Hyundai Elantra: Proportioning Valve. Repair procedures - Brake System - Brake System - Hyundai Elantra HD 2006Ц2010 Service ManualHyundai Elantra: Proportioning Valve. Repair procedures


Inspection

1.
Remove the front brake tube (B) and rear brake tube (C) from the master cylinder (A).
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.
4.
Reconnect the brake lines in their original positions and bleed the brake system.
This table shows characteristics of the proportioning valve as the pressure increases.
Front
(Output of master cylinder)
Rear
(Output of proportioning valve)
A : 26 kg/cm²
(2.55 MPa, 370 psi)
A' : 26 kg/cm²
(2.55 MPa, 370 psi)
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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