LEAS STABILISER
Highlights:
•
Applies caravan/trailer brakes in critical snaking situations.
•
Suitable for any caravan or trailer up to 2.5 tonnes.
•
Improves safety by preventing caravan or trailer roll.
•
Peace of mind while towing especially in adverse weather conditions.
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Designed and manufactured in Germany.
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Allows for lower towing weight/trailing weight ratio.
Anti-Snaking Device for Caravans and Trailers
Don’t let this happen to you!
The LEAS Stabiliser
If you have ever experienced a ‘snaking situation’
while towing a caravan or trailer you should see the
benefit of the LEAS stabiliser.
The LEAS stabiliser
works on the same principle as ESP (Electronic Stability
Assistance) on a car, by applying controlled braking
in critical situations. It is an electro-mechanical device,
which detects the start of a snaking movement
and immediately applies the brakes of the caravan or trailer.
Unlike other anti-snake devices, which work as constant
friction dampers on every movement, the LEAS
Stabiliser applies the caravan/trailer brakes only when
lateral movement is detected. This is performed using
the patented electronic movement sensor and motor assembly.
Sudden hard braking, gusting winds and sharp steering,
even at slow speed can cause snaking move
ments,
which can result in jack-knifing or rolling.
The LEAS stabiliser is very popular in Germany and
comes recommended by the German consumer association
“Stiftung Warentest”, the German test institute
“TUV-Rhineland” and the German auto club “ADAC”.
How it Works
The LEAS Stabiliser works using a large spring charged
by a cam on an electric motor, when the snake is
detected the motor turns the cam and the spring
is released. This activates 20% of the vans braking
capability. Once the lateral movement of the snake is
no longer detected the motor turns the cam and the
spring is recharged ready for the next release.
LEAS provides stability while towing without losing flexibility.
It brakes the caravan/trailer helping to bring the vehicle under control.
normal circumstances the caravan is liable to topple or roll.
With the LEAS Stabiliser the
car avoids the obstacle and the van follows
safely in line with the car.
General Description
The LEAS (Lubs Electronic Trailer Stabiliser) comprises
a spring actuator with actuating motor
(1), the corresponding sensing control
(2), and electronic control unit (ECU).
The spring actuator and actuating motor
are attached by means of two U-bolts
(3) to the front of
the A-frame of the trailer. The cable at the end of the
spring actuator is clamped under slight tension to the
main brake rod of the trailer. The actuating motor is
enclosed in a protective housing. The ECU is installed
transversely and as far rearward as possible either inside
or outside the trailer. It is connected to the actuating
motor by means of an electric cable
(4). Supplied is a buzzer
(5) to be fitted in the tow vehicle. It emits a
continuous tone, when the system has activated the
trailer brake, so alerting the driver.
Power is supplied by the towing vehicle to always pro
vide
sufficient amperage even if the trailer battery is
flat. The sensor unit (ECU) continuously monitors the
dynamic stability of the trailer. As soon as the trailer
becomes unstable (i.e. snaking occurs) the electronic
control unit gives a signal to the actuating motor to
release the spring and thus activate the braking system
of the trailer (with 20% of its full braking performance).
The car/trailer combination is stretched and reverts to a stable condition. The acoustic warning
signal ensures that the driver knows that the braking
system has been deployed by the LEAS unit.
After snaking has been brought under control, a cam
on the actuator is rotated back into its stand-by position
by means of the electric motor and this reloads
the spring ready for further use. The process is then complete.
The LEAS system is unable to work if the
brakes of the trailer have faded, if they are not correctly
adjusted or if they are badly worn.
Positioning
The lateral movement sensor is positioned at the rear of the caravan/
trailer, with the electric motor and high power spring on the A-frame at
the front. Power for the system is taken directly from the towing
vehicle engine battery, as the required amperage is to great to be
taken through a normal tow hitch connector.
