Brake Booster - Subaru LEGACY Service Manual

BRAKE

9. Brake Booster

A: REMOVAL
CAUTION:
If external force is applied from above when
brake booster is placed in this position, the res-
in portion as indicated by "P", may be dam-
aged.
(1) Force
1) Pull up parking brake lever, and block tires.
2) Disconnect battery ground cable.
3) Remove or disconnect the following parts at en-
gine compartment.
(1) Disconnect connector for brake fluid level in-
dicator.
(2) Remove brake pipes from master cylinder.
(3) Remove master cylinder installing nuts.
(4) Disconnect vacuum hose from brake boost-
er.
4) Remove the following parts from the pedal
bracket.
(1) Snap pin and clevis pin
(2) Four brake booster installing nuts
5) Remove brake booster while shunning brake
pipes.
NOTE:
• Be careful not to drop brake booster. Brake
booster should be discarded if it has been dropped.
• Use special care when handling operating rod.
If excessive force is applied to operating rod, suffi-
cient to cause a change in the angle in excess of
±3°, it may result in damage to the power piston cyl-
inder.
• Use care when placing brake booster on the
floor.
• Do not change the push rod length. If it has been
changed, reset the projected length "L" to the stan-
dard length.
BRAKE BOOSTER
( 1 )
P
BR-00075
Standard:
Without VDC
L = 10 mm (0.39 in)
With VDC
L = 1.8 mm (0.071 in)
L
B: INSTALLATION
1) Mount brake booster in position.
2) Connect operating rod to brake pedal with clevis
pin and snap pin.
(1) Nuts
(2) Clevis pin
(3) Snap pin
(4) Operating rod
BR-34
BR-00074
( 1 )
( 2 )
( 3 )
( 4 )
BR-00073