MDS XT12-HR 2017, User Manual And Manual

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1300 4X4 4X4
Breakaway Switch
By law, all trailers with an ATM of 2000kg or greater must have a “Breakaway System” to halt the trailer in the event it
becomes detached from the tow vehicle whilst traveling. Your caravan is fitted with this system with the switch
mounted on the drawbar with a steel wire lanyard to connect to your tow vehicle. In the event that the caravan
becomes detached, the lanyard will pull the pin from the breakaway switch and the onboard batteries will activate the
brake system. The lanyard must be attached to a solid part of the vehicle. It is a mandatory requirement that power be
supplied by the tow vehicle to the breakaway power source while towing. This is done via the 50amp Anderson Plug
on the drawbar. Consult a qualified auto electrician to ensure this is fitted to your tow vehicle.
In NSW there is an additional requirement that the breakaway power source be monitored from the driver position with
a minimum of a “visual alarm” for low battery voltage. Consult a qualified auto electrician to ensure this is fitted to your
vehicle.
Breakaway Switch Anderson Plug
CAUTION:
•
DO NOT CONNECT THE BREAKAWAY LANYARD TO THE SAME POINT AS THE SAFETY CHAIN
SHACKLES.
•
DO NOT USE THE BREAKAWAY AS AN ALTERNATIVE TO THE HANDBRAKE AND DO NOT REMOVE
THE PIN AS AN ALTERNATIVE SECURITY MEASURE. REMOVING THE PIN WILL RAPIDLY DISCHARGE
THE BATTERIES.
• IT IS A MANDATORY REQUIREMENT THAT THE BREAKAWAY BATTERY SOURCE BE CHARGED
DURING TOWING.
•
NSW REQUIRES A BATTERY MONITOR VIEWABLE FROM THE DRIVERS POSITION WITH A MINIMUM
OF A VISUAL ALARM FOR LOW BATTERY VOLTAGE
Hand Brake
Parking brakes are mechanically operated by cable means. The cable attachment occurs outside of the brake backing
plate. Cable force applied to the parking lever creates a torque through the pivot pin and cam assembly. Torque
transferred to the parking cam results in a spreading force between the primary and secondary shoes. The shoes in
turn, move towards the drum until contact is made. Friction generated between the drum and lining contact surface
results in parking brake capability.
Use the cable adjuster to give sufficient tension to be able to set the handbrake lever on the last two notches of the
coupling or handbrake is 1/3 raised when unladen. This needs to be checked again when the trailer or caravan is
loaded. If the cable is too tight, the brakes will be applied as the axle moves backward under spring deflection.