Harbor Freight Tools 47821 User Manual
DUAL SIDE GATE OPENER
®
47821
ASSEMBLY AND OPERATING INSTRUCTIONS
Gate and Fence not supplied;
only Gate Opener components are included.
3491 MISSION OAKS BLVD., CAMARILLO, CA 93011
VISIT OUR WEB SITE AT HTTP://WWW.HARBORFREIGHT.COM
Copyright © 2005 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.
For technical questions and replacement parts, please call 1-800-444-3353
Contents
UNPACKING .................................................................................................... 2
SPECIFICATIONS ............................................................................................ 3
SAVE THIS MANUAL ....................................................................................... 3
GENERAL SAFETY RULES ............................................................................ 4
INSTALLATION INSTRUCTIONS .................................................................... 7
Preparation ................................................................................................. 7
Providing a Power Source ......................................................................... 8
Mounting Actuator Arms ........................................................................... 8
Mounting the Control Box ....................................................................... 11
Placement of Accessories ...................................................................... 11
Wire Connections to the Control Box .................................................... 11
Emergency Battery .................................................................................. 13
Transformer Connection ......................................................................... 13
GATE SETTINGS ........................................................................................... 14
Adjusting Motor Thrust ........................................................................... 14
Automatic Gate Wing Closing ................................................................. 14
PROGRAMMING ........................................................................................... 15
Programming the T1 Button - Remote Control ...................................... 15
Programming the T1 Button - Control Panel ......................................... 15
Programming the T2 Button - Remote Control ...................................... 16
Programming the T2 Button - Control Panel ......................................... 16
OPERATING INSTRUCTIONS ....................................................................... 17
“Manual” Mode ......................................................................................... 17
“Automatic” Mode .................................................................................... 17
INSPECTION, MAINTENANCE, AND CLEANING ........................................ 17
TROUBLESHOOTING ................................................................................... 18
SCHEMATIC DIAGRAM ................................................................................ 19
PARTS LIST ................................................................................................... 19
ASSEMBLY PARTS ....................................................................................... 20
UNPACKING
When unpacking, check to make sure that all the parts are included. Refer to the Assembly
section, and the Assembly Drawing and Parts List at the end of this manual. If any parts are
missing or broken, please call Harbor Freight Tools at the number on the cover of this manual
as soon as possible.
SKU 47821 For technical questions, please call 1-800-444-3353 Page 2
SPECIFICATIONS
Gate Size 8.2 feet (maximum) for each gate wing
Gate Weight 550 lb. (maximum) for each gate wing
Input Voltage/ Power Consumption
(AC/ DC Transformer)
Operating Power/ Circuit Protection
(Circuit Board)
Actuators 2 - 12 VDC; 16 inch stroke
Motor 12 VDC, 34 inch cable
Arm Dimensions 30” (L) x 4” (W) x 6.25” (H)
Warning Light 12 V, 10 W Bulb
Weight 26.8 lb.
Operating Modes “Manual Mode” Push button (remote), or key open, stop and
Features 1 - Programmable Controller (Printed Circuit Board, CTR42s) with
Optional Accessories
(Not Included)
110 VAC, 60 Hz, 75 Watts/ 1.6 Amps Fused
12 VDC/ 10A Fused
1.
close.
“Automatic Mode” Push button (remote) or key open with adjustable
2.
automatic time delayed close.
control box. Controller has two adjustable dials (pot switches/
“Ampere 1, 2”) for motor’s open/closing strength. One adjustable
dial for (pot switch/ “Time”) setting the automatic time delayed
closing feature.
2 - Two channel transmitters (require one 12V (23A) battery each,
included)
1 - Key switch, to open gate wings without the Remote Control
Transmitters.
1 - Blinking yellow warning light; Quick flashes (blinking) indicate the
gates are opening, slow flashes indicate the gates are closing.
1 - Motor Unlock Key (triangular shaped), disengages the motors to
open gates manually in case of emergency, or power failure.
- Single wing gate operation (T2), or dual wing gate operation (T1).
Photocells (1 pair).
This feature provides additional safety for use around small children or
disabled persons. This accessory transmits an invisible infrared beam
across the gates threshold, and when the beam is interrupted the gates
will automatically stop closing.
SAVE THIS MANUAL
You will need the manual for the safety warnings and precautions, assembly instructions,
operating and maintenance procedures, parts list and diagram. Keep your invoice with this
manual. Write the invoice number on the inside of the front cover. Keep the manual and
invoice in a safe and dry place for future reference.
SKU 47821 For technical questions, please call 1-800-444-3353 Page 3
GENERAL SAFETY RULES
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS. Failure to follow all instructions
listed below may result in electric shock, fire, and/or serious injury.
