In all cars and most trucks HYDRAULIC pressure is used to apply the brakes. In an air brake system such as is found on medium and heavy duty trucks the air is actually released to apply the brakes.
The Brake Booster increases the force applied to the brake lever so that the brake disc or drum recieves more force. Without it the brakes would be much harder to apply.
un equal adjustment of brakes will cause one brake to apply earlier and harder than other brake
Drum brakes do not have the stopping ability of disc brakes, so no not harder, but slower.
no power brakes....harder to stop
no, just the wheels the brakes apply to, usually the front brakes
form_title=Automotive Brake Service form_header=Things can happen. Ensure you can count on your breaks when you need them. What is the year, make and model of your vehicle?=_ When is the last time you had your brakes worked on?=_ Is it easier or harder than usual to apply the brakes?= () Easier () Harder () Not Sure Please describe the problem in detail.=_
Air wedge brakes apply air in a chamber pushing a wedge between two rollers, connected to one end of a brake shoe, causing them to split apart, in turn causing the two shoes to be forced into the brake drum.
When your brakes get harder and harder the more you use them and lock up, this is a symptom of brake failure. You need to take your vehicle to a qualified mechanic.
adjust isn't really the right word here. if the pedal is soft and the brakes suck, and you have to push it real hard to get any reaction out of the thing, pushing harder may not be the solution. Check the brake fluid reservoir , make sure its full. regardless if it is or not you should bleed the brakes , and you may need new pads. if the brake fluid is real empty you must bleed the brakes.
Ease up on the throttle, apply the brakes.
Could be contaminated brake fluid