Brake Booster: Installation

Mount brake booster in position.
Connect operating rod to brake pedal with clevis pin and snap pin.

Fig 1: Connecting Operating Rod To Brake Pedal With Clevis Pin And Snap Pin
Courtesy of SUBARU OF AMERICA, INC.
Connect vacuum hose to brake booster.

Fig 2: Connecting Vacuum Hose To Brake Booster
Courtesy of SUBARU OF AMERICA, INC.
Mount master cylinder onto brake booster.
Connect brake pipes to master cylinder.
Connect electric connector for brake fluid level indicator.
Adjust operating rod of brake booster.
Standard: L

145.3 mm (5.72 in)

If it is not in specified value, adjust it by adjusting brake booster operating rod.

Fig 3: Identifying Brake Booster Operating Rod Length
Courtesy of SUBARU OF AMERICA, INC.
Measure the clearance between threaded end of stop light switch and stopper.
If it is not in specified value, adjust it by adjusting position of stop light switch.

CAUTION: Be careful not to rotate stop light switch.

Stop light switch clearance: A

0.3 mm (0.012 in)

Fig 4: Identifying Clearance Between Threaded End Of Stop Light Switch And Stopper
Courtesy of SUBARU OF AMERICA, INC.
Apply grease to operating rod connecting pin to prevent it from wearing.
Bleed air from brake system.
Tightening torque (Air bleeder screw):

8 N.m (0.8 kgf-m, 5.8 ft-lb)
Conduct road tests to ensure brakes do not drag.