A braking system for a commercial vehicle is a complex arrangement of many components, drawn from a number of sources and assembled to a chassis. Fully satisfactory braking therefore depends not only on the correct functioning of the individual components, but also on the relationships between many of them and with the vehicle as a whole.

A well designed and properly maintained braking system should develop a braking force at each axle; this should be in proportion to the load on it, and this force should be generated equally by the two brakes on the axle, i.e. the braking performance should be both predictable and controllable. The working temperature of all brakes will then be approximately the same and the vehicle should stop in an acceptable distance, without pulling to the right or left.

Most components of a trailer are ready for any duty as soon as it comes of the assembly line. Brake linings, however, need a little initial care on a new vehicle and when replacements are fitted. Once bedded–in, brake linings then only need routine inspection to determine when eventual renewal is required.

Brake linings are manufactured from a relatively soft but tough and heat-resistant material with a high coefficient of dynamic friction. The choice of material depends on the brake application and it needs to be able to absorb and disperse large amounts of heat without adversely affecting the braking performance.

To ensure your brakes are relined and skimmed right the first time, contact JMR’s brake division where high quality, reliable machines, parts and workmanship comes standard.

Continued on next article: "Brake Linings on Trailers - Maintenance"

To improve road safety in our country, the South African Traffic Police are continuously being trained by the staff of leading manufacturers of braking, tyre, axle, fifth wheel & landing leg products. Quite a number of road blocks have been set up throughout the country over the past few years, where vehicles have been pulled off the road and inspected by these manufacturers. Their findings have been shown to, and discussed with, the police in attendance.

This exercise serves to help educate the traffic police force on the legal requirements regarding the equipment and components that are fitted to vehicles operating on our roads today. So far quite a few vehicles have had their license discs removed because of some of the findings. Very recently, a legal instruction has been sent out to vehicle testing stations, instructing that, if it is discovered that a trailer’s ABS system has been tampered with, or is not operating correctly, then the vehicle test will be rejected and action may be taken against the operator.

No mention has been made about the automatic slack adjusters yet, but it is only a matter of time before these too are included in the tests. The authorities are beginning to take a closer look at operators who do not adhere to the requirements laid down in the legal specifications related to vehicle and road safety. The compulsory fitment of trailer ABS systems, automatic slack adjusters, legal tyre tread depth, King pin dimensions, brake lining condition etc. to mention just few concerns, is all necessary for our own safety and the safety of others on our roads today.

Isn’t it about time we look at the condition of our vehicles more seriously and decide to really care about road safety?

Should you have any technical related questions, or any specific concerns regarding road safety, feel free to send an email to training@trailerparts.co.za and one of our training officers will get back to you as soon as possible.

JMR is dedicated to supply quality products at a competitive price, ensuring you get the most out of your trailers. Click here to find a branch near you.

JMR Delmas has recently moved to a new, enhanced premise on 26 Third Street (Corner van Riebeeck Street). This occasion was celebrated by inviting customers, suppliers and service providers to enjoy a drink or two at JMR Delmas’ new premises, showcasing the new JMR branding which will soon to be seen at all branches. This was followed by a spit braai at a nearby restaurant, lasting well into the night.

The new premise is well situated in the heart of Delmas; the increased trading spaces allows for a larger variety of parts to be kept in stock. JMR Delmas is now also servicing the agricultural sector through its partnership with brands such as BPW and Burquip.

For more information contact JMR Delmas on 013 665 3172 or alternatively send an email to delmas@trailerparts.co.za.