged. Wait for tool to come to a complete
stop and remove Mixing Paddle from material.
11. To prevent accidents, turn off the tool and
remove its Battery Pack after use. Clean, then
store the tool indoors out of children’s reach.
Cleaning
1. Immediately after use, clean the Mixing Paddle:
a. If material is water-based, fill clean bucket
with water, put Mixing Paddle into bucket
and squeeze Trigger. When finished, turn
off the tool and remove its Battery Pack.
b. If material is oil-based, turn off the tool and
remove its Battery Pack. Wipe off Mixing Paddle
with a clean towel, then wipe off with a clean
cloth moistened with mineral spirits.
2. Dry the Mixing Paddle with a clean cloth.
3. To prevent accidents, turn off the tool and
remove its Battery Pack after cleaning.
4. Spray the Mixing Paddle with light oil to
prevent corrosion while in storage, then store
the tool indoors out of children’s reach
Page 9For technical questions, please call 1-888-866-5797.Item 59715
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: Release the Trigger and remove the
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
• damaged electrical wiring
• any other condition that may
affect its safe operation.
2. IMMEDIATELY AFTER USE, clean the
Mixing Paddle according to Cleaning on
page 8. Spray the paddle with light oil to
prevent corrosion while in storage, then store
the tool indoors out of children’s reach.
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.
4. Li-Ion BATTERY MUST BE RECYCLED OR
DISPOSED OF PROPERLY.
Do not short, incinerate or open battery.
Page 10 For technical questions, please call 1-888-866-5797. Item 59715
Troubleshooting
Problem Possible Causes Likely Solutions
Tool will
not start.
1. Battery Pack not properly
connected.
2. Battery Pack not
properly charged.
3. Battery Pack worn 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.
Mixing Paddle
wobbles.
Chuck loose. Tighten the Chuck.
Unsatisfactory
mixing results.
Tool speed too fast or too slow. Check with material manufacturer’s recommendations
for proper mixing speed. Then adjust Speed
Control Dial to proper tool mixing speed.
Tool operates
slowly.
Material too thick. Thin out material.
Excessive noise
or rattling.
Internal damage or wear.
(Bearings, for example.)
Have technician service tool.
Overheating. 1. Forcing tool to work too fast.
2. Blocked motor housing vents.
1. Allow tool to work at its own rate.
2. 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 Battery Pack and Charger power supply before service.
Page 11For technical questions, please call 1-888-866-5797.Item 59715
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Replacement parts may be available for this item.
Visit harborfreight.com/parts for a list of in-stock parts. Reference UPC 193175479846.
TM
26677 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797
Visit our website at: https://www.harborfreight.com
Email our technical support at: [email protected]
For technical questions, please call 1-888-866-5797
Copyright
©
2023 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.
5-YEAR LIMITED WARRANTY
This Hercules tool is warranted to the original purchaser to be free from defects in materials and workmanship
for a period of five (5) years beginning on the date of purchase. This warranty does not cover battery packs and
battery chargers, which are covered under separate warranties. To obtain warranty service, visit your local Harbor
Freight retail store. Warranty registration is not required. The product or part must be returned to us with proof of
purchase (e.g. in-store receipt or packing slip/invoice) and may require shipment by purchaser to a service center
at purchaser’s expense. If our inspection verifies a covered defect in materials or workmanship during the warranty
period, we will, at our option, repair or replace the defective product. We will return repaired products within a
reasonable time at our expense, but if we determine that there is no defect, or that the defect resulted from causes
not within the scope of our warranty, then we will return the product to you if you pay return shipping costs.
This warranty does not cover any failure or damage that we determine is due directly or indirectly to normal
wear and tear, misuse, use not for the intended purpose or not in accordance with the product manual,
abuse, accident, rental, modification or alteration, unauthorized repair, improper installation, neglect, lack of
maintenance, or any other failure not arising from defective materials or workmanship. Fraudulent returns or
claims will be denied. The repair or replacement described in this warranty shall be your sole and exclusive
remedy. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES, WRITTEN
OR ORAL, AND ANY IMPLIED WARRANTIES ARE DISCLAIMED TO THE EXTENT PERMITTED BY LAW
AND OTHERWISE LIMITED TO THE DURATION OF THE EXPRESS WARRANTY HEREIN. HARBOR
FREIGHT SHALL NOT BE LIABLE UNDER ANY CIRCUMSTANCES FOR ANY INCIDENTAL, INDIRECT,
SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES OR COSTS ARISING FROM THIS WARRANTY
OR THE USE OF THIS PRODUCT. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS OR THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL
DAMAGES, SO THESE LIMITATIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC
LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
