Harbor Freight Tools 57990 Assembly instructions

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Email our technical support at: [email protected]
REMOTE CONTROL
BOAT
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. 21j
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©2021 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 57990
Important Safety Information
1. Keep your work area clean and
well lit. Cluttered benches and
dark areas invite accidents.
2. Do not operate Boat in explosive
atmospheres, such as in the presence of
flammable liquids, gases, or dust. Radio
Control electronics may create sparks
which may ignite the dust or fumes.
3. Keep bystanders and visitors away while
operating. Distractions can cause you
to lose control. Protect others in the
area from rapidly spinning propellers.
Provide barriers or shields as needed.
4. Stay alert. Watch what you are doing, and
use common sense when operating this
Boat. Do not use while tired or under the
influence of drugs, alcohol, or medication.
A moment of inattention while operating
may result in serious personal injury.
5. Dress properly. Do not wear loose clothing
or jewelry. Contain long hair. Keep your
hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or
long hair can be caught in propellers.
6. Avoid accidental starting. Be sure the
Power Switch is off before plugging
in. Carrying this Boat with your finger on
the Power Switch invites accidents.
7. Do not overreach. Keep proper footing
and balance at all times. Proper footing
and balance enables better control.
8. Use safety equipment. Always wear eye
protection. Always wear ANSI-approved
safety goggles and work gloves when using
or performing maintenance on this product.
9. Do not use the Boat if the Power Switch
does not turn it on or off. Any tool that
cannot be controlled with the Power Switch
is dangerous and must be replaced.
10. Disconnect the charging cable from the power
source before making any adjustments,
changing accessories, or storing the
Boat. Such preventive safety measures
reduce the risk of starting accidently.
11. Store out of reach of children and other
untrained persons. Never allow Children
to come in contact with this product.
12. Maintain with care and keep clean.
Properly maintained, this product is easier
to control. Do not use if damaged in any
way. Tag and “Do not use” until repaired.
13. Check for misalignment or binding of
moving parts, breakage of parts, and
any other condition that may affect the
Boat’s operation. If damaged, have it
serviced before using. Many accidents
are caused by poor maintenance.
14. Use only accessories that are
recommended by the manufacturer for
your model. Accessories that may be
suitable for one product may become
hazardous when used on another.
15. Contains Li-Ion battery. Battery must be
recycled or disposed of properly. Do not
open, crush, heat above 140° F or incinerate.
16. Product service must be performed only
by qualified repair personnel. Service or
maintenance performed by unqualified
personnel could result in a risk of injury.
17. When servicing this product, use only
identical replacement parts. Follow
instructions in the “Inspection, Maintenance,
And Cleaning” section of this manual.
Use of unauthorized parts or failure to
follow maintenance instructions may
create a risk of electric shock or injury.

Page 3For technical questions, please call 1-888-866-5797.Item 57990
Specific Safety Rules
1. Maintain labels and nameplates on
the product. These carry important
information. If unreadable or missing, contact
Harbor Freight Tools for a replacement.
2. Maintain a safe working environment. Make
sure there is adequate surrounding workspace.
3. Always keep all electrical cords away
from the propellers on this Boat.
4. If two Boats with the same radio frequency
are used (both with the same numbers
on the Transmitter and/or Receiver),
they must be at least 1640’ away
from one another in order to maintain
adequate transmission control.
5. Before using in the water perform
a distance check to be certain that
you can maintain radio control at
least 25’ from Transmitter to Boat.
6. NEVER run Boat in swimming pools
or bodies of water where people
are swimming or playing.
7. NEVER run Boat in flowing water, such
as a river or stream. Run Boat in a lake.
Be mindful of wildlife or nearby fishermen.
8. NEVER recharge
non-rechargeable batteries.
9. Do not install old and new batteries
together. Do not install alkaline, carbon-
zinc or rechargeable batteries together.
Position batteries in proper polarity. Do
not use swollen or leaking batteries.
10. Remove batteries from both the
Boat and the Transmitter if they will
not be used for a long period.
11. People with pacemakers should
consult their physician before using
this product. Electromagnetic fields in
close proximity to a heart pacemaker
could cause interference to or failure of
the pacemaker. In addition, people with
pacemakers should adhere to the following:
• Avoid operating this Boat alone.
• Don’t use this product with the
power switch locked on.
• If powered via a power cord be certain
that the tool is properly grounded.
A ground fault interrupt (GFCI)
system is also a good precaution.
This inexpensive device is a good
safety measure because it prevents
a sustained electrical shock.
• Properly maintain and inspect all tools
before use to avoid electrical shock.
12. Never pick up, or lay down the Boat until
its Propellers come to a complete stop.
Moving parts can grab the surface and pull
the Boat out of your control and there is the
possibility of damage, or personal injury.
When handling this Boat, be sure to keep
hands clear of propellers at all times.
13. This product is for supervised use by ages
8 and up. Children must be properly trained in
safety issues and operating procedures before
being allowed to use this product and must
always be supervised by a responsible adult.
14. WARNING: Always remove the Battery
from the Battery Compartment
when it is being charged.
15. Always wear work gloves if removing
the Propellers. The blades can be very
sharp. If the Boat has been recently used,
let the Motors as well as both Drive Shafts
cool at least 15 minutes before touching.
16. Do not recharge the Battery if it is hot.

