brake and clutch repair
It is undeniable that the more one knows about the functions of their vehicle, the better the choices will be when new cars acquired. Furthermore, there is a better understanding of what preventive maintenance should be done and when it ought to be scheduled. Brakes are the most vital safety feature of any vehicle. There are two kinds: disc brakes and drum brakes. Functions of drum & disc brakes A drum brake is a small round drum that has a set of shoes within it. The drum brake will rotate together with the wheel and when the brake pedal is applied, the shoes are pressed up against the sides of the drum and the wheel is slowed down. A disc brake consists of a disc shaped metal rotor that rotates within a wheel. When pressure is applied to the brake pedal, a calliper will squeeze the brake pads against the disc. This will slow the wheel down as more pressure is applied to the brake pedal, bringing the car to a stop. Which brake to choose? There is a qualitative distinction between the two and some of it revolves around friction. The disc brake dispels the heat more effectively. Brake fade occurs when the brakes begin to lose their efficacy and this can happen on steep downhills for the drum brake design. It takes longer for the disc brake achieve brake fade, and these perform better on steep descends. The drum brake has the possibility of accumulating water within during rain or driving through puddles. That can lead to the drum brakes not performing as well in wetter conditions. It is possible that your car may have disc brakes in the front end with drum brakes dealing with the rear tires. The reason is pure economics. Because a car weight is going to shift with braking, over two thirds of the braking effort occurs in the front of the car. There is not quite the need to have disc brakes, which are more expensive than drum brakes, on all four wheels. The maintenance of a drum brake is also cheaper. The brake drum has an all-in-one design that is very easy to replace when repair work is needed. In fact, the brake shoes can be replaced in less than ten minutes when the drum has been taken off. This means that both parts and labour costs are dramatically reduced when a drum brake is on the car. The drum brake also gets the job done, and both types of brakes will bring the car to a stop. What is important to keep in mind is that either brake system is going to bring the car to a stop; the disc brake just does it more efficiently. The cost consideration is something that a car owner may want to think about. Understanding that most of the braking work will be at the front of the car, a model of car that has front disc brakes and rear drum brakes conceivably has the best of all possible worlds. The drum brakes in behind are much easier to replace if necessary. The owner can concentrate maintenance efforts on the front brakes and not worry too much about the rear ones. Overall safety and efficiency may be something that the car owner is concerned about, particularly in looking at a family car. In these situations, the disc brake system on all four corners may be the best because it is the safest. It just is up to consumer which brake system, either a four disc brakes or a combination of the two types, is going to be what fits the need.   Since Brakecore Supply’s inception in 1983, our mission is to continuously strive to provide our customers with the best possible quality and service at acceptable prices, and to keep on pursuing the possibilities of bettering these goals. Brakecore Supply has assembled a team of highly talented employees, who share a commitment to customers’ responsiveness and operational excellence: it is therefore our belief that encouraging and striving for excellence is through quality leadership. Additionally, Brakecore has fully equipped workshops and repair divisions covering an area of over 2000 square meters.  With qualified personnel on a 24 hour basis in order for us to be able to carry out any repair, breakdown, or modification necessary to almost any vehicle or product.
