Subaru Forester Brakes 1999 2000 (29) PDF

10. Air Bleeding
A: GENERAL RULES FOR
EFFECTIVE BLEEDING
1) Start with the brakes (wheels) connecting to the
secondary chamber of the master cylinder.
2) The time interval between the two brake pedal
operations (from the time when the pedal is
released to the time when it is depressed another
time) shall be approximately 3 seconds.
3) The air bleeder on each brake shall be released
for 1 to 2 seconds.
B: BLEEDING PROCEDURE
CAUTION:
The FMVSS No. 116, fresh DOT3 or 4 brake
fluid must be used.
Cover bleeder with waste cloth, when loos-
ening it, to prevent brake fluid from being
splashed over surrounding parts.
Avoid mixing different brands of brake fluid
to prevent degrading the quality of the fluid.
Be careful not to allow dirt or dust to get into
the reservoir tank.
NOTE:
During bleeding operation, keep the brake
reserve tank filled with brake fluid to eliminate entry
of air.
Brake pedal operating must be very slow.
For convenience and safety, it is advisable to
have two men working.
1) Make sure that there is no leak from joints and
connections of the brake system.
2) Fit one end of vinyl tube into the air bleeder and
put the other end into a brake fluid container.
S4M0246
CAUTION:
Brake fluid replacement sequence; (A) Front
right ? (B) Rear left ? (C) Front left ? (D) Rear
right
S4M0475A
(1) Master cylinder
(2) Hydraulic unit
(3) Proportioning valve
3) Slowly depress the brake pedal and keep it
depressed. Then, open the air bleeder to discharge
air together with the fluid.
Release air bleeder for 1 to 2 seconds.
Next, with the bleeder closed, slowly release the
brake pedal.
Repeat these steps until there are no more air
bubbles in the vinyl tube.
Allow 3 to 4 seconds between the two brake pedal
operations.
CAUTION:
Cover bleeder with waste cloth, when loosen-
ing it, to prevent brake fluid from being
splashed over surrounding parts.
NOTE:
Brake pedal operating must be very slow.
4) Tighten air bleeder securely when no air
bubbles are visible.
Air bleeder tightening torque:
8
1 Nm (0.8
0.1 kg-m, 5.8
0.7 ft-lb)
42
4-4 [W10A0] SERVICE PROCEDURE
10. Air Bleeding

Subaru Forester Brakes 1999 2000 (29) Summary of Content

10. Air BleedingA: GENERAL RULES FOREFFECTIVE BLEEDING1) Start with the brakes (wheels) connecting to thesecondary chamber of the master cylinder.2) The time interval between the two brake pedaloperations (from the time when the pedal isreleased to the time when it is depressed anothertime) shall be approximately 3 seconds.3) The air bleeder on each brake shall be releasedfor 1 to 2 seconds.B: BLEEDING PROCEDURECAUTION: The FMVSS No. 116, fresh DOT3 or 4 brakefluid must be used. Cover bleeder with waste cloth, when loos-ening it, to prevent brake fluid from beingsplashed over surrounding parts. Avoid mixing different brands of brake fluidto prevent degrading the quality of the fluid. Be careful not to allow dirt or dust to get intothe reservoir tank.NOTE: During bleeding operation, keep the brakereserve tank filled with brake fluid to eliminate entryof air. Brake pedal operating must be very slow. For convenience and safety, it is advisable tohave two men working.1) Make sure that there is no leak from joints andconnections of the brake system.2) Fit one end of vinyl tube into the air bleeder andput the other end into a brake fluid container.S4M0246CAUTION:Brake fluid replacement sequence; (A) Frontright (B) Rear left (C) Front left (D) RearrightS4M0475A(1) Master cylinder(2) Hydraulic unit(3) Proportioning valve3) Slowly depress the brake pedal and keep itdepressed. Then, open the air bleeder to dischargeair together with the fluid.Release air bleeder for 1 to 2 seconds.Next, with the bleeder closed, slowly release thebrake pedal.Repeat these steps until there are no more airbubbles in the vinyl tube.Allow 3 to 4 seconds between the two brake pedaloperations.CAUTION:Cover bleeder with waste cloth, when loosen-ing it, to prevent brake fluid from beingsplashed over surrounding parts.NOTE:Brake pedal operating must be very slow.4) Tighten air bleeder securely when no airbubbles are visible.Air bleeder tightening torque:81 Nm (0.80.1 kg-m, 5.80.7 ft-lb)424-4 [W10A0] SERVICE PROCEDURE10. Air Bleeding