Some trailers and caravans are very long and therefore incur more voltage drop than usual. Measure the voltage drop from the battery to the last electric magnet.
The correct method using 5mm cable is to run a cable down EACH chassis rail and connect each magnet independently. This type of connection is called parallel.
Here is a simple test for your electric drums to test to prove polarisation. Point your trailer coupling facing north or south. Residual magnetism can be excess positive ions(North Pole) or excess negative ions (South Pole).
Caravans and some heavier campers are continuing to experience braking problems in mountainous regions. Overheating drums are a major concern for owners as they strive to improve their braking. Couplemate have deconstructed and simplified electric braking problems.
“I have no idea what PCD is nor do I know how to calculate it?”….is an answer we hear frequently from customers. Technically, Pitch Circle Diameter (PCD) is the diameter of the circle which passes through the centre of the wheel studs, wheel bolts or wheel rim holes.
Learn how dirt roads destroy Electric Brakes. Unsuspecting caravan owners discover their electric braking systems and electric drums are being rendered defective by vibrations transferred to braking systems by corrugated roads.