Man reading instructions
A heavy vehicle maintenance technician maintains and repairs large machines and industrial equipment, both towed and self-propelled, used in mining, forestry, agriculture, landscaping, material handling, transportation, and more. The technician needs be able to take preventative maintenance measures and regularly repair the inner combustion engines and components, as well as on-highway and off-highway vehicles, both motorised and towed; tracked and rubber-tired equipment; ground-engaging equipment; and earth-moving equipment. Maintenance and repair can involve individual components or entire systems, requiring the technician to have skill with engines, hydraulics, electronics, braking systems, and much more. The technician must utilise specific tools to diagnose functions, make alterations, repair or replace faulty components or systems, examine repairs for adequate performance, understand instructions in technical manuals, compile service reports, and certify that the work meets the manufacturers’ specifications and the requirements of legislation. The technician is frequently the link between the employer, the customer, and the manufacturer. This experience can allow the technician to advance to senior roles such as trainer, supervisor, or manager. Although technicians typically specialises in certain machines or equipment, either by choice or due to employment, the diversity of heavy equipment, along with swift changes in technology, require extensive knowledge and adaptability. Technicians should also be able to work alone or as part of a team, at a variety of hours, and in an employer’s shop, a customer’s building, or outdoors in urban or rural locations, regardless of weather. Machines often require quick intervention to enable interrupted activity to resume. Preventive maintenance is a vital part of facilities management. The aim of a successful preventive maintenance program is to institute consistent practices designed to enhance the performance and safety of the equipment on your property. Furthermore, the planned maintenance of equipment will aid in improving equipment lifespan and prevent any unplanned maintenance activity.  A successful preventive maintenance program is dependent on the cooperation of all the parties involved.  Engineering managers must rely on the knowledge, experience, and contributions of all the maintenance personnel at the property. Regrettably, the employment of a preventive maintenance program may be time consuming and costly.  This raises constant debate as to whether a preventive maintenance program is worth installing.  Will all the man hours and money spent in the program overshadow emergency repairs? From our years of experience, we believe that when the program is properly operated the benefits exceed the costs. Here are a few important benefits of a properly functioning preventive maintenance program:
  • Equipment downtime is decreased and the number of major repairs are reduced
  • Better conservation of assets and increased life expectancy of assets, thus eliminating untimely replacement of machinery and equipment
  • Reduced overtime costs and more economical use of maintenance workers due to working on a scheduled basis instead of a crash basis to repair breakdowns
  • Timely, routine repairs prevent fewer large-scale repairs
  • Improved safety and quality conditions for everyone
The work is most rewarding for those who enjoy working with their hands and are logical, curious and interested in problem solving. The technician also needs good vision, hearing, and sense of smell to diagnose problems. The occupation requires strength and stamina. Proper safety standards must be maintained at all times to avoid risk of injury involved in working on heavy equipment and with power tools.   Since Brakecore’s inception in 1983, the company has developed into one of South Africa’s premier suppliers to the agriculture, transport, industrial, marine, underground mining, and opencast mining, and earth-moving and OEM sectors as well. The Brakecore mission is to continuously strive to provide our customers with the best possible quality and service at acceptable prices, and to keep on pursuing the possibilities of bettering these goals. Brakecore have over the years assembled a team of highly talented employees, who share a commitment to customers’ responsiveness and operational excellence: It is therefore our belief that encouraging and striving for excellence is through quality leadership. Brakecore have fully equipped workshops and repair divisions covering an area of over 2000 square meters.  With qualified personnel on a 24 hour basis in order for us to be able to carry out any repair, breakdown, or modification necessary to almost any vehicle or product.  Two fully equipped field service vehicles on stand-by 24 hours to assist with any breakdown. Maintenance programs are in place to maintain 100% efficiency of all machinery.  All gauges and measuring equipment are calibrated to maintain 100% accuracy.