Page 4 For technical questions, please call 1-888-866-5797. Item 57990
Set Up
Unpacking
1. Carefully slide the cardboard support
containing the Boat out of the packaging.
2. Remove the Remote.
3. Remove the Boat from the cardboard. If
any part does not slide out easily, stop and
clear the obstruction before proceeding.
Battery Charging and Installation
1. Remove Battery from package.
2. Connect Battery to USB Cable,
then plug Cable into a USB power
source capable of 2A output.
Battery
USB
Cable
3. While Battery is charging, red LED
light on charger is on. When fully
charged, LED light turns off. Charging
takes approximately 2 hours.
4. When charging is complete, disconnect
Battery from USB Cable and power source.
5. To install Battery, turn and
open Deck Cover latch.
Latch
6. Place Battery into compartment within Deck
housing, and secure it underneath both clips.
Battery
Compartment
Battery
Clips
7. Connect battery wire to housing wire.
Wiring Connection
Remote Control
1. Make sure Remote Control is turned OFF.
2. Push open the battery cover on
the back of the Remote.
3. Insert four AA batteries (not included)
into battery compartment,
following indicated polarity.
4. Push battery cover back into place and
make sure it is securely closed.

Page 5For technical questions, please call 1-888-866-5797.Item 57990
Specifications
Boat Battery 7.4 V, 1500 mAh, Li-ion
Remote Battery 4 “AA” batteries (sold separately)
Charger Output 7.4V / 1.3A
Remote Control Frequencies 2420 - 2465 MHz
Control Range 325'
Run Time 8 minutes per full charge
Components and Controls
Power
Switch
LED
Indicator
Throttle
Steering Trim
Buttons
Steering
Wheel
Deck
Cover
Hull
Rudder
Steering Rate
Button
Propeller

Page 6 For technical questions, please call 1-888-866-5797. Item 57990
Operation
Pairing Boat to Remote
CAUTION! Keep spectators a safe distance away during use.
Note: The boat will not operate until placed in water.
Note: Before each use, follow these steps to pair the Boat with the Remote:
1. Ensure that the Remote is turned off.
2. Place Boat in the water and stand behind
it with the Propeller facing you.
3. Turn Remote on. The red indicator light on
the Remote will flash once then remain lit,
indicating that pairing was successful.
4. Operate the controls on the Remote
to make sure the Boat is working.
Note: If the Remote’s red light flashes
continuously and the Boat does not move,
make sure that Battery is connected
properly. Repeat pairing process.
Note: When the Boat’s battery is low, the Remote
will emit a beeping sound. This indicates that the
Boat should be brought back to shore immediately.
Note: Electronic equipment or other radio
control devices may affect the performance of
your Remote Control Boat. Find an area free
of such interference when operating Boat.
Operating Boat
CAUTION! Keep spectators a safe distance away during use.
Note: The boat will not operate until placed in water.
Note: Read through this section completely and get familiar with the controls BEFORE using Boat.
1. To start the Boat, place in water and
pair to Remote as explained above.
2. Push Throttle forward to move the Boat
in a forward direction. Pull Throttle
back to move the Boat in reverse.
Throttle
3. Turn the Steering Wheel left to make
the boat turn left, and turn Wheel
right to make the boat turn right.
4. Use Trim buttons to correct Boat’s course.
If Boat veers to the right, press the
upper button until the Boat straightens
itself out. The lower button will correct
course if Boat veers to the left.
Steering Trim
5. Use Steering Rate button to control Boat’s
steering limits when making turns. Use
button as follows to control turning radius:
a. One Beep is 80% steering for high
speed (larger turning radius).
b. Two Beeps is 100% steering for tighter
turning (smaller turning radius).
Steering Rate

Page 7For technical questions, please call 1-888-866-5797.Item 57990
Maintenance
Cleaning and Storage
1. After Use, use a mild detergent on a clean
cloth to remove any dirt from the Boat.
2. Remove batteries from Remote Control
and Boat, then store Boat and accessories
in a dry area away from direct sunlight
and out of the reach of children.
Battery Removal
Contains Li-Ion battery. Battery must be
recycled or disposed of properly.
1. To remove Battery, turn and open
the Deck Cover latch.
Latch
2. Disconnect battery wire from housing wire
and remove Battery from its compartment.
Wiring Connection
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
Warning! Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
• Consult an experienced radio/TV technician for help.
The responsible party in the United States for compliance of the equipment is:
Harbor Freight Tools, 26677 Agoura Road, Calabasas, CA 91302
1-888-866-5797 • http://www.harborfreight.com

26677 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.
Record Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Replacement parts are not available. Reference UPC 193175429735