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19113C-B
CORDLESS
JET FAN BLOWER
64942
20v LITHIUM-ION
tM
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 near the assembly diagram (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. 24f
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
©
2024 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 64942
SaFety OperatiOn MaintenanceSetup
table of contents
Safety ........................................................................ 2
Specifications ............................................................5
Setup .........................................................................5
Operation ................................................................... 6
Maintenance ..............................................................7
Warranty ....................................................................8
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.
instructions pertaining to a risk of Fire, electric Shock, or injury to persons
iMpOrtant SaFety inStructiOnS
When using an electrical appliance, basic precautions should always be followed, including the following:
reaD aLL inStructiOnS BeFOre uSinG tHiS appLiance
to reduce the risk of fire, electric shock, or injury:
1. Do not leave appliance when Battery Pack
is connected. Remove Battery Pack when
not in use and before servicing.
2. Do not use on wet surfaces. Do not
expose to rain. Store indoors.
3. Do not allow to be used as a toy. Close attention
is necessary when used by or near children.
4. Use only as described in this manual. Use only
manufacturer’s recommended attachments.
5. Do not use with damaged Battery Pack.
If appliance is not working as it should, has been
dropped, damaged, left outdoors, or dropped
into water, return it to a service center.
6. Do not handle appliance with wet hands.
7. Do not put any object into openings. Do not use
with any opening blocked; keep free of dust, lint,
hair, and anything that may reduce air flow.
8. Keep hair, loose clothing, fingers, and all parts of
body away from openings and moving parts.
9. Turn off all controls before removing Battery Pack.
10. Use extra care when cleaning on stairs.
11. Do not use to pick up flammable or
combustible liquids, such as gasoline, or
use in areas where they may be present.
12. FOR HOUSEHOLD USE ONLY.
13. remove all hard objects from work
area. Do not blow debris in the direction
of people, animals or property.
14. Stay alert, watch what you are doing and use
common sense when operating an appliance.
Do not use an appliance while you are tired or under
the influence of drugs, alcohol or medication.
A moment of inattention while operating
appliances may result in serious personal injury.

Page 3For technical questions, please call 1-888-866-5797.Item 64942
SaFetyOperatiOnMaintenance Setup
15. Maintain labels and nameplates
on the appliance. These carry important safety
information. If unreadable or missing, contact
Harbor Freight Tools for a replacement.
16. 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.
17. 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.
18. Battery appliance 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
appliance. Carrying the appliance with your
finger on the switch or energizing appliance
that have the switch on invites accidents.
b. 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.
c. use appliances only with specifically
designated battery packs. Use of any other
battery packs may create a risk of injury and fire.
d. 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.
e. 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.
f. Do not use a battery pack or appliance that
is damaged or modified. Damaged or modified
batteries may exhibit unpredictable behavior
resulting in fire, explosion or risk of injury.
g. Do not expose a battery pack or appliance
to fire or excessive temperature.
Exposure to fire or temperature above
140°F may cause explosion.
h. Follow all charging instructions and do
not charge the battery pack or appliance
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.
i. Have servicing performed by a qualified
repair person using only identical
replacement parts. This will ensure that
the safety of the product is maintained.
j. Do not modify or attempt to repair the
appliance or the battery pack except as
indicated in the instructions for use and care.
k. 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.
19. 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.

Page 4 For technical questions, please call 1-888-866-5797. Item 64942
SaFety OperatiOn MaintenanceSetup
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 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.
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
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
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.

Page 5For technical questions, please call 1-888-866-5797.Item 64942
SaFetyOperatiOnMaintenance Setup
Specifications
Battery Type Bauer 20 V Li‑Ion
Charger Type Bauer 20 V Li‑Ion
Electrical Rating 20 VDC
Maximum Flow Rate 338 CFM
Maximum Air Speed 96 MPH
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:
turn the power Switch of the appliance off and remove Battery pack
before performing any procedure in this section.
attaching Blower tube
1. Slide Tube over the outlet, lining up the latch
with the indent on the Tube. Press the parts
together until the latch clicks into place.
cautiOn! tO preVent inJury: Do not use
the Blower without the tube attached. the tube
helps prevent contact with internal moving parts.
2. Slide the Tube Extension over the end
of the Tube, aligning the tab on the Tube
with the hole on the Tube Extension.
tube
tube
extension
Outlet
Latch
tab
charging
Charge battery before using this tool. Follow instructions included with battery charger.
Functions
tube
tube
extension
Switch
Latch
tab

Page 6 For technical questions, please call 1-888-866-5797. Item 64942
SaFety OperatiOn MaintenanceSetup
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.
tO preVent SeriOuS inJury FrOM FLyinG DeBriS:
Wear long pants, long sleeves and protective footwear. Wear anSi-approved
safety goggles, dust mask, hearing protectors, and gloves.
Blower Operation
tO aVOiD SeriOuS inJury anD prOperty DaMaGe:
inspect the area before using the Blower. remove all hard objects from work area.
Do not blow debris in the direction of people, animals or property.
use both hands when operating Blower.
1. Assemble Blower according to
Assembly Instructions on page 5.
cautiOn! tO preVent inJury: Do not use
the Blower without the tube attached. the tube
helps prevent contact with internal moving parts.
cautiOn! tO preVent inJury: Wear anSi-
approved safety goggles during use.
note: Rake or sweep to loosen debris if necessary.
2. Make sure Switch is in the OFF‑position (O),
then slide Battery Pack into slot on back
of Blower until it clicks into place.
3. Hold Blower with both hands, with the
Tube several inches off the ground.
4. Press the Switch to either the i or ii setting,
depending on the desired speed.
5. Sweep from side to side.
6. Turn Switch to O when done.
7. When finished, to prevent accidents:
• Remove battery pack.
• Wipe external surfaces of the appliance
with clean cloth. Store in an indoor
dry area out of reach of children.
tM

Page 7For technical questions, please call 1-888-866-5797.Item 64942
SaFetyOperatiOnMaintenance Setup
user-Maintenance and Storage
procedures not specifically explained in this manual must
be performed only by a qualified technician.
tO preVent SeriOuS inJury FrOM acciDentaL OperatiOn:
turn the power Switch of the appliance off and remove Battery pack
before performing any procedure in this section.
tO preVent SeriOuS inJury FrOM appLiance 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 appliance. Check for:
• 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 appliance with clean cloth. Store in an
indoor dry area out of reach of children.
3. All parts are permanently lubricated.
Do not use additional lubrication.
4. 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.
5. Li-ion Battery MuSt Be recycLeD Or
DiSpOSeD OF prOperLy.
Do not short, incinerate or open battery.
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 193175488435.

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.
26677 agoura road • calabasas, ca 91302 • 1-888-866-5797
tM