construction vehicle
Heavy earthmoving equipment is a construction business and road crew labour essential. These vehicles make it possible to carry out large-scale jobs in a greatly reduced time-frame. There are 4 main earthmoving vehicles that are most frequently used on construction and excavation sites. Though generally used by professionals in construction and road maintenance, some of these vehicles are available in smaller forms for nonprofessional application. Backhoe Loaders A backhoe loader is basically a tractor-like vehicle with an adjustable, bucket-shaped shovel on the front of the vehicle, and a smaller, adjustable bucket in the back of the vehicle for digging. The first backhoe loaders were manufactured in the 1950s, with the main part of the vehicle being modeled on the common farm tractor. The driver’s seat in a backhoe loader can swivel to face forward or backward to make switching from digging to shoveling easier. Compared to other earthmoving equipment, the backhoe loader is smaller and more compact, making it fitting for urban or suburban construction projects where work space may be very limited. Excavators An excavator is an example of what is termed heavy construction equipment. They are large and weighty vehicles which move on tank treads rather than tires. There is one long bucket arm on a traditional excavator, and the buckets on an excavator are frequently quite big and wide. The arm is attached to a pivoting cab, in which the operator sits. This cab can rotate a full 360 degrees, giving the operator of the excavator the benefit of being able to park the large vehicle in one spot and work the surrounding area from one convenient point. Excavators are mainly used for digging substantial amounts of dirt quickly, but are sometimes also used for heavy lifting and large pipe placement. Bulldozers As with the backhoe loader, the main vehicle component of the bulldozer was modeled on the farm tractor, while the tank treads a bulldozer uses for movement are reminiscent of the excavator. It is also considered to be heavy construction equipment, given its size, weight and the volume of earth it can move. Bulldozers are equipped with a wide, flat blade in the front. The blade is attached to two hydraulic arms that do not protrude very far from the front of the vehicle, unlike the hydraulic arms of the backhoe loader and excavator. Bulldozers are mainly used for pushing substantial piles of earth, and for grading land to make it more level. Variations on the flat front blade enable some bulldozer models to gather earth as well as move it, or to move boulders and rock piles, specifically. Dump Trucks Industrial dump trucks are another example of heavy construction equipment, and are used to transport large amounts of earth, or to transport materials like gravel to a construction site. A dump truck has no attachments, but does possess a hydraulically operated bed. When the contents within the bed are to be deposited, the end of the bed toward the front of the vehicle rises up on hydraulic pistons, causing the contents of the bed to slide off and to the ground. Traditionally, the dump truck was a large industrial piece of equipment owned only by construction companies, as well as town, city and state road crews. Recently, smaller dump trucks have been designed for the average person, which consist of a hydraulic bed mounted on a standard pickup truck.   Much like most industrial mechnisms, earthmoving equipment maintenance is paramount for all applications. Since 1983, Brakecore Supply has developed into one of South Africa’s premier suppliers to the Agriculture, Transport, Industrial, Marine, Underground Mining, Opencast Mining. Earth-moving and OEM Sectors. Mobility is a vital part of both modern life and the Brakecore Supply’s success story. Irrespective of whether on road, rail, sea, on the highway or off the highway. Brakecore Supply has fully equipped workshops and repair divisions covering an area of over 2000 m2.  With qualified personnel on a 24-hour basis for us to be able to carry out any repair, breakdown, or modification necessary to almost any vehicle or product. Additionally, maintenance programs are in place to maintain 100% efficiency of all machinery. All gauges and measuring equipment are calibrated to ensure 100% accuracy.
Brakecore - Heat Transfer Equipment

Heat Transfer Equipment

Heat transfer equipment is extremely useful in a wide range of industries. The Heat exchanger design and structure of these equipment vary a lot depending on the application, where they are used as well as the heat transfer medium involved. Below are some fundamental parameters governing the efficiency of heat transfer –  
  • Nature of fluid– Property of fluid such as conductivity, viscosity and density, play a critical role in heat transfer efficiency and determination of heat transfer efficiency.
 
  • Turbulence– A high turbulence means simpler heat transfer through convection in a fluid. As heat transfer convection is a more efficient way of heat transfer than conduction, turbulence can be used to enhance the heat transfer efficiency.
 
  • Type of flow– Usually, the medium involved in heat transfer are in continuous flow. These flows can either be parallel to each other (this is known as a co-current flow), in opposite directions to each other (this is known as a counter-current flow) or approximately perpendicular to each other (this is known as a cross flow). The temperature difference between the two media varies with location along the length of the flow. Counter current flows are the most efficient because it ensures high overall temperature difference.
 
  • Temperature difference – A high temperature difference between the involved transfer equipment ensures efficient heat transfer by increasing the heat flux.
 
  • Surface area– A high surface area available for transfer of heat energy means more efficient transfer of heat energy for the same heat flux. An enhancement in the heat transfer area could be achieved by using fins on the heat transfer surface.
