Hyundai Elantra
Petrol engines 1,6, 1,8 and 2,0 l
The diesel engine of 2,0 l
Greasing system
Cooling system
Fuel system
Monitoring systems and decrease in toxicity of the fulfilled gases
Ignition system
System of preliminary heating of the diesel engine
Coupling
Mechanical transmission
Automatic transmission
Power shafts, forward and back axes
Suspension bracket
Steering
- Brake system
Specifications
Check of the vacuum amplifier of brakes
Check of the unilateral vacuum valve
Prorolling of hydraulic system of a drive of brakes
Adjustment of a course of a lay brake
Brake pedal
The vacuum amplifier of brakes
The main brake cylinder
Replacement of lobbies brake pads
Support of a forward brake
Back disk brakes
Back drum-type brakes
Replacement of the working brake cylinder
Pressure regulator
Brake tubes and hoses
Lay brake
Antiblocking system of brakes (ABS)
Hydraulic block HECU
The gauge of frequency of rotation of a wheel
Prorolling of hydraulic system of a drive of brakes with scanner use
Search and elimination of malfunctions
Body
Air central air
The electric equipment
Electric schemes
|
Brake system
Specifications
|
Data
|
Value
|
|
The main brake cylinder |
– Type
|
Тандемный
|
– Diameter of the cylinder, mm
|
CBS (Conventional Brake System – usual brake system)
|
22,22
|
|
|
23,81
|
|
The vacuum amplifier of brakes |
– Type
|
The vacuum
|
– Effective diameter, mm
|
|
|
228,6
|
|
|
177,8–203,2
|
– A parity
|
|
|
5,5:1
|
|
|
6,0:1
|
|
The pressure terminator |
4DR 5DR
|
– Pressure of inclusion, мПа
|
2,55 3,9
|
– The relation декомпрессии
|
0,27:1 0,32:1
|
|
Forward brakes |
– Type
|
Disk, ventilated
|
– Diameter of a brake disk, mm
|
257
|
– A thickness of a brake disk, mm
|
24
|
– A thickness brake pads, mm
|
11
|
– Diameter of the cylinder, mm
|
54
|
|
Back disk brakes |
– Diameter of a brake disk, mm
|
258
|
– A thickness of a brake disk, mm
|
10
|
– A thickness brake pads, mm
|
9
|
|
Back drum-type brakes |
– Internal diameter of a brake drum, mm
|
203,2
|
– A thickness brake pads, mm
|
9,4
|
– Diameter of the cylinder, mm
|
405
|
|
Lay brake |
Mechanical, influencing back wheels
|
Antiblocking system of brakes
| Data |
Value |
|
The block of management ECU
|
– Pressure of a food, In
|
10–16
|
– A range of temperatures, С
|
–40 … 110
|
|
Control lamp: ABS, EBD
|
– Pressure of a food, In
|
12
|
– A consumed current, мА
|
80
|
|
The gauge of frequency of rotation of a wheel
|
– Resistance, the Ohm
|
1275–1495
|
– Target frequency, Hz
|
15–2000
|
– Target pressure, In
|
0,15
|
– An air backlash, mm
|
0,2–1,2
|
|
Hydraulic block HECU
|
– Weight, kg
|
2,5
|
– The engine
|
12 IN, 30 AND
|
– Capacity of the engine, Vt
|
180
|
– Productivity, sm 3 / with
|
5,5
|
Adjusting data
|
Data
|
Value
|
| Height of installation of a pedal of a brake, mm |
170
|
| Course of a pedal of a brake, mm |
128
|
| Backlash of the switch of stoplights, mm |
0,5–1,0
|
| Free wheeling of a pedal of a brake, mm |
3–8
|
| Backlash between a pusher of the vacuum amplifier of brakes and the main brake cylinder, mm |
0
|
| Course of the lever of a lay brake at a tightening its effort 196 Н |
8 clicks
|
| Is minimum admissible thickness of overlays of lobbies brake pads, mm |
2
|
| Is minimum admissible thickness of a brake disk, mm |
22,4
|
| Is minimum admissible thickness of overlays back brake pads (a drum-type brake), mm |
1
|
| As much as possible admissible diameter расточки a brake drum, mm |
205,2
|
| Is minimum admissible thickness of a back brake disk, mm |
8
|
The inhaling moments, Nm
|
Data
|
Value
|
| Nuts of fastening of the main brake cylinder to an arm |
8–12
|
| Nuts of fastening of an arm of the main brake cylinder |
13–16
|
| The union of a vacuum hose to the air broad chamber |
15–18
|
| The prorolling union |
7–9
|
| Connecting nuts of brake tubes |
13–17
|
| Bolt of fastening of a directing finger of a support |
22–32
|
| Bolts of fastening of a support to a rotary fist |
65–75
|
| Hollow bolt of fastening of a brake hose to a forward support |
25–30
|
| Bolts of fastening of the working brake cylinder |
12–18
|
| The forward gauge of frequency of rotation of a wheel |
8,2–9,7
|
| The back gauge of frequency of rotation of a wheel |
8,2–9,7
|
| Bolts of fastening of the block of management and hydraulic block HECU |
8–10
|
| Bolts of fastening of arms of the block of management ECU and hydraulic block HECU |
9–10
|
| Six brake tubes to the hydraulic block |
13–17
|
|
|
At installation it is necessary to use new self-locking nuts. |
The general information
On cars the working brake system with a hydraulic drive is used.
The system works as follows:
– The brake pedal is connected with the main brake cylinder;
– When the pedal is pressed, the liquid under pressure from the main brake cylinder on metal tubes and flexible hoses is transferred to forward and back brake mechanisms;
– Working brake cylinders represent hydraulic modulators which transform the pressure of a liquid created in the main brake cylinder, to moving of elements of the brake mechanism;
– Forward and back pistons of a support of a brake move and at the expense of a friction about brake disks and drums provide demanded delay of the car;
– At release pedals of a brake pressure in system decreases.
Brake pads and pistons come back to neutral or to a starting position and braking stops.
At reduction of level of a brake liquid the gauge of level of a liquid in the main brake cylinder includes a control lamp in combinations of devices. If the control lamp burns, first of all, check up that the lay brake is released, as the lamp specifies in the lowered level of a liquid and the tightened lay brake.
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