6
4
WIRING GAUGE GUIDE
Whilst Tow-Pro wiring harnesses are available for most vehicles on the market, some
older vehicles will require manual wiring. For this purpose REDARC offers the TPH-025
Universal Wiring harness for custom installation.
Below is a diagram outlining the required wire cross sectional areas for the Tow-Pro
®
Liberty custom installations detailed in Section 2.2.
All wire ratings refer to the
minimum
required cross sectional area of copper only
(not including insulation). Always use a wire gauge equal to or greater (in cross
sectional area) than what is specified in this guide.
5
PERIODIC MAINTENANCE/CHECKS
Ensure that your trailer brakes are installed and are operating correctly:
Improperly installed and/or faulty trailer brakes can cause erratic vehicle or trailer
behaviour with the potential to cause a road accident. For this reason, it is of utmost
importance that your trailer braking system be installed/maintained by a qualified
installer.
Always check brakes at low speed each time a trailer is attached to your vehicle.
Immediately After Installation (To be done by a qualified Auto-Electrician)
Test the installation/vehicle wiring. Testing your vehicle wiring is best done by connecting
a test light (Max 21W filament globe) to the brake output (BLUE Wire) at the trailer plug,
pushing the manual override and having someone check that the test lamp lights up.
Before each trip
It is important to ensure that your system is operating correctly before you set out. The
following should be checked, along with standard mechanical maintenance, each time
you attach your trailer:
•
Correct brake light operation on both your vehicle and trailer
•
Correct operation and setting of the electric brake controller
•
Correct operation of your trailer brakes
•
Check that your breakaway system is operating correctly and that the breaka-
way battery is healthy (if applicable)
•
Ensure that the tow hitch, and safety chains and weight distribution systems
are setup correctly
Periodically
It is important to have a qualified technician check the function of your trailer
system on a periodic basis to ensure that everything is operating correctly. REDARC
recommend that you visit a qualified technician before the beginning of each holiday
season to ensure that any towing aids or systems are working correctly.
Other considerations
Please consider the below items whilst towing a trailer:
•
Ensure that your vehicle is capable of towing the trailer
•
Ensure that you adjust your driving style to allow more time to change lanes
and brake
•
Always remember that your electric brake controller is designed to supple-
ment your vehicle brakes;
do NOT use the Tow-Pro
®
Liberty manual override
in place of your vehicle foot brake
6
FREQUENTLY ASKED QUESTIONS
The LED is flashing Blue/Green, what does this mean?
A Blue/Green flash sequence indicates that the unit is in the process of calibration, as
the unit becomes more confident in it’s calibration the Blue will appear for longer. Keep
driving normally and eventually this will turn to a solid Blue.
Is the Tow-Pro
®
Liberty approved to use with the my Electronic Trailer Stability
Control system?
The Tow-Pro
®
Liberty is approved for use with the AL-KO ESC and the Dexter Sway
Control systems. Please visit the manufacturer’s website for more information.
Will it work with electric over hydraulic trailer brakes?
Yes, please see Section 2.2.3 of this manual.
Can it be mounted in any orientation? How do I set the levelling of the main unit?
Yes, the unit can be installed inside the vehicle at any angle, provided it is firmly
secured and in a location which allows access to the intended remote head location.
Please see Sections 2.1, 2.3 and 2.4 of this manual for more information.
My vehicle has shared tail/brake lights, will the Tow-Pro
®
Liberty work OK?
Yes, the Tow-Pro
®
Liberty is designed to operate correctly from both standard and shared
tail/brake lights.
My trailer is 3.5 tons fully loaded; Is the Tow-Pro
®
Liberty strong enough to stop
that much weight safely?
The controller is capable of supplying 2-axle setups at 12V input up to the maximum
rated braking ability of the brakes. You must also ensure that your trailer brakes are
adequate for the trailer load.
Can the remote head cable be extended?
Yes, the remote head cable is a standard RJ45 network cable and can be replaced by
an off the shelf cable up to 5m in length. If the cable used is longer than 1m however
we recommend using a ferrite bead clipped onto the cable as close as possible to
the main unit.
Can the braking level of the manual over-ride be adjusted?
Yes, the manual override can be adjusted whilst it is being applied by turning the
control knob. For more information on manual override please see Section 3.3 of this
manual.
Will my trailer brakes work while I am reversing?
The Tow-Pro
®
Liberty is designed to apply the trailer brakes whether the vehicle is
travelling forward or in reverse. The effectiveness of the brake application in reverse
will depend on the mechanical design of your particular electric brake system.
I have a 2 axle trailer, is the Tow-Pro
®
Liberty suitable for my trailer?
Yes, the Tow-Pro
®
Liberty is designed to operate up to and including 2-axle trailers.
Can I connect the Tow-Pro through my cigarette lighter socket?
No, as most ‘power sockets’ are rated around 10A which is insufficient to power
trailer brakes and stop lamps circuits. In addition, these outlets may not be powered
continuously and do not make a reliable contact.
7
CHECKING THE PRODUCT SERIAL NUMBER
The image below indicates where the Product Serial Number on the Main Unit and on
the Product Packaging.
The Serial Number Label contains the Part Number (circled in BLUE below) and the
Serial Number (circled in RED below).
The first 4 digits of the serial number indicate the YEAR and MONTH of manufacture,
in the form YYMM.
Red
1.6mm
²
14AWG
White
1.6mm
²
14AWG
3mm
²
Blue
12AWG
3mm
²
Black
(12V)
12AWG
in
mm
Diagram
Scale
MADE IN AUSTRALIA BY
REDARC ELECTRONICS
PH (08)83224848
EBRH-ACCNA
2005003460069