  There are many different factors as well, which are not related to heat transfer but still govern the design of heat exchangers. They are capital costs, operating costs, materials used to build the heat transfer machinery, as well as the fluid phase the heat exchanger is used for. Brakecore Supply Co. is the sole distributors and agents, for L & M Radiator Inc. (Mesabi), in South Africa. All “Mesabi” cores carry a 48-month warranty against seal leakage during normal use on new genuine “Mesabi” cores and seals, from date of invoice. Brakecore Supply Co. also stock and distribute a full range of oil coolers, transmission coolers, tube and shell heat exchangers, radiator shutters and accessories. Visit our website to learn more.
wet brake
When it comes to wet disc brakes in forklifts the qualities are often debated. It has been said that the larger the forklift, the more rational it is to add the wet disc brake option. Nevertheless, this is often based on misconception. Below we have a simple outline of the pros and cons of using wet disc brakes on your forklifts. The price:
  • It is likely that there will be a price premium for wet disc brakes on your new forklift.
The performance:
  • Normally, the performance is considered better on your wet disc brakes.
  • Your regular brakes are much easier to inspect visually, indicating wear easily.
  • Both your wet and drum brakes can last for up to 20,000 hours or more.
The servicing:
  • In general, with wet disc brakes, preventative servicing must be performed more often, at intervals of 500 – 1000 hours.
  • Where an oil change does not occur regularly, the wet disc mechanism will wear out, this may result in significant mechanical and financial risks.
  • With wet disc brakes, a full service should be performed every 8,000 – 15,000 hours.
  • The application will affect the oil temperatures in your wet disc brakes.
  • If you travel at fast speeds, this can also affect oil distribution and can lead to more frequent servicing due to possible contamination from friction material or damaged seals and heat degradation.
  • The services become more expensive on your wet disc brakes due to the assembly being so complex and because there are more moving parts. Using oil coolers can help control these potential service costs.
  • Driver training can most definitely protect you against excess costs. For example, if your foot rests on the inching pedal, this can wear your discs.
You might have to pay a premium for wet disc brakes, but they will require servicing less regularly and they will last longer. However, the services will cost much more than your standard dry brakes. Contact Brakecore to discuss how you can be sure to get the most out of your wet disc brakes, and to minimise the operating costs.
grinding machines
Some vehicles make use of brake systems comprised partially of drum brakes. They’re called this because they use friction applied to metal drums which are attached to the wheels to slow or stop a car. While disc brakes offer better ranking performance and have also become more and more common on modern cars, drum brakes are still used in certain applications. Drum brakes are often found on the rear wheels of entry level cars to save costs, and also in classic cars. Parts that make up a drum brake system: Backing plate – It provides a solid base for the other components in the drum brake. It is attached to the axle sleeve. Brake drum – It is bolted to the wheel hub and it pins with the wheel. It is often made of cast iron, resistant to heat and wear. This is what you will see when looking at an assembled drum brake, it is the component that braking force is applied to in order to stop or slow the car down. Wheel Cylinder – The wheel cylinder contains two pistons, one at each end of the cylinder, operating the brake shoes. This cylinder applies pressure to the pistons, which then pushes the brake shoes to the drum, stopping or slowing down the car.  Each wheel needs one cylinder. Brake Shoe – This shoe pushes into the drum in order to create the friction needed to stop or slow down the car. It is secured to the backing, but still able to slide when pressure from the wheel cylinder is applied. IIt has a lining attached to it which is made up of organic or metallic compounds. The lining is what actually comes into contact with the drum and wears away with use. Each brake has two shoes. The primary shoe is closer to the front of your vehicle, and the secondary shoe is closer to the rear. It depends on the type and brand, these brake shoes might be interchangeable. Automatic adjuster – It keeps the brake shoes at a consistent distance away from the drum, even when the lining is wearing away. Return springs – The return springs pull the brake shoes back away from the drum while the driver lets off the brake pedal. At Brakecore we stock a large range of bus, truck, trailer and passenger car brake assembly components. Visit our website on www.brakecore.co.za for more information.