How Do The Brakes Work On A Caravan/trailer?


4 Answers

Joe Gilbert Profile
Joe Gilbert answered
Brakes on a caravan work in a similar way to those on a bicycle, with a slightly complicated prelude. The system is known as a rod and cable system. In a nutshell, the brake's pads are attached by a cable under the van to the hitch (the place where the caravan is connected to the car). There is a space between the hitch and the brake. If you brake in the car, this space reduces; pressure is placed on the cable which pulls the brake pads together. This is released when the car starts moving again and the space is widened.

Now to explain a bit more fully: The brake pads are connected by a cable known as a Bowden cables. This cable then runs under the van to the front to the hitch, which was defined earlier. The hitch mechanism involves a sliding tube. If you put your foot on the brake the van continues forward until the small gap is reduced. This pressure pushes the tube back. This pressurises the brake rod which pulls the brakes onto the wheel which slows down the caravan, just as pulling on brake cables on a bicycle tightens the brake pads on the wheel.

When the car accelerates, the gap on the hitch increases, the pressure on the sliding tube is released, the brake cable is pulled back, the brake pads are released and the caravan starts moving again. A knocking sound upon braking is the result of the hitch mechanism being faulty and the sliding tube not being properly compressed. This will probably need replacing.

Caravans do have brakes and a caravan cannot just stop when the car stops with the hitch tight like a trailer because this could cause damage to both the caravan and the vehicle you are driving.
Anonymous Profile
Anonymous answered
I have a braked Trailer and when I reverse the car, the connecting part moves backward through a rubber sleeve and apples the brake by way of a fulcrum operation similar and connected to the handbrake mechanism. Great if you want to stop sliding backward, but not discovered how to adjust the mechanism, or a lever to stop the brake applying when you WANT TO REVERSE!!
Any clues?
Anonymous Profile
Anonymous answered
Http:// If you want to see how it works log onto the attached web site and see the drawings / information. Happy caravaning people.

Keith,  Norwich.
Akshay Kalbag Profile
Akshay Kalbag answered
If the caravan or trailer was registered after June 30, 1990 and its weight (which is known as gross trailer mass and abbreviated as GTM) exceeds 750 kilograms but is less than two tonnes, it should have an efficient braking system.

On the other hand, if the gross trailer mass of the trailer or the caravan exceeds two tonnes, the braking system can either be an overrun system or it can be one which can be operated from the driver's seat.

However there are fewer trailers and caravans whose gross trailer mass is more than two tonnes which have overrun brakes. The brakes of two-tonne-plus trailers or caravans are usually operated from the seat of the driver. They remain applied automatically for a duration of about fifteen minutes in the event of an accidental break-away.
thanked the writer.
Peter Normanton
Peter Normanton commented
What an incredibly poor answer to "HOW" do the brakes work on a caravan! This answer says nothing at all.
Andy Blackledge
Andy Blackledge commented
I agree, extreemly poor answer. I would like to know what happens when you slap the car into reverse and start going backwards. What stops the brakes coming on and how does one alter the mechanism, or should I say servis it. Andy.

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