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47
Brakes/Hydraulic
Parts
(Regulators,
Booster)
928
2.Connect
line
from tester
(mini-
ature
coupling)
to test
adapter.
Test
I
Build
up input
overpressure
(shown
on manometer)
of front
brake
caliper
(unregulated
wheel)
in
accordance
with
table.
Read output
overpressure
on manometer
of rear
brake
caliper
(regulated
wheel)
(specified
reading,
see table
below).
Note:
If
the
input
overpressure
(unregu-
lated
wheel)
is inadvertantly
exceeded,
do not reduce
pressure
to
adjust.
Pressure
must be built
up
again
from 0 bar (also
applies
for
test
II).
3.Bleed
test
lines
and manometers
of pressure
tester.
Test
II
Increase
input
overpressure
(shown
on manometer)
of front
brake
caliper
(unregulated
wheel)
to 100
bar.
Read output
overpressure
on
manometer
of rear
brake
caliper
(regulated
wheel).
4.Check
switchover
pressure
of
braking-force
regulator
installed
in car
(18,
33 or 55 bar).
Before
testing,
check against
table
(page 47 - 18a/18b)
to ensure
that
correct
regulator
is
installed.
Tesl
-
I
II
I
II
Regulator
"
i
arch
55 bar
33 bar
1
55 bar
33 bar
Screw-in
rl
lator
33 bar
18 bar
33 bar
18 bar
3t wheel
70 bar
18 bar
100 bar
100 bar
egu-
48 bar
33 bar
100
bar
100 bar
a
Output
over-
pressure
( rear
axle)
a
62 +3 bar
40 T3 bar
-
75 +5 bar
64 T5 bar
-
40 +2 bar
25 T2 bar
64 +3 bar
55 73 bar
a
47 - 20
Testing
Braking-Force
Regulator
Printed
in Germany
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