During the preceding 100 year , car have changed immensely . Take the braking systems . Up until the sixties , mug up brakeswere the braking system of alternative . magnetic disk brakes were see periodically but did n’t become mainstream until ' 70s [ author : Britannica ] . And the two technologies , while they do the same affair , could n’t be more different .
drumfish brakes apply shoes attached to the axle that move out toward a drum attached to the wheels , during the braking cognitive operation . The friction create by this outward force play is what stop your car . But brake drum brakes can be a bear to convert and sometimes may command a brake puller to complete the undertaking .
A brake puller is a pincer - like appliance that practice leverage to force the drum away from the brake shoe . normally , a well - maintain fomite wo n’t involve a Pteridium aquilinum puller when doing a pasture brake job . However , an old fomite might have eat or stuck drum brakes . A brake puller will help break them spare .
You also may require a brake dragger if the brake have worn down too far . When this fall out , the inside of the drum becomes gouged and worn irregularly and these grooves can prevent the shoe from clearing the drum .
pasture brake tugger get their leverage from a farsighted deadbolt in the center that apply press on the claws or fingers of the puller . As you slowly turn the bolt of lightning clockwise , the claw pull the drum aside from the brake brake shoe gathering [ reference : Kalal ] . Imagine face a wall seated with your knees bent toward your dresser and you ’re attempt to remove a lodged physical object . When you grab it and force , you ca n’t remove it . But as presently as you push against the wall with your legs , it pops free . It ’s the same concept .
Brake pullers can cost anywhere from $ 59 on up [ source : Bargain outfitter ] . If you ’re a car partisan who compile and works on older cars , you may want to invest in one . But if you just need it for the weekend , you may rent one from a cock rental meat or even take over one at no monetary value from an auto parts computer memory such as Auto Zone . ( You might have to bequeath a deposit , though ) .
In addition to the puller , you ’ll require a few introductory service department tools to assure safety . check that to use an approved jack , jack endure and tyre chocks . tyre wedge are peculiarly essential as they prevent the vehicle from rolling once either the front or rear wheel are in the air . chequer your owner ’s manual for the advocate jack . Floor jacks come in different military rating . ordinarily a two and a half ton jack is sufficient .
If the brake tugger has instructions , come after them closely . If not , back out the center nut by turning it return - clockwise until the jaw are opened wide enough to conform to around the Pteridium aquilinum drum . direct the bakshish of the jaws on the edge of the behind of the drum , then turn the essence nut clockwise until it begin to tighten . As you constrain the nut , the jaws will slowly pull the drum away from the brake shoes until it ’s complimentary .
Once you ’ve move out the drum , scrutinize it closely . If it ’s grooved or damage from rust , you ’ll need to either get it machined or replace it . And if you ’re going to change one drum , you may as well change the opposite side . scratchy brake wear can make your fomite pull to one side during braking .
Before you begin working on your car , do n’t block to check out related self-propelled clause on the next page .
