Proportioning Valve - Subaru LEGACY Service Manual

10.Proportioning Valve

A: REMOVAL
1) Pull up parking brake lever, and block the tires.
2) Remove brake pipe from proportioning valve at
four places.
3) Remove proportioning valve from its bracket.
CAUTION:
Do not disassemble or adjust the proportioning
valve. (The proportioning valve must be re-
placed as an assembly.)
B: INSTALLATION
1) Install proportioning valve to bracket.
2) Connect brake pipes correctly to proportioning
valve.
3) Bleed air, then check each joint of brake pipe for
oil leaks.
Tightening torque:
Proportioning valve to brake pipe flare nut:
15 N·m (1.5 kgf-m, 10.8 ft-lb)
Proportioning valve to bracket:
18 N·m (1.8 kgf-m, 13.0 ft-lb)
PROPORTIONING VALVE
C: INSPECTION
1) Install oil pressure gauges to measure the mas-
ter cylinder fluid pressure (front wheel brake fluid
pressure) and rear wheel cylinder fluid pressure.
2) Bleed air from oil pressure gauges.
3) Check the master cylinder fluid pressure and
rear wheel cylinder fluid pressure.
The standard values are shown in Figure.
BR-00170
4) For the oil pressure in case of split point, refer to
"SPECIFICATIONS".
<Ref. to BR-2, SPECIFICATIONS, General De-
scription.>
BR-39
( 3 )
( 1 )
( 2 )
(1) Rear wheel cylinder fluid pressure: P3
(2) Master cylinder fluid pressure: P2
(3) In case of failure in one circuit
(4) When both circuits are normal
BRAKE
( 4 )
BR-00265