{"content":[{"text":"Two-wheelers such as scooters , commuter bikes , three-wheelers including auto-rickshaws \n widely use the Drum Brake system for braking. This type of brake got its name from the drum \n structure of cylindrical-shape. Hence, the name. How does Drum Brake work? When you press \n the brake pedal, the cam turns. Thus, it causes the brake shoes to expand outwards and rub \n against the drum. The friction between the brake linings and the drum causes the drum to stop \n rotating; thereby stopping the wheel. When you release the brake pedal, the retracting springs \n bring the brake shoes back to their original position. This results in a gap between them and the \n drum and to again spin it freely. The hydraulic brake system such as in cars is a bit superior to \n the mechanical one. In this design, the hydraulic wheel cylinder replaces the cam. The brake \n shoes fit on the anchor plate or braking plate. When you press the brake pedal, the oil in the \n brake master cylinder multiplies the hydraulic force sent to the wheel cylinders. Thus, it causes \n its pistons to push outwards. The pistons, in turn, cause the brake shoes to expand and rub \n against the drum. The friction between the brake linings and the drum causes the drum to stop \n rotating, thereby the wheel to stop. Furthermore, the third type is the pneumatic-assisted brake \n system. It is actuated by air-pressure which works on the same principle of that of the \n mechanical brake system. However, high-pressure compressed air actuates a pneumatic piston \n that turns the cam. Mostly the medium to heavy commercial vehicles use this type of brake \n system. For more information, please click here. Read More: How Disc Brakes work? \n CarBikeTech is a technical blog. Its members have an experience of over 20 years in the \n automobile field. CarBikeTech regularly publishes specific technical articles on automotive \n technology. View all posts by CarBikeTech. Drum Brake Working Principle: Two-wheelers such \n as scooters , commuter bikes , three-wheelers including auto-rickshaws widely use the Drum \n Brake system for braking. Get Car Bike Tech directly in your inbox. How Drum Brake Works? \n You May Also Like. How A Gear box Transmission works? Don't miss out on Automotive \n Knowledge. The parts pile, excl. NOTE: colors are random paints I had on hand. Not \n \"color-coded\". Place pushrods in cylinder place strut and spring between shoes. Note position! \n It is installed in this pic exactly as it is shown in the parts pile above Lube contact areas on SA \n arm and pivot put guide on anchor. Install front shoe return spring to anchor. Install rear shoe \n spring to link as shown. Enter an optional name and contact email address. Name Name Email \n help private comment. Don Jun Absolute brilliant, thank you for taking the time to create and \n post! Guest May Very Helpful. Thank you. Guest Mar Am replacing brake cylinders and brakes \n on my Chevy K10 after discovering a leaking cylinder during State inspection. This picture and \n color coded piece you have prepared is absolutely the best i have ever had the pleasure of \n using. Thank you for your excellent guide! I tore down my 71 C some time ago, and until today \n I'd never installed brakes. Guest Jun Love this mate. Guest Apr All self adjuster pieces were \n gone when I dove in. Thanks a ton. I just wasn't holding my mouth quite right. Guest Mar DO \n you have the photo gallery for the Chevrolet rear brakes. R Slaughter Mar Robert, the strut \n spring tang position is of no importance as long as the spring is on the correct end of the strut. \n It simply doesn't matter whether the spring is oriented tang left or tang right, or on top or \n bottom. Robert Feb What is the correct position for the \"tang\" on the \"strut spring\". The pics \n are great and very helpful, but this spring tang is shown in conflicting positions. Billy Jan Very \n nice! If anyone wants a word doc with all these images and instructions in one printable \n document email me at veloce yahoo. The color coding really helped me with my 68 Chevy. I took \n pictures but with all the rust it all looks the same. It was hard to distinguish between the smaller \n parts and their orientation. Really well done thank you! Daryl Oct Thank you very much for such \n an awesome layout! Very helpful with my '69! Took the old ones apart a year ago and got \n sidetracked putting it all back together. You have been a lifesaver! Mike D. This will help me with \n my parking brake repairs now that I can see the parts still needed. Kevin Apr This was my first \n solo drum brake job. I couldn't have done it without these pics and info. Guest Mar What is the \n part number for the backing plate? Need one to fit the 11\" drum brakes on an '86 k10 with the \n regular GM 8. JohnG May this is the best help and diagram I have found for working on the rear \n brakes on my '99 tahoe, I couldnt have done it without this. Guest Apr Just another person \n saying thanks for posting this. Helped a first time drum brake guy put together drums from \n scratch on a '66 C John Apr Wow. The problem is my Chevy truck is a '49, which came with the \n old style huck brakes. Having no luck finding detailed instructions or a complete hardware list \n to verify that I actually have all the parts I need for the rear drums disc kit installed up front. \n Hoping you might be able to point me in the right direction Guest Aug Does anyone have a \n diagram for Metropolitan front brakes? Guest Jul Another guy that thank you superb job and let \n me finish mine. Tony Jun Adding my thanks to all those already received. This was a great help! \n Previously, I have struggled with the firstt wheel, and by the end of the second, worked out the \n sequence, and could do the next one pretty quickly: however, the next brake job occurs so \n many years later, I have forgotten what to do. This time, it was a breeze although the second","bbox":{"left":0.050964,"top":0.031288,"width":0.897902,"height":0.894159}}],"images_bbox":[],"images_bbox_not_text_overlap":[]}