Mazda 121 - Replacement of Brake Fluid Air Bleeding; Inspection of Parking Brake; Inspection of Power Brake Unit and Hoses

SCHEDULED
MAINTENANCE
SERVICES
REPLACEMENT
OF BRAKE
FLUID
AIR
BLEEDING
1. Remove
the brake
fluid kom the
reservoir by using
a suc-
lon
pump.
2. Fill the
reservoir
with new brake
fluid.
Fluid
apecllication:
FMVSS
116: DOT-3
SAE: J1703
3. Attach
a vinyltubeto
the bleeder
screw and
place
the oth-
er end
ol the
vinyl tube in a containel.
4. Pump out
the old brake
fluid by loosening
each
bleeder
screw
(one
by one) and
pumping
the brake
pedal.
5. Bleed
air as described
below.
Cautlon
.
The tluid
in the reservolr
must be
maintalned al
the
Z4
l€vel
or higher durlng
air bleeding.
.
Be caretul
nol to spill
brake lluid onto
Painted
surtaces.
'1.
Jack
up the
vehicle and
support it with salety
stands
2.
Remove lhe
bleeder cap
and attach a
vinyl hose to the
bleeder
plug.
3. Place
the other end
of the
vinyl tube in a container.
4. Slowly
pump
the brake
pedal
several times.
5.
Whilethe
brake
pedal
is
pressed,
loosenthe bleeder
screw
to let
fluid and a'r
escape.
6. Repeat
steps 4 and
5 until there
are no air bubbles
in the
fluid.
7. Check for
cotrect brake
operation.
8.
Check to
be sure that there
is no fluid
leakage. Be sure
to
clean
away any
spilled
fluid with rags.
9. After
bleeding the
air, add brake
fluid to the
reservoir up
to the
sDeciiied
level.
INSPECTION
OF
PARKING
BRAKE
1. Pullthe
brake
lever with 98
N
(10
kg, 22
lb) ol force and
measure
the lever
stroke.
2. lf necessary,
adjust the
lever stroke by
turning the
adjust-
Ing nut.
Stroke: 6-8
noiches
INSPECTION
OF POWER
BRAKE UNIT
AND
HOSES
1. Check
the vacuum
hose, connectors
and
check-valve
for
cracks,
chafing, deterioration
etc.
2.
With the engine
stopped, depress
the
pedal
a few times
3.
With the
pedal
depressed, start
the engine.
4. lf,
immediately after
the engine starts,
the
pedal
moves down
slightly,
the unit is
good.
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A-17