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Bauer 21861-B Assembly instructions

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Visit our website at: http://www.harborfreight.com
Email our technical support at: [email protected]
21861-B
8V
ROTARY TOOL KIT
58162
VI
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 (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. 23d
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©2022 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.
Page 2 For technical questions, please call 1-888-866-5797. Item 58162
SAFETY OPERATION MAINTENANCESETUP
Table of Contents
Safety ............................................................ 2
Setup - Before Use:....................................... 9
Setup ............................................................. 9
Operation...................................................... 13
Maintenance................................................. 17
Warranty ....................................................... 20
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.
IMPORTANT SAFETY INFORMATION
General Power Tool Safety Warnings
Read all safety warnings and 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.
Page 3For technical questions, please call 1-888-866-5797.Item 58162
SAFETYOPERATIONMAINTENANCE SETUP
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. Safety
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/trigger is in the off-position
before 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 these devices
can reduce dust‑related hazards.
8. 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.
9. This product is not a toy.
Keep it out of reach of children.
10. 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.
11. 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.
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/
trigger does not turn it on and off.
Any power tool that cannot be
controlled with the switch/trigger is
dangerous and must be repaired.
3. Turn off the switch 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.
Page 4 For technical questions, please call 1-888-866-5797. Item 58162
SAFETY OPERATION MAINTENANCESETUP
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.
8. 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.
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 information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
Safety Warnings Common for Grinding, Sanding,
Wire Brushing, Polishing, or Abrasive Cutting-off Operations
1. This power tool is intended to function
as a grinder, sander, wire brush,
polisher, or cut-off tool. 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.
2. Do not use accessories which are not
specifically designed and recommended
by the tool manufacturer. Just because
the accessory can be attached to your
power tool, it does not assure safe operation.
3. The RATED SPEED of the grinding
accessories must be at least equal
to the maximum speed marked on
the power tool. Grinding accessories
running faster than their RATED
SPEED can break and fly apart.
4. The outside diameter and the thickness
of your accessory must be within
the capacity rating of your power
tool. Incorrectly sized accessories
cannot be adequately controlled.
5. The arbour size of wheels, sanding
drums or any other accessory must
properly fit the spindle or collet of
the power tool. Accessories that do
not match the mounting hardware of the
power tool will run out of balance, vibrate
excessively and may cause loss of control.
6. Mandrel MOUNTED WHEELS, sanding
drums, cutters or other accessories
must be fully inserted into the collet or
chuck. If the mandrel is insufficiently held
and/or the overhang of the wheel is too
long, the MOUNTED WHEEL may become
loose and be ejected at high velocity.
7. Do not use a damaged accessory. Before
each use inspect the accessory such as
abrasive wheels for chips and cracks,
sanding drum for cracks, tear or excess
wear, wire brush for loose or cracked
wires. If power tool or accessory is
dropped, inspect for damage or install an
undamaged accessory. After inspecting
and installing an accessory, position
yourself and bystanders away from the
plane of the rotating accessory and run
the power tool at maximum no-load speed
for one minute. Damaged accessories will
normally break apart during this test time.
Page 5For technical questions, please call 1-888-866-5797.Item 58162
SAFETYOPERATIONMAINTENANCE SETUP
8. Wear personal protective equipment.
Depending on application, use face
shield, safety goggles or safety glasses.
As appropriate, wear dust mask, hearing
protectors, gloves and workshop apron
capable of stopping small abrasive or
workpiece fragments. The eye protection
must be capable of stopping flying debris
generated by various operations. The
dust mask or respirator must be capable
of filtrating particles generated by your
operation. Prolonged exposure to high
intensity noise may cause hearing loss.
9. Keep bystanders a safe distance away
from work area. Anyone entering the
work area must wear personal protective
equipment. Fragments of workpiece or of a
broken accessory may fly away and cause
injury beyond immediate area of operation.
10. Hold power tool by insulated gripping
surfaces only, when performing an
operation where the cutting accessory
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.
11. Always hold the tool firmly in your
hand(s) during the start-up. The reaction
torque of the motor, as it accelerates to
full speed, can cause the tool to twist.
12. Use clamps to support workpiece
whenever practical. Never hold a small
workpiece in one hand and the tool in
the other hand while in use. Clamping
a small workpiece allows you to use your
hand(s) to control the tool. Round material
such as dowel rods, pipes or tubing have
a tendency to roll while being cut, and may
cause the bit to bind or jump toward you.
13. Never lay the power tool down until the
accessory has come to a complete stop.
The spinning accessory may grab the surface
and pull the power tool out of your control.
