Subaru Impreza 2003 Service Manual page 2587

12.Brake Booster
A: REMOVAL
1) Remove or disconnect the following parts at en-
gine compartment.
(1) Disconnect the connector for brake fluid lev-
el indicator.
(2) Remove the brake pipes from master cylin-
der.
(3) Remove the master cylinder installing nuts.
(4) Disconnect the vacuum hose from brake
booster.
2) Remove the following parts from pedal bracket.
(1) Snap pin and clevis pin
(2) Four brake booster installing nuts
(2)
(4)
(1) Nuts
(2) Clevis pin
(3) Snap pin
(4) Operating rod
BRAKE BOOSTER
(1)
(3)
BR-00073
BR-55
3) Remove the brake booster while shunning brake
pipes.
NOTE:
• Be careful not to drop the brake booster. The
brake booster should be discarded if it has been
dropped.
• Use special care when handling the operating
rod.
If excessive force is applied to the operating rod,
sufficient to cause a change in the angle in excess
of ±3°, it may result in damage to the power piston
cylinder.
• Use care when placing the brake booster on
floor.
• Do not change the push rod length. If it has been
changed, reset the projected length "L" to standard
length.
Standard L
10.05 mm (0.40 in)
L
CAUTION:
If external force is applied from above when the
brake booster is placed in this position, the res-
in portion as indicated by "P", may be dam-
aged.
(1) Force
BRAKE
BR-00074
(1)
P
BR-00075