Mazda 626 1981 - 7 B-07

7B
Fig.
78-25
Fig.
78-26
Fig.
78-27
Fig
.
78-28
7B:
7
6.
With
the
hex·head
wrench
(49 0378
346),
remove
the
eight one-way
clutch
inner race
attachi
ng
bolts
from
the
rear
of
the
case.
7.
Inner race
8. Snap ring
9.
Piston
return
spring
I
0.
Spri
ng
ring
11. Remove
the
low
and
reverse
brake
piston
from
the
case
by
blowing compressed
air
into
the
port
located
at
the
rear
of
the
case.
b. Checking
1.
Check
the
friction and steel plates for wear and
scoring. Check
the
plates for fit
on
the
transmission
case
serrations.
Replace all plates
that
are
badly
scored,
worn
or
do
not
fit freely in
the
case serrations.
2.
Check
the
pis
ton
return
spring for excessive wear,
distortion
or
damage.
3.
Check
the
seal rubbers
on
the
inside and outside
of
the
piston
for wear
and any
damages.
c. Assembly
Assemble
the
low and reverse
brake
in
the
.reverse
order
of
disassembl
y.
Note
:
a) Discard
the
old
seals
and
use new seals.
bl Before assembling,
dip
all
parts
in
clean
transmission
fluid.
c) Tighten
the
attaching
bolts
of
one-way
clutch
inner
race
to
1.3
-
1.8
m-kg
(9 -
13
ft
·lb),
using
th
e
hex·head
wrench
extension
(49
0378
345)
and
torque
wrench.
d) With a feeler gauge,
check
the
clearance
between
the
retaining plate
and snap ring.
The
clearance
should
be
0.8 - 1.
05
mm
(0.031 "" 0.041
in).
If
it
is
not
within
the
specification,
adjustment
ain
be
made
with
selective retaining plate.
The
retaining
plates
are available in
the
following six
thicknesses:
7.8
mm
(0.307
in)
8.4
mm
(0.331
in)
8.0
mm
(0.31
S
In)
8.6
mm
(0.339
in)
8.2
mm
(0.323
in)
8.8
mm
(0.346
in)
e)
Check
the
operation
of
the
low
and
reverse brake
by
blowing
compressed air
into
the
oil hole.
_
,/
..