14. After changing the bits or making any
adjustments, make sure the collet
nut, chuck or any other adjustment
devices are securely tightened. Loose
adjustment devices can unexpectedly
shift, causing loss of control, loose rotating
components will be violently thrown.
15. Do not run the power tool while carrying
it at your side. Accidental contact with the
spinning accessory could snag your clothing,
pulling the accessory into your body.
16. Regularly clean the power tool’s air
vents. The motor’s fan will draw the
dust inside the housing and excessive
accumulation of powdered metal
may cause electrical hazards.
17. Do not operate the power tool
near flammable materials. Sparks
could ignite these materials.
18. Do not use accessories that require
liquid coolants. Using water or other liquid
coolants may result in electrocution or shock.
19. Avoid unintentional starting.
Prepare to begin work before
turning on the tool.
20. Do not depress the spindle lock when
starting or during operation.
21. Do not leave the tool unattended when the
switch is on. Turn off the tool, before leaving.
22. Use clamps (not included) or other practical
ways to secure and support the workpiece to
a stable platform. Holding the work by hand
or against your body is unstable and may
lead to loss of control and personal injury.
23. Contains Li-Ion battery. Battery must be
recycled or disposed of properly. Do not
open, crush, heat above 140° F or incinerate.
Page 6 For technical questions, please call 1-888-866-5797. Item 58162
SAFETY OPERATION MAINTENANCESETUP
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or
snagged rotating wheel, backing pad, brush
or any other accessory. Pinching or snagging
causes rapid stalling of the rotating accessory
which in turn causes the uncontrolled power
tool to be forced in the direction opposite of the
accessory’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged
or pinched by the workpiece, the edge of the
wheel that is entering into the pinch point can
dig into the surface of the material causing the
wheel to climb out or kick out. The wheel may
either jump toward or away from the operator,
depending on direction of the wheel’s movement
at the point of pinching. Abrasive wheels
may also break under these conditions.
Kickback is the result of power tool misuse
and/or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below.
1. Maintain a firm grip on the power tool
and position your body and arm to
allow you to resist kickback forces.
The operator can control kickback forces,
if proper precautions are taken.
2. Use special care when working corners,
sharp edges etc. Avoid bouncing and
snagging the accessory. Corners, sharp
edges or bouncing have a tendency
to snag the rotating accessory and
cause loss of control or kickback.
3. Do not attach a toothed saw
blade. Such blades create frequent
kickback and loss of control.
4. Always feed the bit into the material in
the same direction as the cutting edge
is exiting from the material (which is
the same direction as the chips are
thrown). Feeding the tool in the wrong
direction causes the cutting edge of
the bit to climb out of the work and pull
the tool in the direction of this feed.
5. When using rotary files, cut-off wheels,
high-speed cutters or tungsten carbide
cutters, always have the work securely
clamped. These wheels will grab if they
become slightly canted in the groove, and
can kickback. When a cut‑off wheel grabs,
the wheel itself usually breaks. When a rotary
file, high-speed cutter or tungsten carbide
cutter grabs, it may jump from the groove
and you could lose control of the tool.
Safety Warnings Specific For Grinding and
Abrasive Cutting-Off Operations
1. Use only wheel types that are
recommended for your power tool and
only for recommended applications.
For example: do not grind with the
side of a cut-off wheel. Abrasive cut‑
off wheels are intended for peripheral
grinding, side forces applied to these
wheels may cause them to shatter.
2. For threaded abrasive cones and plugs
use only undamaged wheel mandrels with
an unrelieved shoulder flange that are of
correct size and length. Proper mandrels
will reduce the possibility of breakage.
3. Do not “jam” a cut-off wheel or apply
excessive pressure. Do not attempt
to make an excessive depth of cut.
Overstressing the wheel increases the
loading and susceptibility to twisting or
snagging of the wheel in the cut and the
possibility of kickback or wheel breakage.
4. Do not position your hand in line with
and behind the rotating wheel. When
the wheel, at the point of operation, is
moving away from your hand, the possible
kickback may propel the spinning wheel
and the power tool directly at you.
Page 7For technical questions, please call 1-888-866-5797.Item 58162
SAFETYOPERATIONMAINTENANCE SETUP
5. When wheel is pinched, snagged or
when interrupting a cut for any reason,
switch off the power tool and hold the
power tool motionless until the wheel
comes to a complete stop. Investigate
and take corrective action to eliminate the
cause of wheel pinching or snagging.
6. Do not restart the cutting operation in
the workpiece. Let the wheel reach full
speed and carefully re-enter the cut. The
wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.
7. Support panels or any oversized
workpiece to minimize the risk of wheel
pinching and kickback. Large workpieces
tend to sag under their own weight. Supports
must be placed under the workpiece near
the line of cut and near the edge of the
workpiece on both sides of the wheel.
