Subaru SVX 1992 Manual page 888

4-4 [w10001 BRAKES
10. Brake Fluid Replacement
To always maintain the brake fluid characteristics,
replace the brake fluid according to maintenance
schedule or earlier than that when used in severe
condition.
~ A: REPLACEMENT
a . The FMVSS No. 116, fresh DOT3 or 4 brake fluid
must be used.
b. Cover bleeder with waste cloth, when loosening it,
to prevent brake fluid from being splashed over sur-
rounding parts.
c. Avoid mixing different brands of brake fluid to
prevent degrading the quality of the fluid .
d. Be careful not to allow dirt or dust to get into the
reservoir tank.
e. During bleeding operation, keep the brake reserve
tank filled with brake fluid to eliminate entry of air .
f. Brake pedal operating must be very slow .
g. For convenience and safety, it is advisable to have
two man working.
h. The amount of brake fluid required is approximately
300 me (10.1 US fl oz, 10 .6 Imp fl oz) for total brake
system .
1) Either jack up vehicle and place a safety stand under
it, or left up vehicle.
2) Remove both front and rear wheels .
3) Draw out the brake fluid from master cylinder with
syringe .
Cloth
L r~
C4-221
Fig . 126
4) Refill reservoir tank with recommended brake fluid.
Recommended brake fluid
FMVSS No. 116, fresh DOT3 or 4 brake fluid
5) Install one end of a vinyl tube onto the air bleeder of
and insert the other end of the tube into a container to
collect the brake fluid.
Fig. 127
Brake fluid replacement sequence C-C'--0-®
Front right
C Master
Rear right
cylinder
Hydraulic unit
20
Front left
Z Proportioning
Rear left
valve
C4-550
Fig. 128
6) Instruct your co-worker to depress the brake pedal
slowly two or three times and then hold it depressed .
7) Loosen bleeder screw approximately 1/4 turn until a
small amount of brake fluid drains into container, and
then quickly tighten screw .
8) Repeat steps 6) and 7) above until there are no air
bubbles in drained brake fluid and new fluid flows
through vinyl tube .
Add brake fluid as necessary while performing the air
bleed operation, in order to prevent the tank from
running short of brake fluid.
9) After completing the bleeding operation, hold brake
pedal depressed and tighten screw and install bleeder
cap .
Tightening torque (Bleeder screw) :
7 - 9 N"m (0.7 - 0.9 kg-m, 5.1 - 6.5 ft-Ib)
10) Bleed air from each wheel cylinder using the same
procedures as described in steps 5) through 9) above.
11) Depress brake pedal with a force of approximately
294 N (30 kg, 66 lb) and hold it there for approximately
20 seconds . At this time check pedal to see if it shows
any unusual movement .
Visually inspect bleeder screws and brake pipe joints to
make sure that there is no fluid leakage.
12) Install wheels, and drive car for a short distance
between 2 to 3 km (1 to 2 miles) to make sure that
brakes are operating properly .
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