Datsun C210 series Manual page 322

Lubricating points
Contact
areas
between wheel
cyl
inder anchor block
and brake shoe
Mating
surfaces between brake shoe
and brake disc
Contact
areas
between hand brake
adjuster
and brake shoe
Contact
areas
between
brake
disc
brake shoe
and toggle lever
Contact
areas
between anti rattle
pin spring seat and brake
shoe
BR092A
Fig
BR 28 Lubricating Points
5 Make
sure
that entire brake shoe
fits in
place
6 Make
sure
that
adjuster
operates
properly
7
After installation
is completed
check and
adjust shoe
to drum clear
ance
Refer
to
Rear Brake
Adjustment
8
Bleed
brake sy tem
BRAKE BOOSTER
INSPECTION OF
OPERATION
Checking
vacuum
pressure
I
Connect
a
vacuum gauge
in the
line between check valve and
Brake
Booster
l
t
1
Check
alve
2 Vacuum gauge
BR942
Fig BR 29 Air
Tight
T
t
Set
Up
Brake
System
2 Start
engine
and increase
engine
speed
Stop engine when
vacuum
gauge
indicate 66
7 kPa
500
mmHg
19 69
inHg
Air
tight
teat No load
Fifteen
seconds
after
engine
is
Probable
cause
I Air
leakage
at
check valve
2 Air
leakage
at
push rod seal
3 Air leakage
between
valve
body
and
seal
4 Air
leakage
at
valve plunger
seal
5
Damaged piping
or joints
Air
tight
test Under load
Fifteen
seconds after engine
is
stopped
and
brake fully applied
ob
serve
the rate of
drop in air pressure
registered by
vacuum
gauge If
vacuum
Probable
cause
I Air
leakage
at
check valve
2 Damaged diaphragm
3
Reaction disc
dropped
off
4 Air
leakage
at
poppet assembly
seat
and valve body
Inspecting
check valve
Remove
clip
and
disconnect
hoses
at connections
The check valve
can
now
be
removed
r
BR105A
Fig
BR 30 Location
o
Check Valve
BR 13
stopped
observe the
rate
of
drop
in air
pressure
registered by
vacuum
gauge
If
vacuum pressure
drops
more
than
the specified
value refer
to
the follow
ing
chart
to
determine the
cause
of
failure
Maximum
vacuum leakage
3 3 kPa
25 mmHg
0 98
inHg
Corrective
action
Replace check valve
Replace Brake
Booster
as
an
assembly
Repair
or
replace
pressure drops
more
than the
specified
value refer
to
the
following
chart
to
determine
tl1e
cause
of
failure
Maximum
vacuum
leakage
3 3 kPa 25
mmHg
0 98
inHg
Corrective action
Replace
check valve
Replace
Brake
Booster
as
an
assembly
2
Using
a
Brake Booster tester
ap
ply
a
vacuum
pressure of 66
7
kPa
500 mmHg 19 69 inHg
to
the port
of check valve
on
the Brake Booster
side If
vacuum
pressure
drops
more
than the
specified value
in 15
seconds
replace
check valve with
a new one
Maximum
vacuum
leakage
of check valve
1 3 kPa 10
mmHg
0 39
inHg
3 When pressure
is applied to
the
Brake Booster side of check valve
and
valve does
not
open
replace
check
valve with
a new one