Brake for Forklift - A brake drum is where the friction is provided by the brake pads or brake shoes. The shoes or pads press up against the rotating brake drum. There are some various brake drums kinds along with certain specific differences. A "break drum" would normally refer to whenever either shoes or pads press onto the inner exterior of the drum. A "clasp brake" is the term used to describe when shoes press next to the exterior of the drum. One more type of brake, referred to as a "band brake" makes use of a flexible belt or band to wrap around the exterior of the drum. If the drum is pinched in between two shoes, it could be known as a "pinch brake drum." Similar to a conventional disc brake, these types of brakes are rather rare.
Previous to 1955, old brake drums needed consistent adjustment regularly so as to compensate for shoe and drum wear. Long brake pedal or "Low pedal" travel is the dangerous outcome if modifications are not carried out satisfactorily. The motor vehicle could become hazardous and the brakes can become useless if low pedal is mixed together with brake fade.
There are different Self Adjusting Brake Systems offered, and they can be categorized within two main types, RAI and RAD. RAI systems have built-in devices that prevent the systems to be able to recover when the brake is overheating. The most well known RAI makers are AP, Bendix, Lucas, and Bosch. The most well-known RAD systems comprise Bendix, Ford recovery systems, Volkswagen, VAG and AP.
The self adjusting brake will typically only engage whenever the vehicle is reversing into a stop. This method of stopping is suitable for use where all wheels use brake drums. Disc brakes are utilized on the front wheels of motor vehicles nowadays. By operating only in reverse it is less likely that the brakes would be applied while hot and the brake drums are expanded. If tweaked while hot, "dragging brakes" could happen, which raises fuel intake and accelerates wear. A ratchet tool which becomes engaged as the hand brake is set is another way the self adjusting brakes can work. This means is only appropriate in applications where rear brake drums are used. When the parking or emergency brake actuator lever exceeds a particular amount of travel, the ratchet improvements an adjuster screw and the brake shoes move toward the drum.
There is a manual adjustment knob placed at the base of the drum. It is usually adjusted through a hole on the other side of the wheel and this involves going underneath the lift truck utilizing a flathead screwdriver. It is of utmost significance to be able to move the click wheel correctly and tweak each and every wheel evenly. If uneven adjustment happens, the vehicle may pull to one side during heavy braking. The most effective way to ensure this tedious job is done carefully is to either raise each wheel off the ground and hand spin it while measuring how much force it takes and feeling if the shoes are dragging, or give each one the same amount of manual clicks and then do a road test.
Click to Download the pdf