8. Use extra caution when making a
″pocket cut″ into existing walls or other
blind areas. The protruding wheel may
cut gas or water pipes, electrical wiring
or objects that can cause kickback.
Safety Warnings Specific For Wire Brushing Operations
1. Be aware that wire bristles are thrown
by the brush even during ordinary
operation. Do not overstress the
wires by applying excessive load to
the brush. The wire bristles can easily
penetrate light clothing and/or skin.
2. Allow brushes to run at operating
speed for at least one minute before
using them. During this time no one
is to stand in front or in line with the
brush. Loose bristles or wires will be
discharged during the run‑in time.
3. Direct the discharge of the spinning wire
brush away from you. Small particles and
tiny wire fragments may be discharged at
high velocity during the use of these brushes
and may become imbedded in your skin.
Vibration Safety
This tool vibrates during use. Repeated or
long-term exposure to vibration may cause
temporary or permanent physical injury,
particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury:
1. Anyone using vibrating tools regularly
or for an 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 medical or physical symptoms
related to vibration (such as tingling,
numbness, and white or blue fingers), seek
medical advice as soon as possible.
2. Do not smoke during 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 between different processes.
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. If any abnormal
vibration occurs, stop use immediately.
SAVE THESE INSTRUCTIONS.
Page 8 For technical questions, please call 1-888-866-5797. Item 58162
SAFETY OPERATION MAINTENANCESETUP
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. Never remove the grounding prong from the plug. 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
n0xxxx/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 ventilation ducts.
Charge on fireproof surface only.
WARNING marking concerning
Risk of Electric Shock.
Properly connect Charger’s power
cord to appropriate outlet.
Specifications
Battery 8VDC Li-ion 2000mAh
Charging Time 2 to 3 hours
Charger Input 120VAC, 0.6A
Charger Output 9.0VDC, 1.0A
No Load Speed n: 5000 - 30000/min,max
Collet Size 1/8"
Maximum Accessory Diameter Ø1-1/4" (Ø35mm)
Page 9For technical questions, please call 1-888-866-5797.Item 58162
SAFETYOPERATIONMAINTENANCE SETUP
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.
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Make sure that the Power Switch is in the off-position and unplug the tool from
it’s electrical outlet before performing any procedure in this section.
Functions
Power
Switch
Spindle
Lock
Housing
Cap
Collet
Nut
Speed
Buttons
Speed
Indicator
Battery
Indicator
Page 10 For technical questions, please call 1-888-866-5797. Item 58162
SAFETY OPERATION MAINTENANCESETUP
Recommended Accessory Speeds
Use Speed Buttons to adjust bit speed; RPM ranges are indicated by the Speed Indicator LED’s:
• 1 - 5000 RPM
• 2 - 10,000 RPM
• 3 - 17,000 RPM
• 4 - 23,000 RPM
• 5 - 30,000 RPM
Part Description Soft
Wood
Hard
Wood
Plastics,
Laminates
Steel
(ferrous
metals)
Aluminum,
Brass,
(non-ferrous
metals)
Stone/
Shell Ceramic Glass
Carving Burrs
Ø 1/4" Spherical or
Semi-Spherical
25 - 35K
25 - 35K 12 - 17K
12 - 17K
18 - 24K
Not Recommended
Ø 5/16" Spherical or
Semi-Spherical 12 - 17K
9 - 11K
12 - 17K
Ø 1/8" - Ø 3/16" Spherical,
Pointed or Cylindrical 25 - 35K 25 - 35K
Ø 1/4" - Ø 7/32" Cylindrical 12 - 17K
12 - 17KØ 5/16" Cylindrical 25 - 35K
Ø 3/8" Cylindrical 18 - 24K
Engraving Bits
Ø 1/32" Spherical or Cylindrical
25 - 35K
25 - 35K 18 - 24K
9 - 11K 12 - 17K Not Recommended
Ø 1/16" - Ø 1/32" Spherical
or Cylindrical 12 - 17K 12 - 17K
Ø 1/36" Cylindrical 25 - 35K 18 - 24K
Ø 1/16" Cylindrical 12 - 17K 12 - 17K
Diamond Coated Points
All Diameters 25 - 35K 18 - 24K Not Recommended 25 - 35K 25 - 35K 25 - 35K
Aluminum Oxide Grinding Stones (Pink, White, Orange, Brown)
All Sizes 25 - 35K N/R 18 - 24K 9 - 11K 12 - 17K 25 - 35K N/R
Silicon Carbide Grinding Stones (Blue, Green)
All Sizes Not Recommended 12 - 17K 25 - 35K 9 - 11K 12 - 17K 25 - 35K