Forklift Brakes - A brake wherein the friction is provided by a set of brake pads or brake shoes which press against a rotating drum shaped unit called a brake drum. There are a few specific differences between brake drum types. A "brake drum" is commonly the explanation given when shoes press on the inner surface of the drum. A "clasp brake" is the term used to be able to describe if shoes press next to the outside of the drum. Another kind of brake, referred to as a "band brake" uses a flexible belt or band to wrap around the outside of the drum. If the drum is pinched in between two shoes, it can be known as a "pinch brake drum." Similar to a typical disc brake, these kinds of brakes are rather rare.
Old brake drums, prior to the year 1995, needed to be consistently modified in order to compensate for wear of the shoe and drum. "Low pedal" could cause the required modifications are not done sufficiently. The motor vehicle can become hazardous and the brakes can become useless if low pedal is combined together with brake fade.
There are a variety of Self Adjusting Brake Systems presented, and they could be categorized within two major kinds, RAI and RAD. RAI systems have in-built devices which avoid the systems to recover whenever the brake is overheating. The most well known RAI manufacturers are Lucas, Bosch, AP and Bendix. The most famous RAD systems comprise Volkswagen, VAG, AP, Bendix and Ford recovery systems.
Self repositioning brakes generally use a mechanism that engages only when the motor vehicle is being stopped from reverse motion. This stopping approach is satisfactory for use where all wheels use brake drums. The majority of vehicles now utilize disc brakes on the front wheels. By functioning only in reverse it is less possible that the brakes will be adjusted while hot and the brake drums are expanded. If tweaked while hot, "dragging brakes" could occur, which raises fuel consumption and accelerates wear. A ratchet mechanism which becomes engaged as the hand brake is set is one more way the self adjusting brakes could function. This means is just appropriate in applications where rear brake drums are used. If the emergency or parking brake actuator lever goes beyond a specific amount of travel, the ratchet developments an adjuster screw and the brake shoes move in the direction of the drum.
Placed at the base of the drum sits the manual adjustment knob. It could be tweaked using the hole on the opposite side of the wheel. You would have to go underneath the vehicle along with a flathead screwdriver. It is extremely significant to adjust each wheel equally and to move the click wheel properly since an unequal adjustment could pull the vehicle one side during heavy braking. The most effective way to be able to make sure this tedious job is completed safely 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 clicks utilizing the hand and then do a road test.
Click to Download the pdf