SAVE THESE INSTRUCTIONS
Work Area
1. Keep your work area clean and well lit. Cluttered benches and 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 bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control. Protect others in the work area from debris
such as chips and sparks. Provide barriers or shields as needed.
Electrical Safety
4. Avoid body contact with grounded surfaces such as pipes, radiators, ranges, and
refrigerators. There is an increased risk of electric shock if your body is grounded.
5. Do not expose power tools to rain or wet conditions. Water entering a power tool
will increase the risk of electric shock.
6. Grounded tools must be plugged into an outlet properly installed and grounded in
accordance with all codes and ordinances. Never remove the grounding prong or
modify the plug in any way. Do not use any adapter plugs. Check with a qualified
electrician if you are in doubt as to whether the outlet is properly grounded. If the
tools should electrically malfunction or break down, grounding provides a low resistance
path to carry electricity away from the user.
7. Double insulated tools are equipped with a polarized plug (one blade is wider than
the other). This plug will fit in a polarized outlet only one way. If the plug does
not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified
electrician to install a polarized outlet. Do not change the plug in any way. Double
insulation eliminates the need for the three wire grounded power cord and grounded
power supply system.
8. Do not abuse the Power Cord. Never use the Power Cord to carry the tools or pull
the Plug from an outlet. Keep the Power Cord away from heat, oil, sharp edges,
or moving parts. Replace damaged Power Cords immediately. Damaged Power
Cords increase the risk of electric shock.
SKU 47821 For technical questions, please call 1-800-444-3353 Page 4
9. When operating a power tool outside, use an outdoor extension cord marked “W-
A” or “W”. These extension cords are rated for outdoor use, and reduce the risk of
electric shock.
Personal Safety
10. Stay alert. Watch what you are doing, and use common sense when operating a
power tool. Do not use a power tool while tired or under the influence of drugs,
alcohol, or medication. A moment of inattention while operating power tools may result
in serious personal injury.
11. 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 moving parts.
12. Avoid accidental starting. Be sure the Power Switch is off before plugging in.
Carrying power tools with your finger on the Power Switch, or plugging in power tools
with the Power Switch on, invites accidents.
13. Remove adjusting keys or wrenches before turning the power tool on. A wrench
or a key that is left attached to a rotating part of the power tool may result in personal
injury.
14. Do not overreach. Keep proper footing and balance at all times. Proper footing and
balance enables better control in unexpected situations.
Tool Use and Care
15. 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.
16. Do not force the tool. Use the correct tool for your application. The correct tool will
do the job better and safer at the rate for which it is designed.
17. Do not use the power tool 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.
18. Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive safety
measures reduce the risk of starting the tool accidentally.
19. Store idle tools out of reach of children and other untrained persons. Tools are
dangerous in the hands of untrained users.
20. Maintain with care. Keep cutting tools sharp and clean. Properly maintained tools
with a sharp cutting edge are less likely to bind and are easier to control. Do not use a
damaged tool. Tag damaged tools “Do not use” until repaired.
SKU 47821 For technical questions, please call 1-800-444-3353 Page 5
21. Check for misalignment or binding of moving parts, breakage of parts, and any
other condition that may affect the tool’s operation. If damaged, have the tool
serviced before using. Many accidents are caused by poorly maintained tools.
22. Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one tool may become hazardous when used on
another tool.
Service
23. Gate Opener service must be performed only by qualified repair personnel. Service
or maintenance performed by unqualified personnel could result in a risk of injury.
24. When servicing the Gate Opener, 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.
SPECIFIC SAFETY RULES
1. Maintain labels and nameplates on the Gate Opener. These carry important
information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
2. Always wear ANSI-approved safety impact eye goggles and heavy work gloves
when using tools to install the Gate Opener. Using personal safety devices reduce
the risk for injury.
3. Maintain a safe working environment. Keep the work area well lit. Make sure there
is adequate surrounding workspace. Always keep the work area free of obstructions,
grease, oil, trash, and other debris. Do not use power tools in areas near flammable
chemicals, dusts, and vapors. Do not use power tools in a damp or wet location.
4. Avoid electrical shocks. Always turn off the circuit breaker to the Gate Opener
Control Box before performing any inspection, maintenance, or cleaning procedures
of the Gate Opener.
5. Periodically check all nuts, bolts, and screws on the Gate Opener for tightness.
Vibration during gate movement may cause these to loosen.
6. Install this product on a proper surface. Locate the Gate Opener Arms on a flat,
vertical, and solid surface of the fence gate column that is capable of supporting the
weight of the gate being pulled open.
7. Install and use this product with care. Harbor Freight Tools is not responsible for any
damage or personal injury due to the incorrect installation or improper operation of this
product.
8. Avoid vehicle damage. Any vehicle parked within striking range of the gate wings under
movement could be damaged.
SKU 47821 For technical questions, please call 1-800-444-3353 Page 6
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