Inspection
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1. |
Remove the front brake tube (B) and rear brake tube (C) from the
master cylinder (A).
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|
2. |
Connect two pressure gauges (D); one to the output valve of the
front (B) and rear (C) brake.
|
Be sure to bleed the system after connecting the pressure
gauges.
|
|
|
3. |
With the brake applied, measure the front pressure and the rear
pressure. If the measured pressures are within the specified range as
illustrated, the proportioning valve is good.
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|
4. |
Reconnect the brake lines in their original positions and bleed
the brake system.
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This table shows characteristics of the proportioning
valve as the pressure increases.
Front
(Output of master cylinder)
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Rear
(Output of proportioning valve)
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A : 26 kg/cm²
(2.55 MPa, 370 psi)
|
A' : 26 kg/cm²
(2.55 MPa, 370 psi)
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B : 80 kg/cm²
(7.85 MPa, 1138 psi)
|
B' : 40.6 ± 3 kg/cm²
(3.98 ± 0.29 MPa, 577 ± 43 psi)
|
C : 140 kg/cm²
(13.73 MPa, 1991 psi)
|
C' : 56.8 ± 4 kg/cm²
(5.57 ± 0.39 MPa, 808 ± 57 psi)
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|
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Description
Do not disassemble the proportioning valve. The proportioning valve makes
the ideal distribution of fluid pressure to the front and rear brakes to prevent
the brakes from skiddin ...
Component Location
1. Brake caliper
2. Brake disc
3. Pad spring
4. Brake pad
5. Brake pad shim
Components
1. Bleeder screw
...
Hyundai Elantra HD: Proportioning Valve. Repair procedures
