The pressure adjuster – the most important element of brake system of the car with the hydraulic drive without anti-lock braking system. He watches stability of the car when braking, and therefore choosing this part should devote some attention.
Instruction
1. When braking the back and front wheels are blocked not at the same time. So, if at first back wheels are blocked, the machine loses coupling with the road and can be deployed around itself, hindering thereby road traffic and creating emergency.
2. Simultaneous blocking of wheels is also undesirable as the car has no safety reserve. Blocking of front wheels is considered ideal braking. Then the car is rather steady as back wheels hold the car in stable state.
3. The pressure adjuster changes braking force of the drive depending on pressure of working liquid in master cylinder, loadings of the machine, intensity of braking. The regulator consists of the piston and two cylinders. Own characteristics of the regulator depend on the size of effort of centering spring of the piston and ratio of its areas of cut.
4. Producers leave step-by-step instructions for setup of the pressure adjuster. Most often it is necessary to carry out its following road tests. Choose direct equal wide stretch of road without biases, free from road traffic and pedestrians. The covering of the test site has to be uniform, allowing to block wheels when braking (gravel, sand).
5. Check the car, its braking mechanisms have to be cold, frictional pads of checkblocks earned extra, tires evenly worn-out, normally rolled.
6. Get into the car, accelerate it to the speed of 25-30 km/h and slow down or switch to neutral transfer. It you disconnect the motor from transmission and block all wheels. If the car behaves steadily, try to make braking at speed of 50-60 kmch. Study length of traces from the blocked wheels. Traces of back wheels have to be shorter than lobbies. If blocking of back wheels happens before lobbies - it is necessary to adjust pressure adjuster actuator. If back wheels are blocked even in the absence of load of the piston, such regulator it is considered faulty.