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Brakes 407 Basic brake system 408 Hydraulic principles 408 Brake hydraulic systems 410 Master cylinders 410 Compensatingtype master cylinder 413 Centrevalve master cylinder 414 Valves in the hydraulic system 416 Wheel cylinders 418 Hydraulic brake fluid 420 Brake booster 420 Drumbrake assemblies 423 Brakeshoe assemblies 424 Discbrake assemblies 426 Parking brakes 430 Technical terms 432 Review questions 432
... brakes Generally, front brakes require a greater pressure than the rear brakes, particularly during heavy braking Disc brakes require higher pressures than drum brakes, so systems with disc brakes. .. for a rear drum brake Parking brake for disc brakes There are two designs of parking brakes for disc brakes: drum parking brakes and disc parking brakes One design has a combination of disc and... this valve, the rear drum brakes could lock before the front disc brakes were fully applied The pressure to the drum brakes is kept to about 75% of that of the disc brakes However, if a failure